Iron-based amorphous alloy high-efficiency deoxidizer

Abstract

Use of iron-based amorphous alloy powders in deoxidizers, and a deoxidizer containing at least one of the iron-based amorphous alloy powders. The iron-based amorphous alloy powders include an iron-boron-based amorphous alloy powder, an iron-carbon-based amorphous alloy powder, and an iron-phosphorus-based amorphous alloy powder. Compared to traditional iron powders, the iron-based amorphous alloy high-efficiency deoxidizer greatly improves the deoxidation performance. Building upon on a basic formulation consisting only of an iron-based amorphous alloy powder, diatomite, and water, the iron-based amorphous alloy deoxidizer additionally includes salt and auxiliary agents such as activated carbon powder, graphite powder, silica powder, and alumina powder in order to further improve the deoxidation performance of the deoxidizer, significantly enhancing the deoxidation performance of iron-based amorphous alloy deoxidizers. Furthermore, iron-based amorphous alloy powders are characterized by low cost and high activity.

Description

Iron-based amorphous alloy high-efficiency deoxidizer TECHNICAL FIELD

[0001] The present application belongs to the technical field of deoxidizers, and in particular relates to an iron-based amorphous alloy high-efficiency deoxidizer. BACKGROUND

[0002] Deoxidizers are widely used preservatives, mainly used for oxygen removal in the packaging of easily oxidized food, medicine and the like, so as to achieve the purpose of prolonging the shelf life of food and medicine. At present, iron powder deoxidizer is the most widely used deoxidizer, which mainly includes iron powder, water, salt and the like, and consumes the oxygen in the packaging through oxidation-reduction reaction. For example, patent CN201510433709.5 discloses a deoxidizer, which is composed of iron powder, activated carbon, electrolyte, water and water-absorbing resin. The feature of the invention is to reduce the use of fillers and simplify the preparation process. CN202180021641.3 discloses a deoxidizer composition, which is composed of iron powder, water-retaining agent, swelling agent, ammonium salt and water. The feature of the invention is to improve the performance of iron powder deoxidizer by combining various auxiliary materials.

[0003] The deoxidizing capacity of deoxidizer is the core factor affecting its preservation capacity. Although the traditional iron powder deoxidizer can relatively stably remove the oxygen in the packaging, its oxygen absorption rate and durability are not ideal due to the limitation of the reducing activity of iron itself, and it is difficult to further improve its oxygen absorption performance. Therefore, it is necessary to develop a new type of low-cost and high-performance deoxidizer to meet market demand. SUMMARY

[0004] In view of the slow deoxidizing rate and poor durability of the existing iron powder deoxidizer, the present application aims to provide an iron-based amorphous alloy high-efficiency deoxidizer. The iron-based amorphous alloy is used in deoxidizer for the first time, and based on the high activity of the iron-based amorphous alloy, the deoxidizing performance of the deoxidizer is greatly improved, which has the significant advantages of fast deoxidizing rate and good durability.

[0005] To achieve the above purpose, the technical scheme adopted by the present application is as follows:

[0006] In the first aspect, the present application claims the application of iron-based amorphous alloy powder in deoxidizer, wherein the iron-based amorphous alloy powder includes iron-boron-based amorphous alloy powder, iron-carbon-based amorphous alloy powder and iron-phosphorus-based amorphous alloy powder.

[0007] The iron-boron-based amorphous alloy powder is a non-crystalline alloy powder taking Fe and B as main components, including but not limited to FeSiB non-crystalline alloy powder, FeB non-crystalline alloy powder, FeBC non-crystalline alloy powder, FeBCu non-crystalline alloy powder and FeSiBCr non-crystalline alloy powder.

[0008] The iron-carbon-based amorphous alloy powder is an amorphous alloy powder taking Fe and C as main components, including but not limited to FeCB amorphous alloy powder, FeCBSi amorphous alloy powder and FeCBSiP amorphous alloy powder.

[0009] The iron-phosphorus-based amorphous alloy powder is an amorphous alloy powder taking Fe and P as main components, including but not limited to FePC amorphous alloy powder and FePB amorphous alloy powder.

[0010] Currently, one of the core components of the deoxidizer is iron powder, and the present application first finds through experiments that, compared with the traditional iron powder, the deoxidizer containing the iron-based amorphous alloy powder has a more excellent deoxidation rate, greatly improves the deoxidation performance of the deoxidizer, and the iron-based amorphous alloy powder has the characteristics of low cost and high activity, so it has a broad application prospect in the field of deoxidizers.

