Preparation method of extracting agent for innocent treatment of industrial waste oil

A technology for harmless treatment of industrial waste oil, applied in chemical instruments and methods, petroleum industry, separation methods, etc., can solve problems such as unsatisfactory effects, and achieve the effect of enhancing the effect of oil-water separation

Inactive Publication Date: 2017-05-10
成都西南石大石油工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current technology is still unsatisfactory in the treatment of waste oil containing a large amount of water-in-oil colloids and tiny particles

Method used

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  • Preparation method of extracting agent for innocent treatment of industrial waste oil
  • Preparation method of extracting agent for innocent treatment of industrial waste oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Add 30 milliliters of N,N-dimethylformamide, 10 g of β-cyclodextrin and 7 g of 2-hydroxy-propanetricarboxylic acid successively to a three-necked flask connected with a stirring device, stir and react at 60°C for 20 hours, Cool and filter, wash the filter cake three times with acetone, and dry at 50°C for 24 hours to obtain 9.1 g of white solid powder of cyclodextrin-2-hydroxy-propanetricarboxylate.

[0019] Take 0.5g of cyclodextrin-2-hydroxyl-propylene tricarboxylate, 20g of n-hexane, 28g of n-octane, 38g of cyclohexane, 1.5g of ethanol and 0.1 water in a 250mL three-necked flask, 25 Stirring at ℃ for 15 minutes to prepare an extractant for harmless treatment of industrial waste oil, which is used to treat industrial waste oil produced by drilling tools or drilling machines.

Embodiment 2

[0021] Add 80ml of N,N-dimethylformamide, 12g of β-cyclodextrin and 9g of 2-hydroxy-propanetricarboxylic acid in sequence to a three-necked flask connected with a stirring device, stir and react at 90°C for 50 hours , cooled and filtered, the filter cake was washed 3 times with acetone, and dried at 50° C. for 24 hours to obtain 11.0 g of white solid powder of cyclodextrin-2-hydroxy-propanetricarboxylate.

[0022] Take 1.5g of cyclodextrin-2-hydroxyl-propylene tricarboxylate, 30g of n-hexane, 32g of n-octane, 45g of cyclohexane, 2.0g of ethanol and 1.0g of water in a 250mL three-necked flask, Stir at 30°C for 15 minutes to prepare an extractant for harmless treatment of industrial waste oil, which is used for industrial waste oil produced in product oil tanks.

Embodiment 3

[0024] Add 60 ml of N,N-dimethylformamide, 11.35 g of β-cyclodextrin, and 8 g of 2-hydroxy-propanetricarboxylic acid in sequence to a three-necked flask connected with a stirring device, stir and react at 80°C for 24 hours, cooled and filtered, the filter cake was washed 3 times with acetone, and dried at 50°C for 24 hours to obtain 10.8 g of cyclodextrin-2-hydroxyl-propylene tricarboxylate white solid powder.

[0025] Take 1g of cyclodextrin-2-hydroxyl-propylene tricarboxylate, 25g of n-hexane, 28.5g of n-octane, 43g of cyclohexane, 2g of ethanol and 0.5g of water in a 250mL three-necked flask for 30 Stir at ℃ for 15 minutes to prepare an extractant for harmless treatment of industrial waste oil. The extractant obtained by this formula is mainly suitable for industrial waste oil produced in various fields such as ship transportation and oil field operations.

[0026] Such as figure 1 , figure 2 As shown, after cyclodextrin-2-hydroxy-propanetricarboxylate enters the oil pha...

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Abstract

The invention discloses a preparation method of an extracting agent for innocent treatment of industrial waste oil. The preparation method comprises the following steps: sequentially adding 30-80ml preferably 60ml of N,N-dimethylfomamide, 10-12g preferably 11.35g of beta-cyclodextrin, and 7-9g preferably 8g of 2-hydroxy-propanetricarboxylic acid into a three-neck flask connected with a stirring device, stirring, performing a reflux reaction at 60-90 DEG C preferably 80 DEG C for 20-50 hours preferably 24 hours, cooling and filtering, washing filter cake for 3 times by using acetone, and drying at 50 DEG C for 24 hours to obtain 9.0-11.0g of cyclodextrin-2-hydroxy-propylene tricarboxylate white solid powder; and putting 0.5-1.5g of the prepared cyclodextrin-2-hydroxy-propylene tricarboxylate, 20-30g of n-hexane, 28-32g of n-octane, 38-45g of cyclohexane, 1.5-2.0g of ethanol and 0.1-1.0g of water into a 250mL three-neck flask, and stirring at 25-30 DEG C for 15 minutes to prepare the extracting agent for innocent treatment of the industrial waste oil. According to the preparation method disclosed by the invention, 0.5-1.5g of cyclodextrin-2-hydroxy-propylene tricarboxylate is introduced to improve the demulsification capability to a water-in-oil structure, and meanwhile, micro solid-phase particles in oil can be effectively avoided.

Description

technical field [0001] The invention relates to a preparation method of an extractant, in particular to a preparation method of an extractant for harmless treatment of industrial waste oil. Background technique [0002] With the rapid development of ocean transportation, mechanical processing, oil and gas development and other industries, industrial waste oil has become diversified. The waste oil containing solid fine particles, trace water and oxidized or acidified waste oil urgently needs to find an effective non-toxic oil due to emulsification problems. Hazardous treatment methods. At present, the methods for dealing with these industrial waste oils mainly include demulsification, centrifugation and extraction. Regardless of the method, the purpose is to regenerate the oil and the solids to meet the discharge standards. [0003] Because of the existence of water and oxidation products in industrial waste oil, its regeneration process becomes complicated. In the literat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D11/04C10G21/20
CPCB01D11/0492C10G21/14C10G21/16C10G21/20C10G2300/1007C10G2300/201
Inventor 邹长军杨帆柳高杰冯萱颐
Owner 成都西南石大石油工程技术有限公司
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