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Process for synthesizing sodium butyl xanthate

A technology of sodium butyl xanthate and synthesis process, which is applied in the field of synthesis process of sodium butyl xanthate to achieve good quality results

Inactive Publication Date: 2011-05-11
黄军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is suitable for local production, and is simple and easy to implement. The disadvantage is that side reactions are prone to occur.

Method used

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  • Process for synthesizing sodium butyl xanthate
  • Process for synthesizing sodium butyl xanthate
  • Process for synthesizing sodium butyl xanthate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] Processing step of the present invention is:

[0018] In a 250ml dry three-neck flask equipped with a stirring device, a thermometer, and a dropping funnel, add n-butanol and carbon disulfide, the molar ratio of the two is, n (n-butanol): n (carbon disulfide)=1: 1.0~1: 1.5 , and then add powdered NaOH in an amount of n(n-butanol):n(NaOH)=0.8:1~1.2:1, add solvent benzene, and react at 5~35°C for 0.5~1.5h.

[0019] The reaction equation is:

[0020]

[0021] As a kind of preferred version, processing step of the present invention is:

[0022] n (n-butanol):n (sodium hydroxide):n (carbon disulfide)=1:1:1.05, the reaction temperature is 25-30°C, and the reaction time is 1h.

[0023] The present invention selects temperature of reaction, and reaction time is as the factor that influences the synthetic effect of sodium butyl xanthate, see table 1, table 2.

[0024] The influence of table 1 reaction temperature on yield

[0025] serial number

[0026] Note: n ...

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Abstract

The invention relates to a process for synthesizing collector of metal, in particular to a process for synthesizing sodium butyl xanthate. The invention provides the process for synthesizing the sodium butyl xanthate, which is easy to operate and is high in yield, and a product produced by the method has high quality. The technical scheme adopted in the invention is that: the sodium butyl xanthate is synthesized by a crystallization method and the process comprises the following steps of: adding n-butyl alcohol and carbon disulfide into a 250 ml dried neck flask in which a stirring device, a thermometer and a dropping funnel are arranged, wherein the molar ratio of the n-butyl alcohol to the carbon disulfide is 1:1.0-1:1.5; adding powdered NaOH, wherein the molar ratio of the n-butyl alcohol to the NaOH is 0.8:1-1.2:1; and adding solvent benzene and reacting at the temperature of between 5 and 35 DEG C for 0.5 to 1.5 hours.

Description

Technical field: [0001] The present invention relates to a kind of synthesis technology of metal collector, more specifically, relate to a kind of synthesis technology of sodium butyl xanthate. Background technique: [0002] Sodium butyl xanthate is a light yellow powder with an unpleasant smell. It is soluble in water and alcohol and can form insoluble compounds with various metal ions. The structural formula is shown in the figure below. [0003] [0004] Sodium butyl xanthate [0005] Sodium butylxanthate is an excellent collector for sulfide ores, with good selectivity and moderate collection capacity, especially suitable for flotation of chalcopyrite, sphalerite, pyrite, etc., and can also be used for hydrometallurgical precipitation agent and rubber vulcanization accelerator. [0006] The synthetic method of sodium butyl xanthate has: [0007] 1. Direct synthesis method. This method directly reacts alcohol, caustic alkali and carbon disulfide. The biggest advant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C329/12
Inventor 黄军
Owner 黄军
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