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Ammonium sulfide solution and production process thereof

A production process and technology for ammonium sulfide, applied in the field of sodium sulfide solution preparation, can solve the problems of improving the production safety of ammonium sulfide production concentration, difficult to control the concentration of ammonium sulfide solution, high production risk, etc., so as to improve reaction efficiency and solubility , Improve production safety and stability, the effect of stable and safe production

Inactive Publication Date: 2021-01-08
吉安天卓选矿药剂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the prior art, the method of mixing ammonia water and hydrogen sulfide gas is usually used for preparation. However, ammonia water is easy to volatilize, resulting in unstable concentration, which makes it difficult to control the concentration of the prepared ammonium sulfide solution. The gas is toxic and the production is more dangerous
[0004] To this end, an ammonium sulfide solution and its production process are provided to solve the problems of controlling the production concentration of ammonium sulfide and improving production safety

Method used

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  • Ammonium sulfide solution and production process thereof

Examples

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Embodiment 1

[0022] An ammonium sulfide solution comprises ammonium sulfide solution. The ammonium sulfide solution is composed of water and ammonium sulfide. The content of ammonium sulfide in the ammonium sulfide solution is 25%. The ammonium sulfide solution is sealed and stored in a storage tank.

[0023] A kind of production technique of ammonium sulfide solution, this production technique comprises the following steps:

[0024] Step 1: raw material preparation, the preparation raw material of ammonium sulfide solution is sodium sulfide and sulfuric acid, measure the sodium sulfide solid of 5 parts per unit mass and 100ml concentration be the sulfuric acid solution of 30%, the sodium sulfide solid and sulfuric acid solution that measure are put into In the reaction tank, the sodium sulfide solid and the sulfuric acid solution are distributed into the reaction tank. The sulfuric acid solution is first put into the reaction tank and then the sodium sulfide solid is poured into the reacti...

Embodiment 2

[0029] An ammonium sulfide solution comprises ammonium sulfide solution. The ammonium sulfide solution is composed of water and ammonium sulfide. The content of ammonium sulfide in the ammonium sulfide solution is 30%. The ammonium sulfide solution is sealed and stored in a storage tank.

[0030] A kind of production technique of ammonium sulfide solution, this production technique comprises the following steps:

[0031] Step 1: raw material preparation, the preparation raw material of ammonium sulfide solution is sodium sulfide and sulfuric acid, measure the sodium sulfide solid of 8 parts of unit mass and 100ml concentration be the sulfuric acid solution of 40%, put the sodium sulfide solid and sulfuric acid solution that measure into In the reaction tank, the sodium sulfide solid and the sulfuric acid solution are distributed into the reaction tank. The sulfuric acid solution is first put into the reaction tank and then the sodium sulfide solid is poured into the reaction ta...

Embodiment 3

[0036] An ammonium sulfide solution comprises ammonium sulfide solution. The ammonium sulfide solution is composed of water and ammonium sulfide. The content of ammonium sulfide in the ammonium sulfide solution is 40%. The ammonium sulfide solution is sealed and stored in a storage tank.

[0037] A kind of production technique of ammonium sulfide solution, this production technique comprises the following steps:

[0038] Step 1: raw material preparation, the preparation raw material of ammonium sulfide solution is sodium sulfide and sulfuric acid, measure the sodium sulfide solid of 10 parts per unit mass and 100ml concentration be the sulfuric acid solution of 50%, the sodium sulfide solid and sulfuric acid solution that measure are put into In the reaction tank, the sodium sulfide solid and the sulfuric acid solution are distributed into the reaction tank. The sulfuric acid solution is first put into the reaction tank and then the sodium sulfide solid is poured into the react...

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Abstract

The invention relates to the technical field of sodium sulfide solution preparation, in particular to an ammonium sulfide solution and a production process thereof. The ammonium sulfide solution is composed of water and ammonium sulfide, the content of ammonium sulfide in the ammonium sulfide solution ranges from 15% to 40%, and the ammonium sulfide solution is stored in a storage tank in a sealedmode. The solution has the beneficial effects that production is carried out in a mode of preparing the ammonia water on site, so that volatilization of the ammonia water in the storage process is greatly reduced, the concentration precision of the ammonia water is improved, errors are reduced, the concentration error of the produced sodium sulfide is reduced, meanwhile, the reaction efficiency and solubility are improved by utilizing the gas storage tank and controlling the temperature, gas leakage caused in the dissolving process is avoided, so that the production safety and stability are improved, and compared with the traditional technology, the process is more stable and safer in production and higher in precision.

Description

technical field [0001] The invention relates to the technical field of sodium sulfide solution preparation, in particular to an ammonium sulfide solution and a production process thereof. Background technique [0002] Ammonium sulfide is an ammonium salt with the molecular formula (NH 4 ) 2 S. It is commonly used in aqueous solution and forms polysulfides and thiosulfates on exposure to air. Soluble in water, ethanol and alkaline solution. It can be used in photographic coloring agents, etc. [0003] In the prior art, the method of mixing ammonia water and hydrogen sulfide gas is usually used for preparation. However, ammonia water is easy to volatilize, resulting in unstable concentration, which makes it difficult to control the concentration of the prepared ammonium sulfide solution. The gas is toxic and the production is more dangerous. [0004] Therefore, an ammonium sulfide solution and its production process are provided to solve the problems of controlling the p...

Claims

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Application Information

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IPC IPC(8): C01C1/20
CPCC01C1/20
Inventor 朱伟刘龙飞
Owner 吉安天卓选矿药剂有限公司
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