CN116495761A - Synthesis method of high-purity magnesium aluminum hydrotalcite - Google Patents
Synthesis method of high-purity magnesium aluminum hydrotalcite Download PDFInfo
- Publication number
- CN116495761A CN116495761A CN202310763203.5A CN202310763203A CN116495761A CN 116495761 A CN116495761 A CN 116495761A CN 202310763203 A CN202310763203 A CN 202310763203A CN 116495761 A CN116495761 A CN 116495761A
- Authority
- CN
- China
- Prior art keywords
- magnesium
- hydrotalcite
- source
- aluminum
- carbonate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 title claims abstract description 52
- 229960001545 hydrotalcite Drugs 0.000 title claims abstract description 52
- 229910001701 hydrotalcite Inorganic materials 0.000 title claims abstract description 52
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 238000001308 synthesis method Methods 0.000 title description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 22
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims abstract description 13
- 239000001095 magnesium carbonate Substances 0.000 claims abstract description 13
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 13
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims abstract description 12
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims abstract description 12
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 11
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 11
- 239000011777 magnesium Substances 0.000 claims abstract description 11
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 11
- 230000002194 synthesizing effect Effects 0.000 claims abstract description 10
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims abstract description 9
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910001629 magnesium chloride Inorganic materials 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims description 27
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- 238000001035 drying Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000003607 modifier Substances 0.000 claims description 3
- 229940031958 magnesium carbonate hydroxide Drugs 0.000 claims description 2
- 239000002253 acid Substances 0.000 abstract description 10
- 230000032683 aging Effects 0.000 abstract description 9
- 239000002245 particle Substances 0.000 abstract description 9
- 238000009826 distribution Methods 0.000 abstract description 8
- 238000005349 anion exchange Methods 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 238000001179 sorption measurement Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 14
- 229940091250 magnesium supplement Drugs 0.000 description 6
- 230000003068 static effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 229940050906 magnesium chloride hexahydrate Drugs 0.000 description 3
- DHRRIBDTHFBPNG-UHFFFAOYSA-L magnesium dichloride hexahydrate Chemical compound O.O.O.O.O.O.[Mg+2].[Cl-].[Cl-] DHRRIBDTHFBPNG-UHFFFAOYSA-L 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 241001300571 Alaba Species 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 229960002337 magnesium chloride Drugs 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- 241001232346 Gymnosperma glutinosum Species 0.000 description 1
- 229910003023 Mg-Al Inorganic materials 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 229940024545 aluminum hydroxide Drugs 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000006356 dehydrogenation reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- BJAJDJDODCWPNS-UHFFFAOYSA-N dotp Chemical compound O=C1N2CCOC2=NC2=C1SC=C2 BJAJDJDODCWPNS-UHFFFAOYSA-N 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 150000005837 radical ions Chemical class 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 229940083608 sodium hydroxide Drugs 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003878 thermal aging Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/78—Compounds containing aluminium and two or more other elements, with the exception of oxygen and hydrogen
- C01F7/784—Layered double hydroxide, e.g. comprising nitrate, sulfate or carbonate ions as intercalating anions
- C01F7/785—Hydrotalcite
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The invention discloses a method for synthesizing high-purity magnesium aluminum hydrotalcite, which takes magnesium chloride as a main magnesium source, aluminum hydroxide as an aluminum source and carbon dioxide as a main carbonate source; simultaneously introducing magnesium carbonate as an auxiliary magnesium source and an auxiliary carbonate source, and reacting to obtain the magnesium aluminum hydrotalcite. The invention can form an excellent double-layer structure, and the carbonate is stable and interlaminar to the greatest extent, so that the product has good adsorptivity and anion exchange performance, and has excellent acid gas adsorption performance. The invention uses magnesium carbonate as an auxiliary magnesium source, and hydrotalcite with different magnesium-aluminum ratios can be obtained by adjusting the dosage of the magnesium carbonate alone, thereby achieving the purpose of adjusting the acid-base performance of the hydrotalcite so as to enable the hydrotalcite to be suitable for different PVC, PP, PE products. The hydrotalcite prepared by the method has high purity, uniform particle size distribution and good acid absorption performance; in addition, the product prepared by the invention has strong heat stability and good ageing resistance.
