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Method for preparing and drying magnesium trisilicate

A drying method and technology of magnesium trisilicate, applied in the direction of magnesium silicate, silicate, separation method, etc., can solve the problems of complex process operation, not conforming to the feeling of no sand, and large product particles.

Active Publication Date: 2019-10-15
SHANXI YUNPENG PHARMA
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

Some starting materials in these preparation methods are not easy to get, and some starting materials have a large cost, and some process operations are more complicated, and some particles of the obtained product are relatively large. In addition, some manufacturers use spray drying to obtain products with Sandy, non-sandy white fine powder that does not meet the requirements of the Chinese Pharmacopoeia standard

Method used

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  • Method for preparing and drying magnesium trisilicate
  • Method for preparing and drying magnesium trisilicate
  • Method for preparing and drying magnesium trisilicate

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Embodiment Construction

[0054] according to Figure 1-Figure 8 , the preparation and drying method of a kind of magnesium trisilicate according to the embodiment of the present invention are explained as follows:

[0055] The preparation and drying method of described a kind of magnesium trisilicate, described preparation and drying method steps are as follows:

[0056] S1. Store a certain amount of boiler scale through a large number of recycling methods; take 1000-1500 parts of boiler scale, pre-treat the selected boiler scale, including screening, drying, and then crush it to 3-5cm pellets, and put it into In the ultrafine grinding equipment, until it is ultrafinely pulverized to a size of 100 mesh, boiler scale powder is formed, and the powdery form is convenient for better chemical reactions; because the highest component of boiler scale is CaCO 3 , the second component is Mg(OH) 2 , so taking as much boiler scale as possible helps to extract more MgSO 4 Magnesium salt is prepared and used; ...

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Abstract

The invention belongs to the technical field of preparation of pharmaceuticals and provides a method for preparing and drying magnesium trisilicate. The magnesium trisilicate comprises the following raw materials: 1000-1500 parts of boiler scale, 50-100 parts of an acid solution, 60-120 parts of sodium silicate (Na2O*nSiO2), 90-180 parts of sodium hydroxide (NaOH) and 30-60 parts of calcium disodium edentate, and major components in the boiler scale comprise Mg<2+>, Ca<2+>, Mg(OH)2, CaCO3 and a small amount of MgCO3. The method for preparing and drying magnesium trisilicate disclosed by the invention starts from S1 of collecting raw materials of the boiler scale and ends at S10 of drying a magnesium trisilicate product. The method for preparing and drying magnesium trisilicate provided bythe invention is low in cost of initial materials, mild in reaction condition, uniform in product shape particle, high in acid absorption and sand-free.

Description

technical field [0001] The invention belongs to the technical field of medicine preparation, and in particular relates to a preparation and drying method of magnesium trisilicate. Background technique [0002] Magnesium trisilicate, also known as "magnesium orthosilicate", has a chemical formula of Mg2Si3O8.nH2O, a white fine powder without sandy feeling, decomposes in concentrated alkali to form Mg(OH)2, and decomposes in hot hydrochloric acid to form silicic acid and Magnesium chloride, decomposed by hydrofluoric acid. Forsterite minerals exist in nature. Because magnesium trisilicate has good adsorption performance and molecular sieve function, it can provide specific molecular field force. It is used in medicine to make antacids, which can neutralize gastric acid and protect ulcer surface. The effect is slow and long-lasting. Relieves stomach pain, heartburn (heartburn), and acid reflux caused by hyperacidity. In the food industry, it is used as an anti-caking agent, ...

Claims

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Application Information

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IPC IPC(8): C01B33/22B01D25/21
CPCB01D25/21C01B33/22
Inventor 刘显海
Owner SHANXI YUNPENG PHARMA
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