Method for adding trace elements into water, strontium-zinc dissolving material, selenium dissolving material and preparation method

Abstract

The invention belongs to the technical field of trace elements, and particularly relates to a method for adding trace elements into water, a strontium-zinc dissolving material, a selenium dissolving material and a preparation method. The preparation method comprises the following steps: preparing a strontium-zinc dissolving material from pretreated dolomite powder, strontianite ore powder, a foaming agent, abietinol and paraffin as raw materials; selenite powder, activated carbon powder, a foaming agent, abietinol and paraffin are used as raw materials to prepare the selenium dissolving material. A strontium-zinc dissolving material and / or a selenium dissolving material are / is placed between conductive electrocatalytic electrodes, and selenium, strontium and zinc elements in the dissolving material enter water in an ionic state through electrolysis in water. According to the invention, the defects that trace elements selenium, strontium and zinc are inorganic in the process of entering water, are difficult to absorb by human bodies and are uncontrollable in content are overcome. By controlling electrolysis parameters, trace elements of selenium, strontium and zinc in water can be adjusted as required.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of trace elements, and particularly relates to a method for adding trace elements into water, a strontium-zinc dissolving material, a selenium dissolving material and a preparation method. BACKGROUND

[0002] Trace elements refer to elements with a content less than 0.01% in the human body, and a large number of academic research results have confirmed that selenium, strontium and zinc trace elements are indispensable friendly elements for human health. According to medical research, selenium, strontium and zinc trace elements have significant auxiliary therapeutic effects on improving human immunity and improving cardiovascular diseases, and also have certain inhibitory effects on tumors. For example, it is pointed out in 'Role of Trace Element Strontium in Traditional Chinese Medicine' by Zhao Jin that the biological role of strontium is closely related to bone formation, cardiovascular function and structure, and nerve muscle excitability, and strontium also has the effects of anti-aging, anti-cancer and enhancing immune function. It is pointed out in 'Discussion on the Role of Trace Element Selenium in the Human Body' by Zhang Yong that selenium has effects on preventing various cancers and also has regulating effects on hypertension and diabetes. Zinc is the most widely metabolized element in the human body, and is an important component of more than 200 enzymes, DNA and RNA in the human body. Zinc deficiency will reduce the activity of enzymes, thereby affecting the normal function of many systems of the human body. Therefore, appropriate intake of selenium, strontium and zinc trace elements is very important for health protection.

[0003] In addition to entering the human body through the intake of food containing trace elements, trace elements can also enter the human body through drinking water. At present, the method for adding trace elements into water is to crush ore containing trace elements, and then place the crushed ore in a filter bag. The filter bag is added to water, and in the process of entering the water, the trace elements are easily inorganic, and the human body is not easy to absorb. In addition, this adding method makes the content of trace elements in water uncontrollable. SUMMARY

[0004] In order to solve the above technical problems, the present application provides a method for adding trace elements into water, a strontium-zinc dissolving material, a selenium dissolving material and a preparation method. The present application prepares a selenium / strontium / zinc trace element dissolving functional material, mainly taking selenium, strontium and zinc as basic components, cooperating with a conductive electrolytic electrode, and dissolving selenium, strontium and zinc trace elements in the selenium / strontium / zinc trace element dissolving functional material through electrolysis to fuse in the drinking water in ionic state. The present application solves the problems that the trace elements selenium, strontium and zinc are inorganic in the process of entering the water, the human body is not easy to absorb, and the content is uncontrollable.

[0005] The present application is implemented by the following technical solutions.

[0006] The first object of the present application is to provide a method for adding trace elements into water, comprising the following steps: The strontium-zinc dissolving material or selenium dissolving material is prepared, the strontium-zinc dissolving material and / or the selenium dissolving material is arranged as an intermediate conductive layer between conductive electrodes, and the strontium-zinc dissolving material and / or the selenium dissolving material is anodized by the conductive electrodes to make the selenium, strontium and zinc elements in the dissolving material into water in an ionic state by electrolysis in water.

