Method for preparing populus euphratica water from populus euphratica alkali and application of populus euphratica water

Abstract

The invention provides a method for preparing populus euphratica water by taking populus euphratica alkali as a raw material and application of the populus euphratica water, and belongs to the technical field of soda water beverages. The populus euphratica alkali powder, CO2 and water are used as raw materials, and the populus euphratica water is prepared through a normal pressure method or a medium pressure method. The normal pressure method comprises the following steps: enabling populus diversifolia alkali powder, CO2 and water to react through a two-section fixed bed device to obtain reduced powder, adding water into the reduced powder, dissolving, and removing insoluble substances to obtain populus diversifolia water; the medium pressure method comprises the following steps: placing populus diversifolia alkali powder, water and CO2 in a reaction kettle for reaction, diluting, and removing insoluble substances to obtain populus diversifolia water. According to the method, the component of the populus diversifolia alkali can be reduced into the component of the populus diversifolia water and is close to the component of the natural populus diversifolia water. The invention further provides the populus euphratica soda water prepared from the populus euphratica water, and a new thought is provided for the field of soda water preparation.

Description

Technical Field

[0001] The invention belongs to the technical field of soda water beverages, and specifically relates to a method for preparing poplar water by taking poplar alkali as a raw material and application thereof. Background Art

[0002] Populus euphratica is a tall tree that is resistant to salt, drought and wind and sand. In order to adapt to the dry desert environment, it has formed a special root system, which continuously absorbs water and nutrients from groundwater and stores excess water in the trunk. When there is too much salt in the body of Populus euphratica, it is discharged through the cracks in the trunk. Therefore, Populus euphratica has two secretions. One is Populus euphratica water, which refers to the sap flowing out of the damaged part of the Populus euphratica trunk, which is a clear liquid; the other is Populus euphratica alkali, also known as Populus euphratica tears, which refers to the Populus euphratica water flowing out of the trunk and forming white or light yellow crystals after being exposed to wind and sun. Populus euphratica water is mainly composed of sodium bicarbonate, potassium chloride, a very small amount of sodium carbonate, various trace elements and organic matter, and the pH is about 7.9 to 8.5; while Populus euphratica is mainly composed of sodium sesquicarbonate (Na2CO3·NaHCO3·2H2O), and the pH is about 9.8 to 10.3. At the same time, there are some impurities in Populus euphratica, such as SiO2 and branches. Poplar water has high edible and medicinal value and is deeply loved by people, but obtaining poplar water requires cutting a hole in the trunk of the poplar tree to let it flow out, which will cause certain damage to the poplar tree. Therefore, how to prepare poplar water with ingredients closer to pure natural is a key problem to be solved in this field. Summary of the invention

[0003] In order to solve the problems existing in the prior art, the purpose of the present invention is to provide a method for preparing poplar water, which uses poplar alkali as a raw material to prepare poplar water with a composition close to that of pure natural poplar.

[0004] The present invention also aims to provide the use of the above-mentioned poplar water in the preparation of poplar soda water.

[0005] The present invention also aims to provide a poplar soda water, which contains a variety of mineral elements and organic matter and is rich in sodium bicarbonate and potassium chloride.

[0006] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:

[0007] The invention provides a method for preparing poplar water. The poplar water is prepared by using poplar alkali powder, CO2 and water as raw materials through a normal pressure method or a medium pressure method. The normal pressure method comprises the following steps: the poplar alkali powder, CO2 and water are reacted through a two-stage fixed bed device to obtain a reduction powder, the reduction powder is added with water, dissolved, and insoluble matter is removed to obtain the poplar water; the medium pressure method comprises the following steps: the poplar alkali powder, water and CO2 are placed in a reactor for reaction, diluted, and insoluble matter is removed to obtain the poplar water.

[0008] Preferably, the atmospheric pressure method includes a two-step process: water is introduced into the first fixed-bed device, and the poplar alkali powder is placed in the second fixed-bed device; the water is heated in the first fixed-bed device to obtain water vapor; using CO2 as the carrier gas, the water vapor is carried into the second fixed-bed device together to react with the poplar alkali powder.

