Production technology for ammonium perchlorate with size of 400 microns

Abstract

The invention relates to the technical field of ammonium perchlorate, in particular to a production technology for ammonium perchlorate with the size of 400 microns. A refined ammonium perchlorate solution is transfused into a temperature preservation tank, the ammonium perchlorate solution is transfused into a crystallizer, and the transfusing rate is controlled according to the crystallization process, so that the ammonium perchlorate solution in the crystallizer keeps stable supersaturation degree; the concentration of thick crystal liquid is 37%-42%, the ammonium perchlorate solution in the crystallizer circularly flows through an external cooler and returns to the crystallizer through a circulating pump, and the circulation volume is 170 m3 / h-200 m3 / h; the temperature of the ammoniumperchlorate solution is kept at 26 DEG C-28 DEG C, so that generated crystal nucleuses grow in a circulating pipeline, the range of fine crystal is 0.2%-2.0%, and after crystal grains in the crystallizer are qualified, intermittent discharging is achieved many times through a discharging pump. Production of the ammonium perchlorate with the particle size of 400 microns is directly controlled, one-time forming is achieved in the crystallizer, and the product yield reaches 99.5% or above.

Description

technical field [0001] The invention relates to the technical field of ammonium perchlorate, in particular to a production process for 400 micron ammonium perchlorate. Background technique [0002] Ammonium perchlorate is a white crystal with deliquescence and wide application. It can be used to make explosives, fireworks, analytical reagents, etc. It can also be used to manufacture ammonium perchlorate explosives, engraving agents and artificial anti-hail agents. Because ammonium perchlorate is a strong oxidant, it will explode when mixed with reducing agent, organic matter, combustibles such as sulfur, phosphorus or metal powder, and it may cause combustion and explosion when it contacts with strong acid, so its production and processing are more difficult. [0003] At present, there is a certain demand for ammonium perchlorate (abbreviated as AP) with a particle size of 400 microns in the market. However, according to GJB617A-2003, ammonium perchlorate products have both ...

AI Technical Summary

Problems solved by technology

If adopt the method of water sieve classification commonly used to obtain the ammonium perchlorate of 400 microns, the yield is very low, less than 20%, and can not be produced in batches

Moreover, at present, there is no technology in China to directly produce 400 micron products with crystallizers

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