Low alkalinity and high selectivity copper-molybdenum flotation collector and preparation method thereof

A high-selectivity, low-alkalinity technology, applied in flotation, solid separation, etc., can solve problems such as poor recovery rate of molybdenum, difficulty in adding lime, poor floatability of molybdenum, etc., to achieve easy Effect of sorting, high promotional value and application prospect, low raw material cost

Active Publication Date: 2018-08-24
BEIJING MINING & METALLURGICAL TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pH value of the pulp is too high, the floatability of molybdenum becomes poor, and the recovery rate of molybdenum is affected; and a large amount of lime is used to produce many harmful consequences: the dosage of the agent is large, the cost is high, and the lime milk , Difficulty in adding, pipe scaling, equipment blockage, associated gold, silver, molybdenum, etc. cannot be effectively enriched into copper concentrate

Method used

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  • Low alkalinity and high selectivity copper-molybdenum flotation collector and preparation method thereof
  • Low alkalinity and high selectivity copper-molybdenum flotation collector and preparation method thereof
  • Low alkalinity and high selectivity copper-molybdenum flotation collector and preparation method thereof

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Experimental program
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Embodiment approach

[0039] (1) The heavy oil is a heavy oil mixture obtained by mixing crude oil and / or residual heavy oil after oil extraction and processing, and is preferably a heavy oil mixture with uniform properties and no stratification.

[0040] (2) The described thiocarbamate is an oily mixture with uniform and non-layered properties; for example: the described thiocarbamate can be a hydrocarbyl-thiocarbamate oily substance, and its general formula is as follows :

[0041]

[0042] Among them, R is C1-C6 straight chain or branched chain alkyl, C1-C6 straight chain or branched chain haloalkane, C1-C6 straight chain or branched chain amine, C1-C6 straight chain or branched chain alcohol, C1-C6 straight chain Or branched chain ester, phenyl, substituted phenyl; R' is C1-C8 straight chain or branched chain alkyl, C1-C8 straight chain or branched chain haloalkane, C1-C8 straight chain or branched chain amine, One of C1-C8 straight chain or branched chain alcohol, C1-C8 straight chain or b...

Embodiment 1

[0056] A low-alkalinity and high-selectivity copper-molybdenum flotation collector, prepared at room temperature, can be used for flotation in pulp with a pH value of 7-9, and its active ingredients include heavy oil, thiocarbamate Ester, hydrocarbon oil mixture, and the ratio of parts by weight of each component can be as shown in table 1 below:

[0057] Table 1

[0058] components

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Abstract

The invention discloses a low alkalinity and high selectivity copper-molybdenum flotation collector and a preparation method thereof. Effective components of the copper-molybdenum flotation collectorcomprise, by weight, 22-28 parts of heavy oil, 8-12 parts of thiocarbamate, 22-28 parts of hydrocarbon oil mixtures and 35-45 parts of diesel. The preparation method of the collector comprises the following steps that 22-28 parts of the hydrocarbon oil mixtures are added into 22-28 parts of the heavy oil and full stir is carried out; 8-12 parts of the thiocarbamate is added and fully stirred, 35-45 parts of the diesel is added and fully stirred, and the low alkalinity and high selectivity copper-molybdenum flotation collector is obtained. According to the low alkalinity and high selectivity copper-molybdenum flotation collector and the preparation method thereof, efficient collection of copper mineral and molybdenum mineral can be achieved in low alkalinity environment with a PH value of 7-9; the concentrate grade is high, separation is convenient, recovery is high, and selectivity is high; equipment is not liable to corrode, and promotion value and application prospect are high.

Description

technical field [0001] The invention relates to the field of copper-molybdenum ore flotation technology, in particular to a low-alkalinity high-selectivity copper-molybdenum flotation collector and a preparation method thereof. Background technique [0002] Because my country's copper-molybdenum ore resources have the characteristics of less rich ore, lean ore, and complex refractory ore, especially with the large-scale mining and utilization of copper-molybdenum ore resources, the easily-selected copper-molybdenum ore resources are gradually decreasing, and the refractory copper-molybdenum ore resources are gradually decreasing. The development and utilization of mineral resources has become an inevitable trend. Low-grade, fine-grained, refractory copper-molybdenum sulfide ore will be one of the important sources of copper-molybdenum resources in my country. [0003] Because molybdenite and chalcopyrite have close buoyancy and are closely associated, most copper-molybdenum ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/018B03D101/02B03D103/04
CPCB03D1/018B03D2201/02B03D2203/04
Inventor 刘慧南吴桂叶刘崇峻刘龙利李成必郑桂兵宋振国朱阳戈
Owner BEIJING MINING & METALLURGICAL TECH GRP CO LTD
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