[0009] Preferably, the heating temperature of the first stage of the two-stage fixed-bed device is 120 - 180 °C, the heating time is 1 - 4 h, the reaction temperature of the second stage is 30 - 80 °C, and the reaction time is 1 - 4 h.

[0010] Preferably, the flow rate of water through the first fixed-bed device is 0.05 - 0.3 mL / min; the flow rate of CO2 entering the second fixed-bed device is 50 - 300 mL / min; the mass ratio of poplar alkali to CO2 is 1:(1 - 20).

[0011] Preferably, in the atmospheric pressure method, the mass ratio of the reducing powder to water is 1:(10 - 20).

[0012] Preferably, in the medium pressure method, the pressure is 1 - 5 MPa; the mass ratio of poplar alkali powder to water is 1:(1.5 - 5); the reaction temperature is 30 - 80 °C, the reaction time is 1 - 4 h; the rotation speed of the reaction kettle is 200 - 1000 rpm; the dilution is to add 2 - 13 times the mass of water to the stock solution obtained after the reaction for dilution.

[0013] The present invention also provides the poplar water prepared by the above method.

[0014] The present invention also provides the application of the above method or the above poplar water in the preparation of poplar soda water.

[0015] The present invention also provides a kind of poplar soda water, and by volume, the poplar soda water contains 2 - 24‰ of the above poplar water.

[0016] Preferably, the poplar soda water also contains acesulfame potassium and edible essence.

[0017] Compared with the prior art, the beneficial effects of the technical solution of the present invention are as follows:

[0018] The present invention provides a method for preparing poplar water. The method is pollution-free and has simple process steps. It can reduce sesquicarbonate in poplar alkali to sodium bicarbonate, remove SiO2. The prepared poplar water has high contents of sodium bicarbonate and potassium chloride, and is rich in various elements such as Ca, Mg, Fe, etc. Its composition is closer to natural poplar water and has similar edible and medicinal values to poplar water.

[0019] The present invention provides the application of the prepared poplar water in the preparation of soda water. Using the prepared poplar water as a raw material, soda water containing various mineral elements and organic substances, rich in sodium bicarbonate and potassium chloride can be prepared. The soda water prepared by the present invention not only quenches thirst, but also has the effects of balancing the body's pH, relieving dyspepsia and constipation, beautifying and nourishing the skin, and helps the excretion of uric acid to prevent and treat hyperuricemia or gout. The soda water prepared by the present invention effectively improves the problems of single taste and lack of nutrition of soda water, can supplement the nutrients needed by the human body, and conforms to the consumption trend. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 : Schematic diagram of the reaction of the two-stage fixed-bed device in the atmospheric pressure method;

[0021] Figure 2 : XRD spectrum detection results of eburcol, the prepared poplar water, and natural poplar water. DETAILED DESCRIPTION OF THE INVENTION

[0022] The present invention provides a method for preparing poplar water, using eburcol powder, CO2 and water as raw materials, and preparing poplar water by the atmospheric pressure method or the medium pressure method; the atmospheric pressure method includes the following steps: eburcol powder, CO2 and water react through a two-stage fixed-bed device to obtain a reduced powder, the reduced powder is added with water, dissolved, and insoluble substances are removed to obtain poplar water; the medium pressure method includes the following steps: eburcol powder, water and CO2 are placed in a reaction kettle for reaction, diluted, and insoluble substances are removed to obtain poplar water.

[0023] The eburcol powder in the present invention is a powder obtained by removing impurities such as branches, sand, and dust from the eburcol raw material, and then pulverizing and grinding it. The particle size of the eburcol powder in the present invention is 48-75 μm, preferably 50-60 μm. The present invention uses eburcol powder, CO2 gas and distilled water as reaction raw materials, reduces the components of eburcol to the components in the original secretion of eburcol tears, obtains the removal of sesquicarbonate and SiO2, while having a high content of sodium bicarbonate and potassium chloride, and is also rich in various elements such as Ca, Mg, and Fe, and its components are closer to natural poplar water.