[0007] The preparation method of the strontium-zinc dissolving material comprises the following steps: The dolomite and strontium spar are pretreated, and then a mixture is prepared by taking the pretreated dolomite powder, strontium spar powder, foaming agent, cembrene and volatile agent paraffin wax as raw materials, the mixture is pressed into a required shape to obtain a strontium-zinc mixture, the strontium-zinc mixture is dried and then subjected to a strengthening treatment, and the strontium-zinc dissolving material is prepared after cooling. The preparation method of the selenium dissolving material comprises the following steps: The selenium ore is pretreated, and then a mixture is prepared by taking the selenium ore powder, activated carbon powder, foaming agent, cembrene and volatile agent paraffin wax as raw materials, the mixture is pressed into a required shape to obtain a selenium mixture, and the selenium dissolving material is prepared by subjecting the selenium mixture to a strengthening treatment.

[0008] The selenium / strontium / zinc trace element dissolving functional material is prepared, mainly taking selenium, strontium and zinc as basic components, cooperating with conductive electrocatalytic electrodes, and making the selenium, strontium and zinc trace elements in the selenium / strontium / zinc trace element dissolving functional material into water in an ionic state by electrolysis, so that the problem that the trace elements selenium, strontium and zinc are inorganic in the process of entering water and are not easily absorbed by human bodies and the content cannot be controlled is solved.

[0009] In the preferred embodiment of the present application, the mass percentage of the dolomite powder in the total amount of the dolomite powder and strontium spar powder is 20% to 50%, and the balance is the strontium spar powder, and the total is 100%; in the strontium-zinc mixture, the addition amount of the foaming agent is 0.5 times the total volume of the dolomite powder and strontium spar powder, the addition amount of the cembrene is 0.1 to 0.3 times the total volume of the dolomite powder and strontium spar powder, and the addition amount of the paraffin wax is 0.2 to 0.5 times the total volume of the dolomite powder and strontium spar powder.

[0010] In the preferred embodiment of the present application, the pretreatment steps of the dolomite and strontium spar are as follows: the dolomite and strontium spar are boiled in an oxalic acid solution with a mass concentration of 2% to 6% at a water temperature of 80 to 100 for 2 hours, cleaned with water, soaked in pure water for more than 10 hours, dehydrated and dried; and then crushed to 150 mesh.

[0011] In the preferred embodiment of the present application, when preparing the strontium-zinc dissolving material, the strengthening treatment refers to performing thermal oxidation treatment on the strontium-zinc mixture after drying, and obtaining the strontium-zinc dissolving material after cooling. The temperature of the thermal oxidation treatment is 650-970°C, and the holding time is 6 hours. Through high-temperature calcination, the raw materials are partially fused and sintered at high temperature, the particles are recombined, and finally the powder particles are transformed from soft to hard, thereby improving the mechanical strength. Alternatively, the strengthening treatment refers to coating the surface of the strontium-zinc mixture with food-grade high-temperature-resistant ceramic glue, and then drying and solidifying after standing. Preferably, the standing time is more than 24 hours, and then the treatment is performed in an oven at 70-100°C for 8 hours. The high-temperature-resistant ceramic glue is used to improve the mechanical strength of the formed trace element dissolving material.

[0012] In the preferred embodiment of the present application, when preparing the selenium dissolving material, the mass ratio of the selenium ore powder and the activated carbon powder is 1:1, the addition amount of the foaming agent is 0.5 times the total volume of the selenium ore powder and the activated carbon powder, the addition amount of the rosin alcohol is 0.1-0.3 times the total volume of the selenium ore powder and the activated carbon powder, and the addition amount of the paraffin is 0.2-0.5 times the total volume of the selenium ore powder and the activated carbon powder.

[0013] In the preferred embodiment of the present application, when preparing the selenium dissolving material, the strengthening treatment refers to performing thermal oxidation treatment on the selenium mixture after drying, and obtaining the selenium dissolving material after cooling. The temperature of the thermal oxidation treatment is 230-270°C, and the holding time is 2 hours. Through high-temperature calcination, the raw materials are partially fused and sintered at high temperature, the particles are recombined, and finally the powder particles are transformed from soft to hard, thereby improving the mechanical strength. Alternatively, the strengthening treatment refers to coating the surface of the selenium mixture with food-grade high-temperature-resistant ceramic glue, and then drying and solidifying after standing. Preferably, the standing time is more than 24 hours, and then the treatment is performed in an oven at 70-100°C for 8 hours. The high-temperature-resistant ceramic glue is used to improve the mechanical strength of the formed trace element dissolving material.

