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Non-copper sulphide ore inhibitor and application thereof

An inhibitor, sulfide ore technology, applied in solid separation, flotation and other directions, can solve the problems of difficult large-scale use, harsh preparation conditions, high cost, and achieve the effects of low price, strong selectivity and good dispersibility

Active Publication Date: 2020-03-27
SDIC XINJIANG LUOBUPO POTASH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The drug is expensive and difficult to use on a large scale
[0004] Although there are many types and preparation methods of sulfide inhibitors disclosed at present, there are still deficiencies such as high cost and harsh preparation conditions. have very important economic value

Method used

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  • Non-copper sulphide ore inhibitor and application thereof
  • Non-copper sulphide ore inhibitor and application thereof
  • Non-copper sulphide ore inhibitor and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A kind of non-copper sulfide mineral inhibitor, prepared by the following steps:

[0031] In parts by mass, 2 parts of xanthan gum, 1.5 parts of pectin, and 1.5 parts of gum arabic were mixed and evenly stirred to obtain a non-copper sulfide mineral inhibitor.

[0032] The prepared non-copper sulfide inhibitors were applied to chalcopyrite, molybdenite, and galena single mineral flotation with a particle size of +38-74 μm, such as figure 1 shown, including the following steps:

[0033] (1) Take 2g of chalcopyrite, molybdenite, and galena respectively, add them to 50mL of distilled water, then place them in a 70mL hanging tank flotation machine, stir and adjust the pulp at a speed of 1300r / min to fully disperse the pulp , and adjust the pulp pH to 9.

[0034] (2) Add the inhibitors prepared above to the pulp respectively, and stir for 5 minutes; then add 30mg / L xanthate as a collector, and stir for 2 minutes; finally add 20mg / L MIBC as a foaming agent, and stir for 1 m...

Embodiment 2

[0038] A kind of non-copper sulfide mineral inhibitor, prepared by the following steps:

[0039] In parts by mass, 1 part of xanthan gum, 1 part of pectin and 1 part of gum arabic are mixed and evenly stirred to obtain the non-copper sulfide mineral inhibitor.

[0040] The prepared non-copper sulfide inhibitors are applied to single mineral flotation of sphalerite and pyrite with a particle size of +38-74 μm, including the following steps:

[0041] (1) Take 2g of sphalerite and pyrite respectively, add them to 50mL of distilled water, then place them in a 70mL hanging tank flotation machine, stir and adjust the slurry at a speed of 1300r / min to fully disperse the slurry, and adjust the slurry pH is 8.

[0042] (2) Add the inhibitors prepared above to the pulp respectively, and stir for 5 minutes; then add 30mg / L butyl xanthate as a collector, and stir for 2 minutes; finally add 20mg / L MIBC as a foaming agent, and stir for 1 minute. The concentrations of the inhibitors added ...

Embodiment 3

[0046] A kind of non-copper sulfide mineral inhibitor, prepared by the following steps:

[0047] According to parts by mass, 3 parts of xanthan gum, 2 parts of pectin and 2 parts of gum arabic are mixed and evenly stirred to obtain the non-copper sulfide mineral inhibitor.

[0048] The prepared non-copper sulfide inhibitors were applied to +38-74 μm chalcopyrite, molybdenite, and galena single mineral flotation, including the following steps:

[0049] (1) Take 2g of chalcopyrite, molybdenite, and galena respectively, add them to 50mL of distilled water, then place them in a 70mL hanging tank flotation machine, stir and adjust the pulp at a speed of 1300r / min to fully disperse the pulp , adjust the pH of the pulp to 6, 8, 9, 10, 12.

[0050] (2) Add the above-prepared inhibitors to the pulp respectively, and stir for 5 minutes; then add 30mg / L black powder as a collector, and stir for 2 minutes; finally add 20mg / L MIBC as a foaming agent, and stir for 1 minute. Among them, th...

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Abstract

The invention relates to the technical field of non-ferrous metal beneficiation, in particular to a non-copper sulphide ore inhibitor and application thereof. The non-copper sulphide ore inhibitor isprepared from the following components in parts by mass: 1-3 parts of xanthan gum, 1-2 parts of pectin and 1-2 parts of arabic gum. The non-copper sulphide ore inhibitor is simple in preparation, lowin cost and green and environment-friendly and has a quite high inhibition effect on molybdenite, galena, sphalerite, pyrite and other sulphide ores in the copper bulk concentrate. With application ofthe inhibitor, efficient flotation separation of chalcopyrite and other sulfide minerals can be achieved.

Description

technical field [0001] The invention relates to the technical field of non-ferrous metal beneficiation, in particular to a non-copper sulfide ore inhibitor and its application. Background technique [0002] Copper is an important rare metal and strategic reserve resource, the average content of which is only 1 / 100,000 in the earth's crust. Chalcopyrite is the most important source of copper extraction, and chalcopyrite is usually associated with sulfide minerals. According to statistics, nearly 75% of copper and 50% of molybdenum in the world are produced from copper-molybdenum ore. Copper-molybdenum ore is generally mixed flotation, and then copper-molybdenum separation is often carried out by means of copper-inhibited floating molybdenum or molybdenum-suppressed floating copper. At present, the most used method is to inhibit chalcopyrite flotation molybdenite. Commonly used copper sulfide inhibitors mainly include sulfide (sodium sulfide, sodium hydrosulfide, etc.), cyan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/016B03D1/02B03D101/06B03D103/02
CPCB03D1/016B03D1/02B03D2201/06B03D2203/02
Inventor 杨丙桥严海曾梦媛
Owner SDIC XINJIANG LUOBUPO POTASH CO LTD
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