[0024] In the atmospheric pressure method of the present invention, the two-stage fixed-bed device is assembled and built, and its various components can be obtained by conventional purchase. The reaction schematic diagram is as Figure 1As shown in the figure, 1 in the figure is a carbon dioxide cylinder, 2 is an accurately metering plunger pump, 3 is a gas flowmeter, 4 is a two-stage fixed bed device, and 5 is the placement location of the populus euphratica alkali raw material. The two-step process of the present invention includes: water is introduced into the first-stage fixed bed device, and populus euphratica alkali powder is placed in the second-stage fixed bed device; the water is heated through the first-stage fixed bed device to obtain water vapor; using CO2 as a carrier gas, the water vapor is carried together into the second-stage fixed bed device to react with the populus euphratica alkali powder. In the present invention, the inlet of the distilled water is in the first-stage fixed bed device. As soon as the water comes out, it is in the heated first-stage fixed bed device and is directly vaporized to obtain water vapor. This process is preferably to continuously introduce CO2. In the present invention, in the second-stage reaction, using CO2 as a carrier gas, the water vapor is carried to the second-stage fixed bed device together, and the two react with the populus euphratica alkali powder together. This process is preferably to continuously have CO2 and water vapor. The two-stage fixed bed device described in the present invention can be selected as an integral device, and in this device, the two-step process can be carried out simultaneously.

[0025] Preferably, the heating temperature of the first stage of the two-stage fixed bed device is 120 - 180 °C, more preferably 125 °C, 130 °C, 135 °C, 140 °C, 145 °C, 150 °C, 155 °C, 160 °C, 165 °C, 170 °C or 175 °C; the reaction temperature of the second stage is 30 - 80 °C, more preferably 35 °C, 40 °C, 45 °C, 50 °C, 55 °C, 60 °C, 65 °C, 70 °C or 75 °C; in the present invention, the time for the first-stage heating and the second-stage reaction is both 1 - 4 h, more preferably 1.5 h, 2 h, 2.5 h, 3 h or 3.5 h.

[0026] In the present invention, the flow rate of the water through the first-stage fixed bed device is 0.05 - 0.3 mL / min, more preferably 0.1 mL / min, 0.15 mL / min, 0.2 mL / min or 0.25 mL / min; the flow rate of the CO2 entering the second-stage fixed bed device is 50 - 300 mL / min, more preferably 100 mL / min, 150 mL / min, 200 mL / min or 250 mL / min; the mass ratio of the populus euphratica alkali to CO2 is 1:(1 - 20), more preferably 1:3, 1:5, 1:7, 1:9, 1:11, 1:13, 1:15, 1:17 or 1:19.

[0027] The present invention obtains a reduced powder with a high content of sodium bicarbonate through a two-stage fixed-bed device, and prepares poplar water from the reduced powder. The mass ratio of the reduced powder to water is 1:(10-20), preferably 1:11, 1:12, 1:13, 1:14, 1:15, 1:16, 1:17, 1:18 or 1:19. After adding water to the reduced powder of the present invention, the dissolution is preferably carried out by ultrasonic or stirring dissolution. The ultrasonic conditions are preferably 10-30 °C; 5-60 min; 80-100 kHz, and the stirring speed is preferably 300-1000 r / min. The present invention preferably removes insoluble substances by centrifugation or suction filtration to obtain poplar water. The centrifugation conditions are preferably 3000-8000 r / min, and the suction filtration conditions are preferably a negative pressure of 0.02-0.1 MPa.

[0028] In the medium-pressure method of the present invention, the reaction kettle can be a device obtained by conventional purchase. The pressure in the present invention is 1-5 MPa, preferably 2 MPa, 3 MPa or 4 MPa; the mass ratio of poplar alkali powder to water is 1:(1.5-5), preferably 1:2, 1:2.5, 1:3, 1:3.5, 1:4 or 1:4.5; the reaction temperature is 30-80 °C, more preferably 35 °C, 40 °C, 45 °C, 50 °C, 55 °C, 60 °C, 65 °C, 70 °C or 75 °C; the reaction time is 1-4 h, more preferably 1.5 h, 2 h, 2.5 h, 3 h or 3.5 h; the rotation speed of the reaction kettle is 200-1000 rpm, more preferably 300 rpm, 400 rpm, 500 rpm, 600 rpm, 700 rpm, 800 rpm or 900 rpm; the dilution is preferably to add 2-13 times the mass of water to the reaction stock solution obtained after the reaction, preferably add 3-12, 5-10, 6-11 or 8-9 times the mass of water for dilution; the water is preferably pure water.

