Sodium methyl mercaptide production environment-protecting processing device and technology

A technology for sodium methyl mercaptan and environmental protection treatment, which is applied in natural water treatment, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc. Low operating costs, lower production costs, and improved environmental effects

Active Publication Date: 2015-09-30
陵县鲁鑫工贸有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] The invention provides an environmental protection treatment device for the production of sodium methyl mercaptide and an environmental protection treatment process thereof, so...

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  • Sodium methyl mercaptide production environment-protecting processing device and technology

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Embodiment Construction

[0019] As shown in the figure, an environmental protection treatment device for the production of sodium methyl mercaptide includes a process waste liquid treatment mechanism and a process waste gas treatment mechanism. The process waste gas treatment mechanism is mainly composed of a burner 15, an air preheater 18, a front absorption tower 19 and a rear The absorption tower 20 is composed of the sodium methyl mercaptide process waste gas pipe connected to the burner 15, the burner 15 is connected to the front absorption tower 19 through the air preheater 18, the front absorption tower 19 is connected to the rear absorption tower 20, and the rear absorption tower 20 is connected to the rear absorption tower 20. A liquid caustic inlet pipe is connected, the air preheater 18 is a shell-and-tube structure, the shell side is fed with ambient air, and the tube side is passed through the flue gas of the burner; the process waste liquid treatment mechanism is mainly composed of an acid...

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Abstract

The invention discloses a sodium methyl mercaptide production environment-protecting processing device and technology. The device comprises a technology waste liquid processing mechanism and a technology waste gas processing mechanism which mainly comprises a burner, an air preheater, a front absorption tower and a back absorption tower. The technology waste liquid processing mechanism mainly comprises an acid pickling device, a sulfuric acid middle tank, a waste liquid filtering tank, a sodium sulfate solution circulating tank, a crystallization liquid circulating pool, a crystallization tower, a flash dryer, an anhydrous sodium sulphate storage tank, a washer group, an alkali liquid middle tank and a humidifying evaporator. Sodium methyl mercaptide production waste liquid and waste gas are creatively combined organically for processing, technology waste gas high in combustion value is used for incineration and absorbing, sodium sulfite by-products are obtained, a large amount of high-temperature gas is obtained, the high-temperature gas is used for obtaining anhydrous sodium sulphate by-products with higher value, the purposes of sodium methyl mercaptide production deodorization disinfecting and environment improving can be achieved, sodium bisulfide, sodium sulfite and anhydrous sodium sulphate can be obtained by recycling, and the production cost of sodium methyl mercaptide is lowered.

Description

technical field [0001] The invention relates to the technical field of environmental protection treatment of sodium methyl mercaptide, in particular to an environmental protection treatment device for producing sodium methyl mercaptide and an environmental protection treatment process thereof. Background technique [0002] Sodium methyl mercaptide is an important organic intermediate compound, which can be used to produce a variety of pesticides such as methomyl, aldicarb, etc., and feed additives such as methionine. Its production process mostly uses the reaction of sodium hydrosulfide and dimethyl sulfate (or methyl chloride) to generate methyl mercaptan gas, which is then absorbed by liquid caustic soda into a 20% sodium methyl mercaptide solution, which will inevitably produce Odor, toxic pollutants, and wastewater containing sodium bisulfide and a small amount of volatile by-product methyl sulfide. In recent years, many domestic manufacturers of sodium methyl mercaptan...

Claims

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Application Information

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IPC IPC(8): C02F9/08B01D53/78B01D53/50B01D53/52F23G7/06C01D5/14C01D5/00C02F103/36
CPCY02P20/129
Inventor 白国强杨金雁
Owner 陵县鲁鑫工贸有限公司
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