Description
Technical Field
The invention relates to the technical field of hydrotalcite preparation, in particular to a method for synthesizing high-purity magnesium aluminum hydrotalcite.
Background
Hydrotalcite-like compounds, also called Layered Double Hydroxides (LDHs), are commonly used heat stabilizers, acid absorbers, anti-aging agents, ultraviolet inhibitors, and the like, and are often added to PVC, PP, PE and other products to be used as modifiers.
PVC and other materials can remove active chlorine atoms during thermal degradation to generate HCl and conjugated multiolefin at the same time; as the reaction proceeds under the catalysis of free HCl, longer chain conjugated multiolefin is formed, resulting in "zippered" dehydrogenation, leading to rapid degradation of the material.
In hydrotalcite, the divalent metal oxide has stronger alkalinity, the trivalent metal oxide has weaker acidity, and the interlayer anions are weak acid radical ions, so that the whole molecule of the hydrotalcite is alkalescent, and the hydrotalcite has good acid absorption effect. Furthermore, the double layer structure of hydrotalcite also results in hydrotalcite having excellent adsorption effect and anion exchange performance. When the hydrotalcite is applied to the modification of materials such as PVC, the free acid released by the hydrotalcite can be effectively adsorbed, so that the further catalysis of the free acid on the materials is avoided; the hydrotalcite-like stabilizer can also perform interlayer anion displacement reaction with free acid, so that the thermal stability of the hydrotalcite-like stabilizer is greatly improved.
In the prior art, as CN202010475473.2, magnesium aluminum hydrotalcite is prepared by adopting magnesium hydroxide as a magnesium source, aluminum hydroxide as an aluminum source and carbon dioxide as a carbonate source through a period of reaction. But it has the following technical problems: 1. carbon dioxide gas is used as a carbonate source, so that the layered structure of hydrotalcite is easily defective, and the adsorption effect and the anion exchange performance of hydrotalcite are affected; 2. the magnesium source and the carbonate source are single, and after the production is carried out by the accurate proportioning of the actual use production line, the proportion of magnesium and aluminum in hydrotalcite is difficult to be changed rapidly; therefore, the produced product has single magnesium-aluminum ratio and fixed acid-base performance, and the performance of hydrotalcite is difficult to adjust according to different applicable products.
Disclosure of Invention
The invention provides a method for synthesizing high-purity magnesium aluminum hydrotalcite, which aims at the defects of the prior art.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a method for synthesizing high-purity magnesium aluminum hydrotalcite, wherein magnesium chloride is used as a main magnesium source, aluminum hydroxide is used as an aluminum source, and carbon dioxide is used as a main carbonate source; simultaneously introducing magnesium carbonate as an auxiliary magnesium source and an auxiliary carbonate source, and reacting to obtain the magnesium aluminum hydrotalcite.
The specific synthesis method of the invention comprises the following steps:
s1, adding magnesium chloride, aluminum hydroxide, magnesium carbonate and sodium hydroxide into water, and carrying out high-pressure reaction for 0.2-2h at 60-170 ℃;
s2, after the reaction in the step S1 is finished, introducing carbon dioxide gas, regulating the PH value of the reaction solution, and continuing the high-pressure reaction for 3-12h at the temperature of 60-170 ℃;
s3, filtering, washing and drying the product to obtain a finished product of the magnesium aluminum hydrotalcite.
The invention has the beneficial effects that:
1. compared with the traditional technical scheme of using carbon dioxide gas as the carbonate source, the invention can form an excellent double-layer structure, and the carbonate is stable and interlaminar to the greatest extent, so that the product has good adsorptivity and anion exchange performance, and excellent performance of adsorbing acid gas.