[0029] The present invention also provides the poplar water prepared by the above method. The obtained poplar water is the same as natural poplar water. Its carbonate is sodium bicarbonate and does not contain SiO2. Its spectrum is very close to that of natural poplar water, and its composition is closer to pure natural poplar water.

[0030] The present invention also provides the application of the above method or the above poplar water in the preparation of poplar soda water.

[0031] The present invention also provides a Populus euphratica soda water. By volume, the Populus euphratica soda water includes 2 to 24‰ of the above-mentioned Populus euphratica water, more preferably 10 to 20‰, 12 to 22‰, 8 to 18‰ or 5 to 15‰. Preferably, the Populus euphratica soda water further includes acesulfame potassium and edible essence, and more preferably, by volume, it includes 2 to 24‰ of the above-mentioned Populus euphratica water, 0.02 to 0.26‰ of acesulfame potassium and 0.05 to 1.1‰ of edible essence; the edible essence described in the present invention includes but is not limited to lemon essence, peach essence, etc.

[0032] The Populus euphratica soda water prepared by the present invention contains rich trace elements, organic substances, nutrients, etc. The content of NaHCO3 is 340 to 820 mg / L, the content of KCl is 30 to 210 mg / L, the pH is 7.0 to 9.5, and the color is colorless or slightly yellow.

[0033] Next, the technical solutions in the present invention will be clearly and completely described in conjunction with the embodiments in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0034] In the specific embodiments of the present invention, the gas flowmeter (CO2) is purchased from Qixing Huachuang Flowmeter Co., Ltd.; the precise metering plunger pump (high-pressure constant flow metering pump (H2O)) is purchased from Beijing Zhongxi Huada Technology Co., Ltd.; the two-stage fixed bed device is purchased from the sales office of Keyuan Instruments in Dalian Mechanical and Electrical Hardware Wholesale Market; the temperature control device of the two-stage fixed bed is purchased from Xiamen Yudian Temperature Controller; the reaction kettle is purchased from Shanghai Yanzheng Experimental Instrument Co., Ltd.

[0035] In the following embodiments, unless otherwise specified, all are conventional methods.

[0036] In the following embodiments, the materials, reagents, etc. used, unless otherwise specified, can all be obtained from commercial channels.

[0037] Example 1

[0038] A method for preparing Populus euphratica water comprises the following steps:

[0039] After removing sundries such as branches, sand, and dust from the Populus euphratica alkali raw material, the obtained powder (particle size about 48 μm) after crushing and grinding is taken, and 5 g of the powder is placed in the second-stage fixed bed device; water is heated by the first-stage fixed bed device to obtain water vapor; using CO2 as the carrier gas, the water vapor generated by the first-stage fixed bed device is carried into the second-stage fixed bed device together to react with the Populus euphratica alkali powder to obtain the reduced powder. The two-stage fixed bed device (such as Figure 1) In it, the heating temperature of the first fixed-bed device is 120 °C, and the flow rate of water is 0.05 mL / min; the reaction temperature of the second fixed-bed device is 30 °C, and the flow rate of CO2 is 50 mL / min (Populus euphratica alkaloid:CO2 = 1:4.71); the heating and reaction times are both 4 h.

[0040] The reduction powder and water are mixed at a mass ratio of 1:10, dissolved by ultrasonic waves (ultrasonic conditions: 20 °C; 30 min; 80 kHz), and the insoluble substances are removed by centrifugation (centrifugation conditions: 5000 r / min) to obtain Populus euphratica water.

[0041] Example 2

[0042] A method for preparing Populus euphratica water, the steps are as follows:

[0043] After removing impurities such as branches, sand, and dust from the Populus euphratica alkaloid raw material, the obtained powder (particle size is about 48 μm) after crushing and grinding is taken, and 30 g of the powder is placed in the second fixed-bed device; water is heated by the first fixed-bed device to obtain water vapor; with CO2 as the carrier gas, the water vapor generated by the first fixed-bed device is carried into the second fixed-bed device together to react with the Populus euphratica alkaloid powder to obtain the reduction powder. The two-stage fixed-bed device (such as Figure 1 ) In it, the heating temperature of the first fixed-bed device is 180 °C, and the flow rate of water is 0.3 mL / min; the reaction temperature of the second fixed-bed device is 80 °C, and the flow rate of CO2 is 300 mL / min (Populus euphratica alkaloid:CO2 = 1:1.17); the heating and reaction times are both 1 h.

