Beneficiation method of high-sulfur lead zinc ores under high-temperature environment

A beneficiation method and high-temperature environment technology, applied in flotation, solid separation and other directions, can solve problems such as lead and zinc flotation interference, and achieve the effects of stable process, strong adaptability to ore properties, and efficient beneficiation and smelting process.

Active Publication Date: 2019-01-11
BEIJING MINING & METALLURGICAL TECH GRP CO LTD
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Problems solved by technology

[0005] In order to solve the problem in the prior art that high-sulfur minerals seriously interfere with the flotation of lead and zinc in a high-temperature environment, the present invention provides a beneficiation method for high-sulfur lead-zinc ore in a high-temperature environment, which can realize high-sulfur minerals in a high-temperature environment. Efficient recovery of lead-zinc ore, effectively ensuring the technical indicators of the beneficiation process of lead and zinc minerals

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  • Beneficiation method of high-sulfur lead zinc ores under high-temperature environment

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Embodiment 1

[0052]The annual temperature in a high-sulfur lead-zinc mine area is above 35°C, and the temperature in some months is above 45°C; affected by factors such as heat dissipation of the mill, flotation machine, and sand pump, the temperature of the ore pulp entering the flotation after grinding will decrease. At 45-57°C. The raw ore of this high-sulfur lead-zinc ore contains 1.72% lead, 8.42% zinc and 22.54% sulfur. The process mineralogy research of this high-sulfur lead-zinc ore shows that the lead-containing minerals in this ore are mainly galena, followed by a small amount of white leadite; Zinc ore, etc.; sulfur-containing minerals are mainly marcasite and pyrite, of which marcasite accounts for 28% of the total mineral composition; gangue minerals are mainly quartz, calcite, mica, kaolin, feldspar, etc.; it is a typical Marcasite-type high-sulfur lead-zinc ores in a high-temperature environment.

[0053] Such as figure 1 Shown, a kind of beneficiation method of high-sulf...

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Abstract

The invention discloses a beneficiation method of high-sulfur lead zinc ores under high-temperature environment. After raw ore pulp with a pH value above 12 is prepared, the lead roughing and the leadscavenging are performed to obtain lead roughing concentrates and lead scavenging tailing pulp; zinc sulfur inhibitors are added in the lead roughing concentrates for lead refining to obtain lead concentrates; the zinc quick flotation, the zinc roughing and the zinc scavenging are performed on the lead scavenging tailing pulp to obtain zinc quick flotation roughing concentrates and zinc roughingcrude concentrates; the zinc roughing crude concentrates are grinded again; then, the zinc sulfur separation roughing and the zinc sulfur separation scavenging are performed; and after the zinc quickflotation roughing concentrates and the zinc sulfur separation flotation roughing concentrates are merged, high-sulfur inhibitors are added for refining zinc sulfur separation zinc to obtain zinc concentrates. The pH value of the pulp is always kept above 13 in each flotation procedure. The beneficiation method can realize efficient recovery of the high-sulfur lead zinc ores under high-temperatureenvironment, and effectively guarantees the beneficiation process technical index of lead and zinc minerals.

Description

technical field [0001] The invention relates to the technical field of beneficiation of high-sulfur lead-zinc ore, in particular to a beneficiation method of high-sulfur lead-zinc ore in a high-temperature environment (the high-temperature environment refers to a beneficiation pulp temperature above 40° C.). Background technique [0002] Affected by factors such as different regions or environments, some areas are above 35°C all year round, and even some areas are above 40-60°C for a long time in a year. Since most of the dressing plants are built outdoors or in open spaces, the temperature change at the location of the dressing plant will directly affect the temperature change of the dressing pulp. The temperature of conventional sulfide ore beneficiation pulp is generally 15-35°C; when the temperature of sulfide ore beneficiation pulp exceeds 40°C (or even reaches 60°C), this high temperature environment will have a serious impact on the beneficiation index of sulfide, spe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/00B03D1/02
CPCB03D1/00B03D1/02
Inventor 王立刚李成必田祎兰胡志强吴熙群叶岳华陈旭波朴永超李俊旺
Owner BEIJING MINING & METALLURGICAL TECH GRP CO LTD
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