CN102961844A - Harmless treatment method of waste triethyl aluminum - Google Patents
Harmless treatment method of waste triethyl aluminum Download PDFInfo
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- CN102961844A CN102961844A CN2012104963875A CN201210496387A CN102961844A CN 102961844 A CN102961844 A CN 102961844A CN 2012104963875 A CN2012104963875 A CN 2012104963875A CN 201210496387 A CN201210496387 A CN 201210496387A CN 102961844 A CN102961844 A CN 102961844A
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- triethyl aluminum
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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
The present invention relates to a kind of processing method of discarded object, relate in particular to a kind of method for innocent treatment of useless triethyl aluminum.
Background technology
Triethyl aluminum has extremely inflammable, tool severe corrosive, strong and stimulating, and chemical reactivity is very high, the ingress of air spontaneous combustion of can smoldering.Oxygen base reaction of moisture to trace is extremely sensitive, easily causes combustion explosion.Contact the generation vigorous reaction with acid, halogen, alcohol, amine.Meet water and strongly decompose, emit inflammable paraffin gas.
In the prior art, for the processing of discarded triethyl aluminum, the one, the triethyl aluminum dilution is filled to the waste liquid tank return-to-factory; But because triethyl aluminum does not have inactivation, personnel have certain potential safety hazard when operating at the scene.The 2nd, add triethyl aluminum deactivator ATMER163; Although the method can make the triethyl aluminum inactivation, need to add a large amount of deactivators, processing cost is higher, and still need carry out subsequent treatment.
Summary of the invention
For solving problems of the prior art, the invention provides a kind of method for innocent treatment of useless triethyl aluminum, the method can be hydrolyzed the triethyl aluminum with high risk, and it is decomposed into aluminium hydroxide, ethane; Again aluminium hydroxide, ethane are carried out harmless treatment.
For achieving the above object, the present invention adopts following technical scheme:
A kind of method for innocent treatment of useless triethyl aluminum may further comprise the steps:
(1) triethyl aluminum that will scrap absorbs with white oil;
The white oil that (2) will contain again triethyl aluminum joins in the clear water, stirs to make its fully hydrolysis in water;
(3) collect aluminium hydroxide waste residue and the ethane waste gas that produces in step (2) hydrolytic process;
(4) after ethane waste gas is collected with gas holder, can be used as combustion gas and recycle; The aluminium hydroxide waste residue is recycling.
In the technical scheme provided by the invention, the concentration of the triethyl aluminum that absorbs in the described white oil of step (1) is less than 15wt.%.Consider that the batch mixing of the two just has certain flash-point, and the content of triethyl aluminum is higher when the concentration of the triethyl aluminum that absorbs in the white oil surpasses 15wt.%, the flash-point of batch mixing is lower; When the content of triethyl aluminum is 30wt.During %, the flash-point of batch mixing is 15 ℃, has the danger of burning, blast, is unfavorable for industrial operation.Therefore the present invention controls the concentration of triethyl aluminum in white oil and is no more than 15wt.%.The present invention is dispersed in triethyl aluminum in the white oil, and purpose is the concentration that dilution reduces triethyl aluminum, for follow-up operation process reduces potential safety hazard.
In the technical scheme provided by the invention, step (2) is described to contain the charge ratio of the white oil of triethyl aluminum and water less than 50wt.%.Because the reaction of triethyl aluminum and water belongs to violent exothermic process, the mass ratio that therefore contains triethyl aluminum white oil and water is less, and is safer for industrial operation; And mass ratio is larger, and the content of triethyl aluminum is more, and is larger with the thermal discharge of water reaction, causes the bumping of evaporation of water in the reaction system, solution, increased simultaneously the danger of industrial operation.Therefore the present invention controls the charge ratio that contains triethyl aluminum white oil and water and is no more than 50wt.%.
In order to improve the treatment effeciency of triethyl aluminum, reduce processing cost, technical scheme preferred steps of the present invention (2) is described to contain the white oil of triethyl aluminum and the charge ratio of water is 40 ~ 50wt.%.
In the technical scheme provided by the invention, in order to control reaction speed and the thermal discharge of triethyl aluminum in water, the described white oil that contains triethyl aluminum of control step (2) joins in the clear water with the speed less than 3L/min, to guarantee the security of industrial operation.
Method provided by the invention, the useless triethyl aluminum of hazardous chemical that will have highly inflammable and explosive property carries out harmless treatment.Directly solved and produced the security hidden trouble of the chemical enterprise of triethyl aluminum waste material, and indirectly created environmental benefit and economic benefit.Method provided by the invention, equipment simply, in operation, safe.