[0044] The reduction powder and water are mixed at a mass ratio of 1:20, dissolved by stirring (stirring speed is 500 r / min), and the insoluble substances are removed by centrifugation (centrifugation conditions: 4000 r / min) to obtain Populus euphratica water.

[0045] Example 3

[0046] A method for preparing Populus euphratica water, the steps are as follows:

[0047] After removing impurities such as branches, sand, and dust from the Populus euphratica alkaloid raw material, the obtained powder (particle size is about 48 μm) after crushing and grinding is taken, and 15 g of the powder is placed in the second fixed-bed device; water is heated by the first fixed-bed device to obtain water vapor; with CO2 as the carrier gas, the water vapor generated by the first fixed-bed device is carried into the second fixed-bed device together to react with the Populus euphratica alkaloid powder to obtain the reduction powder. The two-stage fixed-bed device (such as Figure 1) In it, the heating temperature of the first fixed-bed device is 140 °C, and the flow rate of water is 0.20 mL / min; the reaction temperature of the second fixed-bed device is 60 °C, and the flow rate of CO2 is 200 mL / min (populin:CO2 = 1:4.71); the heating and reaction times are both 3 h.

[0048] The reducing powder and water are mixed in a mass ratio of 1:14, dissolved by ultrasonic waves (ultrasonic conditions: 20 °C; 30 min; 100 kHz), and the insoluble substances are removed by suction filtration (suction filtration conditions: negative pressure 0.06 MPa) to obtain poplar water.

[0049] Example 4

[0050] A method for preparing poplar water, the steps are as follows:

[0051] After removing impurities such as branches, sand, and dust from the populin raw material, the obtained powder (particle size is about 48 μm) after crushing and grinding is taken, and 25 g of the powder is placed in the second fixed-bed device; water is heated by the first fixed-bed device to obtain water vapor; using CO2 as the carrier gas, the water vapor generated by the first fixed-bed device is carried into the second fixed-bed device together to react with the populin powder to obtain the reducing powder. In the two-stage fixed-bed device (such as Figure 1 ) In it, the heating temperature of the first fixed-bed device is 160 °C, and the flow rate of water is 0.25 mL / min; the reaction temperature of the second fixed-bed device is 40 °C, and the flow rate of CO2 is 285 mL / min (populin:CO2 = 1:5.37); the heating and reaction times are both 4 h.

[0052] The reducing powder and water are mixed in a mass ratio of 1:16, dissolved by stirring (stirring speed is 600 r / min), and the insoluble substances are removed by suction filtration (suction filtration conditions: negative pressure 0.06 MPa) to obtain poplar water.

[0053] Example 5

[0054] A method for preparing poplar water, the steps are as follows:

[0055] After removing impurities such as branches, sand, and dust from the populin raw material, the obtained powder (particle size is about 48 μm) after crushing and grinding, the populin powder and water are mixed in a mass ratio of 1:1.5 and placed in a reaction kettle, and CO2 is introduced for reaction. 12 times the mass of water is added to the reaction stock solution after the reaction to dilute it, and the insoluble substances are removed to obtain poplar water. The pressure is 1 MPa, the reaction temperature is 30 °C, the reaction time is 4 h, and the rotation speed of the reaction kettle is 200 rpm.

[0056] Example 6

[0057] A method for preparing poplar water, the steps are as follows:

[0058] After removing impurities such as branches, sand, and dust from the raw material of poplar alkali, the powder obtained by crushing and grinding it (particle size is about 48μm), the poplar alkali powder and water are mixed at a mass ratio of 1:5 and placed in a reaction kettle, and CO2 is introduced for reaction. Add water with a mass 5 times that of the reaction stock solution after the reaction ends to dilute it, remove the insoluble substances, and obtain poplar water. The pressure is 5MPa, the reaction temperature is 80°C, the reaction time is 1h, and the rotation speed of the reaction kettle is 1000rpm.