[0014] In the preferred embodiment of the present application, the pretreatment of the selenium ore includes the following steps: soaking the selenium ore in pure water and ultrasonic cleaning twice, drying after dehydration, and crushing to 50 mesh. The selenium ore powder is soaked in a 0.2-0.8% NaOH aqueous solution for 4 hours, and then ultrasonic cleaning is performed twice with pure water, and drying is performed after dehydration.

[0015] In the preferred embodiment of the present application, the shapes of the strontium-zinc dissolving material, the selenium dissolving material, and the conductive electrode are round, plate-shaped, or tubular. The surface of the conductive electrode is provided with an oxide coating layer containing Se, Sr, and Zn elements. A direct current is used, and the voltage and current are adjusted as needed. Preferably, the voltage is 9-14V, and the current is 0.5-2A.

[0016] The second object of the present application is to provide a preparation method of strontium-zinc dissolving material, comprising the following steps: pretreating the dolomite and strontium ore, then using the pretreated dolomite powder, strontium ore powder, foaming agent, cembrene alcohol and paraffin as raw materials to prepare a mixture, pressing the mixture into a desired shape to obtain a strontium-zinc mixture, drying the strontium-zinc mixture and then performing thermal oxidation treatment, and after cooling, obtaining the strontium-zinc dissolving material.

[0017] The third object of the present application is to provide a preparation method of selenium dissolving material, comprising the following steps: pretreating the selenium ore, using the selenium ore powder, activated carbon powder, foaming agent, cembrene alcohol and paraffin as raw materials to prepare a mixture, pressing the mixture into a desired shape to obtain a selenium mixture, drying the selenium mixture and then performing thermal oxidation treatment, and after cooling, obtaining the selenium dissolving material.

[0018] The fourth object of the present application is to provide a strontium-zinc dissolving material prepared by the above preparation method.

[0019] The fifth object of the present application is to provide a selenium dissolving material prepared by the above preparation method.

[0020] The amount of Se in the trace element dissolving material is 0.1-0.13%, the content of Sr (calculated as SrSO4) is 30%-60%, the content of Zn is 0.9-1.4%, and the iodine value of C is 1000mg-1300mg / L. The dissolving material contains calcium, magnesium, iron, silicon and the like.

[0021] Compared with the prior art, the present application has the following beneficial effects: Compared with the traditional method of directly adding trace element-containing ore in water, the present application uses ore raw materials containing selenium, strontium and zinc, in combination with foaming agent, cembrene alcohol and volatile paraffin, to prepare a selenium / strontium / zinc trace element dissolving functional material through strengthening treatment, which is used as an intermediate conductive layer between conductive electrodes, and cooperates with the conductive electrodes to make the selenium, strontium and zinc trace elements in the selenium / strontium / zinc trace element dissolving functional material dissolve in water through electrolysis in the form of ions, thereby solving the problems of inorganic elements, difficulty of human body absorption and uncontrollable content of trace elements selenium, strontium and zinc in water.

[0022] The trace element dissolving functional material is placed between conductive electrolytic electrodes, and the strontium and zinc trace element dissolving materials and the selenium ore dissolving material are proportioned according to water quality requirements, and electrolysis is performed by using the conductive electrolytic electrodes to control the electrolysis parameters, so that the selenium, strontium and zinc trace elements in water can be adjusted as needed.

[0023] The present application makes trace elements dissolved in water in ionic state, which is beneficial to human body absorption, and the content of trace elements in water can be controlled as needed, which provides an effective way for human body to intake trace elements, and will be widely applied in the field of health and bring huge economic benefits, in addition, the method is simple and easy to implement. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The present application provides a device structure schematic diagram for adding selenium / strontium / zinc trace elements in water. DETAILED DESCRIPTION

[0025] In order to make those skilled in the art better understand the technical solutions of the present application and implement them, the present application will be further described below in combination with specific examples and drawings, but the examples are not limiting to the present application. The experimental methods and detection methods described in the following examples are all conventional methods, unless otherwise specified; the reagents and materials described are all commercially available, unless otherwise specified.

