Collophane quaternary ammonium salt cationic collector, synthesis method and application of collophane quaternary ammonium salt cationic collector

A technology of quaternary ammonium salt cation and synthesis method, which is applied in the field of collophanite quaternary ammonium salt cation collector and its synthesis, can solve the problems of particularly sensitive ore slime, poor water solubility, poor selectivity, etc., and achieve improved separation Sexuality, wide range of raw material sources, and low cost of raw materials

Active Publication Date: 2016-12-21
BLUESTAR LEHIGH ENG INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the poor water solubility, complex configuration, special sensitivity to ore slime and poor selectivity of such collectors, aliphatic amine collectors have not been widely used in phosphate rock flotation.

Method used

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  • Collophane quaternary ammonium salt cationic collector, synthesis method and application of collophane quaternary ammonium salt cationic collector
  • Collophane quaternary ammonium salt cationic collector, synthesis method and application of collophane quaternary ammonium salt cationic collector
  • Collophane quaternary ammonium salt cationic collector, synthesis method and application of collophane quaternary ammonium salt cationic collector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1, a kind of quaternary ammonium salt cationic collector, structural formula such as formula Shown:

[0024]

[0025] In formula I: R 1 , R 2 and R 3 selected from methyl, ethyl, propyl, butyl, hydroxymethyl, hydroxyethyl, hydroxypropyl or hydroxybutyl.

[0026] The quaternary ammonium salt cationic collector is composed of C 1 -C 4 It is prepared from tertiary amine, hydrochloric acid, epichlorohydrin, hexamethylenediamine and strong alkali solution. The molar ratio of each raw material is, hexamethylenediamine: C 1 -C 4 Tertiary amine: hydrochloric acid: epichlorohydrin: strong base=1:1.8: 2.5:1.8: 2.5.

[0027] The synthetic method comprises the steps:

[0028] (1) Preparation of intermediate: Slowly add concentrated hydrochloric acid to C 1 -C 4 In the tertiary amine solution, control the temperature of the reaction system, stir at room temperature for 10 minutes, add epichlorohydrin dropwise, and stir and react at 40°C for 2 hours after the...

Embodiment 2

[0031] Embodiment 2, a kind of quaternary ammonium salt cationic collector, structural formula such as formula Shown:

[0032]

[0033] In formula I: R 1 , R 2 and R 3 selected from methyl, ethyl, propyl, butyl, hydroxymethyl, hydroxyethyl, hydroxypropyl or hydroxybutyl.

[0034] The quaternary ammonium salt cationic collector is composed of C 1 -C 4 It is prepared from tertiary amine, hydrochloric acid, epichlorohydrin, hexamethylenediamine and strong alkali solution. The molar ratio of each raw material is, hexamethylenediamine: C 1 -C 4 Tertiary amine: hydrochloric acid: epichlorohydrin: strong base = 1: 2.5: 1.8: 2.5: 1.8.

[0035] The synthetic method comprises the steps:

[0036] (1) Preparation of intermediate: Slowly add concentrated hydrochloric acid to C 1 -C 4 In the tertiary amine solution, control the temperature of the reaction system, stir at room temperature for 20 minutes, add epichlorohydrin dropwise, and stir and react at 60°C for 4 hours after...

Embodiment 3

[0039] Embodiment 3, a kind of quaternary ammonium salt cationic collector, structural formula such as formula Shown:

[0040]

[0041] In formula I: R 1 , R 2 and R 3 selected from methyl, ethyl, propyl, butyl, hydroxymethyl, hydroxyethyl, hydroxypropyl or hydroxybutyl.

[0042] The quaternary ammonium salt cationic collector is composed of C 1 -C 4 It is prepared from tertiary amine, hydrochloric acid, epichlorohydrin, hexamethylenediamine and strong alkali solution. The molar ratio of each raw material is, hexamethylenediamine: C 1 -C 4Tertiary amine: hydrochloric acid: epichlorohydrin: strong base=1:2.1: 2.1:2: 2.1.

[0043] The synthetic method comprises the steps:

[0044] (1) Preparation of intermediate: Slowly add concentrated hydrochloric acid to C 1 -C 4 In the tertiary amine solution, control the temperature of the reaction system, stir at room temperature for 15 minutes, add epichlorohydrin dropwise, and stir and react at 40~60°C for 3 hours after the...

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PUM

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Abstract

The invention discloses a quaternary ammonium salt cationic collector and a synthesis method of the quaternary ammonium salt cationic collector. The prepared quaternary ammonium salt cationic collector is mainly used for collophane reverse floatation desilication. A preparation technology comprises the two steps of: synthesizing an intermediate containing chlorine and hydroxypropyl by taking C1-C4 tertiary amine, hydrochloric acid and epoxy chloropropane as raw materials, and allowing the synthesized intermediate to react with hexamethylenediamine under alkaline conditions to prepare the quaternary ammonium salt cationic collector. The synthetic route of the collector is simple, a raw material source is wide, the prepared collector is stable, has good water solubility, is convenient to use, and has the advantages of good selectivity, strong collecting force and the like in the collophane reverse floatation desilication.

Description

technical field [0001] The invention belongs to the technical field of phosphate rock collectors, in particular to a collophanite quaternary ammonium salt cationic collector and its synthesis method and application. Background technique [0002] With the continuous development and utilization of phosphate rock resources, rich ore and easy-to-select phosphate rock resources are decreasing day by day. Some places have been depleted, most of the low-grade ore in most areas, most of the ore can only be used after beneficiation and enrichment. It is imminent to solve the flotation of medium and low grade ores, especially the flotation of medium and low grade refractory silica-calcium colloidal. For this type of ore, a large amount of silicate impurities must be discharged during the flotation process to meet the processing needs. [0003] In the 1950s, for the first time in the United States, aliphatic amine cations were used as collectors to successfully realize reverse flotat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/01B03D101/02B03D103/06
CPCB03D1/011B03D2201/02B03D2203/06
Inventor 刘养春宋文义杨勇朱孔金冯春晖徐会会张晓梅
Owner BLUESTAR LEHIGH ENG INST CO LTD
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