Treatment agent for lead-zinc flotation tailing wastewater based on chemical production

A technology for flotation tailings and chemical production, which is applied in the fields of metallurgical wastewater treatment, water/sewage treatment, water/sludge/sewage treatment, etc. The effect of removing suspended solids and precipitating heavy metal ions

Inactive Publication Date: 2018-08-21
ZHONGSHAN LVLANG ADDITIVES CO LTD
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  • Description
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Problems solved by technology

Nevertheless, some metal ions, suspended solids, organic and inorganic chemical decomposition substances, etc. remain in the mineral processing tailings solution, forming mineral processing tailings wastewater containing a large amount of harmful substances, and direct discharge will cause serious pollution to the environment. It also affects the lead-zinc beneficiation index. When the traditional method is used to treat this kind of wastewater, a variety of chemicals are used to remove harmful components respectively. Each drug has only a single effect, and two or more harmful components in the wastewater cannot be treated at the same time. removal, waste water treatment costs are high, and the process is complex

Method used

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Embodiment Construction

[0011] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0012] The invention provides a technical solution: a lead-zinc flotation tailings wastewater treatment agent based on chemical production, which is composed of the following raw materials: calcium carbonate, diesel oil, calcium hydroxide, sodium carbonate, potassium carbonate, non-ionic polyacrylamide , Zinc sulfate.

[0013] Calcining limestone raw material to generate lime and carbon dioxide, adding water to digest the lime to form milk of lime, and then introducing carbon dioxide to carbonize the milk of lime to form calcium carbonate precipitation, and finally dehydrating, drying and crushing to obtain calcium carbonate in the raw material.

[0014] Ammonia reacts with water and carbon dioxide to form a molecule of ammonium bicarbonate, then ...

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Abstract

The invention provides a treatment agent for lead-zinc flotation tailing wastewater based on chemical production. The treatment agent is prepared from the following raw materials: calcium carbonate, diesel oil, calcium hydroxide, sodium carbonate, potassium carbonate, non-ionic polyacrylamide and zinc sulfate. Compared with the prior art, the treatment agent has the following beneficial effects: the problems of large treatment difficulty, higher treatment cost and relatively complicated actual operation for metal wastewater are solved, multiple effects of quickly removing calcium, removing suspended matter, precipitating heavy metal ions and the like are achieved, and the treated wastewater meets GB 8978-1996 discharge standard.

Description

technical field [0001] The invention is a chemical production-based lead-zinc flotation tailings wastewater treatment agent, which belongs to the technical field of mineral processing. Background technique [0002] The world's lead-zinc resources are relatively rich, and lead-zinc ores can be divided into sulfide ores, mixed ores and oxidized ores according to the degree of oxidation. Among the lead-zinc ores in my country and the world, sulfide lead-zinc ores and mixed ores account for the vast majority, and sulfide lead-zinc ores The beneficiation method of mixed ore is mainly flotation method. A large amount of new water is consumed in the process of lead-zinc flotation. In order to effectively separate useful metals, a large amount of flotation agents need to be added to different operations. Collectors, foaming agents, organic and inorganic activators, inhibitors, dispersants, etc. These agents are mainly adsorbed in the concentrate, and other residual agents are transpor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/00C02F1/52C02F1/54C02F1/56C02F103/16
CPCC02F1/00C02F1/5236C02F1/54C02F1/56C02F2103/16
Inventor 孙公民李保卫孙栓
Owner ZHONGSHAN LVLANG ADDITIVES CO LTD
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