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Acidic solid cleaning agent and preparation method thereof

An acid cleaning agent, solid technology, applied in non-surface-active detergent compositions, detergent compositions, chemical instruments and methods, etc., can solve the problems of solute coagulation, easy leakage and spillage, inconvenient use, etc., and achieves convenient packaging, Shipping savings, nitrite elimination effect

Inactive Publication Date: 2014-04-09
INNER MONGOLIA HEXI AEROSPACE TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a solid acidic cleaning agent to solve the problem of liquid cleaning agent used in equipment cleaning, which is easy to leak and spill during transportation. Inconvenience, providing efficient and safe dairy industry equipment surface cleaning problems with solid acid cleaners

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0015] Use nitric acid and urea to make a solid acid cleaning agent through a certain process, wherein the weight ratio of nitric acid (taking 68% nitric acid as an example, other concentrations can be converted according to the quality of nitric acid) to urea is 5 to 0.5, and the synthesis method includes Follow the steps below:

[0016] 1) Prepare a water bath and keep the temperature at 25°C to 95°C;

[0017] 2) join nitric acid in reaction vessel, stir;

[0018] 3) Add urea, dissolve and then continue to stir for 1 hour;

[0019] 4) Put the stirred and mixed mixture into the cooling device to cool, the cooling temperature is -5°C to 20°C, and acicular crystals are produced while stirring;

[0020] 5) After the above process is carried out for 6 hours to 14 hours, centrifuge and keep the mother liquor for further use next time.

Embodiment 1

[0021] Example 1: Keep the temperature in a water bath to 50°C, weigh 80g of 68% nitric acid, add it to a 250mL beaker, then add 50g of urea, keep stirring for 1 hour, move the beaker to a cooling device, cool the temperature to 10°C, and keep stirring for 10 hours , to produce a needle-like crystal product, after centrifugation, the mother liquor is kept for next use.

Embodiment 2

[0022] Example 2: The operation method is the same as in Example 1, but the temperature of the water bath is changed to 75° C. to obtain a needle-like crystal product.

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PUM

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Abstract

The invention relates to an acidic solid cleaning agent. The acidic solid cleaning agent is an acicular crystal product separated from a reaction of nitric acid and urea, and the composition ratio of nitric acid to urea can be properly and freely added according to nitric acid concentration and the preparation demand. The acidic solid cleaning agent is prepared by the following steps: firstly, preparing water bath, and maintaining the temperature at 25-95 DEG C; adding nitric acid into a reaction container, and stirring; adding urea, and continuously stirring after urea is dissolved; cooling the stirred mixture in a cooling device at a cooling temperature of minus 5 to 20 DEG C, and stirring to generate acicular crystals; separating the generated acicular crystals to obtain the acidic solid cleaning agent. After being dissolved in water, the acidic solid cleaning agent provided by the invention is mainly used for cleaning the inner surfaces of such apparatuses as container, pipeline and the like in a dairy product processing process, the acidic solid cleaning agent is convenient to transport and use, and meanwhile, the acidic solid cleaning agent has the advantages of effectively reducing or eliminating nitrite in the system.

Description

technical field [0001] The invention relates to a solid acid cleaning agent, in particular to a solid acid cleaning agent for equipment in the dairy industry and a preparation method thereof. Background technique [0002] The traditional dairy industry equipment cleaning uses liquid cleaning agents, which are easy to leak and spill during transportation. At the same time, some solutes are prone to solidification when used under low temperature conditions, which brings inconvenience to use. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a solid acidic cleaning agent to solve the problem of liquid cleaning agent used in equipment cleaning, which is easy to leak and spill during transportation. Inconvenience, the problem of providing efficient and safe dairy industry equipment surface cleaning using solid acid cleaners. [0004] In order to solve the existing technical problems, the technical solution adopted in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D7/32
Inventor 牛志刚吴文琴杨联
Owner INNER MONGOLIA HEXI AEROSPACE TECH DEV
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