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Pyrite flotation processing method based on carbon dioxide atmosphere

A carbon dioxide and process method technology, applied in flotation, solid separation and other directions, can solve problems affecting production costs and economic benefits of enterprises, environmental governance difficulties, tailings water pollution, etc., to improve air pollution and tailings water pollution problems. , Improve the beneficiation index, reduce the effect of sulfur content

Active Publication Date: 2019-10-25
GUANGDONG INST OF MINERAL APPL
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In beneficiation production, the flotation process requires the use of a large amount of chemicals, which also brings about air pollution and tailings water pollution. great difficulty and heavy burden

Method used

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  • Pyrite flotation processing method based on carbon dioxide atmosphere
  • Pyrite flotation processing method based on carbon dioxide atmosphere
  • Pyrite flotation processing method based on carbon dioxide atmosphere

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Embodiment Construction

[0021] figure 1 and figure 2 Shown is an embodiment of a pyrite flotation process based on a carbon dioxide atmosphere in the present invention. Such as figure 1 As shown, a gas-tight cover 2 is arranged in the outer space of the self-priming flotation device 1 (flotation machine or flotation column) to form a flotation sealed cabin 3, CO 2 The compensation gas source 4 is connected to the flotation sealing chamber 3 , and the gas sealing cover 2 is provided with a transparent observation window 5 corresponding to the flotation machine 1 .

[0022] The air pressure in the flotation sealed cabin 3 is 1 atmospheric pressure so that the air pressure inside and outside the flotation sealed cabin is the same, and the purity of carbon dioxide is not less than 98.0% (can be monitored by a gas online monitor); 2 Compensation gas source 4 adopts liquefied carbon dioxide, uses a pressure reducing valve and a flow meter, and uses a pulp flow meter at a rate of 0.125Kg / m 3 Compensate...

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Abstract

The invention discloses a pyrite flotation processing method based on a carbon dioxide atmosphere. According to the invention, a gas seal cover is arranged at the external space of a self-suction typeflotation device to form a flotation sealed cabin; a CO2 compensation gas source is connected into the flotation sealed cabin; the gas pressure in the flotation sealed cabin is 1 barometric pressure,so internal and external gas pressures of the flotation sealed cabin are the same, and the purity of carbon dioxide is no less than 98.0%; and pyrite is subjected to flotation in the flotation sealedcabin after grinding, and the usage amount of a collector is 100 to 115 g / t. According to the invention, the carbon dioxide replaces air as a gas source and an atmosphere for froth flotation, so thedecrease of the usage amount of a flotation chemical agent is realized; meanwhile, the flotation indexes of the pyrite are significantly increased; and an important significance on economic benefit ofa mineral processing enterprise and treatment of environmental pollution is achieved.

Description

technical field [0001] The invention relates to the technical field of mineral processing, in particular to a pyrite flotation process. Background technique [0002] With the rapid development of productivity levels and social activities, environmental protection has become a global concern and emphasis. How to reduce the pollution and harm to the environment is the main task that enterprises need to face in production and people's life. [0003] In mineral processing production, the flotation process requires the use of a large amount of chemicals, which also brings about air pollution and tailings water pollution. great difficulties and heavy burdens. Therefore, how to effectively reduce the dosage of flotation reagents and at the same time realize the improvement of mineral processing indicators is of great significance to the economic benefits of mineral processing enterprises and the control and protection of environmental pollution. Contents of the invention [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/02B03D103/02
CPCB03D1/025B03D2203/02
Inventor 黄霞光罗国清施卓雄卢可可邓晓锋李杨林海
Owner GUANGDONG INST OF MINERAL APPL