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Sorbent for processing transformer waste oil and method for producing the same

A technology for adsorbents and transformers, which is applied in the field of adsorbents for processing and recycling waste transformer oil, can solve the problems of high production cost, complex processing technology, and poor use effect of adsorbents, and achieve low production costs, simple production processes, and high yield high effect

Inactive Publication Date: 2009-04-15
STATE GRID CORP OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the current methods of processing deteriorated transformer oil are regenerated by the traditional acid-alkali clay method, which is labor-intensive and time-consuming, and pollutes the environment
In recent years, the adsorption method has also been used, but the production cost of the adsorbent used is high, the processing technology is complicated, and the use effect is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] According to the weight ratio of raw materials, it is 25 parts of sulfuric acid solution that mass percentage concentration is 19.8%, 23 parts of aluminum sulfate solution that mass percentage concentration is 6.95%, 23 parts of sodium silicate solution that mass percentage concentration is 6.02%, and concentration is 26% ammoniacal liquor 1.35 servings.

[0019] The production steps are:

[0020] a is 25 parts of the sulfuric acid solution that the mass percentage concentration is 19.8%, is poured into the 23 parts of aluminum sulfate solutions that the mass percentage concentration is 6.95%, and after stirring evenly, add 23 parts of the sodium silicate solution that the mass percentage concentration is 6.02%, After stirring evenly, 1.35 parts of ammonia water with a mass percent concentration of 26% was finally added.

[0021] b. Pump the mixed liquid into the reactor for aging, the aging temperature is controlled at 90°C, and the aging time is 8 hours.

[0022] c ...

Embodiment 2

[0026] According to the weight ratio of raw materials, it is 25 parts of sulfuric acid solution that mass percentage concentration is 19.5%, 23 parts of aluminum sulfate solution that mass percentage concentration is 6.9%, 23 parts of sodium silicate solution that mass percentage concentration is 6.07%, and solute mass percentage concentration is 24 parts. % ammoniacal liquor 1.35 parts.

[0027] The production steps are:

[0028] a is 25 parts of the sulfuric acid solution that the mass percentage concentration is 19.5%, is poured into the 23 parts of aluminum sulfate solution that the mass percentage concentration is 6.9%, and after stirring evenly, add 23 parts of the sodium silicate solution that the mass percentage concentration is 6.07%, After stirring evenly, 1.35 parts of ammonia water with a mass percent concentration of 24% was finally added.

[0029] b. Pump the mixed solution into the reactor for aging, the aging temperature is controlled at 80°C, and the aging ti...

Embodiment 3

[0034] According to the weight ratio of raw materials, it is 25 parts of sulfuric acid solution that mass percentage concentration is 19.6%, 23 parts of aluminum sulfate solution that mass percentage concentration is 6.91%, 23 parts of sodium silicate solution that mass percentage concentration is 6.02%, concentration is 26% ammoniacal liquor 1.35 servings.

[0035] The production steps are:

[0036] a is 25 parts of the sulfuric acid solution that the mass percentage concentration is 19.8%, is poured into the 23 parts of aluminum sulfate solution that the mass percentage concentration is 6.95%, and after stirring evenly, add 23 parts of the sodium silicate solution that the mass percentage concentration is 6.05%, After stirring evenly, 1.35 parts of ammonia water with a concentration of 25% was finally added.

[0037] b. Pump the mixed liquid into the reaction kettle for aging, the aging temperature is controlled at 80°C-90°C, and the aging time is 8-9 hours.

[0038] c Aft...

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PUM

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Abstract

The invention relates to an absorbent for treating and reclaiming waste liquid oil, in particular for treating and reclaiming waste transformer oil and a production method thereof. The absorbent is characterized in that the absorbent is prepared from the following raw materials according to the weight ratio: sulphuric acid solution, aluminium sulphate solution, sodium silicate solution and ammonia water are mixed, aged, roasted and dried, cleaned and re-roasted; and the finished product of the absorbent is obtained. The absorbent for treating the waste oil has the characteristics of innocuity, noninflammability, nonexplosiveness and so on, and higher capability of adsorbing substances in the waste oil such as acid, carbon microsphere, metal, water content, gel, and the like. The absorbent is sufficiently contacted with the waste oil so as to remove harmful substances in the oil. The absorbent not only has a simple production process, wide raw material sources, low production cost and no environmental pollution, but also has good effect of waste oil treatment, and high yield. The absorbent can save mass production cost for enterprises and energy for the country.

Description

technical field [0001] The invention relates to an adsorbent for processing and recovering waste liquid oil, especially waste transformer oil and a production method thereof. Background technique [0002] In the use of existing transformers, due to temperature changes brought about by its own operation, it is easy for moisture to enter the transformer oil and change the composition of the transformer oil, reducing the insulation of the transformer oil and deteriorating it, which is easy to cause short circuit and breakdown And other phenomena, bring harm to the transformer and line system. Moreover, many particulate impurities such as metal and carbon will seep into during operation, which will affect the operation effect of transformer oil. So after running for a period of time, it is necessary to replace the transformer oil. Most of the current treatment methods for degraded transformer oil are regenerated by the traditional acid-alkali clay method, which is labor-intens...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/16B01J20/30H01F27/14
Inventor 任乔林张坚冰罗运柏
Owner STATE GRID CORP OF CHINA
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