Coal flotation agent and production method thereof
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A flotation agent and coal technology, applied in flotation, solid separation, etc., can solve the problems of poor coal quality selectivity, low extraction rate of clean coal, high price, etc. Effects that are easy to control
Inactive Publication Date: 2009-05-13
吉海峰
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Abstract
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Problems solved by technology
At present, the flotation agent used in domestic flotation coal is generally prepared from expensive important chemical raw materials such as 2-octanol or cyclohexanol. Due to its high price, high consumption, and low extraction rate of clean coal, the The selectivity of coal quality is poor, so it is limited in use
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Embodiment 1
[0019] Coal flotation agent of the present invention is made of the following components in parts by weight:
[0020] 60-80 parts of regular third-line oil
[0021] Aromatic hydrocarbons 10-30 parts
[0022] Kerosene 10-15 parts
[0023] Alkylphenol polyoxyethylene ether 0.05~1 part
[0024] The common third-line oil is an intermediate product of petroleum refining, and aromatic hydrocarbons are C 8 ~C 12 aromatics.
[0025] The preparation method is as follows: mixing aromatic hydrocarbons, kerosene, and alkylphenol polyoxyethylene ether in proportion, stirring at room temperature for 20-40 minutes, adding regular third line oil, and stirring for 15-30 minutes to obtain the finished product.
Embodiment 2
[0027] Coal flotation agent of the present invention is made of the following components in parts by weight:
[0028] Changsanxian oil 60 parts
[0029] C 8 ~C 12 Aromatics 10 parts
[0030] Kerosene 10 parts
[0031] Alkylphenol polyoxyethylene ether 0.05 parts
[0032] Its preparation method is with embodiment 1.
Embodiment 3
[0034] Coal flotation agent of the present invention is made of the following components in parts by weight:
[0035] Changsanxian oil 80 parts
[0036] C 8 ~C 12 30 parts of aromatics
[0037] Kerosene 15 parts
[0038] Alkylphenol polyoxyethylene ether 1 part
[0039] Its preparation method is with embodiment 1.
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Abstract
The invention relates to a coal flotation agent and a preparation method thereof. The product can be obtained through the following steps: mixing 10 to 30 portions of aromatic, 10 to 15 portions of kerosene, 0.05 to 1 portions of alkyl phenol polyoxyethylene ether in proportion; stirring for 20 to 40 minutes at a normal temperature; further adding 60 to 80 portions of gas-oil; and further stirring for 15 to 30 minutes to obtain a finished product. The coal flotation agent of the invention has the advantages of excellent flotation performance, low usage, high clean coal yield, low consumption, easy purchase of raw materials and low cost.
Description
technical field [0001] The invention relates to a coal flotation agent. Background technique [0002] For the flotation of pulverized coal with different coal quality and particle size, the surface of coal and gangue impurities has different wettability to water, and the flotation agent is added to the coal slurry, and the air is blown in under the condition of stirring. , the coal particles are attached to the foam formed by the agent, and float to the surface of the water, and the foam is scraped off by the scraper to achieve the purpose of separating coal and gangue impurities, and obtain clean coal products. At present, the flotation agent used in the domestic flotation of coal is generally prepared from expensive important chemical raw materials such as 2-octanol or cyclohexanol. Due to its high price, high consumption, and low extraction rate of clean coal, the The selectivity of coal quality is poor, so it is limited in use. Contents of the invention [0003] The ...
Claims
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Application Information
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