Novel mica inhibitor and preparation method and use method thereof

A technology of inhibitor and mica, which is applied in the direction of sulfonate preparation, solid separation, organic chemistry, etc., can solve the problem of high loss rate of mica

Active Publication Date: 2010-10-06
XINJIANG RES INST OF NON FERROUS METALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It solves the problem of high mica loss rate in the flotation iron removal operation before the mica flotation operation, and can make the iron minerals

Method used

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  • Novel mica inhibitor and preparation method and use method thereof
  • Novel mica inhibitor and preparation method and use method thereof
  • Novel mica inhibitor and preparation method and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The preparation of embodiment 1 mica inhibitor

[0023] The first step: generate sodium isethionate with sodium bisulfite and ethylene oxide under heating conditions, and the chemical reaction is as follows (1);

[0024]

[0025] Second step: generate sodium methyl taurate with methylamine and sodium isethionate under conditions of heating and pressurization, and the chemical reaction is as follows (2);

[0026]

[0027] The 3rd step: carry out condensation reaction with oleoyl chloride and sodium methyl taurate to generate N methyl heptadecenyl amido ethyl sulfonate sodium, chemical reaction is as follows formula (3);

[0028]

Embodiment 2

[0029] The using method of embodiment 2 novel mica inhibitors

[0030] (1) the equipment of mica inhibitor aqueous solution: be made into the aqueous solution that weight concentration is 5% with mica inhibitor N methyl heptadecenamido ethyl sulfonate sodium;

[0031] (2) Ore treatment: crush or grind mica concentrate ore to 1mm;

[0032] (3) De-ironing operation before mica flotation: add 100g of mica inhibitor aqueous solution prepared by step (1) per ton of ore and fully stir for 10 minutes, then add 100g of carboxylic acid collectors and fully stir for 10 minutes, carry out Iron removal operation before mica flotation.

Embodiment 3

[0034] (1) the equipment of mica inhibitor aqueous solution: be made into the aqueous solution that weight concentration is 10% with mica inhibitor N methyl heptadecenamidoethyl sulfonate sodium;

[0035] (2) Ore treatment: crush or grind the raw ore containing mica to less than 2mm;

[0036] (3) Deironing operation before mica flotation: add 500g of mica inhibitor aqueous solution prepared by step (1) per ton of ore and stir for 5 minutes, then add 800g of carboxylic acid collector and stir for 5 to 10 minutes , to remove iron before mica flotation.

[0037] The invention is applicable to mines producing mica concentrates, and the mica inhibitor of the invention is added in the iron removal operation before mica flotation, so as to inhibit mica from floating up and reduce the loss rate of mica. Improve the recovery efficiency of mica.

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Abstract

The invention discloses a novel mica inhibitor and a preparation method and a use method thereof. The mica inhibitor is N-methyl-9-heptadecenoic amidoethyl sodium sulfonate. The use method is as follows: (1) mica inhibitor N-methyl fatty amido acetate is prepared into aqueous solution with 5 to 10 percent of weight concentration; (2) mica ore is crushed or ground into 0.1mm to 2mm; (3) each ton of ore is added with 100g to 500g of mica inhibitor and 100g to 800g of carboxylic acid collector and uniformly mixed for 5 to 10 minutes, and deferrization operation is carried out before mica floatation. In the deferrization operation before mica floatation, the mica inhibitor is added to inhibit mica from floating up, so that the loss rate of mica is reduced. The mica recovery efficiency is increased. The mica inhibitor solves the problem that the loss rate of mica is high in the deferrization operation of floatation before mica floatation operation, the ferric mineral adsorbed on the surface of mica can be separated from the surface of mica, and during the floatation of ferric mineral, less mica is mechanically entrapped to float up.

Description

technical field [0001] The invention relates to a novel mica inhibitor and its preparation method and application method. Background technique [0002] Mica concentrate products have certain restrictions on iron mineral content. In order to reduce the iron mineral content in mica concentrate products, carboxylic acid collectors are generally used to float and remove iron minerals before mica flotation. [0003] However, in the flotation process, due to the high negative charge in the local area of ​​the mica surface, and the positive or neutral charge on the surface of many iron minerals, it is easy to adsorb on the surface of the mica, resulting in the entrainment of the mica when the iron minerals are removed. , a large loss. [0004] If inhibitors such as silicates are used to inhibit mica, the recovery rate of subsequent mica flotation operations will drop significantly. Contents of the invention [0005] The technical problem to be solved by the present invention is...

Claims

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Application Information

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IPC IPC(8): B03D1/012C07C309/15C07C303/32B03D101/06
Inventor 封国富伊新辉纪国平张迎棋
Owner XINJIANG RES INST OF NON FERROUS METALS
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