2. The invention uses magnesium carbonate as an auxiliary magnesium source, and hydrotalcite with different magnesium-aluminum ratios can be obtained by adjusting the dosage of the magnesium carbonate alone, thereby achieving the purpose of adjusting the acid-base performance of the hydrotalcite so as to enable the hydrotalcite to be suitable for different PVC, PP, PE products.
3. The hydrotalcite prepared by the method has high purity, uniform particle size distribution and good acid absorption performance; in addition, the product prepared by the invention has strong heat stability and good ageing resistance.
4. The preparation process is simple, can be quickly adjusted according to the parameter requirements of the product, and has good market application effect.
Drawings
FIG. 1 is a comparative graph of a PVC material made using a magnesium aluminum hydrotalcite product of the present invention after static aging;
wherein, the left column, the middle column and the rightmost column are respectively the market sample 1, the market sample 2 and the static aging product graph of the experimental group.
FIG. 2 is a graph comparing the static aging of PVC material made using the magnesium aluminum hydrotalcite product of the present invention;
wherein, the left column, the middle column and the right column are respectively the static aging product graphs of the experimental group, the commercial sample 1 and the commercial sample 2.
FIG. 3 is a comparative graph of the initial PP gum head made with the Mg-Al hydrotalcite product of the present invention;
wherein, the left column, the middle column and the rightmost column are respectively a commercial sample 1, a commercial sample 2 and an experimental group.
FIG. 4 is a graph of particle size comparison of hydrotalcite products of the present invention with a control group;
wherein, the graph (A), the graph (B) and the graph (C) are respectively the grain size comparison graphs of the commercial sample 1, the commercial sample 2 and the experimental group.
Detailed Description
For a better understanding of the present invention, the following examples are further illustrated, but are not limited to the following examples.
Example 1: the embodiment discloses a synthesis method of high-purity magnesium aluminum hydrotalcite, which comprises the following steps: s1, adding 100g of magnesium chloride hexahydrate, 30g of aluminum hydroxide, 50g of magnesium carbonate and 2g of sodium hydroxide into 500mL of water, and carrying out high-pressure reaction for 1h at 98 ℃;
s2, after the reaction in the step S1 is finished, introducing carbon dioxide gas, regulating the pH value of the reaction solution to 9-10, and continuing the high-pressure reaction for 11 hours at the temperature of 110 ℃;
s3, filtering, washing and drying the product to obtain a finished product of the magnesium aluminum hydrotalcite.
The pressure of the high pressure reaction in this example was 2MPa.
After detection, the magnesium-aluminum ratio of the product prepared in the embodiment is 2.05.
Example 2: the embodiment discloses a synthesis method of high-purity magnesium aluminum hydrotalcite, which comprises the following steps:
s1, adding 120g of magnesium chloride hexahydrate, 30g of aluminum hydroxide, 60g of magnesium carbonate and 5g of sodium hydroxide into 500mL of water, and carrying out high-pressure reaction for 2h at 70 ℃;
s2, after the reaction in the step S1 is finished, introducing carbon dioxide gas, regulating the pH value of the reaction solution to 9-10, and continuing the high-pressure reaction for 8 hours at the temperature of 110 ℃;
s3, filtering, washing and drying the product to obtain a finished product of the magnesium aluminum hydrotalcite.
The pressure of the high pressure reaction in this example was 2MPa.
After detection, the magnesium-aluminum ratio of the product prepared in the embodiment is 2.41.
Example 3: the embodiment discloses a synthesis method of high-purity magnesium aluminum hydrotalcite, which comprises the following steps:
s1, adding 80g of magnesium chloride hexahydrate, 35g of aluminum hydroxide, 90g of magnesium carbonate and 5g of sodium hydroxide into 500mL of water, and carrying out high-pressure reaction for 0.2h at the temperature of 70 ℃;
s2, after the reaction in the step S1 is finished, introducing carbon dioxide gas, regulating the pH value of the reaction solution to 9-10, and continuing the high-pressure reaction for 4 hours at the temperature of 110 ℃;
s3, filtering, washing and drying the product to obtain a finished product of the magnesium aluminum hydrotalcite.
