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Separating flotation method of low-grade complex lead-antimony-zinc

A low-grade, lead-antimony-zinc technology, applied in flotation, solid separation, wet separation, etc., can solve problems that do not involve separation technology solutions, and achieve the goal of expanding resource utilization, improving economic benefits, and improving operating efficiency Effect

Active Publication Date: 2011-04-27
广西华锡矿业有限公司铜坑矿业分公司 +1
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Problems solved by technology

[0049] The above-mentioned documents have studied the flotation separation technology or process of lead, antimony and zinc from different angles, especially in the research of sphalerite, galena, and stibnite, and have achieved good results, but they have not involved the raw ore containing lead + antimony equal to Or less than 0.35%, zinc equal to or less than 1.8% Separation technology scheme for low-grade complex ores such as brittle pyrosite and sphalerite

Method used

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Embodiment

[0075] The present invention first performs mixed flotation on sulfide minerals containing lead + antimony 0.35% and zinc 1.8%, and then washes the produced foamed lead-antimony-zinc-sulfur mixed concentrate without adding any chemicals and only adding 4t / t The clear water is used in the thickener and classifier to remove the influence of excess chemicals, slime, and some impurities on the flotation, and the impurities and overflow are discarded as tailings; the surface pollution of the ore particles is cleaned again by the sand settling machine, Create fresh surface and create conditions for the action of chemicals; the ore pulp after grinding enters the roughing of lead and antimony with a concentration of 35%, adding 0.2Kg / t ethyl disulfide nitrogen, 0.15Kg / t zinc sulfate, and 0.1Kg / t sodium cyanide , 2.5Kg / t lime and other beneficiation agents, the output contains 2-6% lead and antimony, and the recovery rate of the operation is greater than 90%. The lead-antimony foam conc...

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Abstract

The invention relates to a novel flotation method of lead-antimony-zinc sulphide ores, particularly for selecting low-grade complex refractory lead-antimony-zinc sulphide ores. A method of ore selecting and washing is adopted, which combines washing and selection and eliminates interference of unfavorable factors such as harmful ions, drugs, slurry and the like on the selection of the low-grade lead-antimony-zinc so as to effectively improve the ore selection technical economical indexes of low-grade lead-antimony-zinc sulphide ores. The method has great significance on the improvement of utilization rate of ore resources and effective recovery of old, incomplete and waste ore resources and secondary resources, imposes important influence on the ore selection area suffering increasing insufficiency of ore resources, and is suitable for floating recovery of low-grade non-ferrous metals such as lead, non-ferrous metal, zinc and molybdenum.

Description

technical field [0001] The invention belongs to the technical field of ore dressing, and relates to a method for separation and flotation of low-grade complex lead, antimony, zinc and sulfur. Background technique [0002] my country is rich in lead, antimony and zinc mineral resources. With the continuous depletion of resources, the high-grade, easy-to-mining and easy-to-select ore raw materials containing lead + antimony and zinc respectively greater than 10% and 12% have been exhausted, while lead + antimony Antimony and zinc are equal to or less than 0.35% and 1.8% respectively, low-grade, hard-to-mine, high-impurity iron, copper, sulfur, arsenic, complex mineral components, surrounding rocks, ore pillars, and old tailings that are difficult to sort Secondary resources have gradually become an important source of raw materials for the lead-antimony-zinc beneficiation industry. Therefore, the development of low-grade, complex and refractory lead-antimony-zinc ore flotation ...

Claims

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Application Information

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IPC IPC(8): B03B7/00B03B1/00B03D1/018B03D103/02
Inventor 吴伯增陈建明黄承波梁增永王万忠杨林院吴传坤姚学建韦明
Owner 广西华锡矿业有限公司铜坑矿业分公司
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