Low-rank coal slime flotation collector compounded with ketone aldehyde ether and its preparation method and application

A coal slime flotation and collector technology, applied in flotation, solid separation and other directions, can solve the problems of increasing toxic and harmful components, easily endangering the ecological environment, and increasing industrial costs, so as to improve flotation efficiency and simplify flotation. process, the effect of reducing drug consumption
CN109201344BActive Publication Date: 2021-04-27CHINA SHENHUA ENERGY CO LTD +1
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA SHENHUA ENERGY CO LTD
Publication Date
2021-04-27

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Abstract

The invention provides a low-order coal slime flotation collector compounded with ketone aldehyde ether and its preparation method and application. The collector has simple composition and can be used as a low-rank coal slime flotation collector to complete conventional The economical and efficient sorting of flotation has the characteristics of small chemical consumption, low flotation cost and high sorting efficiency. The low-rank coal slime flotation collector of compound ketone aldehyde ether provided by the invention comprises each component of following mass percentage: C 10 -C 16 Hydrocarbon oil 60‑85%; C 5 -C 10 Ketone 5‑15%; C 5 -C 9 Aldehyde 5‑15%; C 4 -C 10 Ether 5‑15%.
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Description

technical field

[0001] The invention relates to the technical field of coal slime flotation, in particular to a low-rank coal slime flotation collector and its preparation method and application. Background technique

[0002] Low-rank coal is coal with a low degree of metamorphism, mainly including lignite, long-flame coal, weakly caking coal, non-caking coal, etc., accounting for more than 50% of my country's coal reserves. Among them, -0.5mm fine-grained coal is called low-rank coal slime, which has outstanding characteristics such as poor hydrophobicity, fine particle size, and large specific surface area. Flotation, as the most widely used method for separating fine-grained minerals, can effectively reduce ash and improve the quality of fine-grained coal slime, and increase its utilization value. However, conventional collectors (such as diesel oil, kerosene, etc.) used in the flotation of low-rank coal slime have problems such as high chemical consumption and high flot...

Claims

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