[0026] The present application prepares strontium zinc dissolving material and / or selenium dissolving material functional material, mainly taking selenium, strontium and zinc as basic components, cooperating with conductive electrocatalytic electrode, and making selenium, strontium and zinc trace elements in the selenium, strontium and zinc trace element dissolving functional material dissolved by electrolysis, and fusing in drinking water in ionic state. The present application solves the problems that the trace elements selenium, strontium and zinc are inorganic in the process of entering water, the human body is not easy to absorb, and the content is uncontrollable. The specific technical solutions are as follows:

[0027] The present application provides a method for adding trace elements in water, comprising the following steps: Preparation of strontium zinc dissolving material or selenium dissolving material, taking strontium zinc dissolving material and / or selenium dissolving material as intermediate conductive layer, placing between conductive electrocatalytic electrodes, and making selenium, strontium and zinc elements in the dissolving material enter water in ionic state by electrolysis in water. It should be noted that strontium, zinc trace element dissolving material and selenium stone dissolving material are proportioned according to water quality requirements, electrolyzed by conductive electrocatalytic electrode, and electrolysis parameters are controlled, so that the content of selenium, strontium and zinc trace elements in water can be adjusted as needed.

[0028] When strontium zinc elements need to be added, strontium zinc dissolving material is used, when selenium elements need to be added, selenium dissolving material is used, and when strontium zinc selenium elements need to be added at the same time, strontium zinc dissolving material and selenium dissolving material are used at the same time. In order to further improve the conductivity of the selenium dissolving material, the selenium dissolving material can be wrapped with carbon fiber cloth outside.

[0029] The preparation method of strontium zinc dissolving material comprises the following steps: The dolomite and strontium spar are pretreated, and then a mixture is prepared by using the pretreated dolomite powder, strontium spar powder, foaming agent, cembrene and paraffin as raw materials, the mixture is pressed into a required shape to obtain a strontium-zinc mixture, and the strontium-zinc mixture is subjected to a strengthening treatment to obtain a strontium-zinc dissolving material.

[0030] In the preferred embodiment of the present application, the mass percentage of the dolomite powder in the total amount of the dolomite powder and the strontium spar powder is 20% to 50%, and the balance is the strontium spar powder, with the total being 100%; in the strontium-zinc mixture, the addition amount of the foaming agent is 0.5 times the total volume of the dolomite powder and the strontium spar powder, the addition amount of the cembrene is 0.1 to 0.3 times the total volume of the dolomite powder and the strontium spar powder, and the addition amount of the paraffin is 0.2 to 0.5 times the total volume of the dolomite powder and the strontium spar powder.

[0031] In the preferred embodiment of the present application, the pretreatment of the dolomite and the strontium spar is as follows: the dolomite and the strontium spar are placed in a 2% to 6% oxalic acid solution and boiled at a water temperature of 80 to 100 for 2 hours, then washed with water and soaked in pure water for more than 10 hours, dehydrated and dried; and then crushed to 150 mesh.

[0032] In the preferred embodiment of the present application, in the preparation of the strontium-zinc dissolving material, the strengthening treatment refers to a thermal oxidation treatment of the dried strontium-zinc mixture, and the strontium-zinc dissolving material is obtained after cooling; the thermal oxidation treatment is performed at a temperature of 650 to 970 for 6 hours; or the strengthening treatment refers to coating the surface of the strontium-zinc mixture with a food-grade high-temperature-resistant ceramic glue, and then drying and solidifying after standing.

[0033] The preparation method of the selenium dissolving material comprises the following steps: The preparation method of the selenium dissolving material comprises the following steps:

[0034] In the preferred embodiment of the present application, in the preparation of the selenium dissolving material, the mass ratio of the selenium ore powder to the activated carbon powder is 1:1, the addition amount of the foaming agent is 0.5 times the total volume of the selenium ore powder and the activated carbon powder, the addition amount of the cembrene is 0.1 to 0.3 times the total volume of the selenium ore powder and the activated carbon powder, and the addition amount of the paraffin is 0.2 to 0.5 times the total volume of the selenium ore powder and the activated carbon powder.

