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A fine-grained lead-silver ore collector

A collector, lead-silver technology, applied in solid separation, flotation and other directions, can solve the problems of low recovery rate of lead-silver ore, waste of mineral resources, loss of enterprises and countries, etc.

Active Publication Date: 2016-03-02
NORTHWEST RES INST OF MINING & METALLURGY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the current lead-silver ore flotation process, the lead-silver ore sulfide collectors are black drugs such as xanthate and butyl ammonium black drugs, which are not very effective in collecting fine-grained lead-silver minerals. Well, the recovery rate of lead-silver ore is low, resulting in a great waste of mineral resources, causing great losses to enterprises and the country

Method used

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  • A fine-grained lead-silver ore collector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Example 1 Weighing: Potassium carbamate 35kg, sodium thiophosphate 40kg and amyl sodium xanthate 8kg; the above materials are added to a stirring tank, at normal temperature and pressure, stirring speed 150 rpm, stirring time 45 minutes The collector of the present invention is obtained after stirring and mixing under the technological conditions.

[0011] Under the condition that the grinding fineness is less than 43 microns and accounts for 80%, the collector of this embodiment is used to carry out the beneficiation test on the lead-silver ore. The grade of the lead-silver ore is: lead grade 5.6%, silver grade 44.53g / t. The ore yield is 15.88%, the lead grade in ore dressing is 30.58%, the silver grade is 207.66g / t, the lead recovery rate in ore dressing is 85.98%, and the silver recovery rate in ore dressing is 76.98%.

Embodiment 2

[0012] Example 2 Weighing: 40 kg of sodium carbamate, 50 kg of potassium aminothiophosphate and 10 kg of amyl sodium xanthate; adding the above materials into a stirring tank, at normal temperature and pressure, a stirring speed of 120 rpm, and a stirring time of 60 minutes The collector of the present invention is obtained after stirring and mixing under the conditions.

[0013] Under the condition that the grinding fineness is less than 43 microns and accounts for 80%, the collector of this embodiment is used to carry out the beneficiation test on the lead-silver ore. 30.94%, silver grade 218.33g / t, beneficiation lead recovery rate 86.75%, beneficiation silver recovery rate 77.00%; the collector components and beneficiation test data results in this embodiment are shown in Table 1.

Embodiment 3

[0014] Example 3 Weighing: Potassium Carbamate 45kg, Sodium Thiophosphate 42kg and Amyl Sodium Xanthate 12kg; Add the above-mentioned materials in a stirred tank, at normal temperature and pressure, with a stirring speed of 150 rpm and a stirring time of 50 minutes. The collector of the present invention is obtained after stirring and mixing under the technological conditions.

[0015] Under the condition that the grinding fineness is less than 43 microns and accounts for 90%, the collector of this embodiment is used to carry out the beneficiation test on the lead-silver ore. The grade of the lead-silver ore is the same as in Example 1. 30.33%, silver grade 208.00g / t, beneficiation lead recovery rate 86.09%, beneficiation silver recovery rate 76.23%; the collector components and beneficiation test data results of this embodiment are shown in Table 1.

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Abstract

The invention relates to a beneficiation reagent, in particular to a fine lead and silver ore collecting agent. The fine lead and silver ore collecting agent comprises, by weight, 35-45 parts of carbamate, 40-50 parts of amino thiophosphate and 8-15 parts of sodium amyl xanthate. A method for preparing the materials in the parts by weight into the fine lead and silver ore collecting agent includes putting the carbamate, the amino thiophosphate and the sodium amyl xanthate into a stirring barrel, and stirring and mixing under normal pressure and at normal temperature and under the conditions of stirring speed of 120-180 revolutions per minute and stirring time of 0.5-1 hour to obtain the fine lead and silver ore collecting agent. The fine lead and silver ore collecting agent is good in selectivity and high in collecting capability and has high collecting effect particularly on fine lead and silver minerals, strong collecting effect can be realized in case that a pH (potential of hydrogen) value of ore pulp is within a range of 8-11, fine lead and silver ore beneficiation indications can be effectively improved, and concentrate grade is improved while recovery rate is increased.

Description

technical field [0001] The invention relates to an ore dressing agent, in particular to a fine-grain lead-silver ore collector. Background technique [0002] With the continuous development of the mining industry, mineral resources are increasingly exhausted, tend to be poor, thin, and hybrid, and lead-silver mines are also facing the same problem. In some enterprises, the beneficiation index of fine-grained lead-silver ore has been unsatisfactory. In order to improve the recovery rate of lead-silver ore and increase the economic and social benefits of the enterprise, it is necessary to search for a kind of fine-grained lead-silver mineral that has a strong capture effect. The beneficiation agent with high absorption capacity is very necessary. [0003] Ore includes useful minerals and useless minerals. Mineral flotation uses beneficiation reagents to adjust the physical and chemical properties of the surface of sorted mineral particles to achieve the purpose of improving t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/014B03D101/02
Inventor 姜永智廖雪珍孙运礼包玺琳郭海宁李国栋袁艳李福兰
Owner NORTHWEST RES INST OF MINING & METALLURGY INST
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