[0059] Example 7

[0060] A method for preparing poplar water, the steps are as follows:

[0061] After removing impurities such as branches, sand, and dust from the raw material of poplar alkali, the powder obtained by crushing and grinding it (particle size is about 48μm), the poplar alkali powder and water are mixed at a mass ratio of 1:4 and placed in a reaction kettle, and CO2 is introduced for reaction. Add water with a mass 6 times that of the reaction stock solution after the reaction ends to dilute it, remove the insoluble substances, and obtain poplar water. The pressure is 3MPa, the reaction temperature is 60°C, the reaction time is 2h, and the rotation speed of the reaction kettle is 700rpm.

[0062] Example 8

[0063] A method for preparing poplar water, the steps are as follows:

[0064] After removing impurities such as branches, sand, and dust from the raw material of poplar alkali, the powder obtained by crushing and grinding it (particle size is about 48μm), the poplar alkali powder and water are mixed at a mass ratio of 1:2 and placed in a reaction kettle, and CO2 is introduced for reaction. Add water with a mass 10 times that of the reaction stock solution after the reaction ends to dilute it, remove the insoluble substances, and obtain poplar water. The pressure is 2MPa, the reaction temperature is 40°C, the reaction time is 3h, and the rotation speed of the reaction kettle is 300rpm.

[0065] Example 9

[0066] A kind of original flavor poplar soda water, the preparation method is:

[0067] Take 5L of the poplar water prepared in Example 4, add water to 300L, mix and stir evenly, place it at a temperature of 100°C for sterilization treatment for 1min, and then carry out aseptic filling to obtain the original flavor poplar soda water (pH is 8.8).

[0068] Example 10

[0069] A kind of original flavor poplar soda water, the preparation method is:

[0070] Take 5 L of the poplar water prepared in Example 8, add water to make 300 L, mix and stir evenly, sterilize at 90 °C for 2 min, and then perform aseptic filling to obtain original flavor poplar soda water (pH 8.8).

[0071] Example 11

[0072] A kind of peach - flavored poplar soda water, the preparation method is as follows:

[0073] Take 5 L of the poplar water prepared in Example 4, add 10 g of acesulfame potassium and 30 g of peach - flavored edible essence, add water to make 300 L, mix and stir evenly, sterilize at 100 °C for 1 min, and then perform aseptic filling to obtain peach - flavored poplar soda water (pH 8.7).

[0074] Example 12

[0075] A kind of peach - flavored poplar soda water, the preparation method is as follows:

[0076] Take 5 L of the poplar water prepared in Example 8, add 10 g of acesulfame potassium and 30 g of peach - flavored edible essence, add water to make 300 L, mix and stir evenly, sterilize at 100 °C for 1 min, and then perform aseptic filling to obtain peach - flavored poplar soda water (pH 8.7).

[0077] Test Example

[0078] 1. Perform XRD spectrum detection on the components of poplarine, the poplar water prepared in Example 4, and natural poplar water:

[0079] The preparation method of the test sample of poplarine: After removing impurities such as branches, sand, and dust in the poplarine raw material, the obtained powder after crushing and grinding has a particle size of about 48 μm and is directly measured.

[0080] The preparation method of the samples of the prepared poplar water and natural poplar water: After freeze - drying the prepared poplar water and natural poplar water, solid powder is obtained, ground to a particle size of about 48 μm, and then measured.

[0081] The detection conditions are as follows: Use a Bruker D8 Advance XRD in Germany for sample testing. The experimental testing conditions are Cu - target Kɑ radiation, step size of 0.02°, test range of 10 - 80°, working voltage of 40 mV, and working current of 40 mA.