In this embodiment, a surface modifier may be further added after step S3 to improve dispersibility and compatibility.
The pressure of the high pressure reaction in this example was 8MPa.
After detection, the magnesium-aluminum ratio of the product prepared in the embodiment is 2.23.
The PVC material manufactured by the product of the invention is used for static aging test. A control group is arranged in the test, and a commercial sample 1 and a commercial sample 2 are respectively selected; the commercial sample 1 and the commercial sample 2 are respectively imported hydrotalcite purchased from Alaba and Shijing SK-20 hydrotalcite, and the experimental group is PVC material prepared by the product of the invention.
Adding PVC into the sample, adding a small amount of auxiliary materials, uniformly mixing, adding a certain amount of DOTP, pressing at 180 ℃ for 3min in an open mill to obtain thin slices with consistent thickness, taking the slices with the size of 12 multiplied by 12cm out, placing the slices in a thermal aging oven at 185+/-2 ℃, sampling at intervals of 25min under the conditions of blowing and rotation, heating at 180 ℃, and observing the aging condition of the product after the test.
As shown in fig. 1 and 2, the experimental group of the product obtained in example 1 has significantly better thermal stability than the existing product, and can effectively avoid thermal decomposition of PVC material.
The PP material manufactured by the product of the invention is used for static aging test. A control group is arranged in the test, and a commercial sample 1 and a commercial sample 2 are respectively selected; the commercial sample 1 and the commercial sample 2 are respectively imported hydrotalcite purchased from Alaba and Shijing SK-20 hydrotalcite, and the experimental group is PP material prepared by the product of the invention.
And adding PP into the sample, adding a small amount of auxiliary materials, uniformly mixing, taking 62g of the mixture, processing the mixture in an RM-200C torque rheometer for 5min, taking the mixture off the mixture for comparison, wherein the heating temperature of the rheometer is 185 ℃, and observing the whiteness of the product after the test.
As shown in fig. 3, the experimental group has significantly better thermal stability than the existing products, and can effectively avoid thermal decomposition of PP materials.
The particle size distribution of the control group 1 is between 0.4 and 2.0 μm, the particle size distribution of the control group 2 is between 0.4 and 4.2 μm, and the particle size distribution range is larger. The particle size distribution of the experimental group is between 0.4 and 0.7 mu m, the particle size distribution range is small, and the particle size distribution is uniform and neat, the double-layer structure is formed completely, and the overall purity is high.
The above description of the specific embodiments of the present invention is given by way of example only, and the present invention is not equivalent to the above-described specific embodiments. Any equivalent modifications and substitutions for the present invention will occur to those skilled in the art, and are also within the scope of the present invention. Accordingly, equivalent changes and modifications to the disclosed embodiments are intended to be included within the scope of the present invention.
Claims (7)
1. The method is characterized in that magnesium chloride is used as a main magnesium source, aluminum hydroxide is used as an aluminum source, and carbon dioxide is used as a main carbonate source; simultaneously introducing magnesium carbonate as an auxiliary magnesium source and an auxiliary carbonate source, and reacting to obtain the magnesium aluminum hydrotalcite.
2. The method for synthesizing high-purity magnesium aluminum hydrotalcite according to claim 1, comprising the steps of:
s1, adding magnesium chloride, aluminum hydroxide, magnesium carbonate and sodium hydroxide into water, and carrying out high-pressure reaction for 0.2-2h at 60-170 ℃;
s2, after the reaction in the step S1 is finished, introducing carbon dioxide gas, regulating the PH value of the reaction solution, and continuing the high-pressure reaction for 3-12h at the temperature of 60-170 ℃;
s3, filtering, washing and drying the product to obtain a finished product of the magnesium aluminum hydrotalcite.