[0035] In the preferred embodiment of the present application, when preparing the selenium dissolving material, the strengthening treatment refers to performing a thermal oxidation treatment on the selenium mixture after drying, and then preparing the selenium dissolving material after cooling down. The temperature of the thermal oxidation treatment is 230-270°C, and the holding time is 2 hours. Alternatively, the strengthening treatment refers to coating a food-grade high-temperature resistant ceramic glue on the surface of the selenium mixture, and then drying and solidifying after standing.

[0036] In the preferred embodiment of the present application, the pretreatment of the selenite is as follows: the selenite is soaked in pure water and cleaned by ultrasonic wave twice, and then dried after dehydration; and the selenite powder is crushed to 50 mesh. The selenite powder is soaked in a 0.2%-0.8% NaOH aqueous solution for 4 hours, cleaned by ultrasonic wave twice, and then dried after dehydration.

[0037] In the preferred embodiment of the present application, the shape of the strontium-zinc dissolving material, the selenium dissolving material and the conductive electrocatalytic electrode is respectively round, plate or tube.

[0038] The present application will be specifically described below by the following examples.

[0039] Preparation Example 1 The preparation method of the strontium-zinc dissolving material comprises the following steps: (1) The base body of the dolomite and the strontium spar are placed in a 2% oxalic acid solution and boiled at 80°C for 2 hours, cleaned with water, soaked in pure water for more than 10 hours, and then dried after dehydration; and the powder is crushed to 150 mesh.

[0040] (2) The powder of the base body of the dolomite (20%) and the strontium spar (80%) is mixed and stirred by a vibration stirrer for 8 hours, taken out and put into the stirrer, 0.5 times the volume of the powder of the polyurethane foaming agent (purchased from Yang Zibo Insulation Building Material Co., Ltd. in Hejian City, Hebei Province) and 0.1 times the volume of the terpentine are added, and then 0.2 times the volume of the paraffin is added and stirred for 4 hours. The strontium-zinc mixture is prepared, and the required shape is formed on a press according to the requirement. The product is dried in a drying oven at 80°C for 90 minutes, and then heat-oxidized in a sintering furnace at 650°C for 6 hours. The raw materials (such as shale, clay, silicon dioxide and aluminum oxide) are partially fused and sintered at high temperature, the particles are recombined, the powder particles are finally changed from soft to hard, the mechanical strength is improved, and then the product is cooled to room temperature to form a semi-ceramic body.

[0041] Preparation Example 2 The preparation method of the strontium-zinc dissolving material comprises the following steps: (1) The base body of the dolomite and the strontium spar are placed in a 2% oxalic acid solution and boiled at 80°C for 2 hours, cleaned with water, soaked in pure water for more than 10 hours, and then dried after dehydration; and the powder is crushed to 150 mesh.

[0042] (2) The base pumice stone (50%), strontium-rhombic ore (50%) mass ratio powder is mixed and stirred for 8 hours by a vibrating stirrer, and then taken out and put into a stirrer. 0.5 times the volume of polyurethane foaming agent, 0.3 times the volume of rosin alcohol, and 0.5 times the volume of paraffin are added and stirred for 4 hours. The strontium-zinc mixed body is prepared. According to the requirements, the required shape is pressed on the press. The product is dried in a drying oven at 80°C for 90 minutes, and then put into a sintering furnace for heat oxidation treatment at 970°C for 6 hours, and then cooled to room temperature to form a semi-ceramic product.

[0043] Preparation Example 3 The preparation method of the strontium-zinc dissolving material comprises the following steps: (1) The base pumice stone and strontium-rhombic ore are placed in a 4% oxalic acid solution and boiled at 90°C for 2 hours. After being washed with water, they are soaked in pure water for more than 10 hours, dehydrated, and then dried. They are crushed to 150 mesh.

