Mineral processing using polymeric materials including moieties selectively bound to minerals

A polymeric material and polymer technology, applied in flotation, solid separation, etc., can solve the problem of collector chemical damage and other issues

Active Publication Date: 2016-11-09
CIDRA MINERALS PROCESSING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This leads to the destruction of collector chemicals

Method used

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  • Mineral processing using polymeric materials including moieties selectively bound to minerals
  • Mineral processing using polymeric materials including moieties selectively bound to minerals
  • Mineral processing using polymeric materials including moieties selectively bound to minerals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0148] Example 1 Attraction of copper sulfide, chalcopyrite, to the surface of a tetraenyl o-propyl quaternary ammonium polymer containing the collector chemical O,O-diethylphosphorothioate

[0149] method

[0150] Monomer N,N,N',N'-tetraallylpropane-1,3 - Dimethylammonium p-toluenesulfonate (>99%, 0.965g) and the synthesized monomers were dissolved in deionized water (0.080g) using gentle heating and vigorous mixing. Then, the photoinitiator "Irgacure2022" (Ciba SC) (0.0280 g) was added, followed by the collector chemical O,O-diethyl potassium thiophosphate (Sigma Aldrich (Sigma Aldrich, 90%, 0.0285g).

[0151] Small beads of this mixture were then placed on a PTFE plate and then a FusionUV LH6 high-intensity UV lamp with a D-bulb (bulb) was used using a single pass at a belt speed of 2 m / min. ) at 100% strength to solidify small beads of the mixture to produce a hard transparent solid.

[0152] The same materials were also used and samples were made without collector che...

Embodiment 2

[0161] Example 2 Attraction of copper sulfide, chalcopyrite, to tetraallyl o-propyl quaternary ammonium polymerization containing collector chemical O,O-diethylphosphorothioate after prolonged exposure to chalcopyrite the surface of the object

[0162] method

[0163] Experiment 1 was repeated except that the polymer beads with collector and reference samples without collector were placed in chalcopyrite and deionized water for 24 hours.

[0164] result

[0165] The collector-containing polymer beads were even darker in appearance compared to the collector-containing polymer beads that were left to stand for 4 hours. The difference in appearance between the beads with collector and the reference beads without collector was even greater than the difference in appearance after 4 hours.

Embodiment 3

[0166] Example 3 Use of Ultrasonic Treatment to Remove Copper Ore from the Surface of Tetraallylquaternary Ammonium Polymers

[0167] method

[0168] The monomer N,N,N',N'-tetraallylpropane-1,3-dimethylammonium p-toluenesulfonate (>99%, 1.47 g) was dissolved in deionized water ( 0.28g). The collector chemical O,O-diethyl potassium thiophosphate (SigmaAldrich, 90%, 0.13g) was dissolved in the mixture, followed by the addition of the photoinitiator "Irgacure2022" (Ciba SC) (about 40mg), and Simultaneously mix thoroughly.

[0169] A portion of the mixture was then placed between two glass slides and the mixture was mixed using two passes at 100% intensity at a belt speed of 4 m / min using a FusionUV LH6 high intensity UV lamp with a D-bulb lamp. Cured to yield a clear solid.

[0170] The polymer film was then recovered from the microscope slide and placed in a mixture containing approximately 200 mg of each of the following powders: Cu(I) sulfide (-325 mesh) in deionized water...

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PUM

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Abstract

According to the present invention there is provided a method of processing a mixture of minerals, the method comprising the steps of: (a) providing a mixture of minerals comprising a metal-bearing mineral and one or more undesired gangues mineral; (b) bringing into contact a mixture of said minerals and a polymeric material comprising a mineral-binding moiety selectively bound to said metal-bearing mineral; and (c) separating said gangue mineral and the polymeric material having the metal-containing mineral bound thereto.

Description

technical field [0001] This invention relates to a method of processing mineral mixtures, in particular to the separation of metal-bearing minerals from unwanted gangue minerals. The present invention also relates to some novel polymers. Background technique [0002] In the field of mineral processing, a pervasive problem is the separation of valuable mineral content (value) from mineral-poor content (gangue). By far the most widely used technique is the time-honored flotation method (Wills' Mineral Processing Technology, 7th edition, eds. B A Wills and T Napier-Munn, Butterworth-Heinemann Press, 2006, incorporated herein by reference in its entirety ). Mineral ore is ground and introduced into a flotation cell as a slurry comprising finely divided ore in water. A "collector" chemical is added to the slurry, and the "collector" chemical adsorbs on the mineral surface, making the mineral surface hydrophobic. The slurry is aerated to create air bubbles in the flotation cel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/012B03D1/016B03D1/02C08F226/04
CPCB03D1/012B03D1/023B03D1/0046B03D1/008B03D1/014B03D2201/02B03D2203/025B03D1/016
Inventor 沃里克·詹姆斯·大卫·艾伦西蒙·戴维·蔡尔兹安德里亚·达菲尼古拉斯·霍罗克斯伊丽莎白·拉金保罗·爱德华·杨·米尔恩詹姆斯·伦纳德·罗尔夫
Owner CIDRA MINERALS PROCESSING
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