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Synthetic method and application for sodium carboxymethyl sodium trithiocarbonate

A technology of sodium carboxymethyl trithiocarbonate and its synthesis method, which is applied in solid separation, organic chemistry, flotation, etc., and can solve the problems of deteriorating workers' operating environment, use, management, and standard discharge that cannot be solved economically and effectively , to achieve the effect of extensive industrial promotion value

Inactive Publication Date: 2015-09-23
广西华锡集团股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Although cyanide can effectively inhibit the activation of zinc minerals, as a highly toxic agent, cyanide has deteriorated the operating environment of workers, and its use, management, and standard discharge have not been economically and effectively solved so far.

Method used

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  • Synthetic method and application for sodium carboxymethyl sodium trithiocarbonate
  • Synthetic method and application for sodium carboxymethyl sodium trithiocarbonate
  • Synthetic method and application for sodium carboxymethyl sodium trithiocarbonate

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Embodiment 3

[0080] Add 0.14mol carbon disulfide to 0.05mol sodium sulfide aqueous solution, keep the temperature at 38℃ and react for 60 minutes, the reaction produces sodium trithiocarbonate; after the reaction, the system is heated to 50℃, and 0.1 mol chloroacetic acid is slowly added dropwise while stirring After the addition of sodium, the reaction is continued for 30 minutes, and after the reaction is completed, it is rotary evaporated and purified to obtain bright yellow crystals.

[0081] The product of this example carried out the implementation test of inhibiting zinc minerals, and was used in the flotation separation of lead-zinc sulfide ore. The process was one coarse, one fine and two sweeps. The lead and zinc grades in the lead concentrate were 22.21% and 4.23%, respectively. Lead recovery The rate is 78.26%.

[0082] Compared with the combined inhibitor of zinc sulfate and sodium sulfite, the lead recovery rate is increased by 0.64%, the zinc content of the lead concentrate is re...

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Abstract

The invention provides a synthetic method and application for sodium carboxymethyl sodium trithiocarbonate. The synthetic method comprises the following steps: adding carbon bisulfide into an aqueous solution of sodium sulfide, allowing the obtained mixed solution to completely react, then adding sodium chloroacetate into reactants, and after completion of reaction, obtaining a product containing sodium carboxymethyl sodium trithiocarbonate. The synthetic method provided by the embodiment in the inveniton is easy to realize; and the synthesized sodium carboxymethyl sodium trithiocarbonate is applied in flotation separation of lead-zinc sulfide ores, is non-toxic and highly-efficient, and has extensive industrial promotion values.

Description

Technical field [0001] The invention relates to the technical field of mineral processing, in particular to a synthesis method and application of sodium carboxymethyl sodium trithiocarbonate. Background technique [0002] Flotation is a technical method to separate useful minerals from ore according to the different physical and chemical properties of the surface of mineral particles. Flotation is the process of separating mineral particles by using the difference in physical and chemical properties of mineral surfaces. Various agents are used to adjust the physical and chemical properties of flotation materials and flotation media during flotation to expand the hydrophobicity and affinity of flotation materials. The difference in water (that is, floatability) improves the flotation efficiency. [0003] Flotation reagents play a key role in the enrichment and separation of minerals by flotation methods. In recent years, the available mineral resources have become more and more le...

Claims

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Application Information

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IPC IPC(8): C07C329/00B03D1/012B03D101/06B03D103/02
Inventor 胡明振陈锦全卜显忠陈进中熊爱臣陈良武张元松谭翠
Owner 广西华锡集团股份有限公司
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