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Thiophilic bacteria bio-enzyme deodorization method and application thereof

A technology of biological enzymes and sulfophagy bacteria, which is applied in separation methods, chemical instruments and methods, and sulfur preparation/purification, etc., can solve the problems of air pollution, large waste, secondary pollution, etc., and achieve the effect of low cost of use

Inactive Publication Date: 2013-03-13
武汉正清和环保科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chiral resolution, simple technology, limited application range (mainly organic acids and amines), large waste
During the production of S-tert-butylsulfinamide, a large amount of irritating gases such as mercaptan and thioether will be produced, polluting the air
Using traditional absorption method and chemical method to eliminate odor can not completely deodorize, and will produce secondary pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Deodorization during the production of ethyl chloride:

[0046] The selected thiolophilic species were cultured in a constant temperature incubator for 24 hours, transplanted into a fermented seed tank and fermented for 24 hours; then the fermentation liquid in the seed tank was transplanted into a fermenter for 48 hours of fermentation. Extract the biological enzymes therein, and then mix according to the ratio of 2.5 parts of biological enzymes, 0.2 parts of sodium hydroxide, 0.1 parts of sodium acetate, 0.2 parts of diisopropylethylamine and 7 parts of water to prepare a cost deodorant.

[0047] On the exhaust gas outlet pipeline of the ethyl chloride production device, connect the clear water tank, the dilute alkali tank, the spray tower and the vacuum unit in sequence, and add two-thirds of the deodorant to the spray tower feed liquid tank, and the smelly The gas enters the spray tower after being pretreated by the clean water tank and the dilute alkali tank, where...

Embodiment 2

[0049] Deodorization during disulfide production:

[0050] The selected thiolophilic species were cultured in a constant temperature incubator for 24 hours, transplanted into a fermented seed tank and fermented for 24 hours; then the fermentation liquid in the seed tank was transplanted into a fermenter for 48 hours of fermentation. The biological enzyme is extracted, and then mixed according to the ratio of 3 parts of biological enzyme, 0.5 part of potassium hydroxide, 0.2 part of KOAc, 0.3 part of triethylamine and 6 parts of water to prepare the cost deodorant.

[0051] On the exhaust gas outlet pipeline of the production device, the dilute alkali tank, clean water tank, bubbling absorption tank and vacuum unit are connected in sequence. The odor enters the bubbling absorption tank after being pretreated by the clean water tank and dilute alkali tank, Neutralizes on contact with and is degraded by deodorants.

Embodiment 3

[0053] Eliminate the odor of ethyl chloride by-product sulfur:

[0054] The selected thiolophilic species were cultured in a constant temperature incubator for 24 hours, transplanted into a fermentation seed tank and fermented for 24 hours; and then the fermentation liquid in the seed tank was transplanted into a fermenter for 48 hours of fermentation. Extract the biological enzymes therein, and then mix according to the ratio of 4 parts of biological enzymes, 0.35 parts of magnesium hydroxide, 0.15 parts of NaOAc, 0.3 parts of diisopropylethylamine and 5.2 parts of water to prepare a cost deodorant.

[0055] Add water equivalent to the amount of sulfur in the by-product sulfur treatment tank, then add deodorant at a ratio of 10%, stir at normal temperature for one hour, and then discharge.

[0056] In addition to the above embodiments, multiple embodiments can be formed according to different formulations of biological enzyme actives, inert base materials and water.

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Abstract

The invention discloses a thiophilic bacteria bio-enzyme deodorization method, wherein a high-efficiency bio-enzyme treated agent is prepared from bio-enzyme, generated by thiophilic bacteria and used as an active matter, and an inertia base used as a carrier, and is used for removing odor generated in the production processes of a pesticide intermediate of ethyl chloride and a medicine intermediate of disulfide. The invention has the advantages that the application method is simple without special equipment used, and improvement is carried out on only part of pipelines of the traditional equipment; the deodorization effect is obvious and the degradation rate on odor substances is above 95%; no secondary pollution is generated and the degradation products are water, carbon dioxide and elementary substance of sulphur which is recyclable; and the application cost is low and only accounts for 1-2% of the cost of the production raw materials.

Description

technical field [0001] The present invention relates to a kind of deodorization technology of sulfophage bio-enzyme. Specifically, it adopts the bio-enzyme deodorant produced by sulfophage as active substance and the inert base material as carrier. The technology to eliminate the odor produced in the production of base chloride and pharmaceutical intermediate disulfide products. Background technique [0002] Ethyl chloride is an essential intermediate for the synthesis of low-toxic organophosphorus pesticides and cephalosporins. Sulfur is one of the main raw materials for the production of ethyl chloride, and about 730 kg of sulfur raw materials are required for each ton of ethyl chloride, but only about 30% of the sulfur element enters the molecular formula of ethyl chloride, and the other sulfur is mainly in the form of solid sulfur Waste residue and sulfur-containing odor are discharged. At present, the domestic annual production capacity of ethyl chloride is about 150,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/84B01D53/48C01B17/04
CPCY02A50/20
Inventor 桂厚瑛周秋名胡新明陈世扬吴霞
Owner 武汉正清和环保科技开发有限公司
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