[0011] In the second aspect, the present application claims to protect an iron-based amorphous alloy high-efficiency deoxidizer, which contains at least one of the above-mentioned iron-based amorphous alloy powders.

[0012] Preferably, the deoxidizer includes 100 parts by weight of the iron-based amorphous alloy powder, 10-100 parts by weight of diatomite and 14.5-96.5 parts by weight of water.

[0013] The present application provides a basic formula of a deoxidizer containing an iron-based amorphous alloy powder, which is only composed of the iron-based amorphous alloy powder, diatomite and water, and the deoxidizer of the basic formula is found through deoxidation tests that the oxygen content half-life in a closed container is not more than 6h, while the oxygen content half-life is more than 24h when the iron-based amorphous alloy powder of the present application is replaced by an equivalent amount of traditional iron powder, so it can be seen that even the deoxidizer of the basic formula containing the iron-based amorphous alloy powder still has excellent deoxidation performance.

[0014] Preferably, the deoxidizer further includes 0.525-10 parts by weight of salt, and the weight ratio of the salt to water is (0.01-0.2):1.

[0015] In order to further improve the deoxidation performance of the deoxidizer, the present application further adds salt to the basic formula, and as known from the foregoing, the deoxidizer without salt has a faster deoxidation rate in the initial stage, and the oxygen half-life is not more than 6h, while through experiments, it is found that after the oxygen half-life is reached, the deoxidation reaction in the later stage becomes very slow due to the lack of electrolyte, and it takes more than 24h to completely remove the oxygen in the closed container, while after the addition of salt, more than 90% of the oxygen can be removed in 17h, and the oxygen can be completely removed in 23h, so the addition of salt further improves the deoxidation performance of the deoxidizer.

[0016] Further preferably, the weight ratio of the salt to water is (0.01-0.06):1, i.e. the mass concentration of the salt water solution is controlled in the range of 0.9wt%-5.66wt%, and further preferably 3.5wt%.

[0017] It is found through experiments that, when the content of other components remains unchanged, i.e. the content of the iron-based amorphous alloy powder, diatomite and water remains unchanged, only the content of the salt in the water is adjusted, it is found that too high or too low content of the salt does not further improve the deoxidizing performance of the deoxidizer, and when the content of the salt is controlled within 16.67wt%, especially in the range of 0.9wt%-5.66wt%, the deoxidizing performance of the deoxidizer can be further improved.

[0018] Preferably, the salt is a soluble salt, including but not limited to sodium chloride, potassium chloride, sodium carbonate, and different types of soluble salts can be used alone or in combination.

[0019] Preferably, the salt forms a salt water solution, and the weight ratio of the iron-based amorphous alloy powder, diatomite and the salt water solution in the deoxidizer is (1-7):(0.4-2):1.

[0020] It is found through experiments that, when the weight ratio of the iron-based amorphous alloy powder, diatomite and the salt water solution in the deoxidizer is controlled in the above range, the oxygen in the closed container can be completely removed within 24h.

[0021] Preferably, the weight ratio of the iron-based amorphous alloy powder, diatomite and the salt water solution is (2-4):(0.6-1):1.

[0022] It is found through experiments that, when the iron-based amorphous alloy powder, diatomite and the salt water solution in the deoxidizer are in the above preferred ratio range, the deoxidizing performance of the deoxidizer can be further improved, and the oxygen in the closed container can be completely removed in no more than 20h, even in 12h.

[0023] In summary, the iron-based amorphous alloy deoxidizer with salt added on the basis of the basic formula includes, in weight parts, 100 parts of iron-based amorphous alloy powder, 10-100 parts of diatomite, 14.5-96.5 parts of water and 0.525-10 parts of salt.

[0024] Preferably, the iron-based amorphous alloy deoxidizer of the present application includes, in weight parts, 100 parts of iron-based amorphous alloy powder, 20-50 parts of diatomite, 24-48.5 parts of water and 0.875-1.75 parts of salt.

[0025] Further preferably, the iron-based amorphous alloy high-efficiency deoxidizer according to the present application comprises 100 parts by weight of the iron-based amorphous alloy powder, 40 parts by weight of diatomite, 48.25 parts by weight of water, and 1.75 parts by weight of salt. The deoxidizer of the above formulation can completely remove oxygen in a closed container within 12 hours, showing the relatively best deoxidation performance.

[0026] Preferably, the deoxidizer further comprises 1-10 parts by weight of an additive, which is at least one of activated carbon powder, graphite powder, silicon dioxide powder, and aluminum oxide powder.

