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Method for restraining copper-activated sphalerite through whey proteins

A whey protein and sphalerite technology, applied in solid separation, flotation, etc., can solve the problems of sulfide ore flotation separation, excellent floatability of sphalerite, unfriendly environment, etc., to maximize resources Utilization, low dosage of medicine, and convenient operation

Active Publication Date: 2019-01-04
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The new compound described by this patented technology has several advantages compared to current drugs that are harmful or pollutant for humans. It's highly effective without causing side reactions like other chemical agents used on top it. This makes them ideal substances for use during medical procedures while also being safe from environmental concerns.

Problems solved by technology

This patented technical problem addressed by this patents relates to finding effective ways to recover valuable metals from mixed metal-containing materials such as pyrite (FeS2) that can be found naturally throughout garnery industries like coal mines where they may contain various impurities including iron oxides, manganoid compounds, chromium(VI), copper, zinc) and other heavy elements. These contaminants make it challenging to separate these types of material effectively without causing environmental concerns due to their high density compared with common gangue rocks.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method for inhibiting copper-activated sphalerite with whey protein at a concentration of 1×10 -4 After mol / L copper nitrate solution activates sphalerite, adjust the pH of the slurry to 10, and use a concentration of 5×10 -3 The mol / L whey protein solution chelates the copper ions in the pulp and covers the sphalerite surface to prevent its combination with butyl xanthate, and finally adds butyl xanthate for capture.

[0018] Among them, the pulp concentration of the mineral flotation system is 30%; the addition of copper nitrate is 200g / t; the addition of whey protein is 500g / t; the concentration of butyl xanthate is 1×10 -4 mol / L, the addition amount is 200g / t.

[0019] Compared with the sorting scheme without adding whey protein, this method reduces the recovery rate of sphalerite by 46 percentage points.

[0020] This method is used to treat a lead-zinc raw ore with a feed zinc content of 6.22%. After one roughing, two sweepings and three selections, a flotatio...

Embodiment 2

[0022] A method for inhibiting copper-activated sphalerite with whey protein at a concentration of 5×10 -4 After mol / L copper nitrate solution activates sphalerite, adjust the slurry pH to 9, and use a concentration of 3×10 -3 The mol / L whey protein solution chelates the copper ions in the pulp and covers the sphalerite surface to prevent its combination with butyl xanthate, and finally adds butyl xanthate for capture.

[0023] Among them, the pulp concentration of the mineral flotation system is 30%; the addition of copper nitrate is 100g / t; the addition of whey protein is 650g / t; the concentration of butyl xanthate is 1×10 -4 mol / L, the addition amount is 300g / t.

[0024] Compared with the sorting scheme without adding whey protein, this method reduces the recovery rate of sphalerite by 43 percentage points.

[0025] This method is used to treat a polymetallic sulfide ore with a feed zinc content of 3.21%. After one roughing and one sweeping three times of concentration, a...

Embodiment 3

[0027] A method for inhibiting copper-activated sphalerite with whey protein at a concentration of 5×10 -4 After mol / L copper nitrate solution activates sphalerite, adjust the slurry pH to 9, and use a concentration of 4×10 -3 The mol / L whey protein solution chelates the copper ions in the pulp and covers the sphalerite surface to prevent its combination with butyl xanthate, and finally adds butyl xanthate for capture.

[0028] Among them, the pulp concentration of the mineral flotation system is 27%; the addition of copper nitrate is 100g / t; the addition of whey protein is 600g / t; the concentration of butyl xanthate is 1×10 -4 mol / L, the addition amount is 100g / t.

[0029] Compared with the sorting scheme without adding whey protein, this method reduces the recovery rate of sphalerite by 48.2 percentage points.

[0030] This method is used to treat a polymetallic sulfide ore with a feed zinc content of 3.73%. After one roughing, one sweeping and three beneficiation, a flota...

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Abstract

The invention provides a method for restraining copper-activated sphalerite through whey proteins. In the process that the copper-activated sphalerite is floated through a sulfid mineral collector, after the sphalerite is activated through copper sulfate, pH of mineral pulp is adjusted to be 8-11, the whey proteins are added according to the dosage of 500-700 g/t, and the recovery rate of the sphalerite can be lowered from 38.2-51.6% to 1.54-3.37%. Upward floating of the sphalerite is effectively restrained through the whey proteins under technological conditions.

Description

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Claims

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Application Information

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Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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