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Coal flotation agent and preparation method thereof

A flotation agent and coal technology, applied in flotation, solid separation, etc., can solve the problems of high cost, high content of oil, water, and solid three-phase impurities, complex process, etc., to achieve improved fluidity, easy dispersion, and improved The effect of capture efficiency

Inactive Publication Date: 2013-11-20
陕西延长石油矿业有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the treatment methods of oily sludge mainly include biological method, extraction method, hot washing method, etc., generally have the problems of complex process and high cost, and the processed three-phase impurities of oil, water and solid content are relatively large, and further research is needed deal with

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Add 0.03 kg of Span-80 and 0.01 kg of propylene glycol monoethyl ether to 10 kg of oily sludge, then add 10 kg of water, and disperse for 600 seconds at 3000 rpm to obtain a coal flotation agent.

Embodiment 2

[0022] This embodiment is the same as Example 1, except that the emulsifier is sodium dodecylbenzene sulfonate, sodium lauryl sulfate, sodium dioctyl succinate sulfonate, fatty alcohol polyoxyethylene Sodium ether sulfate or nonylphenol ethoxylate, or Span-80, sodium dodecylbenzene sulfonate, sodium lauryl sulfate, sodium dioctyl succinate sulfonate, fatty alcohol ethoxylates At least two of sodium sulfate and nonylphenol polyoxyethylene ether; the viscosity reducer is sodium lignosulfonate, tannin or sodium polyphosphate, or propylene glycol monoethyl ether, sodium lignosulfonate, tannin and at least two of sodium polyphosphate.

Embodiment 3

[0024] Add 0.05kg Span-80, 0.01kg sodium dodecylbenzenesulfonate, 0.01kg sodium dodecylsulfate, 0.01kg dioctyl succinic acid sodium sulfonate, 0.02kg fatty alcohol polysaccharide to 10kg oily sludge Sodium oxyethylene ether sulfate, 0.05kg nonylphenol polyoxyethylene ether, 0.1kg propylene glycol monoethyl ether, 0.2kg sodium lignosulfonate, 0.1kg tannin, 0.1kg sodium polyphosphate, 0.2kg secondary octanol, 0.2kg Cyclohexanol and 0.1kg pine alcohol oil, then add 40kg water, disperse for 600 seconds with 16000 rev / min, obtain coal flotation agent.

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PUM

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Abstract

The invention discloses a coal flotation agent. The coal flotation agent is prepared from the following materials in parts by weight: 100 parts of oil-containing sludge, 100-400 parts of water, 0.25-1.5 parts of emulsifying agent, 0.1-5 parts of viscosity reducer and 0-5 parts of foaming agent. Besides, the invention further discloses a preparation method of the coal flotation agent. The coal flotation agent disclosed by the invention adopts the oil-containing sludge as the materials, and is added with the emulsifying agent, the viscosity reducer, the foaming agent and water. The produced coal flotation agent is an emulsion type coal flotation agent, so that the flotation agent is easy to disperse in a water phase during a coal flotation process, and therefore, the collection efficiency is improved. The condensation point of the oil-containing sludge is higher, and the added pour point reducer can be used for lowering the condensation point of the oil-containing sludge, so that the oil-containing sludge is improved in mobility and convenient to disperse; besides a foaming effect and a foam stabilizing effect, the added foaming agent can be used for achieving the effect of a cosurfactant during a process of preparing the emulsion type coal flotation agent, and can be cooperated with the emulsifying agent to stabilize the emulsion; and the added water can be used for improving the proportion of a continuous phase, and therefore, the coal flotation agent is beneficial to preparing oil-in-water emulsion.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a coal flotation agent and a preparation method thereof. Background technique [0002] As an accompaniment to oil extraction, transportation, storage, and processing, oily sludge has a complex composition and a large volume. After being discharged, it not only occupies a large amount of cultivated land, but also easily causes serious pollution to soil, water, and air. In recent years, both at home and abroad are actively developing technologies for harmless treatment and resource utilization of oily sludge. At present, the treatment methods of oily sludge mainly include biological method, extraction method, hot washing method, etc., which generally have the problems of complex process and high cost, and the processed three-phase impurities of oil, water and solid content are relatively large, so further steps are needed deal with. [0003] Flotation is the...

Claims

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Application Information

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IPC IPC(8): B03D1/012B03D1/014B03D1/008B03D101/04
Inventor 刘建国贺拥军尹双良李天良孟庆宇郭晓斌李骥
Owner 陕西延长石油矿业有限责任公司
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