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New nanoscale ammonium perchlorate cladding technology

An ammonium perchlorate, nano-level technology, applied in the direction of perchloric acid, perchlorate, etc., can solve the problem of uneven anti-caking, and achieve the effect of high sphericity and easy long-term storage.

Active Publication Date: 2015-06-10
DALIAN GAOJIA CHEM
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Problems solved by technology

[0003] In view of the above problems, the present invention provides a nano-scale ammonium perchlorate coating process, and researches and develops a new process for coating anti-caking ammonium perchlorate by calcium phosphate wet method. The particles of the coating material reach the nanometer level, and the adsorption capacity exceeds Strong, overcomes the shortcomings of the general method of uneven anti-knot

Method used

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  • New nanoscale ammonium perchlorate cladding technology
  • New nanoscale ammonium perchlorate cladding technology
  • New nanoscale ammonium perchlorate cladding technology

Examples

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Embodiment

[0024] (1) Grind 550kg of calcium oxide into powder and put it into the calcium perchlorate reaction tank, add a certain amount of distilled water at the same time, start stirring; after ten minutes, start to drop 1780kg of perchloric acid into the tank until the end of the reaction, stop Stir, obtain the solution clarification that contains 2312kg calcium perchlorate stand-by;

[0025] (2) Add a certain amount of water to the ammonium phosphate reaction tank, put in 851 kg of diammonium hydrogen phosphate, start stirring until it is completely dissolved, then add 230 kg of ammonia water to the tank to ensure that the pH value is between 8-10, and obtain 961 kg of ammonium phosphate solution, ready to use;

[0026] (3) The prepared calcium perchlorate solution and the ammonium phosphate solution are passed through respective gauges in proportion, and simultaneously enter the calcium phosphate reaction tank to obtain 1000 kg of calcium phosphate-containing solution, and control...

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Abstract

The invention relates to a new nanoscale ammonium perchlorate cladding technology. The technology is characterized in that, in a cladding anti-caking process of ammonium perchlorate, a superfine calcium phosphate cladding anti-caking agent is prepared, and a wet process cladding anti-caking technology is employed to make the ammonium perchlorate adsorb the cladding anti-caking agent uniformly. The technological process includes: preparing a cladding anti-caking solution according to the adding proportion of the cladding anti-caking agent, placing the cladding anti-caking solution in a cladding crockeryware, and starting stirring; and then adding ammonium perchlorate, conducting stirring for half an hour, performing centrifugal separation, and subjecting the product to drying and packaging immediately. According to the invention, the cladding anti-caking agent has particle fineness reaching the nanoscale, effectively blocks caking among particles, is convenient for long-term storage, and is superior to organic cladding anti-caking agents. And by adopting the wet process anti-caking technology, the cladding sphericity is high.

Description

technical field [0001] The invention belongs to the field of fine chemicals, and in particular relates to a nano-scale ammonium perchlorate coating process. technical background [0002] The agglomeration of salt materials is mainly caused by the deliquescence of the crystal surface, which means that the salt is hygroscopic. When the relative humidity of the air drops to the hygroscopic point, the solution formed on the surface of the crystal evaporates, causing the crystal particles to stick together and form agglomerates. In addition, under the influence of pressure and impurities, it will also cause crystal bonding. Therefore, most inorganic salt products need to be coated with anti-caking treatment. Different anti-knot materials can be used according to its own structural performance and application technical requirements. Ammonium perchlorate products have relatively strict requirements for the selection of anti-caking materials due to their special use. Ammonium pe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B11/18
Inventor 于海陈传金钟文田
Owner DALIAN GAOJIA CHEM
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