Than prior art, beneficial effect of the present invention:
(1) treatment effect is good: after carrying out harmless treatment through the inventive method, original triethyl aluminum is decomposed fully, without any residual, the elimination product is utilized the potential safety hazard in the process again;
(2) cost is low: method provided by the invention consumes a small amount of water and white oil in processing procedure; And the white oil in the running stores can carry out recycling, has reached the purpose of saving cost;
(3) non-secondary pollution, without the secondary waste deposits yields: the waste residue that produces in the processing procedure, waste oil and waste gas all carry out collection and treatment, there is no and efflux phenomenon.The discarded object that produces after processing all can be used as regenerative raw materials or generative fuel fully utilizes.
Description of drawings
Fig. 1 triethyl aluminum harmless treatment process flow chart that gives up
The specific embodiment
The following examples can make the present invention of those of ordinary skill in the art's comprehend, but do not limit the present invention in any way.
Embodiment 1
The method for innocent treatment of useless triethyl aluminum provided by the invention may further comprise the steps:
(1) dilution: under the stirring condition, the triethyl aluminum that uses nitrogen to utilize the pressure principle to scrap is pressed in the new white oil tank and absorbs, and the consumption of triethyl aluminum and white oil all measures with measuring pump.Theory according to the two mass ratio is calculated, and guarantees to absorb the content of triethyl aluminum in the rear white oil less than 15wt.%; Carry out again chemical analysis to absorbing rear white oil absorption liquid, guarantee that triethyl aluminum content is less than 15wt.%; Stir 30min after absorbing, leave standstill again 30min;
(2) decompose: add clear water in reactor, and open mixer, mixing speed is 400 ~ 600r/min; The white oil that utilizes nitrogen will contain triethyl aluminum is pressed in the clear water, and control white oil flow velocity is less than 3L/min; Control the feeding quantity that contains the triethyl aluminum white oil with this, thus the control reaction speed, during use the measuring pump metering;
(3) when the addition that contains the triethyl aluminum white oil is the 50wt.% of water, stop to add the white oil that contains triethyl aluminum, continue to stir, after the ethane waste gas that produces in the course of reaction is collected with gas holder, can be used as combustion gas and recycle; When without Ethane production, (use combustible gas detector to detect), be considered as reaction and finish;
(4) reacted waste liquid left standstill one day, and separatory is processed the oil reservoir that obtains the waste liquid upper strata, and oil reservoir can be done the fuel comprehensive utilization; Aluminium hydroxide waste residue in the lower aqueous layer can be used as the substitute of the aluminum-containing raw material of producing cement after dehydration; And the water that lower floor removes can continue on for the recycling of triethyl aluminum white oil.
Embodiment 2
The inventive method is processed useless triethyl aluminum, may further comprise the steps:
(1) dilution: first white oil is injected in the thinning tank, begins to stir, utilize nitrogen that triethyl aluminum slowly is pressed in the white oil, the content of control triethyl aluminum in white oil is 10wt.%.Stir 30min, mixing speed 300r/min after absorbing; Leave standstill again 30min after the stirring, carry out next step reaction;
(2) decompose: add clear water in reactor, the triethyl aluminum white oil that contains that step (1) is prepared joins in the reactor, opens and stirs, mixing speed 300r/min, the quality that contains the triethyl aluminum white oil by measuring pump control is 40% of water, Ethane production is arranged in the reaction, and collect with gas holder; When in the reactor without Ethane production after, be considered as reaction and finish; Reactant liquor leaves standstill layering behind the 30min;
(3) emit first water layer waste liquid and waste residue by reactor bottom, waste residue and water are recycling separately after the Separation of Solid and Liquid; Emit again oil reservoir, can be used as generative fuel and recycle; The ethane of collecting in the course of reaction also can be used as combustion gas and recycles.
Claims (5)
1. the method for innocent treatment of a useless triethyl aluminum is characterized in that may further comprise the steps:
(1) triethyl aluminum that will scrap absorbs with white oil;
The white oil that (2) will contain again triethyl aluminum joins in the clear water, stirs to make its fully hydrolysis in water;
(3) collect aluminium hydroxide waste residue and the ethane waste gas that produces in step (2) hydrolytic process;
(4) after ethane waste gas is collected with gas holder, can be used as combustion gas and recycle; The aluminium hydroxide waste residue is recycling.
