CN105233995A - Preparation method for chalcopyrite flotation agent - Google Patents

Abstract

The invention provides a preparation method for a chalcopyrite flotation agent. The preparation method comprises the steps that erucic acid, maleic acid and low density polyethylene are firstly mixed and then stirred for 10-20 min at the temperature of 50 DEG C-60 DEG C, the stirring frequency is 5,000-10,000 turns/minute, and a first mixture is obtained; butyl xanthate, glycol ether, ethyl alcohol, a coupling reagent KH550 and water are added into the first mixture, stirring is carried out for 10-20 min at the temperature of 35 DEG C-45 DEG C with the frequency of 6,000-12,000 turns/minute, and a second mixture is obtained; and finally sodium dodecyl benzene sulfonate is added into the second mixture, and stirring is carried out for 10-20 min at the temperature of 30 DEG C to 40 DEG C with the frequency of 5,000-10,000 turns/minute. The preparation method is easy to operate, the obtained chalcopyrite flotation agent is good in dispersing and capturing effect and selectivity, and copper in low-grade chalcopyrite can be efficiently selected out in a flotation manner.

Description

A kind of preparation method of chalcopyrite flotation agent

Technical field

The present invention relates to flotation agent field, particularly chalcopyrite flotation agent field.

Background technology

Chalcopyrite is mainly copper iron sulfide, wherein also containing materials such as micro-gold, silver, it is the copper mine type distributing the widest, also be the topmost raw material of copper metallurgy, concentrated distribution is had at Sichuan and Yunnan area, to existing more ripe, stable, the efficient technology of the extraction of copper in general chalcopyrite, but still there is larger room for improvement about the abundant extraction of copper in low-grade chalcopyrite in prior art.

Summary of the invention

The object of the invention is to propose a kind of dispersion respond well, well selective with collecting, especially for the preparation method of the flotation agent of low-grade chalcopyrite flotation.

Technical scheme of the present invention is as follows:

A preparation method for chalcopyrite flotation agent, comprises the following steps:

1) at 50 ~ 60 DEG C, stir 10 ~ 20min after the low density polyethylene (LDPE) being 500 ~ 2000 by erucic acid, maleic acid and molecular weight mixes, stirring frequency is 5000 ~ 10000 revs/min, obtains the first mixture;

2) by butyl xanthate, ethylene glycol ethyl ether, ethanol, coupling agent KH550 and water add in the first mixture, stir 10 ~ 20min, obtain the second mixture under the temperature of 35 ~ 45 DEG C, the frequency of 6000 ~ 12000 revs/min;

3) in the second mixture, add neopelex, under the temperature of 30 ~ 40 DEG C, the frequency of 5000 ~ 10000 revs/min, stir 10 ~ 20min.

Preferably: by mass parts, described flotation agent comprises butyl xanthate 10 ~ 20 parts, erucic acid 1 ~ 5 part, maleic acid 1 ~ 5 part, low density polyethylene (LDPE) 2 ~ 10 parts, ethylene glycol ethyl ether 10 ~ 15 parts, ethanol 5 ~ 10 parts, neopelex 1 ~ 5 part, coupling agent KH5501 ~ 3 part, 30 ~ 50 parts, water.

Operating process of the present invention is simple, and the flotation agent dispersion prepared is respond well, well selective with collecting, can floatingly select the copper in low-grade chalcopyrite efficiently.

Detailed description of the invention

Embodiment 1

1) at 60 DEG C, stir 10min after the low density polyethylene (LDPE) 2 parts being 500 by erucic acid 1 part, maleic acid 1 part and molecular weight mixes, stirring frequency is 10000 revs/min, obtains the first mixture;

2) by butyl xanthate 10 parts, ethylene glycol ethyl ether 10 parts, ethanol 5 parts, coupling agent KH5501 part and 30 parts, water add in the first mixture, stir 20min, obtain the second mixture under the temperature of 45 DEG C, the frequency of 6000 revs/min;

3) in the second mixture, add neopelex 1 part, under the temperature of 40 DEG C, the frequency of 10000 revs/min, stir 10min namely obtain described chalcopyrite flotation agent.

Embodiment 2

1) at 50 DEG C, stir 20min after the low density polyethylene (LDPE) 10 parts being 2000 by erucic acid 5 parts, maleic acid 5 parts and molecular weight mixes, stirring frequency is 5000 revs/min, obtains the first mixture;

2) by butyl xanthate 20 parts, ethylene glycol ethyl ether 15 parts, ethanol 10 parts, coupling agent KH5503 part and 50 parts, water add in the first mixture, stir 10min, obtain the second mixture under the temperature of 35 DEG C, the frequency of 12000 revs/min;

3) in the second mixture, add neopelex 5 parts, under the temperature of 40 DEG C, the frequency of 5000 revs/min, stir 20min namely obtain described chalcopyrite flotation agent.

Claims (2)

1. a preparation method for chalcopyrite flotation agent, is characterized in that: comprise the following steps:

1) at 50 ~ 60 DEG C, stir 10 ~ 20min after the low density polyethylene (LDPE) being 500 ~ 2000 by erucic acid, maleic acid and molecular weight mixes, stirring frequency is 5000 ~ 10000 revs/min, obtains the first mixture;

2) by butyl xanthate, ethylene glycol ethyl ether, ethanol, coupling agent KH550 and water add in the first mixture, stir 10 ~ 20min, obtain the second mixture under the temperature of 35 ~ 45 DEG C, the frequency of 6000 ~ 12000 revs/min;

3) in the second mixture, add neopelex, under the temperature of 30 ~ 40 DEG C, the frequency of 5000 ~ 10000 revs/min, stir 10 ~ 20min.

2. the preparation method of chalcopyrite flotation agent according to claim 1, it is characterized in that: by mass parts, described flotation agent comprises butyl xanthate 10 ~ 20 parts, erucic acid 1 ~ 5 part, maleic acid 1 ~ 5 part, low density polyethylene (LDPE) 2 ~ 10 parts, ethylene glycol ethyl ether 10 ~ 15 parts, ethanol 5 ~ 10 parts, neopelex 1 ~ 5 part, coupling agent KH5501 ~ 3 part, 30 ~ 50 parts, water.