[0082] The detection results are as Figure 2As shown in the figure, in the figure, (1) is the XRD pattern of the poplar alkali sampled at Yingsu (40°64'11"N - 87°69'28"E); (2) is the XRD pattern of the poplar alkali sampled at Yingsu (40°64'11"N - 87°69'28"E); (3) is the XRD pattern of the poplar alkali sampled at Yingsu (40°11'34"N - 88°37'55"E); (4) is the comparison of the XRD patterns of the poplar alkali raw material (before reduction of poplar alkali), the prepared poplar water (after reduction of poplar alkali), and natural poplar water (poplar water) in Example 4; (5) is the XRD pattern of the powder obtained after freeze-drying natural poplar water; (6) is the XRD pattern of the powder obtained after freeze-drying the poplar water prepared in Example 4. The XRD patterns prove that the carbonates in poplar alkali are mainly sesquicarbonate of soda and all contain SiO2, but there are also substances such as calcium carbonate, potassium bicarbonate, and sodium carbonate monohydrate in the poplar alkali from different sampling sites. It shows that the composition of poplar alkali is complex and quite different from that of poplar water. The carbonates of the prepared poplar water are sodium bicarbonate and do not contain SiO2, and its pattern is very close to that of poplar water. It shows that the reduction treatment process provided by the present invention can not only remove impurities such as SiO2 that do not exist in poplar water, but also successfully reduce the components in poplar alkali to the components of poplar water, and the composition is close to that of natural poplar water.

[0083] 2. Taking 30 g of poplar alkali as an example, the poplar water was prepared by the method of Example 4 (keeping the ratio of poplar alkali, water, and CO2 in Example 4 unchanged, correspondingly adjusting the flow rates of water and CO2, and keeping the other parameter conditions unchanged). The contents of sodium carbonate and sodium bicarbonate in the poplar alkali sample before reduction and the powder after reduction were measured by a potentiometric titrator. The results are shown in Table 1.

[0084] Table 1 Contents of sesquicarbonate of soda component, sodium carbonate, and sodium bicarbonate in the poplar alkali sample before and after reduction by the atmospheric pressure method

[0085]

[0086] The results show that the method provided by the present invention can well reduce the component of sesquicarbonate of soda, reduce the proportion of sodium carbonate, and increase the proportion of sodium bicarbonate, and can provide the required sodium bicarbonate for the preparation of poplar soda water.

[0087] 3. Using the method of Example 4, prepare poplar water with different amounts (4 g, 20 g, 30 g) of euphorbine samples (while keeping the ratio of euphorbine, water, and CO2 in Example 4 unchanged, correspondingly adjusting the flow rates of water and CO2, and keeping the other parameter conditions unchanged). Measure the contents of sesquicarbonate and sodium carbonate in the samples before and after reduction by a potentiometric titrator, and calculate the conversion rate. The conversion rate = (the content of sodium carbonate in the sesquicarbonate component before reduction - the remaining content of sodium carbonate after reduction) / the content of sodium carbonate in the sesquicarbonate component before reduction. The results are shown in Table 2.

[0088] Table 2 Results of the conversion rate of the sesquicarbonate component in different amounts of euphorbine samples

[0089] Sample weight (g) Reaction time (h) Conversion rate (%) 4 2 87.76 20 3 86.81 30 4 88.61

[0090] The results show that the conversion rates of the sesquicarbonate components in different amounts of euphorbine can all reach over 85%. This indicates that the reduction treatment method for sodium sesquicarbonate in the euphorbine provided by the present invention can meet the requirements of different amounts of euphorbine samples.

[0091] 4. Using the method of Example 4, prepare poplar water with euphorbine samples obtained from different locations (HYJ-1: Sampling location is Alagan; 40°33'51"N - 88°19'66"E; HYJ-2: Sampling location is Yingsu; 40°39'18"N - 87°94'92"E; HYJ-3: Sampling location is Yingsu; 40°64'11"N - 87°69'28"E).

[0092] Measure the contents of sesquicarbonate and sodium carbonate in the samples before and after reduction by a potentiometric titrator, and calculate the conversion rate. The conversion rate = (the content of sodium carbonate in the sesquicarbonate component before reduction - the remaining content of sodium carbonate after reduction) / the content of sodium carbonate in the sesquicarbonate component before reduction. The results are shown in Table 3.

[0093] Table 3 Results of the conversion rate of the sesquicarbonate component in different euphorbine samples

[0094]

[0095] The results show that the conversion rates of the sesquicarbonate components in different euphorbine samples can all reach over 80%, indicating that the treatment method for sodium sesquicarbonate in the euphorbine provided by the present invention can be applicable to different euphorbine samples and has universality.