3. The method for synthesizing high-purity magnesium aluminum hydrotalcite according to claim 2, wherein in step S1, the molar ratio of magnesium chloride to magnesium aluminum element in the aluminum source is 1:1-6.
4. The method for synthesizing high purity magnesium aluminum hydrotalcite according to claim 2, wherein in step S1, the molar ratio of the aluminum source to magnesium carbonate is 1:1-2.
5. The method for synthesizing high-purity magnesium aluminum hydrotalcite according to claim 2, wherein in the steps S1 and S2, the pressure of the high-pressure reaction is 1 to 10MPa.
6. The method for synthesizing high purity magnesium aluminum hydrotalcite according to claim 2, wherein the PH of the reaction solution in step S2 is 9 to 10.
7. The method for synthesizing high purity magnesium aluminum hydrotalcite according to claim 2, wherein a surface modifier is added after step S3 to improve dispersibility and compatibility.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310763203.5A CN116495761B (en) | 2023-06-27 | 2023-06-27 | Synthesis method of high-purity magnesium aluminum hydrotalcite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310763203.5A CN116495761B (en) | 2023-06-27 | 2023-06-27 | Synthesis method of high-purity magnesium aluminum hydrotalcite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116495761A true CN116495761A (en) | 2023-07-28 |
| CN116495761B CN116495761B (en) | 2023-09-12 |
Family
ID=87327017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310763203.5A Active CN116495761B (en) | 2023-06-27 | 2023-06-27 | Synthesis method of high-purity magnesium aluminum hydrotalcite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116495761B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5250279A (en) * | 1991-12-20 | 1993-10-05 | J. M. Huber Corporation | Method for the manufacture of hydrotalcite |
| CN102910653A (en) * | 2012-11-09 | 2013-02-06 | 北京化工大学 | Method for preparing magnesium-based layered composite metal hydroxide through high-pressure continuous feeding technology |
| CN107416872A (en) * | 2017-09-01 | 2017-12-01 | 上海华峰新材料研发科技有限公司 | The preparation method of magnalium carbonate form hydrotalcite |
| CN111453750A (en) * | 2020-05-29 | 2020-07-28 | 山东长泽新材料科技有限公司 | Clean synthesis process of magnesium aluminum hydrotalcite |
| CN113104871A (en) * | 2021-04-25 | 2021-07-13 | 北京化工大学 | Method for preparing magnesium-aluminum hydrotalcite from magnesite |
| CN113461037A (en) * | 2021-07-12 | 2021-10-01 | 安徽大学绿色产业创新研究院 | Preparation method of magnesium-aluminum hydrotalcite |
| CN113620326A (en) * | 2021-08-20 | 2021-11-09 | 云南创能斐源金属燃料电池有限公司 | Method for preparing magnesium-aluminum-zinc hydrotalcite from aluminum-air battery electrolysis waste liquid and application thereof |
| CN114988451A (en) * | 2022-05-30 | 2022-09-02 | 安徽大学绿色产业创新研究院 | Preparation method for synthesizing magnesium-aluminum intercalation material by using magnesium carbonate |
-
2023
- 2023-06-27 CN CN202310763203.5A patent/CN116495761B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5250279A (en) * | 1991-12-20 | 1993-10-05 | J. M. Huber Corporation | Method for the manufacture of hydrotalcite |
| CN102910653A (en) * | 2012-11-09 | 2013-02-06 | 北京化工大学 | Method for preparing magnesium-based layered composite metal hydroxide through high-pressure continuous feeding technology |
| CN107416872A (en) * | 2017-09-01 | 2017-12-01 | 上海华峰新材料研发科技有限公司 | The preparation method of magnalium carbonate form hydrotalcite |
| CN111453750A (en) * | 2020-05-29 | 2020-07-28 | 山东长泽新材料科技有限公司 | Clean synthesis process of magnesium aluminum hydrotalcite |
