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Harmless treatment method of waste triethyl aluminum

A harmless treatment, triethylaluminum technology, applied in chemical instruments and methods, alumina/aluminum hydroxide, organic chemistry, etc., can solve the problems of hidden safety hazards and high treatment costs, and achieve cost savings and good treatment effects. , the effect of eliminating security risks

Inactive Publication Date: 2013-03-13
DALIAN DONGTAI INDAL WASTE TREATMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, for the treatment of discarded triethylaluminum, one is to dilute the triethylaluminum into the waste liquid tank and return it to the manufacturer; but because the triethylaluminum is not inactivated, personnel will have certain difficulties when operating on site. Security risks
The second is to add triethylaluminum deactivator ATMER163; although this method can deactivate triethylaluminum, it needs to add a large amount of deactivator, the processing cost is high, and follow-up treatment is still required

Method used

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  • Harmless treatment method of waste triethyl aluminum

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Effect test

Embodiment 1

[0023] The harmless treatment method of waste triethylaluminum provided by the invention comprises the following steps:

[0024] (1) Dilution: Under the condition of stirring, use nitrogen to press the discarded triethylaluminum into a new white oil tank for absorption by using the pressure principle. The dosage of triethylaluminum and white oil is measured by a metering pump. According to the theoretical calculation of the mass ratio of the two, ensure that the content of triethylaluminum in the white oil after absorption is less than 15wt.%; conduct chemical analysis on the absorption liquid of the white oil after absorption to ensure that the content of triethylaluminum is less than 15wt.%. Then stir for 30min, then let stand for 30min;

[0025] (2) Decomposition: Add clean water to the reactor, and turn on the mixer with a stirring speed of 400~600r / min; use nitrogen to press the white oil containing triethylaluminum into the clean water, and control the flow rate of the w...

Embodiment 2

[0029] The inventive method handles waste triethylaluminum, comprises the following steps:

[0030] (1) Dilution: first inject the white oil into the dilution tank, start stirring, slowly press triethylaluminum into the white oil with nitrogen, and control the content of triethylaluminum in the white oil to 10wt.%. Stir for 30 minutes after absorption, and the stirring speed is 300r / min; after stirring, let it stand for 30 minutes, and proceed to the next step of reaction;

[0031] (2) Decomposition: Add clear water to the reactor, add the white oil containing triethylaluminum prepared in step (1) into the reactor, start stirring at a stirring speed of 300r / min, and control the amount of triethylaluminum-containing white oil through a metering pump. The quality of white oil is 40% of water, and ethane is produced in the reaction, and is collected with a gas cabinet; when no ethane is produced in the reactor, the reaction is considered to be over; the reaction solution is separ...

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Abstract

The invention provides a harmless treatment method of waste triethyl aluminum, which is characterized by comprising the following steps of: absorbing waste triethyl aluminum with white oil; adding the white oil containing triethyl aluminum into clean water, and stirring to sufficiently dissolve the white oil in water; collecting aluminum hydroxide waste residues and ethane waste gas generated in the hydrolysis process; collecting the ethane waste gas with a gas cabinet and recycling as fuel gas; and recycling the aluminum hydroxide waste residues. The method provided by the invention directly solves the problem of potential safety hazards of the chemical enterprise in the process of producing waste triethyl aluminum, and indirectly creates environmental and economic benefits. Through the method provided by the invention, the equipment is simple, the operation is easy, and the safety is high.

Description

technical field [0001] The invention relates to a waste treatment method, in particular to a harmless treatment method for waste triethylaluminum. Background technique [0002] Triethylaluminum is extremely flammable, highly corrosive, highly irritating, highly reactive, and will smoke and spontaneously ignite when exposed to air. It is extremely sensitive to trace amounts of oxygen and moisture, and can easily cause combustion and explosion. Violent reaction occurs in contact with acids, halogens, alcohols, amines. When meeting with water, it will decompose strongly, releasing flammable alkane gas. [0003] In the prior art, for the treatment of discarded triethylaluminum, one is to dilute the triethylaluminum into the waste liquid tank and return it to the manufacturer; but because the triethylaluminum is not inactivated, personnel will have certain difficulties when operating on site. Security risks. The second is to add triethylaluminum deactivator ATMER163; although...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62D3/35C01F7/02C07C9/06C07C1/32A62D101/28
Inventor 迟振新殷国元华庆亮蔡钊荣王颖高麒麟肖朋官香元张晓琳盖世男
Owner DALIAN DONGTAI INDAL WASTE TREATMENT
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