2. method according to claim 1, it is characterized in that: the concentration of the triethyl aluminum that absorbs in the described white oil of step (1) is less than 15wt.%.
3. method according to claim 1 is characterized in that: step (2) is described to contain the charge ratio of the white oil of triethyl aluminum and water less than 50wt.%.
4. method according to claim 1 is characterized in that: step (2) is described to contain the white oil of triethyl aluminum and the charge ratio of water is 40 ~ 50wt.%.
5. the described method of each claim according to claim 1 ~ 4 is characterized in that: the described white oil that contains triethyl aluminum of step (2) joins in the clear water with the speed less than 3L/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104963875A CN102961844A (en) | 2012-11-28 | 2012-11-28 | Harmless treatment method of waste triethyl aluminum |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104963875A CN102961844A (en) | 2012-11-28 | 2012-11-28 | Harmless treatment method of waste triethyl aluminum |
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| CN102961844A true CN102961844A (en) | 2013-03-13 |
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| CN2012104963875A Pending CN102961844A (en) | 2012-11-28 | 2012-11-28 | Harmless treatment method of waste triethyl aluminum |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953933A (en) * | 2014-04-29 | 2014-07-30 | 福建省环境工程有限公司 | Method for treating waste triethyl aluminum |
| CN103953933B (en) * | 2014-04-29 | 2016-11-30 | 福建省环境工程有限公司 | The method processing discarded triethyl aluminum |
| CN107488459A (en) * | 2017-08-22 | 2017-12-19 | 上海立得催化剂有限公司 | A kind of method that high-efficiency environment friendly removes micro-moisture in high viscosity mineral oil |
| CN111135523A (en) * | 2019-12-30 | 2020-05-12 | 江苏弘成环保科技有限公司 | Mild method for treating triethyl aluminum in hazardous waste |
| CN114470605A (en) * | 2020-10-28 | 2022-05-13 | 中国石油化工股份有限公司 | Method and system for treating aluminum alkyl hazardous waste |
| CN114470608A (en) * | 2020-10-28 | 2022-05-13 | 中国石油化工股份有限公司 | Method and system for recycling and treating alkyl aluminum waste liquid |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201686638U (en) * | 2010-03-12 | 2010-12-29 | 浙江福瑞德化工有限公司 | Aluminium triethyl recovery device |
| CN102002425A (en) * | 2009-09-02 | 2011-04-06 | 中国石油天然气股份有限公司 | Method for deactivating and recovering white oil from waste white oil containing aluminum alkyl |
| CN102190359A (en) * | 2010-03-03 | 2011-09-21 | 中国石油天然气股份有限公司 | Method for removing residual alkyl aluminum in waste |
-
2012
- 2012-11-28 CN CN2012104963875A patent/CN102961844A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102002425A (en) * | 2009-09-02 | 2011-04-06 | 中国石油天然气股份有限公司 | Method for deactivating and recovering white oil from waste white oil containing aluminum alkyl |
| CN102190359A (en) * | 2010-03-03 | 2011-09-21 | 中国石油天然气股份有限公司 | Method for removing residual alkyl aluminum in waste |
| CN201686638U (en) * | 2010-03-12 | 2010-12-29 | 浙江福瑞德化工有限公司 | Aluminium triethyl recovery device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953933A (en) * | 2014-04-29 | 2014-07-30 | 福建省环境工程有限公司 | Method for treating waste triethyl aluminum |
| CN103953933B (en) * | 2014-04-29 | 2016-11-30 | 福建省环境工程有限公司 | The method processing discarded triethyl aluminum |
| CN107488459A (en) * | 2017-08-22 | 2017-12-19 | 上海立得催化剂有限公司 | A kind of method that high-efficiency environment friendly removes micro-moisture in high viscosity mineral oil |
| CN111135523A (en) * | 2019-12-30 | 2020-05-12 | 江苏弘成环保科技有限公司 | Mild method for treating triethyl aluminum in hazardous waste |
| CN111135523B (en) * | 2019-12-30 | 2021-06-22 | 江苏弘成环保科技有限公司 | Mild method for treating triethyl aluminum in hazardous waste |
| CN114470605A (en) * | 2020-10-28 | 2022-05-13 | 中国石油化工股份有限公司 | Method and system for treating aluminum alkyl hazardous waste |
| CN114470608A (en) * | 2020-10-28 | 2022-05-13 | 中国石油化工股份有限公司 | Method and system for recycling and treating alkyl aluminum waste liquid |
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Application publication date: 20130313 |