[0044] (2) The base pumice stone (40%), strontium-rhombic ore (60%) mass ratio powder is mixed and stirred for 8 hours by a vibrating stirrer, and then taken out and put into a stirrer. 0.5 times the volume of polyurethane foaming agent, 0.2 times the volume of rosin alcohol, and 0.4 times the volume of paraffin are added and stirred for 4 hours. The strontium-zinc mixed body is prepared. According to the requirements, the required shape is pressed on the press. The product is dried in a drying oven at 45°C for 90 minutes, and then cooled to room temperature. A food-grade high-temperature-resistant ceramic glue is quickly brushed on the surface of the shaped product blank with a brush. The high-temperature-resistant ceramic glue is used to improve the mechanical strength of the shaped trace element dissolving material. The high-temperature-resistant ceramic glue used in this embodiment is Feitegu brand. The using temperature of the ceramic glue is 60°C-200°C, and it is placed for more than 24 hours. Then, the product is put into an oven and treated at 90°C for 8 hours, and then cooled to room temperature.

[0045] Preparation Example 4 The preparation method of the strontium-zinc dissolving material comprises the following steps: (1) The base pumice stone and strontium-rhombic ore are placed in a 3% oxalic acid solution and boiled at 85°C for 2 hours. After being washed with water, they are soaked in pure water for more than 10 hours, dehydrated, and then dried. They are crushed to 150 mesh.

[0046] (2) The base of the blue stone (30%), strontium ore (70%) mass ratio powder, mixed with a vibrating mixer for 8 hours, take out and put into the blender, add polyurethane foaming agent 0.5 times the volume of powder, 0.1 times of rosin alcohol, and then add 0.5 times of paraffin wax and stir for 4 hours. Configure the strontium zinc mixture, and press into the required shape on the press according to the demand. Dry in the drying oven at 45℃ for 90 minutes, cool to room temperature, then dip the food-grade high-temperature resistant ceramic glue with a brush and quickly brush it on the surface of the shaped product blank. The high-temperature resistant ceramic glue used in this example is Feitegu brand, which has a use temperature of 60℃-200℃ and is placed for more than 24 hours. Then put it into the oven and treat it at 70℃ for 8 hours, and then cool to room temperature.

[0047] Preparation Example 5 The preparation method of the selenium dissolving material includes the following steps: (1) The selenium ore is soaked with pure water and ultrasonically cleaned twice, then dehydrated and dried; and crushed to 50 mesh. The selenium ore powder is soaked with 0.2% NaOH aqueous solution for 4 hours, and then ultrasonically cleaned with pure water twice, dehydrated and dried.

[0048] (2) The selenium ore powder and activated carbon powder are put into a blender according to a mass ratio of 1:1, and then foaming agent 0.5 times the volume of powder, 0.1 times of rosin alcohol, and 0.2 times of paraffin wax are added and stirred for 1 hour. Press into the required shape on the press. Dry in the drying oven at 230℃ for 2 hours. Naturally cool to room temperature.

[0049] Preparation Example 6 The preparation method of the selenium dissolving material includes the following steps: (1) The selenium ore is soaked with pure water and ultrasonically cleaned twice, then dehydrated and dried; and crushed to 50 mesh. The selenium ore powder is soaked with 0.8% NaOH aqueous solution for 4 hours, and then ultrasonically cleaned with pure water twice, dehydrated and dried.

[0050] (2) The selenium ore powder and activated carbon powder are put into a blender according to a mass ratio of 1:1, and then polyurethane foaming agent 0.5 times the volume of powder, 0.3 times of rosin alcohol, and 0.5 times of paraffin wax are added and stirred for 1 hour. Press into the required shape on the press. Dry in the drying oven at 270℃ for 2 hours. Naturally cool to room temperature.

[0051] Preparation Example 7 The preparation method of the selenium dissolving material includes the following steps: (1) The selenium ore is soaked with pure water and ultrasonically cleaned twice, then dehydrated and dried; and crushed to 50 mesh. The selenium ore powder is soaked with 0.5% NaOH aqueous solution for 4 hours, and then ultrasonically cleaned with pure water twice, dehydrated and dried.

[0052] (2) Put selenium stone powder and activated carbon powder into a blender in a mass ratio of 1 to 1, add 0.5 times the volume of polyurethane foaming agent, 0.2 times the volume of rosin alcohol, and 0.4 times the volume of paraffin, and stir for 1 hour. Press into the desired shape on a press. Dry in a drying oven at 45°C for 90 minutes, cool to room temperature, then quickly brush food-grade high-temperature-resistant ceramic glue on the surface of the shaped product blank with a brush dipped in the glue. The high-temperature-resistant ceramic glue used in this example is Feitegu brand, which has a use temperature of 60-200°C and is placed for 24 hours or more. Then put it into an oven and treat it at 70°C for 8 hours, then cool to room temperature.

