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Isoparaffin solvent oil recovery method

A technology for isoparaffin solvent oil and catalyst, which is used in chemical instruments and methods, catalysts for physical/chemical processes, and only multi-stage series refining process treatment.

Inactive Publication Date: 2014-02-12
上海永鸿实业集团化学科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] What the present invention is to solve is the problem of isoparaffin solvent oil recovery

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0034] The present invention reclaims the used catalyst preparation method of isoparaffin solvent as follows:

[0035] Add 500 milliliters of deionized water to 100 grams of molybdenum oxide, add 50 grams of 85% phosphoric acid, heat to dissolve, add 50 grams of copper carbonate to the solution, heat and stir to dissolve, then add alumina (activated alumina with a diameter of about 3 microns) Ball, specific surface area 170sqm / g, pore volume 0.8ml / g), after standing still overnight, transfer the solution into a round bottom flask, evaporate the water with a rotary evaporator, move the alumina ball into a high-temperature oven, and introduce oxygen Sintering is carried out under the condition of 100-500°C for 5 hours. The desired catalyst Mo-Cu-PO prepared 4 , BET / N2 specific surface area is 170m 2 / g.

Embodiment 2

[0037] The present invention reclaims the used catalyst preparation method of isoparaffin solvent as follows:

[0038] Add 500 milliliters of deionized water to 100 grams of molybdenum oxide, add 50 grams of 85% phosphoric acid, heat to dissolve, add 50 grams of copper carbonate to the solution, heat and stir to dissolve, then add alumina (activated alumina with a diameter of about 6 microns) Ball, specific surface area 170sqm / g, pore volume 0.8ml / g), after standing still overnight, transfer the solution into a round bottom flask, evaporate the water with a rotary evaporator, move the alumina ball into a high-temperature oven, and introduce oxygen Sintering is carried out under the condition of 100-500°C for 5 hours. The desired catalyst Mo-Cu-PO prepared 4 , BET / N2 specific surface area is 170m 2 / g.

Embodiment 3

[0040] step 1

[0041] 500g of Isopar solvent directly recovered from the factory, add 100ml of 30% mass concentration hydrogen peroxide aqueous solution, stir for 10h, separate the organic layer, wash the organic layer with 10% sodium carbonate solution, and dry the organic layer with a small amount of about 50 grams of sodium sulfate for 1 Hour.

[0042] step 2

[0043] The Mo-Cu-PO catalyst that above-mentioned embodiment prepares is this solvent treatment catalyst, and experimental operation is as follows: 50 centimeters are long, 1 inch diameter stainless steel vertical fixed reaction tubes are filled with 20 grams of above-mentioned catalysts, after step 1 is processed with pump The organic layer is slowly poured into this vertical fixed reaction tube, the flow rate is 10ml / min, the temperature of the reaction tube wall is heated to 150°C, and the product of catalytic reaction treatment slipping out is collected.

[0044] step 3

[0045] Long 50 centimeters, 500...

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Abstract

The present invention provides a catalyst and a method for recovering isoparaffin solvent oil. The method comprises: 1, carrying out oxidation on isoparaffin solvent oil waste liquid, and separating to obtain an organic layer; 2, at a temperature of 140-170 DEG C, adopting a Mo-Cu-PO4 catalyst to treat the separated organic layer; 3, absorbing the treated liquid in the step 2 by using active carbon, and collecting the effusing crude isoparaffin solvent oil; and 4, carrying out rectification on the collected crude isoparaffin solvent oil, and collecting fraction under a pressure of 5-10 mmHg at a temperature of 45-150 DEG C. According to the present invention, the isoparaffin solvent oil can be effectively recovered, and various indexes of the recovered solvent oil do not show difference compared with various indexes of the new product with detection by the relevant analysis agency so as to achieve the resource reuse purpose.

Description

Technical field [0001] The invention involves a recycling method of an organic solvent, especially the recycling method of a isoportane solvent oil. Background technique [0002] Solvent oil is one of the five major oil products, which is closely related to life and production. Its application field is also expanding.The cleaning of IC electronic components is also widely used in all aspects.According to statistics, there are more than 200 solvents sold in the market.In recent years, various manufacturers have developed new products with higher added value of different brands to meet people's more needs.For solvent oil manufacturers, it has expanded production varieties, increasing production of high value -added products, and improving product quality, which has become a common problem. [0003] Solvent oil can be divided into aromatic hydrocarbons, aliphed fats, isopable hydrocarbons, cyclumanes, and corrected alkanes. Among them, the heterogenesis solvent oil has low condensat...

Claims

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Application Information

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IPC IPC(8): B01J27/19C10G53/14
Inventor 金伊男
Owner 上海永鸿实业集团化学科技有限公司
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