A kind of cationic flotation collector and its preparation method

A cationic collector technology, which is applied in flotation, chemical instruments and methods, solid separation, etc., can solve the problems that have not been reported on the application of organosilicon ammonium salt compounds, achieve excellent flotation performance, and be easy to add and use , Strong harvesting ability

Active Publication Date: 2011-11-30
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no report on the application of organosilicon ammonium salt compounds in froth flotation

Method used

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  • A kind of cationic flotation collector and its preparation method

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Effect test

Embodiment 1

[0023] Heat 185 parts of dodecylamine to 30-40°C to melt into a liquid, slowly add 108.6 parts of trimethylchlorosilane under stirring, stir and react for 30 minutes, and obtain 293.5 parts of white powder product trimethylsilyl dodecyl ammonium chloride. The resulting product does not need to be refined and can be directly used as a flotation collector.

Embodiment 2

[0025] Heat 185 parts of dodecylamine to 30-40 ° C to melt into a liquid, slowly add 140.6 parts of methyl dimethoxychlorosilane in a molar ratio of 1:1, stir and react for 50 minutes, and obtain 325 parts of white powder product methyl Dimethoxysilyllauryl ammonium chloride. The resulting product does not need to be refined and can be directly used as a flotation collector.

Embodiment 3

[0027] Heat 269 parts of octadecylamine to 60°C to melt into a liquid, slowly add 108.6 parts of trimethylsilyl chloride under stirring, stir and react for 60 minutes, and obtain 369.8 parts of white powder product trimethylsilyl octadecyl chloride Ammonium. The resulting product does not need to be refined and can be directly used as a flotation collector.

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Abstract

The invention discloses a cationic flotation collector and a preparation method thereof. An organic silicon ammonium salt compound shown by a formula I is used as a collector for flotation of oxidized ore and salt ore. In the formula I, R1 is a C8 to C18 alkyl, R2 and R3 may be hydrogen atom, methyl or ethyl respectively, R4, R5 and R6 may be methyl, methoxy, ethyl or ethoxy respectively and X may be Cl or Br. The preparation method is to react fatty amine with organohalosilane at 0 to 80DEG C for 0.5 to 2 hours to form the organic silicon ammonium salt compound shown by the formula I. The organic silicon ammonium salt collector disclosed by the invention can be used in place of a fatty amine collector for removing silicon and purity in reverse flotation of oxidized ore such as aluminum ore and iron ore and for floating zinc oxide and floating and separating potassium chloride and sodium chloride. Compared with fatty amine collector, the cationic flotation collector has the characteristics of high collecting capacity, high selectivity, low use amount per ton of ore, convenience for use and the like.

Description

[technical field] [0001] The invention relates to a cationic flotation collector-organosilicon ammonium salt compound and a preparation method thereof. [Background technique] [0002] In the 1950s, the United States successfully realized the reverse flotation desilication of iron ore by using aliphatic primary amine cationic flotation collectors. Since then, cationic collectors have been regarded as an important flotation agent, and have been successfully applied in reverse flotation desiliconization and impurity removal of iron ore, bauxite, apatite and other oxidized ores. , and also has industrial applications in the flotation of zinc oxide ore, the flotation separation of potassium chloride and sodium chloride, etc. The cationic collectors currently used are mainly aliphatic amine compounds, typically represented by dodecylamine and octadecylamine, which are characterized by strong collector capacity, less dosage of chemicals, and higher flotation efficiency. The techn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/01C07F7/18C07F7/10B03D101/02
Inventor 钟宏夏柳荫王帅张永
Owner CENT SOUTH UNIV
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