[0053] Preparation Example 8 The method for preparing the selenium dissolving material comprises the following steps: (1) Soak selenium stone in pure water and clean it with ultrasonic waves twice, then dry it after dehydration and grind it to 50 mesh. Soak the selenium stone powder in 0.6% NaOH solution for 4 hours, clean it with ultrasonic waves twice, then dry it after dehydration.

[0054] (2) Put selenium stone powder and activated carbon powder into a blender in a mass ratio of 1 to 1, add 0.5 times the volume of polyurethane foaming agent, 0.1 times the volume of rosin alcohol, and 0.5 times the volume of paraffin, and stir for 1 hour. Press into the desired shape on a press. Dry in a drying oven at 45°C for 90 minutes, cool to room temperature, then quickly brush food-grade high-temperature-resistant ceramic glue on the surface of the shaped product blank with a brush dipped in the glue. The high-temperature-resistant ceramic glue used in this example is Feitegu brand, which has a use temperature of 60-200°C and is placed for 24 hours or more. Then put it into an oven and treat it at 100°C for 8 hours, then cool to room temperature.

[0055] Example 1 As Figure 1The first tubular metal oxide platinum-coated electrode 2 (diameter 80 mm, length 180 mm, wall thickness 1 mm) and the second tubular metal oxide platinum-coated electrode 3 (diameter 25 mm, length 180 mm, wall thickness 1 mm) purchased from Beijing Xiangcheng Yida Machinery and Electronics Technology Co., Ltd. are respectively led out of the conductive column. The tubular selenium dissolving material 4 (diameter 75 mm, length 180 mm, wall thickness 10 mm) prepared in Example 5 and the tubular strontium-zinc dissolving material 5 (diameter 50 mm, length 180 mm, wall thickness 10 mm) prepared in Example 1 are placed between the two metal oxide platinum-coated electrodes, and the entire structure is placed in a 10-inch water dispenser empty filter membrane shell 1, and a direct current power supply 6 is connected to the two metal oxide platinum-coated electrode leads. On the power supply 6, 7 is the voltage, and 8 is the current. The DC voltage is adjusted to 9 V, and the current is 793 mA. The selenium ion content in the water is measured to be 35 ug / L, the strontium ion content is 420 ug / Lg, and the zinc ion content is 630 ug / L, which meets the national "GB8537-2018 Food Safety National Standard Drinking Natural Mineral Water" standard.

[0056] Example 2 The electrodes in Example 1 are replaced with tubular electrodes coated with ruthenium-iridium metal oxide purchased from Beijing Xiangcheng Yida Machinery and Electronics Technology Co., Ltd. (diameter 80 mm, length 180 mm, wall thickness 1 mm). The conductive column is led out respectively. The selenium trace element dissolving material (diameter 75 mm, length 180 mm, wall thickness 10 mm) and the strontium-zinc trace element dissolving material (diameter 50 mm, length 180 mm, wall thickness 10 mm) are placed between the metal oxide platinum-coated electrodes and placed in a 10-inch water dispenser empty filter membrane shell. A direct current is connected to the two metal oxide platinum-coated electrode leads. The DC voltage is adjusted to 14 V, and the current is 1.7 A. The selenium ion content in the water is measured to be 12 ug / L, the strontium ion content is 300 ug / L, and the zinc ion content is 840 ug / L, which meets the national "GB8537-2018 Food Safety National Standard Drinking Natural Mineral Water" standard.

[0057] As can be seen from the above examples, through the above electrolysis process, trace elements can be introduced into water in ionic form, and by changing the electrolysis parameters, the content of trace elements introduced into water can be controlled to meet the requirements.

[0058] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, these modifications and variations are also intended to be included.

