A kind of flotation separation method for separating copper oxide ore and talc

A technology of copper oxide and talc, applied in flotation, solid separation, etc., can solve the problems of copper concentrate recovery rate impact, lower copper recovery rate, large consumption of chemicals, etc., achieve good selectivity and collection performance, and inhibit talc Minerals, little effect on environmental pollution

Active Publication Date: 2022-07-05
HUNAN RES INST FOR NONFERROUS METALS
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Pre-removal of talc by gravity separation or flotation will lead to the loss of some copper minerals and reduce the recovery rate of copper; while the existing copper oxide selection process uses a single or combined inhibitor to suppress talc, which not only consumes a lot of chemicals, but also affects the copper concentrate. has a greater impact on the recovery rate of

Method used

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  • A kind of flotation separation method for separating copper oxide ore and talc
  • A kind of flotation separation method for separating copper oxide ore and talc
  • A kind of flotation separation method for separating copper oxide ore and talc

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A copper oxide ore, the raw ore copper grade is about 3.85%, the copper in the raw ore is mainly malachite and azurite, and the gangue minerals are mainly talc and quartz.

[0027] The raw ore is milled by adding sodium sulfide to the fineness of 68%-74μm, the pH value of the pulp is 10.4, adding 180g / t cyclic sodium pyrophosphate as the pulp dispersant, adding 250g / ton magnesium sulfate and 40g / ton polyacrylamide valerate After fully stirring, 120g / ton of diethylaminobutyl xanthate was added to obtain copper oxide coarse concentrate and rougher tailings by flotation. And the amount of diethylaminobutyl xanthate in sweep selection two is 30g / ton and 10g / ton respectively.

[0028] The roughing concentrate is added with magnesium sulfate and valerate polyacrylamide for selection. The dosage of magnesium sulfate and valerate polyacrylamide in selection 1, selection 2 and selection 3 is 50g / ton and 20g / ton respectively, 30g / ton and 10g / ton, 20g / ton and 10g / ton to obtain co...

Embodiment 2

[0036] A copper oxide mineral, the copper grade is about 2.05%, the copper minerals are mainly malachite, and the gangue minerals are mainly talc, kaolin, quartz and calcite.

[0037] The raw ore is milled with sodium sulfide, the fineness is 75%-74μm, the pH value of the pulp is 10.4, 200g / ton of cyclic sodium pyrophosphate and 300g / ton of water glass are added as pulp dispersants, and 300g / ton of magnesium sulfate and hydroxypentine are added. Acrylic acid polyacrylamide 50g / ton, after fully stirring, add diethylaminobutyl xanthate 100g / ton, flotation to obtain copper oxide coarse concentrate and rougher tailings, rougher tailings add diethylaminobutyl xanthate Carry out sweep selection, the amount of diethylaminobutyl xanthate in sweep selection one and sweep selection two is 30g / ton and 10g / ton respectively.

[0038] The roughing concentrate is added with magnesium sulfate and valerate polyacrylamide for selection. The dosage of magnesium sulfate and valerate polyacrylamid...

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Abstract

The invention discloses a method for separating copper oxide concentrate and talc by flotation. Copper oxide minerals are used as raw materials, and sodium sulfide is added to the raw ore for grinding. Sodium and water glass increase the negative potential of the mineral surface, improve the electrostatic repulsion between particles, and make the pulp fully dispersed; add the combined inhibitor of magnesium sulfate and valerate polyacrylamide; finally add diethylaminobutyl xanthate as copper ore It can be used as a collector of substances to achieve high-efficiency separation of copper oxide minerals and talc. The flotation reagent combination of the invention is low-toxic or non-toxic, has the characteristics of less dosage, good effect and the like, and provides an environment-friendly and efficient method for flotation separation of copper oxide minerals and talc.

Description

technical field [0001] The invention belongs to the technical field of beneficiation, and in particular relates to a flotation separation method of copper oxide concentrate and talc. Background technique [0002] As a mineral with high magnesium content, talc has natural hydrophobicity and good natural floatability. In the process of copper flotation, it often enters copper concentrate together with copper minerals, resulting in high magnesium content in copper concentrate. In addition, the hardness of talc is very low and it is easy to sludge, and the formed sludge is easy to cover with copper oxide minerals, which seriously hinders the interaction between the collector and the target minerals, and affects the flotation recovery of copper minerals. At present, the separation of copper oxide and talc at home and abroad mainly adopts the following three ways: (1) removing fine-grained talc by pre-desliming (2) pre-flotation of talc and then flotation of copper oxide (3) addin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/00B03D1/08B03B1/04B03D1/012B03D1/018B03D101/02B03D101/06
CPCB03B1/04B03D1/00B03D1/012B03D1/018B03D1/087B03D2201/005B03D2201/02B03D2201/06
Inventor 胡波陈代雄杨建文董艳红朱雅卓曾慧明肖骏
Owner HUNAN RES INST FOR NONFERROUS METALS
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