[0027] On the basis of the deoxidizer composed of the iron-based amorphous alloy powder, diatomite, and aqueous sodium chloride solution, the addition of the above additive can further enhance the deoxidation performance of the deoxidizer, and the time for completely removing oxygen in a closed container can be shortened to within 12 hours.

[0028] Further preferably, in the iron-based amorphous alloy high-efficiency deoxidizer, the weight ratio of the additive to the iron-based amorphous alloy powder is (0.01-0.2):1.

[0029] Further preferably, the weight ratio of the additive to the iron-based amorphous alloy powder is (0.025-0.1):1.

[0030] It has been found through experiments that the amount of the additive in the deoxidizer should be controlled within an appropriate range, and the addition of the additive within the above ratio range shows better deoxidation effect of the deoxidizer.

[0031] Preferably, the iron-based amorphous alloy high-efficiency deoxidizer according to the present application comprises 100 parts by weight of the iron-based amorphous alloy powder, 20-50 parts by weight of diatomite, 24-48.5 parts by weight of water, 0.875-1.75 parts by weight of salt, and 1-10 parts by weight of the additive.

[0032] Further preferably, the iron-based amorphous alloy high-efficiency deoxidizer according to the present application comprises 100 parts by weight of the iron-based amorphous alloy powder, 40 parts by weight of diatomite, 48.25 parts by weight of water, 1.75 parts by weight of salt, and 2.5-10 parts by weight of the additive.

[0033] The additive is preferably activated carbon powder, graphite powder, silicon dioxide powder, or aluminum oxide powder, and the addition of the additive can further shorten the time for completely removing oxygen in a closed container to within 12 hours, and further improve the deoxidation performance of the deoxidizer.

[0034] Further preferably, the iron-based amorphous alloy high-efficiency deoxidizer according to the present application comprises 100 parts by weight of the iron-based amorphous alloy powder, 40 parts by weight of diatomite, 48.25 parts by weight of water, 1.75 parts by weight of salt, and 2.5-10 parts by weight of the additive.

[0035] The auxiliary agent is preferably activated carbon powder, and the deoxidizer of the formula can shorten the oxygen removal time to 6 hours, thereby further improving the deoxidizing performance of the deoxidizer.

[0036] Compared with the prior art, the present application has the following advantages:

[0037] (1) The present application first uses iron-based amorphous alloy powder in deoxidizers, which greatly improves the deoxidizing performance of the deoxidizer compared with traditional iron powder, and the iron-based amorphous alloy powder has the characteristics of low cost and high activity, so it has a broad application prospect in the field of deoxidizers.

[0038] (2) The present application provides a basic formula of a deoxidizer containing iron-based amorphous alloy powder, which is composed of iron-based amorphous alloy powder, diatomite and water. Compared with an equivalent amount of traditional iron powder, the basic formula can control the oxygen half-life within 6 hours, and more than 90% of the oxygen removal time within 24 hours. The oxygen half-life of the deoxidizer containing traditional iron powder is more than 24 hours. It can be seen that even the deoxidizer containing the basic formula of iron-based amorphous alloy powder still shows better deoxidizing performance than traditional deoxidizers.

[0039] (3) In order to further improve the deoxidizing performance of the deoxidizer, the present application further increases the salt component on the basis of containing iron-based amorphous alloy powder. By adjusting the appropriate salt content in the formula, the oxygen removal time can be controlled within 23 hours, and even within 12 hours. The deoxidizing performance of the iron-based amorphous alloy deoxidizer is further improved.

[0040] (4) On the basis of increasing the salt component, the present application further increases the auxiliary agent such as activated carbon powder, graphite powder, silicon dioxide powder, aluminum oxide powder, etc. in the formula, so that the oxygen removal time is further shortened to within 12 hours, or even within 6 hours. The deoxidizing performance of the iron-based amorphous alloy deoxidizer is further improved.

[0041] In summary, the present application first uses iron-based amorphous alloy in deoxidizers, and studies and optimizes the formula of the deoxidizer, obtaining a series of iron-based amorphous alloy high-efficiency deoxidizers with excellent deoxidizing performance. The iron-based amorphous alloy powder has the characteristics of low cost and high activity, so the series of iron-based amorphous alloy high-efficiency deoxidizers of the present application have good market application prospect. BRIEF DESCRIPTION OF DRAWINGS

[0042] Figure 1 is a deoxidizing effect diagram of the iron-based amorphous alloy high-efficiency deoxidizer of Example 1;

[0043] Figure 2 is a deoxidizing effect diagram of the iron-based amorphous alloy high-efficiency deoxidizer of Example 2;

[0044] Figure 3 is a curve of oxygen concentration changing with time corresponding to the deoxidizers of Example 2 and Comparative Example 1;

[0045] Figure 4 is a graph showing the oxygen concentration over time for the deoxidizer of Example 6 and Comparative Example 2. Embodiments of the present application

[0046] For better illustrating the purpose, technical solution and advantages of the present application, the present application will be further described in conjunction with specific examples. Those skilled in the art should understand that the specific examples described herein are only used to explain the present application, and are not used to limit the present application. The test methods used in the examples are conventional methods unless otherwise specified; the materials, reagents, etc. used are commercially available unless otherwise specified.