Claims

1. A method of adding trace elements to water, characterized in that, The method comprises the following steps: The strontium-zinc dissolving material and / or the selenium dissolving material are prepared, and the strontium-zinc dissolving material and / or the selenium dissolving material is arranged between the conductive electrodes as an intermediate conductive layer, and the elements in the dissolving material are made into ion state in water through electrolysis; The preparation method of the strontium-zinc dissolving material comprises the following steps: The dolomite and strontium spar are pretreated, and then a mixture is prepared by taking the pretreated dolomite powder, the pretreated strontium spar powder, a foaming agent, a cembrene and a volatile agent paraffin wax as raw materials, the mixture is pressed into a required shape to obtain a strontium-zinc mixture, and the strontium-zinc mixture is subjected to a strengthening treatment to obtain the strontium-zinc dissolving material. The preparation method of the selenium dissolving material comprises the following steps: The selenium ore is pretreated, and then a mixture is prepared by taking the pretreated selenium ore powder, activated carbon powder, a foaming agent, a cembrene and a volatile agent paraffin wax as raw materials, the mixture is pressed into a required shape to obtain a selenium mixture, and the selenium mixture is subjected to a strengthening treatment to obtain the selenium dissolving material.

2. The method of claim 1, wherein, In the total amount of the dolomite powder and the strontium spar powder, the mass percentage of the dolomite powder is 20% to 50%, and the rest is the strontium spar powder, and the total is 100%; in the strontium-zinc mixture, the foaming agent is added in an amount of 0.5 times the total volume of the dolomite powder and the strontium spar powder, the cembrene is added in an amount of 0.1 to 0.3 times the total volume of the dolomite powder and the strontium spar powder, and the paraffin wax is added in an amount of 0.2 to 0.5 times the total volume of the dolomite powder and the strontium spar powder.

3. The method of claim 1, wherein, In the preparation of the strontium-zinc dissolving material, the strengthening treatment refers to a thermal oxidation treatment of the dried strontium-zinc mixture, and the thermal oxidation treatment is performed at a temperature of 650 DEG C to 970 DEG C for 6 hours; or the strengthening treatment refers to coating the surface of the strontium-zinc mixture with food-grade ceramic glue and then drying and solidifying.

4. The method of claim 1, wherein, In the preparation of the selenium dissolving material, the mass ratio of the selenium ore powder and the activated carbon powder is 1:1, the foaming agent is added in an amount of 0.5 times the total volume of the selenium ore powder and the activated carbon powder, the cembrene is added in an amount of 0.1 to 0.3 times the total volume of the selenium ore powder and the activated carbon powder, and the paraffin wax is added in an amount of 0.2 to 0.5 times the total volume of the selenium ore powder and the activated carbon powder.

5. The method of claim 1, wherein, In the preparation of the selenium dissolving material, the strengthening treatment refers to a thermal oxidation treatment of the dried selenium mixture, and the thermal oxidation treatment is performed at a temperature of 230 DEG C to 270 DEG C for 2 hours; or the strengthening treatment refers to coating the surface of the selenium mixture with food-grade ceramic glue and then drying and solidifying.

6. The method of claim 1, wherein, The shapes of the strontium-zinc dissolving material, the selenium dissolving material and the conductive electrodes are respectively circular, plate-shaped or tubular; the surface of the conductive electrode is provided with an oxide coating containing Se, Sr and Zn elements, and a direct current is used, the voltage is 9V to 14V, and the current is 0.5A to 2A.

7. A method for producing a strontium-zinc dissolving material, characterized by, The method comprises the following steps: The dolomite and strontium spar are pretreated, and then a mixture is prepared by taking the pretreated dolomite powder, the pretreated strontium spar powder, a foaming agent, a cembrene and a volatile agent paraffin wax as raw materials, the mixture is pressed into a required shape to obtain a strontium-zinc mixture, and the strontium-zinc mixture is subjected to a strengthening treatment to obtain the strontium-zinc dissolving material.

8. A method of producing a selenium dissolving material, characterized by, The method comprises the following steps: The selenite is pretreated, and a mixture is prepared by using selenite powder, activated carbon powder, a foaming agent, rosin alcohol and paraffin as raw materials, the mixture is pressed into a required shape to obtain a selenite mixture, and the selenite mixture is dry strengthened to obtain a selenite dissolving material.

9. A strontium zincate dissolving material characterized by, The selenite dissolving material is prepared by using the preparation method in claim 7.

10. A selenium dissolving material, characterized by, The selenite dissolving material is prepared by using the preparation method in claim 8.

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