Combined collecting agent and beneficiation method for recovering copper, lead and silver from copper lead zinc and silver polymetallic ore

A technology combining collectors and beneficiation methods, which is applied in flotation, solid separation, etc., can solve the problems of easy calcium accumulation in pipelines and filters, low recovery rate of associated gold and silver, and sticky flotation foam, etc., and achieves good results. Application prospects, safe and stable use, and efficient recycling effects

Active Publication Date: 2020-04-21
BEIJING MINING & METALLURGICAL TECH GRP CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a kind of beneficiation method for recovering copper-lead-silver from high-sulfur, high-arsenic copper-lead-zinc-silver polymetallic ore under the condition of combined collector and low alkalinity, which is not only effective It solves the problem of low recovery rate of associated gold and silver, sticky flotation foam, low concentrate grade, and low recovery rate of associated gold and silver caused by excessive lime dosage (pH value is too high) when the traditional high-alkali method is used to treat high-sulfur, high-arsenic, copper, lead, zinc, and silver polymetallic ores. Slurry pipelines and filters are prone to problems such as calcium formation and blockage, and can efficiently recover copper, lead, and silver minerals in high-sulfur, high-arsenic copper-lead-zinc-silver polymetallic ores. Less dosage, low pulp alkalinity, environment-friendly and good application prospects

Method used

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  • Combined collecting agent and beneficiation method for recovering copper, lead and silver from copper lead zinc and silver polymetallic ore

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Embodiment approach

[0035] (1) The mass percent of copper is 0.10%~0.25% in the raw ore ore of high-sulfur high-arsenic copper-lead-zinc-silver polymetallic ore of the present invention, and the mass percent of lead is 0.50%~1.20%, and the mass percent of zinc is 3.00% % to 4.50%, the mass percentage of silver is 0.009% to 0.013%, the mass percentage of sulfur is 14.00% to 20.00%, and the mass percentage of arsenic is 2.50% to 3.50%.

[0036] (2) The "low alkalinity" mentioned in the present invention refers to the pulp pH value of 8.0 to 9.5 during the beneficiation process of recovering copper, lead and silver from high-sulfur and high-arsenic copper-lead-zinc-silver polymetallic ore.

[0037](3) In step 1, the addition amount of the combination regulator is 400-700g / t, for example: it can be 400g / t, 450g / t, 500g / t, 550g / t, 600g / t, 650g / t Or 700g / t, and the specific point values ​​between the above values, due to space limitations and for the sake of brevity, the present invention will not list...

Embodiment 1

[0068] The grade of copper in a copper-lead-zinc-silver polymetallic mine in Inner Mongolia is 0.25%, the grade of lead is 1.14%, the grade of silver is 118.14g / t, the grade of sulfur is 14.50%, and the grade of arsenic is 2.54%. The copper minerals in this ore are mainly chalcopyrite, the lead minerals are galena, the zinc minerals are sphalerite, the silver minerals are mainly argentite, and other metal sulfides are mainly pyrrhotite and arsenopyrite. Another small amount of pyrite. The gangue minerals are mainly quartz and muscovite, and a small amount of biotite, chlorite, kaolinite and fluorite.

[0069] like figure 1 As shown, a mineral processing method for recovering copper, lead, and silver from high-sulfur, high-arsenic copper-lead-zinc-silver polymetallic ore under low alkalinity conditions is used to process the above-mentioned copper-lead-zinc-silver polymetallic ore in Inner Mongolia, which can include the following step:

[0070] Step 1. Add a combination reg...

Embodiment 2

[0077] The grade of copper in a copper-lead-zinc-silver polymetallic mine in Xinjiang is 0.18%, the grade of lead is 0.91%, the grade of silver is 98.56g / t, the grade of sulfur is 17.32%, and the grade of arsenic is 3.06%. The copper minerals in this ore are mainly chalcopyrite, the lead minerals are galena, the zinc minerals are sphalerite, the silver minerals are mainly argentite, and other metal sulfides are mainly pyrite and arsenopyrite. There is a small amount of pyrrhotite. Gangue minerals are mainly quartz, chlorite, kaolinite and fluorite.

[0078] A mineral processing method for recovering copper, lead, and silver from high-sulfur, high-arsenic copper-lead-zinc-silver polymetallic ores under low alkalinity conditions is used to process the above-mentioned copper-lead-zinc-silver polymetallic ore in Xinjiang, which may include the following steps:

[0079] Step 1. Add a combination regulator to the raw ore of the above-mentioned copper-lead-zinc-silver polymetallic o...

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Abstract

The invention discloses a combined collecting agent and a beneficiation method for recovering copper, lead and silver from copper lead zinc and silver polymetallic ore. The combined collecting agent is prepared by mixing dianilinodithiophosphoric acid, sodium carbonate and ethyl thio carbamate in a mass ratio of (3.0 to 5.0):(2.0 to 3.0):(1.0 to 2.0). The beneficiation method comprises the steps that a combined regulator is added into raw ore for grinding to prepare raw ore slurry; zinc sulfate, sodium sulfite, the combined collecting agent and terpineol oil are added into the raw ore slurry in turn for rough separation to obtain copper-lead mixed coarse concentrate; the copper-lead mixed coarse concentrate is subjected to thickening and dewatering, and then the combined regulator is addedfor grinding to prepare regrinding slurry; and the zinc sulfate, the sodium sulfite, the combined collecting agent and the terpineol oil are added into the regrinding slurry in turn, then fine separation is conducted, and thus copper-lead-silver mixed concentrate is obtained. According to the combined collecting agent and the beneficiation method for recovering the copper, the lead and the silverfrom the copper lead zinc and silver polymetallic ore, copper lead silver mineral in the high sulfur high arsenic copper lead zinc and silver polymetallic ore can be efficiently recovered.

Description

technical field [0001] The invention relates to the technical field of mineral processing, in particular to a combined collector and a mineral processing method for recovering copper, lead and silver from high-sulfur, high-arsenic copper-lead-zinc-silver polymetallic ores under low alkalinity conditions. Background technique [0002] The ore structure of the copper-lead-zinc-silver polymetallic ore is complex, and the minerals are symbiotic, intersected or wrapped with each other, and the embedded particle size is fine. When dealing with copper-lead-zinc-silver polymetallic ores at home and abroad, the technological process of "copper-lead mixed flotation-copper-lead separation-copper-lead mixed floating tailings for zinc extraction" is usually adopted. For pyrite, pyrrhotite, arsenopyrite and other high-sulfur, high-arsenic copper-lead-zinc-silver polymetallic ores with high mineral content, it is generally necessary to add a large amount of lime to strengthen the suppressi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B9/00B03D1/00B03D1/018B03D101/02B03D103/04
CPCB03B9/00B03D1/00B03D1/018B03D2201/02B03D2203/04
Inventor 苏建芳肖巧斌王中明谭欣刘方刘书杰凌石生万丽张云海赵晨
Owner BEIJING MINING & METALLURGICAL TECH GRP CO LTD
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