[0047] Example 1

[0048] The present embodiment provides an iron-based amorphous alloy high-efficiency deoxidizer, which comprises the following components: 2g of iron-silicon-boron amorphous powder, 0.8g of 3.5wt% sodium chloride aqueous solution, and 0.4g of diatomite.

[0049] The composition of the deoxidizer of the present embodiment is converted into parts by weight, which comprises 100 parts of iron-silicon-boron amorphous powder, 20 parts of diatomite, 38.6 parts of water, and 1.4 parts of sodium chloride.

[0050] The oxygen removal effect test of the iron-based amorphous alloy high-efficiency deoxidizer of the present embodiment is as follows:

[0051] 2g of iron-silicon-boron amorphous powder, 0.8g of 3.5wt% sodium chloride aqueous solution, and 0.4g of diatomite are mixed, and the mixture is subjected to a deoxidation test in a closed container with an effective volume of 500mL at room temperature. The initial oxygen concentration is 20.9%, and the test time is 24h. The oxygen concentration in the closed container during the test is monitored, and the time when the oxygen concentration in the closed container reaches 10.4% (oxygen removal half-life), 2.0%, and 0.0% (i.e. complete removal) is recorded, as shown in Figure 1.

[0052] As can be seen from Figure 1, the iron-based amorphous alloy high-efficiency deoxidizer of the present embodiment can reduce the oxygen in the closed container to half (10.4%) after 6.5h of testing, reduce the oxygen in the closed container to 2.0% after 17h of testing, and completely remove the oxygen in the closed container after 23h of testing.

[0053] Example 2

[0054] The present embodiment provides an iron-based amorphous alloy high-efficiency deoxidizer, which comprises the following components: 2g of iron-silicon-boron amorphous powder, 0.5g of 3.5wt% sodium chloride aqueous solution, and 0.4g of diatomite.

[0055] The composition of the deoxidizer in this example is converted into parts by weight, including 100 parts of iron-silicon-boron amorphous powder, 20 parts of diatomite, 24.125 parts of water, and 0.875 parts of sodium chloride.

[0056] The difference between this example and Example 1 is that the amount of 3.5wt% sodium chloride aqueous solution is reduced in this example.

[0057] Referring to the oxygen removal effect test method in Example 1, the time when the oxygen concentration in the closed container placed with the deoxidizer in this example reaches 10.4% (oxygen removal half-life), 2.0%, and 0.0% (i.e. complete removal) respectively is recorded, as shown in FIG. 2.

[0058] As can be seen from FIG. 2, when the test is conducted for 5.5h, the iron-based amorphous alloy high-efficiency deoxidizer in this example can reduce the oxygen in the closed container to half (10.4%), when the test is conducted for 15h, the oxygen in the closed container is reduced to 2.0%, and when the test is conducted for 19h, the oxygen in the closed container can be completely removed.

[0059] As can be seen from the comparison of the oxygen removal effect between Example 1 and Example 2, reducing the amount of 3.5wt% sodium chloride aqueous solution in the deoxidizer of Example 2 can shorten the oxygen removal time and improve the deoxidation performance. Too much aqueous solution will exceed the water retention capacity of diatomite, therefore, the proportion of 3.5wt% sodium chloride aqueous solution and diatomite in the deoxidizer should not be too large.

[0060] Comparative Example 1

[0061] In this comparative example, the iron-based amorphous alloy powder (iron-silicon-boron amorphous powder) in Example 2 is replaced with traditional iron powder, and the other components are the same as in Example 2. The composition of the deoxidizer in this comparative example is: 2g of pure iron powder, 0.5g of 3.5wt% sodium chloride aqueous solution, and 0.4g of diatomite.

[0062] Referring to the oxygen removal effect test method in Example 1, the oxygen concentration-time curves in the closed containers placed with the deoxidizer in this comparative example and the deoxidizer in Example 2 are recorded respectively, as shown in FIG. 3.

[0063] As can be seen from FIG. 3, the oxygen half-life of the deoxidizer in Example 2 is 5.5h, and the oxygen in the closed container can be completely removed after 19h of testing, while the oxygen half-life of Comparative Example 1 is more than 24h. It can be seen that the efficiency of the deoxidizer in Example 2 for removing oxygen is significantly better than that of Comparative Example 1. This result shows that, compared with traditional iron powder, iron-based amorphous alloy powder can greatly improve the deoxidation performance of the deoxidizer.

[0064] Example 3

[0065] The embodiment provides an iron-based amorphous alloy high-efficiency deoxidizer, which comprises the following components: 2g of iron-silicon-boron amorphous powder, 1g of 3.5wt% sodium chloride aqueous solution and 0.4g of diatomite.

[0066] The composition of the deoxidizer in the embodiment is converted into weight parts, and comprises 100 parts of iron-silicon-boron amorphous powder, 20 parts of diatomite, 48.25 parts of water and 1.75 parts of sodium chloride.

[0067] The difference between the embodiment and example 1 is that the amount of the 3.5wt% sodium chloride aqueous solution is increased.

[0068] Example 4

[0069] The embodiment provides an iron-based amorphous alloy high-efficiency deoxidizer, which comprises the following components: 2g of iron-silicon-boron amorphous powder, 0.5g of water and 0.4g of diatomite.

[0070] The composition of the deoxidizer in the embodiment is converted into weight parts, and comprises 100 parts of iron-silicon-boron amorphous powder, 20 parts of diatomite and 25 parts of water.

[0071] The difference between the embodiment and example 2 is that the 3.5wt% sodium chloride aqueous solution is replaced by an equal amount of pure water, and the deoxidizer in the embodiment does not contain sodium chloride.

[0072] The compositions of the deoxidizers in examples 1-4 and oxygen removal performance parameters are shown in Table 1, wherein the oxygen removal performance parameters refer to the time required for reducing the oxygen concentration in a closed container to 10.4%, 2.0% and 0.0% respectively.

[0073] Table 1

[0074]

[0075] It can be known from the comparison of examples 1-3 that, with the increase of the amount of the 3.5wt% sodium chloride aqueous solution in the deoxidizer, the efficiency of the deoxidizer for removing oxygen in the closed container shows a downward trend, which indicates that the salt water content in the deoxidizer should not be too high; it can be known from the comparison of example 4 and example 1 that, in the case of not containing sodium chloride, although the deoxidation rate is faster in the initial stage, the deoxidation reaction becomes slow in the stage after reaching the oxygen half-life period due to the lack of electrolyte.

[0076] Example 5

[0077] The embodiment provides an iron-based amorphous alloy high-efficiency deoxidizer, which comprises the following components: 2g of iron-silicon-boron amorphous powder, 1g of 3.5wt% sodium chloride aqueous solution and 0.6g of diatomite.

[0078] The composition of the deoxidizer of the present example is converted into parts by weight, and includes 100 parts of iron-silicon-boron amorphous powder, 30 parts of diatomite, 48.25 parts of water, and 1.75 parts of sodium chloride.

[0079] Example 6

[0080] The present example provides an iron-based amorphous alloy high-efficiency deoxidizer, which includes the following components: 2g of iron-silicon-boron amorphous powder, 1g of 3.5wt% sodium chloride aqueous solution, and 0.8g of diatomite.

[0081] The composition of the deoxidizer of the present example is converted into parts by weight, and includes 100 parts of iron-silicon-boron amorphous powder, 40 parts of diatomite, 48.25 parts of water, and 1.75 parts of sodium chloride.

[0082] Example 7

[0083] The present example provides an iron-based amorphous alloy high-efficiency deoxidizer, which includes the following components: 2g of iron-silicon-boron amorphous powder, 1g of 3.5wt% sodium chloride aqueous solution, and 1g of diatomite.

[0084] The composition of the deoxidizer of the present example is converted into parts by weight, and includes 100 parts of iron-silicon-boron amorphous powder, 50 parts of diatomite, 48.25 parts of water, and 1.75 parts of sodium chloride.

[0085] Example 8

[0086] The present example provides an iron-based amorphous alloy high-efficiency deoxidizer, which includes the following components: 2g of iron-silicon-boron amorphous powder, 1g of 3.5wt% sodium chloride aqueous solution, and 1.5g of diatomite.

[0087] The composition of the deoxidizer of the present example is converted into parts by weight, and includes 100 parts of iron-silicon-boron amorphous powder, 75 parts of diatomite, 48.25 parts of water, and 1.75 parts of sodium chloride.

[0088] Example 9

[0089] The present example provides an iron-based amorphous alloy high-efficiency deoxidizer, which includes the following components: 2g of iron-silicon-boron amorphous powder, 1g of 3.5wt% sodium chloride aqueous solution, and 2g of diatomite.

[0090] The composition of the deoxidizer of the present example is converted into parts by weight, and includes 100 parts of iron-silicon-boron amorphous powder, 100 parts of diatomite, 48.25 parts of water, and 1.75 parts of sodium chloride.

[0091] The compositions of the deoxidizers of Examples 3, 5-9 and the oxygen removal performance parameters are shown in Table 2, wherein the oxygen removal performance parameters refer to the time required for the oxygen concentration in the closed container to be reduced to 10.4%, 2.0%, and 0.0%, respectively.

[0092] Table 2

[0093]

[0094] From the results of Table 2, it can be seen that, with the iron-silicon-boron amorphous powder and 3.5wt% sodium chloride aqueous solution remaining at 2g and 1g respectively, the deoxidation rate increases first and then decreases with the increase of the amount of diatomite. In combination with the test results of the preceding Examples 1-3, it is shown that, in the deoxidant components, when the amount of the salt aqueous solution is relatively high, the amount of diatomite can be appropriately increased, so as to obtain a deoxidant with a better deoxidation effect. In the deoxidant components, the amount ratio of diatomite to 3.5wt% sodium chloride aqueous solution is (0.5-1.5):1, and more preferably (0.6-1):1.

[0095] Comparative Example 2

[0096] This comparative example provides a deoxidant including the following components: 2g of traditional iron powder, 1g of 3.5wt% sodium chloride aqueous solution, and 0.8g of diatomite. The difference between this comparative example and Example 6 is that the deoxidant in this comparative example is traditional iron powder instead of the iron-based amorphous powder (iron-silicon-boron amorphous powder) in Example 6.

[0097] Referring to the oxygen removal effect test method in Example 1, the oxygen concentration-time curves of the closed containers containing the deoxidant of this comparative example and the deoxidant of Example 6 are recorded respectively, as shown in Figure 4.

[0098] From Figure 4, it can be seen that the oxygen half-life period in Example 6 is 3h, which is much smaller than 24h in Comparative Example 2, and this result shows that the deoxidation efficiency of the deoxidant containing the iron-based amorphous powder is significantly better than that of the deoxidation efficiency of the deoxidant containing the crystalline iron powder.

[0099] Example 10

[0100] This example provides an iron-based amorphous alloy system high-efficiency deoxidant including 2g of iron-silicon-boron amorphous powder, 2g of 3.5wt% sodium chloride aqueous solution, and 1.6g of diatomite.

[0101] The composition of the deoxidant of this example is converted into parts by weight, including 100 parts of iron-silicon-boron amorphous powder, 80 parts of diatomite, 96.5 parts of water, and 3.5 parts of sodium chloride.

[0102] Example 11

[0103] This example provides an iron-based amorphous alloy system high-efficiency deoxidant including 2g of iron-silicon-boron amorphous powder, 0.3g of 3.5wt% sodium chloride aqueous solution, and 0.2g of diatomite.

[0104] The composition of the deoxidizer of the present example is converted into parts by weight, including 100 parts of iron silicon boron amorphous powder, 10 parts of diatomite, 14.475 parts of water, and 0.525 parts of sodium chloride.

[0105] The composition of the deoxidizer of Examples 10 and 11 and the oxygen removal performance parameters are shown in Table 3, wherein the oxygen removal performance parameters refer to the time required for the oxygen concentration in the closed container to be reduced to 10.4%, 2.0%, and 0.0%, respectively.

[0106] Table 3

[0107]

[0108] As can be seen from the results in Table 3, when the amount of iron silicon boron amorphous powder remains unchanged at 2 g, the amount of diatomite and salt solution is too much or too little relative to the iron silicon boron amorphous powder, which reduces the deoxidation performance of the deoxidizer, even if the ratio of the amount of diatomite and salt solution to the amount of iron silicon boron amorphous powder remains within the preferred range of (0.6-1):1. This result indicates that the amount of diatomite and salt solution is closely related to the amount of iron-based amorphous powder, and together determines the deoxidation performance of the deoxidizer.

[0109] Example 12

[0110] The present example provides an iron-based amorphous alloy high-efficiency deoxidizer, which includes 2 g of iron silicon boron amorphous powder, 1 g of water, and 0.8 g of diatomite.

[0111] The composition of the deoxidizer of the present example is converted into parts by weight, including 100 parts of iron silicon boron amorphous powder, 40 parts of diatomite, and 50 parts of water.

[0112] Example 13

[0113] The present example provides an iron-based amorphous alloy high-efficiency deoxidizer, which includes 2 g of iron silicon boron amorphous powder, 1 g of water, 0.8 g of diatomite, and 0.2 g of sodium chloride.

[0114] The composition of the deoxidizer of the present example is converted into parts by weight, including 100 parts of iron silicon boron amorphous powder, 40 parts of diatomite, 50 parts of water, and 10 parts of sodium chloride.

[0115] The composition of the deoxidizer of Examples 6, 12, and 13 and the time for complete oxygen removal are shown in Table 4.

[0116] Table 4

[0117]

[0118] From the results of Table 4, compared with Example 6, the deoxidizer of Example 12 does not contain salt, and the concentration of NaCl aqueous solution in Example 13 is 16.67wt%, which significantly increases the salt content. According to the test results of deoxidation effect, it can be known that the deoxidizer without salt or with high salt concentration will reduce the deoxidation performance of the deoxidizer, but it is still better than the deoxidation effect of the deoxidizer containing traditional iron powder.

[0119] Example 14

[0120] The present embodiment provides an iron-based amorphous alloy high-efficiency deoxidizer, which includes 2g of iron-silicon-boron amorphous powder, 1g of 3.5wt% sodium chloride aqueous solution, 0.8g of diatomite, and 0.05g of activated carbon powder.

[0121] The composition of the deoxidizer of the present embodiment is converted into weight parts, which includes 100 parts of iron-silicon-boron amorphous powder, 40 parts of diatomite, 48.25 parts of water, 1.75 parts of sodium chloride, and 2.5 parts of activated carbon powder.

[0122] Example 15

[0123] The present embodiment provides an iron-based amorphous alloy high-efficiency deoxidizer, which includes 2g of iron-silicon-boron amorphous powder, 1g of 3.5wt% sodium chloride aqueous solution, 0.8g of diatomite, and 0.2g of activated carbon powder.

[0124] The composition of the deoxidizer of the present embodiment is converted into weight parts, which includes 100 parts of iron-silicon-boron amorphous powder, 40 parts of diatomite, 48.25 parts of water, 1.75 parts of sodium chloride, and 10 parts of activated carbon powder.

[0125] The composition of the deoxidizer of Example 6, 14, and 15 and the oxygen removal time are shown in Table 5.

[0126] Table 5

[0127]

[0128] From the results of Table 5, compared with Example 6, the deoxidizer of Example 14 and Example 15 increases the activated carbon powder, and the oxygen removal time is significantly shortened, and the oxygen can be completely removed within 6h. It can be seen that the addition of activated carbon powder helps to further enhance the deoxidation performance of the deoxidizer.

[0129] Example 16

[0130] The present embodiment provides an iron-based amorphous alloy high-efficiency deoxidizer, which includes 2g of iron-silicon-boron amorphous powder, 1g of 3.5wt% sodium chloride aqueous solution, 0.8g of diatomite, and 0.2g of graphite powder. The graphite can form a primary cell with the iron-based amorphous alloy powder.

[0131] The composition of the deoxidizer of the present embodiment is converted into parts by weight, including 100 parts of iron silicon boron amorphous powder, 40 parts of diatomite, 48.25 parts of water, 1.75 parts of sodium chloride, and 10 parts of graphite powder.

[0132] Example 17

[0133] The present embodiment provides an iron-based amorphous alloy high-efficiency deoxidizer, which includes 2g of iron silicon boron amorphous powder, 1g of 3.5wt% sodium chloride aqueous solution, 0.8g of diatomite, and 0.2g of silicon dioxide powder. The silicon dioxide powder mainly plays the role of dispersant.

[0134] The composition of the deoxidizer of the present embodiment is converted into parts by weight, including 100 parts of iron silicon boron amorphous powder, 40 parts of diatomite, 48.25 parts of water, 1.75 parts of sodium chloride, and 10 parts of graphite powder.

[0135] Example 18

[0136] The present embodiment provides an iron-based amorphous alloy high-efficiency deoxidizer, which includes 2g of iron silicon boron amorphous powder, 1g of 3.5wt% sodium chloride aqueous solution, 0.8g of diatomite, and 0.4g of aluminum oxide powder. The aluminum oxide powder mainly plays the role of dispersant.

[0137] The composition of the deoxidizer of the present embodiment is converted into parts by weight, including 100 parts of iron silicon boron amorphous powder, 40 parts of diatomite, 48.25 parts of water, 1.75 parts of sodium chloride, and 10 parts of graphite powder.

