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Molybdenum multi-metal sulfide ore flotation separation inhibitor and flotation separation method thereof

A technology for sulfide ores and polymetals, applied in flotation, solid separation and other directions, can solve the problems of poor inhibition effect of organic inhibitors, serious environmental pollution, high toxicity, etc., and achieve the effects of safe use, simple preparation process and low toxicity

Inactive Publication Date: 2020-01-07
BEIJING MINING & METALLURGICAL TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the present invention aims to solve the technical problems of high toxicity of traditional inorganic inhibitors, serious environmental pollution, poor inhibitory effect of organic inhibitors, large dosage and high cost in the prior art. The present invention provides a molybdenum polymetallic ore The flotation separation inhibitor and its preparation method and application can not only improve the comprehensive recycling rate of molybdenum, but also effectively reduce the content of other metal impurities in molybdenum concentrate, and the raw materials are easy to obtain, the preparation process is simple, and the use is safe and non-toxic. Low, no harm to human body and environment, so it can effectively replace traditional inhibitors

Method used

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  • Molybdenum multi-metal sulfide ore flotation separation inhibitor and flotation separation method thereof

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Embodiment 1

[0036] Embodiment 1 of the present invention discloses a molybdenum polymetallic sulfide ore flotation separation inhibitor and a flotation separation method thereof, and the adopted technical scheme is as follows:

[0037] Put 6.39g of acrylamide (0.09mol) and 1.16g of allylthiourea (0.01mol) into a 100ml three-necked flask, add 50ml of tetrahydrofuran, stir to make it fully dissolve, and then slowly dropwise add 0.08g of azobisisobutyl Nitrile tetrahydrofuran solution 10ml, control the reaction temperature is 60 ~ 70 ℃, the reaction time is 5 hours, filter and dry to obtain polyacrylamide-allylthiourea polymer, the yield is 98.5%, which is the embodiment of the present invention 1 Molybdenum polymetallic sulfide ore flotation separation inhibitor provided.

[0038] The molybdenum polymetallic sulfide ore flotation separation inhibitor provided by the embodiment of the present invention 1 is used to carry out the separation test of molybdenum polymetallic mixed concentrate: t...

Embodiment 2

[0042] Embodiment 2 of the present invention discloses a molybdenum polymetallic sulfide ore flotation separation inhibitor and a flotation separation method thereof. The adopted technical scheme is as follows:

[0043] Put 4.97g of acrylamide (0.07mol) and 3.48g of allylthiourea (0.03mol) into a 100ml three-necked flask, add 50ml of tetrahydrofuran, stir to dissolve it fully, and then slowly dropwise add 0.08g of azobisisobutyl Nitrile tetrahydrofuran solution 10ml, control the reaction temperature is 60 ~ 70 ℃, the reaction time is 5 hours, filter and dry to obtain polyacrylamide-allylthiourea polymer, the yield is 95.6%, which is the embodiment of the present invention 1 Molybdenum polymetallic sulfide ore flotation separation inhibitor provided.

[0044] Utilize the molybdenum polymetallic sulfide ore flotation separation inhibitor provided by the embodiment 2 of the present invention to carry out the molybdenum-lead mixed concentrate separation test: the raw material is t...

Embodiment 3

[0047] Embodiment 3 of the present invention discloses a molybdenum polymetallic sulfide ore flotation separation inhibitor and a flotation separation method thereof, and the adopted technical scheme is as follows:

[0048] Put 6.04g of acrylamide (0.085mol) and 1.74g of allylthiourea (0.015mol) into a 100ml three-necked flask, add 50ml of tetrahydrofuran, stir to make it fully dissolve, and then slowly dropwise add 0.08g of azobisisobutyl Nitrile tetrahydrofuran solution 10ml, control the reaction temperature is 60 ~ 70 ℃, the reaction time is 5 hours, filter and dry to obtain polyacrylamide-allylthiourea polymer, the yield is 97.6%, which is the embodiment of the present invention 3 Molybdenum polymetallic sulfide ore flotation separation inhibitor provided.

[0049] Utilize the molybdenum polymetallic sulfide ore flotation separation inhibitor provided by the embodiment of the present invention 3 to carry out molybdenum-lead and copper-molybdenum pure mineral artificial mix...

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Abstract

The invention discloses a molybdenum multi-metal sulfide ore flotation separation inhibitor and a flotation separation method thereof. A preparation method of the molybdenum multi-metal sulfide ore flotation separation inhibitor comprises the steps: putting acrylamide and allyl thiourea into an organic solvent, carrying out copolymerization reaction under the initiation of an oil-soluble initiator, setting the temperature to be 50-90 DEG C, and carrying out a reaction for 1-10 h to obtain the molybdenum multi-metal sulfide ore flotation separation inhibitor. Effective separation of the molybdenum multi-metal sulfide ore can be achieved, the comprehensive recycling rate of molybdenum is increased, the content of impurities such as copper, lead, sulfur and bismuth in molybdenum concentrate is reduced to the maximum extent, raw materials are easy to obtain, the preparation process is simple, use is safe, toxicity is low, and harm to human bodies and the environment is avoided.

Description

technical field [0001] The invention relates to a molybdenum polymetallic sulfide ore flotation separation inhibitor and a flotation separation method thereof, belonging to the technical field of molybdenum polymetallic sulfide ore beneficiation. Background technique [0002] Flotation is one of the most commonly used and effective methods in the processing of mineral resources. It can effectively separate hydrophobic particles (such as valuable minerals) from hydrophilic particles (such as gangue minerals), so as to achieve efficient and comprehensive utilization of valuable minerals. Purpose. In the separation of complex and refractory molybdenum polymetallic sulfide ores, the flotation separation of molybdenite and other sulfide ores has always been a difficult problem. [0003] my country's molybdenum resource reserves are relatively rich, but the grade is generally low, and it is often associated with copper, lead, zinc, bismuth, sulfur and other metal sulfide ores (so...

Claims

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Application Information

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IPC IPC(8): B03D1/016B03D101/06B03D103/02
CPCB03D1/016B03D2201/06B03D2203/02
Inventor 张行荣朱阳戈路亮郑桂兵赵志强韩龙宋振国罗思岗钱志博
Owner BEIJING MINING & METALLURGICAL TECH GRP CO LTD
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