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Method for preparing emulsified residual oil by using cyclohexanone wastewater

A technology for cyclohexanone wastewater and residual oil, which is applied in chemical instruments and methods, natural water treatment, multi-stage water/sewage treatment, etc. and social benefits, the effect of reducing environmental pollution

Active Publication Date: 2014-03-26
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned patent is to use clear water to prepare emulsified residue, but the use of chemical wastewater to prepare emulsified residue has not been reported

Method used

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  • Method for preparing emulsified residual oil by using cyclohexanone wastewater

Examples

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Embodiment 1

[0035] Example 1: Take 20 g of cyclohexanone wastewater (pH 9, COD 5000 mg / L) into a three-necked flask, add 0.3 g of alkylphenol polyoxyethylene ether (OP-10) and 0.005 g of polyacrylamide (1630s) Obtain the aqueous solution of emulsifier, stir to dissolve, heat to 80 o C insulation. Weigh 80g of residual oil and heat to 120 o C to melt, then at 80 o Keep warm at C. Under the condition of high-speed stirring, the aqueous solution of the emulsifier is evenly added to the residual oil, and stirred for 15 minutes to obtain the emulsified residual oil. The prepared emulsified residue has a viscosity of 600mPa·S and can be stored stably for more than 3 days at room temperature. For the preparation process, see figure 1 .

Embodiment 2

[0036] Example 2: Take 30 g of cyclohexanone wastewater (pH 10, COD 8000 mg / L) into a three-necked bottle, add 0.1 g of alkylphenol polyoxyethylene ether (OP-10), 0.2 g of dodecyl Sodium sulfate and 0.05g of hydroxymethyl cellulose to obtain an aqueous solution of an emulsifier, stir to dissolve, and heat to 75 o C insulation. Weigh 70g of residual oil and heat to 120 o C to melt, then at 75 o Keep warm at C. Under the condition of high-speed stirring, the aqueous solution of the emulsifier is evenly added to the residual oil, and the emulsified residual oil can be obtained by stirring for 5 minutes. The prepared emulsified residue has a viscosity of 800mPa·S and can be stored stably for more than 3 days at room temperature.

Embodiment 3

[0037] Example 3: Take 10 g of cyclohexanone wastewater (pH 11, COD 20000 mg / L) into a three-necked bottle, add 5 g of alkylphenol polyoxyethylene ether (OP-10) and 0.05 g of polyvinyl alcohol Obtain an aqueous solution of emulsifier, stir to dissolve, heat to 70 o C insulation. Weigh 90g of residual oil and heat to 130 o C to melt, then at 70 o Keep warm at C. Under the condition of high-speed stirring, the aqueous solution of the emulsifier is evenly added to the residual oil, and the emulsified residual oil can be obtained by stirring for 10 minutes. The prepared emulsified residue has a viscosity of 700mPa·S and can be stored stably for more than 3 days at room temperature.

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Abstract

The invention discloses a method for preparing emulsified residual oil by using cyclohexanone wastewater, relates to the field of a preparation method of an oil emulsion, and particularly relates to a method for preparing emulsified residual oil by using cyclohexanone wastewater. The method comprises the following steps: adding an emulsifier and a stabilizer to the cyclohexanone wastewater; stirring and dissolving the obtained water solution and keeping warm; heating the residual oil to melt; evenly adding the water solution to the molten residual oil; stirring to obtain the emulsified residual oil. The method disclosed by the invention has the advantages that the wastewater is utilized as raw water for preparing the emulsified residual oil, so that use of clean water is saved; meanwhile, the wastewater is used as a raw material, so as to play a role of transforming the waste into treasure.

Description

Technical field: [0001] The invention relates to the field of preparation methods of petroleum emulsions, in particular to a method for preparing emulsified residue by using cyclohexanone wastewater. Background technique: [0002] The chemical industry is a traditional pillar industry in my country, and the chemical raw materials and products produced are widely used in various fields. The chemical industry is also a highly polluting industry. The wastewater produced often contains high concentrations of organic pollutants. It is difficult to achieve standard discharge through ordinary wastewater treatment methods such as biochemical treatment and membrane treatment. [0003] Most of the wastewater produced by the cyclohexanone plant is refractory organic pollutants. The wastewater has the characteristics of large water volume, deep color of organic pollutants, complex components, and poor degradability. It is a difficult-to-treat industrial wastewater. Take the industrial ...

Claims

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Application Information

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IPC IPC(8): C08J3/03C08L91/00C08L95/00C02F9/10C02F103/36
Inventor 李正琪李昕阳卢姝
Owner CHINA PETROLEUM & CHEM CORP
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