Photodegradable light-sensitive molecular sulfide ore inhibitor as well as preparation method and application thereof

A technology of small molecule inhibitor and photodegrader, applied in solid separation, flotation and other directions, can solve problems such as environmental pollution, and achieve the effects of low cost, good photodegradation performance and good stability

Active Publication Date: 2019-09-10
BEIJING MINING & METALLURGICAL TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of environmental pollution caused by the discharge of existing inhibitors to the environment, the present invention provides a photodegradable photosensitive molecular sulfide ore inhibitor, which uses light to realize the degradation treatment of the inhibitor, which can not only realize the efficient separation of sulfide ore, but also It can effectively reduce the residue of inhibitors in mineral processing wastewater, and is safe to use, low in toxicity and environmentally friendly

Method used

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  • Photodegradable light-sensitive molecular sulfide ore inhibitor as well as preparation method and application thereof
  • Photodegradable light-sensitive molecular sulfide ore inhibitor as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044]In a 500ml three-neck flask, add 200g of water and 53g of sodium hydroxide in turn, stir to dissolve, continue to stir until the temperature is below 35°C, add 104g of gallic acid, and stir for 30min until dissolved. Raise the temperature of the above reaction solution to 40°C, add 49g of carbon disulfide, control the reaction temperature at 45-50°C, and continue the reaction for 5 hours; Agent diethyl dithiocarbamate ferric, stirred for 1 hour to obtain an orange-red aqueous solution, which is a photodegradable photosensitive molecular sulfide mineral inhibitor.

Embodiment 2

[0046] In a 500ml three-neck flask, add 180g of water and 71g of sodium hydroxide in sequence, stir to dissolve, continue to stir until the temperature is below 35°C, add 78g of citric acid, and stir for 40min until dissolved. Raise the temperature of the above reaction solution to 45°C, add 35g of carbon disulfide, control the reaction temperature at 45-55°C, and continue the reaction for 4 hours; Add 3.5g of photodegradant ferric dibutyldithiocarbamate, stir for 2h, let stand for 12h, filter to remove trace precipitate at the bottom, take the supernatant to obtain an orange-red aqueous solution, which is the photodegradable photosensitive molecular sulfide inhibitor.

Embodiment 3

[0048] In a 500ml three-necked flask, add 168g of water and 122g of polyacrylamide in turn, stir to dissolve, gradually add 9.5g of NaOH, continue stirring to keep the temperature below 30°C. After fully dissolving, 20g of carbon disulfide was added dropwise, and the temperature was raised step by step. Raise the temperature to 35°C, keep it for 1h, continue to raise the temperature to 45°C, keep it for 2h, and finally raise the temperature to 65°C, and keep it for 1h. After the reaction solution is placed and cooled to below 30°C, it will be a sulfide mineral inhibitor; then add 10.5g of photodegradant ferric dibutyl dithiocarbamate to it, stir for 3 hours, let it stand for 12 hours, and filter to remove the trace precipitate at the bottom. The supernatant was taken to obtain an orange-yellow aqueous solution, which was the photodegradable photosensitive molecular sulfide inhibitor.

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Abstract

The invention relates to the technical field of non-ferrous metal beneficiation and in particular relates to a photodegradable light-sensitive molecular sulfide ore inhibitor as well as a preparationmethod and application thereof. The photodegradable light-sensitive molecular sulfide ore inhibitor disclosed by the invention comprises a sulfide ore inhibitor and a photodegradable agent. Degradation of the inhibitor is realized by utilizing illumination, high-efficiency separation of the sulfide ore can be realized, residues of the inhibitor in beneficiation wastewater can also be effectively reduced, and the photodegradable light-sensitive molecular sulfide ore inhibitor is safe to use, low in toxicity and environment-friendly.

Description

technical field [0001] The invention relates to the technical field of non-ferrous metal beneficiation, in particular to a photodegradable photosensitive molecular sulfide ore inhibitor. Background technique [0002] Although the reserves of mineral resources are abundant, some ores are of low grade, and various minerals are closely symbiotic, so it is difficult to sort them. With the development of the economy, the demand for resources is increasing day by day, the polymetallic sulfide ore ore that is easy to mine and select is almost exhausted, and the available resources are becoming poorer, thinner and more complicated. The separation of metal copper, lead, zinc, molybdenum and sulfur It has become one of the most critical technologies in the beneficiation of polymetallic sulfide ores. The difficulty in the treatment of such ores lies in how to effectively separate and recover valuable metals to achieve comprehensive utilization of resources, and high-efficiency inhibit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/018B03D101/06B03D103/02B03D101/02
CPCB03D1/018B03D2201/007B03D2201/02B03D2201/06B03D2203/02
Inventor 吴桂叶纪爱亮刘崇峻卢烁十朱阳戈刘慧南何伟李建伟刘龙利
Owner BEIJING MINING & METALLURGICAL TECH GRP CO LTD
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