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Method for treating waste triethyl aluminum

A technology of triethylaluminum and mixed liquid, which is applied in the direction of combustion method, combustion type, incinerator, etc., can solve the problems of hidden safety hazards, high processing costs, and unsatisfactory processing methods, and achieve the safety of the combustion process and the prevention of reactions Effect

Active Publication Date: 2014-07-30
福建省环境工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the prior art, there are two main ways to deal with the discarded triethylaluminum: one is to dilute the triethylaluminum into the waste liquid tank and return it to the manufacturer, but since the triethylaluminum is not deactivated, personnel operate on site Sometimes there will be certain safety hazards; the other is to add triethylaluminum deactivator ATMER163, although this method can deactivate triethylaluminum, it needs a large amount of deactivator, the processing cost is high, and still needs Follow up
Above-mentioned two treatment methods are all not quite ideal, now urgently need a kind of method that can process waste triethylaluminum harmlessly and safely

Method used

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  • Method for treating waste triethyl aluminum

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no. 1 approach

[0014] see figure 1 , figure 1 Shown is the first implementation method of the present invention, comprising steps:

[0015] S1. Use a protective gas to press the discarded triethylaluminum into the first storage tank containing white oil for absorption and form a mixed solution, in which the mass fraction of triethylaluminum is less than 8%;

[0016] S2, after stirring the mixed solution, let it stand for a period of time;

[0017] S3, using the protective gas to hydraulically send the mixture in the first storage tank to the second storage tank containing the protective gas located near the combustion furnace;

[0018] S4. Discharging the mixed liquid in the second storage tank into the combustion furnace for combustion.

[0019] Considering that when the mass fraction of triethylaluminum absorbed in the white oil exceeds 15%, the mixture of the two has a certain flash point, and the higher the concentration of triethylaluminum, the lower the flash point of the mixed solu...

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Abstract

The invention discloses a method for treating waste triethyl aluminum. The method comprises the following steps: S1, pressing waste triethyl aluminum to a first storage tank with white oil by protection gas, and absorbing waste triethyl aluminum to form a mixed solution, wherein the mass percent of waste triethyl aluminum in the mixed solution is less than 8%; S2, stirring the mixed solution and standing for a period of time; S3, pressing the mixed solution in the first storage tank to a second storage tank with the protection gas near a combustion furnace by the protection gas; S4, discharging a mixed solution in the second storage tank to the combustion furnace for combusting. The method has the benefits that triethyl aluminum is absorbed through the white oil to obtain diluted triethyl aluminum for guaranteeing the safety of a triethyl aluminum transport process; the protection gas is adopted as a gas pressure source in the transport process, so that triethyl aluminum can be prevented from reacting with air; diluted triethyl aluminum is completely combusted in the combustion furnace, the combustion process is safe, carbon dioxide generated in combustion is harmless, and aluminum oxide generated after the combustion is discharged together with slag and fly ash.

Description

technical field [0001] The invention relates to the field of harmless treatment of waste chemical raw materials, in particular to a method for treating waste triethylaluminum. Background technique [0002] Triethylaluminum is extremely flammable, highly corrosive and irritating, with high chemical reactivity, and will smoke and spontaneously ignite when exposed to air; it is extremely sensitive to trace amounts of oxygen water, and can easily cause combustion and explosion; it can react with acids, halogens, Alcohols and amines will react violently when in contact with them; they will decompose strongly when they meet with water, releasing flammable alkane gas. [0003] In the prior art, there are two main ways to deal with the discarded triethylaluminum: one is to dilute the triethylaluminum into the waste liquid tank and return it to the manufacturer, but since the triethylaluminum is not deactivated, personnel operate on site Sometimes there will be certain safety hazard...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23G7/00
Inventor 唐庆霖江荣生陈建洪
Owner 福建省环境工程有限公司
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