[0096] 5. The method of Example 4 was used to conduct multiple repeated experiments on saxicoline (20 g, 30 g) (while keeping the ratios of saxicoline, water, and CO2 in Example 4 unchanged, correspondingly adjusting the flow rates of water and CO2, and keeping the other parameter conditions unchanged). The contents of sesquicarbonate component and sodium carbonate in the samples before and after reduction were measured by a potentiometric titrator, and the conversion rate was calculated as follows: conversion rate = (content of sodium carbonate in sesquicarbonate component before reduction - content of remaining sodium carbonate after reduction) / content of sodium carbonate in sesquicarbonate component before reduction. The results are shown in Table 4.

[0097] Table 4 Results of the conversion rate of sesquicarbonate in saxicoline for three repeated experiments

[0098]

[0099]

[0100] The results show that the reduction treatment method of sesquicarbonate in saxicoline provided by the present invention has advantages such as relative stability and good reproducibility.

[0101] 6. Taking 20 g of saxicoline as an example, the method of Example 8 was used to prepare saxicoline water. The contents of sesquicarbonate component, sodium carbonate, and sodium bicarbonate in the samples before and after reduction were measured by a potentiometric titrator. The results are shown in Table 5.

[0102] Table 5 Contents of sesquicarbonate component, sodium carbonate, and sodium bicarbonate in saxicoline samples before and after reduction by medium-pressure method

[0103]

[0104] The results show that this method has a good effect on the reduction treatment of sesquicarbonate in saxicoline and can provide the required sodium bicarbonate for the preparation of saxicoline soda water.

[0105] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A method for preparing poplar water, characterized in that, Taking poplar alkali powder, CO2 and water as raw materials, poplar water is prepared by an atmospheric pressure method or a medium pressure method; the atmospheric pressure method includes the following steps: the poplar alkali powder, CO2 and water react through a two-stage fixed bed device to obtain a reduced powder, and water is added to the reduced powder, dissolved, and insoluble substances are removed to obtain poplar water; the medium pressure method includes the following steps: the poplar alkali powder, water and CO2 are placed in a reaction kettle for reaction, diluted, and insoluble substances are removed to obtain poplar water.

2. The method according to claim 1, wherein The atmospheric pressure method includes a two-step process: water is introduced into the first-stage fixed bed device, and the poplar alkali powder is placed in the second-stage fixed bed device; The water is heated by the first-stage fixed bed device to obtain water vapor; with CO2 as the carrier gas, the water vapor is carried into the second-stage fixed bed device together to react with the poplar alkali powder.

3. The method according to claim 2, wherein The heating temperature of the first stage of the two-stage fixed bed device is 120-180 °C, the heating time is 1-4 h, the reaction temperature of the second stage is 30-80 °C, and the reaction time is 1-4 h.

4. The method according to claim 2, wherein The flow rate of water through the first-stage fixed bed device is 0.05-0.3 mL / min; the flow rate of CO2 entering the second-stage fixed bed device is 50-300 mL / min; the mass ratio of poplar alkali to CO2 is 1:(1-20).

5. The method according to claim 1, wherein In the atmospheric pressure method, the mass ratio of the reduced powder to water is 1:(10-20).

6. The method according to claim 1, wherein In the medium pressure method, the pressure is 1-5 MPa; the mass ratio of poplar alkali powder to water is 1:(1.5-5); the reaction temperature is 30-80 °C, the reaction time is 1-4 h; the rotation speed of the reaction kettle is 200-1000 rpm; the dilution is to add 2-13 times the mass of water to the stock solution obtained after the reaction for dilution.

7. Poplar water prepared by the method according to any one of claims 1-6.

8. Use of the method according to any one of claims 1-6 or the poplar water according to claim 7 in the preparation of poplar soda water.

9. A Populus euphratica soda water, characterized in that, By volume, the poplar soda water includes 2-24‰ of the poplar water according to claim 7.

10. The Populus euphratica soda water according to claim 9, characterized in that, The poplar soda water further includes acesulfame potassium and edible essence.

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