| CN113104871A (en) * | 2021-04-25 | 2021-07-13 | 北京化工大学 | Method for preparing magnesium-aluminum hydrotalcite from magnesite |
| CN113461037A (en) * | 2021-07-12 | 2021-10-01 | 安徽大学绿色产业创新研究院 | Preparation method of magnesium-aluminum hydrotalcite |
| CN113620326A (en) * | 2021-08-20 | 2021-11-09 | 云南创能斐源金属燃料电池有限公司 | Method for preparing magnesium-aluminum-zinc hydrotalcite from aluminum-air battery electrolysis waste liquid and application thereof |
| CN114988451A (en) * | 2022-05-30 | 2022-09-02 | 安徽大学绿色产业创新研究院 | Preparation method for synthesizing magnesium-aluminum intercalation material by using magnesium carbonate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116495761B (en) | 2023-09-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| bin Hussein et al. | Nanocomposite-based controlled release formulation of an herbicide, 2, 4-dichlorophenoxyacetate incapsulated in zinc–aluminium-layered double hydroxide | |
| JP5423824B2 (en) | Hydrotalcite compound particle powder | |
| Wei et al. | Layered solids as a “molecular container” for pharmaceutical agents: L-tyrosine-intercalated layered double hydroxides | |
| Iyi et al. | Deintercalation of carbonate ions from carbonate-type layered double hydroxides (LDHs) using acid–alcohol mixed solutions | |
| CA2564630C (en) | Organic acid anion containing aluminum salt hydroxide particles, production method thereof, and use thereof | |
| Runjuan et al. | Zn-Al-La hydrotalcite-like compounds as heating stabilizer in PVC resin | |
| EP1878701B1 (en) | Alunite compound particle, process for producing the same and use thereof | |
| KR101178397B1 (en) | Low soda boehmite and preparation method thereof using hydrothermal synthesis | |
| WO2007074729A1 (en) | Hydrotalcite particles, resin stabilizers comprising the same, halogen-containing resin compositions, and anion scavengers comprising the particles | |
| Iyi et al. | Deintercalation of carbonate ions and anion exchange of an Al-rich MgAl-LDH (layered double hydroxide) | |
| CN103864155A (en) | Preparation method of high-crystallinity Fe-based hydrotalcite-like compound | |
| CN116495761B (en) | Synthesis method of high-purity magnesium aluminum hydrotalcite | |
| WO2007051377A1 (en) | Hydrotalcite laminated by organic anion(s) comprising a double bond and its use as a heat stabilizer | |
| Aisawa et al. | Preparation of dipentaerythritol-combined layered double hydroxide particle and its thermostabilizing effect for polyvinyl chloride | |
| Tang et al. | Fabrication and properties of Acid Yellow 49 dye-intercalated layered double hydroxides film on an alumina-coated aluminum substrate | |
| CN107057172B (en) | Modified magnesium-aluminum hydrotalcite/ammonium polyphosphate/carbon forming foaming agent/phosphazene compound flame retardant | |
| Jobbágy et al. | Homogeneous precipitation of layered Ni (II)–Cr (III) double hydroxides | |
| CN113860341A (en) | High-purity flaky boehmite and preparation method thereof | |
| KR20150104479A (en) | Carbon Dioxide Sorbent and Method for Preparing the Same | |
| CN115716933B (en) | Easily-dispersible hydrotalcite-based composite material for polymer and preparation method thereof | |
| JPH04198011A (en) | Production of molded article of binderless x type zeolite | |
| Korytkova et al. | Synthesis of nanotubular nickel hydrosilicates and nickel-magnesium hydrosilicates under hydrothermal conditions | |
| CN1948257A (en) | Method of synthesizing potassium sorbate | |
| KR100486669B1 (en) | Method of synthesizing hydrotalcites | |
| KR20140039906A (en) | The method of preparing layered double hydroxide that a reactive inserpion-substance between layer was added |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |