Mineral separation method for copper-cobalt ore containing easy-to-float calcium magnesium minerals

A beneficiation method and technology for copper-cobalt ore, which are applied in flotation, solid separation, etc., can solve the problems of large circulation of medium ore, high content of gangue in copper-cobalt concentrate, difficult operation and management, etc., so as to reduce the content of gangue. Effect

Active Publication Date: 2019-01-25
BEIJING MINING & METALLURGICAL TECH GRP CO LTD
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  • Description
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AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the existing technology cannot effectively suppress the easy-floating calcium-magnesium minerals in copper-cobalt ore, the content of gangue in copper-cobalt concentrate is high, it is impossible to take into account the grade of copper-cobalt concentrate and the recovery rate of copper-cobalt, and the circulation of medium ore is large , difficulty in operation and management and other technical problems, the present invention provides a beneficiation method of copper-cobalt ore containing easy-floating calcium-magnesium minerals, which can not only effectively suppress the easy-floating calcium-magnesium minerals in copper-cobalt ore, but also reduce the copper-cobalt concentrate mid-vein Copper and cobalt content can improve the recovery rate of copper and cobalt while ensuring the grade of copper and cobalt concentrate

Method used

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  • Mineral separation method for copper-cobalt ore containing easy-to-float calcium magnesium minerals
  • Mineral separation method for copper-cobalt ore containing easy-to-float calcium magnesium minerals

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Experimental program
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Effect test

Embodiment approach

[0031] (1) In step 1, the pH regulator is preferably CaO, and the grinding fineness is preferably -0.074mm, accounting for 60-80%.

[0032] (2) In step 2, the copper-cobalt mineral regulator is Na 2 S, at least one of NaHS, and the amount of the copper-cobalt mineral regulator is 10-1000g / t raw ore (in this field, "10-1000g / t raw ore" refers to the use of 10-1000g per ton of raw ore; In this document, the dosages of this form all represent this meaning, but the values ​​are different, so no more details). The dosage of the copper-cobalt mineral regulator is the dosage for the first copper-cobalt roughing, and the copper-cobalt mineral regulator does not need to be added in the rest of the flotation process. The flotation time of each copper-cobalt roughing and each copper-cobalt sweeping is 4-6 minutes.

[0033] (3) In step 2, the copper-cobalt mineral collector is mixed with a xanthate collector and a targeted collector, and wherein the xanthate collector consumption is 10 ...

Embodiment 1

[0046] The raw ore of a copper-cobalt ore containing easy-to-float calcium-magnesium minerals contains 0.32% copper and 0.34% cobalt, and the copper-containing minerals in the raw ore are mainly chalcopyrite, chalcocite, bornite, copper blue, sulfur Copper-cobalt ore, etc. The cobalt-containing minerals in the raw ore are mainly sulfur-copper-cobalt ore, cobalt-containing pyrite, cobalt, etc. The gangue minerals in the raw ore are mainly dolomite, talc, chlorite, pyroxene, quartz, etc. The total amount of calcium and magnesium minerals contained in the raw ore accounts for about 60% of the total weight of the raw ore, that is, this is a typical copper-cobalt ore containing easy-to-float calcium and magnesium minerals.

[0047] like figure 2 As shown, a method for beneficiation of copper-cobalt ore containing easy-floating calcium-magnesium minerals is used for beneficiation of copper-cobalt ores containing easy-floating calcium-magnesium minerals. Specifically, the following ...

Embodiment 2

[0055] A raw ore containing copper-cobalt ore, an easy-to-float calcium-magnesium mineral, contains 1.28% copper and 0.52% cobalt, and the copper-containing minerals in the raw ore are mainly chalcopyrite, chalcocite, copper blue, blue chalcocite, Tetrahedrite, sulfur copper cobalt ore, malachite, pyrite, etc., the gangue minerals in the raw ore are mainly quartz, feldspar, dolomite, mica, chlorite, talc, serpentine, apatite, etc., the raw ore The total amount of calcium and magnesium minerals contained in the ore accounts for about 42% of the total weight of the original ore.

[0056] like figure 2 As shown, a method for beneficiation of copper-cobalt ore containing easy-floating calcium-magnesium minerals is used for beneficiation of copper-cobalt ores containing easy-floating calcium-magnesium minerals. Specifically, the following steps may be included:

[0057] Step B1. Perform wet grinding on the raw ore containing copper-cobalt ore, which is an easy-to-float calcium-ma...

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Abstract

The invention discloses a mineral separation method for copper-cobalt ore containing easy-to-float calcium magnesium minerals. Raw ore of copper-cobalt ore containing easy-to-float calcium magnesium minerals is ground, during ore grinding, a pH regulator is added, and therefore raw ore pulp with the pH value being 8-11 is manufactured; a copper-cobalt mineral regulator, a copper-cobalt mineral collecting agent and a foaming agent are sequentially added into the raw ore pulp, copper-cobalt roughing is performed one to three times, and copper-cobalt scavenging is performed one to three times, sothat copper-cobalt rough concentrate is obtained; the copper-cobalt rough concentrate is ground again, a calcium magnesium mineral inhibitor is added into a grinder for performing regrinding, then, the pH regulator is added into reground ore pulp, the pH value of the reground ore pulp is adjusted to 5-7, the copper-cobalt mineral collecting agent is added, selection is performed two to three times, and fine scavenging is performed for two to three times, so that copper-cobalt concentrate is obtained. Easy-to-float calcium magnesium minerals in copper-cobalt ore can be effectively restrained,the gangue content in the copper-cobalt concentrate is lowered, and the copper-cobalt recycling rate can be increased while the copper-cobalt concentrate grade is ensured.

Description

technical field [0001] The invention relates to the technical field of copper-cobalt ore beneficiation, in particular to a beneficiation method of copper-cobalt ore containing easily floating calcium and magnesium minerals. Background technique [0002] Affected by ore genesis, copper-cobalt ore in some areas contains more calcium-magnesium minerals such as talc, serpentine, pyroxene, hornblende, chlorite, dolomite, olivine, etc., and these calcium-magnesium minerals have relatively Strong hydrophobicity and natural floatability, so during the flotation process of this type of copper-cobalt ore, these calcium-magnesium minerals will be enriched in the flotation concentrate along with the target minerals (copper minerals, cobalt minerals), If not effectively suppressed, these calcium-magnesium minerals will significantly affect the grade of copper concentrate, resulting in excessive calcium and magnesium content in the concentrate, which will seriously affect sales. In addit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B9/00B03B1/00B03D1/002B03D1/008B03D1/014B03D101/02B03D101/04B03D101/06B03D103/02
CPCB03B1/00B03B9/00B03D1/002B03D1/008B03D1/014B03D2201/007B03D2201/02B03D2201/04B03D2201/06B03D2203/02
Inventor 王立刚胡志强李成必吴熙群叶岳华陈旭波朴永超田祎兰李俊旺
Owner BEIJING MINING & METALLURGICAL TECH GRP CO LTD
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