[0138] The compositions of the deoxidizers of Examples 6, 16, 17, and 18 and the oxygen removal time are shown in Table 6.

[0139] Table 6

[0140]

[0141] As can be seen from the results in Table 6, the addition of graphite powder, silicon dioxide powder, and other additives helps to further enhance the oxygen removal efficiency of the deoxidizer.

[0142] Example 19

[0143] The present embodiment provides an iron-based amorphous alloy high-efficiency deoxidizer, which includes 2g of iron silicon boron amorphous powder, 1g of 3.5wt% sodium chloride aqueous solution, 0.8g of diatomite.

[0144] The composition of the deoxidizer of the present embodiment is converted into parts by weight, including 100 parts of iron silicon boron amorphous powder, 40 parts of diatomite, 48.25 parts of water, 1.75 parts of sodium chloride, and 10 parts of graphite powder.

[0145] Example 20

[0146] The embodiment provides an iron-based amorphous alloy high-efficiency deoxidizer, which comprises 2 g of iron-carbon-boron amorphous powder, 1 g of 3.5 wt% sodium chloride aqueous solution and 0.8 g of diatomite.

[0147] The composition of the deoxidizer in the embodiment is converted into parts by weight, and comprises 100 parts of iron-carbon-boron amorphous powder, 40 parts of diatomite, 48.25 parts of water and 1.75 parts of sodium chloride.

[0148] The compositions of the deoxidizers in the embodiments 6, 19 and 20 and the oxygen removal time are shown in Table 7.

[0149] Table 7

[0150]

[0151] It can be seen from the results in Table 7 that the deoxidizers containing iron-boron amorphous powder or iron-carbon-boron amorphous powder also have excellent deoxidation performance.

[0152] The technical features of the above-described embodiments can be combined arbitrarily, and for the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not exist contradictions, it should be considered that the combinations are within the scope of the present disclosure.

[0153] The above-described embodiments only express several implementation manners of the present disclosure, the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present disclosure. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present disclosure, a number of modifications and improvements can be made, which are within the protection scope of the present disclosure. Therefore, the patent protection scope of the present disclosure should be subject to the appended claims.

Claims

1. Use of an iron-based amorphous alloy powder in a deoxidizer, characterized in that, The iron-based amorphous alloy powder includes iron-boron-based amorphous alloy powder, iron-carbon-based amorphous alloy powder and iron-phosphorus-based amorphous alloy powder.

2. An iron-based amorphous alloy-based high-efficiency deoxidizer, characterized by comprising: The deoxidizer contains at least one of the iron-based amorphous alloy powder according to claim 1.

3. The Fe-based amorphous alloy deoxidizer according to claim 2, wherein The deoxidizer includes 100 parts by weight of the iron-based amorphous alloy powder, 10-100 parts by weight of diatomite and 14.5-96.5 parts by weight of water.

4. The Fe-based amorphous alloy deoxidizer according to claim 3, wherein the Fe-based amorphous alloy deoxidizer is characterized by The deoxidizer further includes 0.525-10 parts by weight of salt, and the weight ratio of the salt to the water is (0.01-0.2):

1.

5. The Fe-based amorphous alloy deoxidizer according to claim 4, wherein the Fe-based amorphous alloy deoxidizer is characterized by The salt is soluble salt, including at least one of sodium chloride, potassium chloride and sodium carbonate.

6. The Fe-based amorphous alloy deoxidizer according to claim 4, wherein The salt forms a brine solution with water, and the weight ratio of the iron-based amorphous alloy powder, diatomite and the brine solution is (1-7):(0.4-2):

1.

7. The Fe-based amorphous alloy deoxidizer according to claim 6, wherein the Fe-based amorphous alloy deoxidizer is characterized by The weight ratio of the iron-based amorphous alloy powder, diatomite and the brine solution is (2-4):(0.6-1):

1.

8. The Fe-based amorphous alloy deoxidizer according to claim 3, wherein the Fe-based amorphous alloy deoxidizer is characterized by: The deoxidizer further includes 1-10 parts by weight of an auxiliary agent, and the auxiliary agent is at least one of activated carbon powder, graphite powder, silicon dioxide powder and aluminum oxide powder.

9. The Fe-based amorphous alloy deoxidizer according to claim 8, wherein The weight ratio of the auxiliary agent to the iron-based amorphous alloy powder is (0.01-0.2):

1.

10. The Fe-based amorphous alloy high-efficiency deoxidizer according to claim 9, characterized in that, The weight ratio of the auxiliary agent to the iron-based amorphous alloy powder is (0.025-0.1):1.

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