Production device and production method of liquid sodium dimethyl dithiocarbamate

A production device and technology of forma sodium, which is applied in the direction of organic chemistry, can solve the problems of hydrochloric acid or raw materials, high product cost, and high loss of carbon disulfide, so as to avoid the clogging of venting pipelines and safety problems, and reduce the overall cost of products , The effect of reducing equipment investment

Active Publication Date: 2013-07-24
青岛中科荣达新材料有限公司
View PDF1 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, dimethylamine, sodium hydroxide, and carbon disulfide are mainly used in the domestic production of sodium thiocarba to react. Other methods such as thiophosgene process and yellow ester ammonolysis method have only theoretical research value due to the large amount of waste water or the generation of hydrochloric acid or the raw materials are not worthwhile.
[0004] Existing Sodium Disulfide production process

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Production device and production method of liquid sodium dimethyl dithiocarbamate

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0033] Example 1, such as figure 1 As shown, a liquid sodium thiram production device includes a reactor 5, and the upper part of the reactor 5 is respectively connected with a dimethylamine high-position tank 1, a sulfur dioxide high-position tank 2, a sodium hydroxide high-position tank 3 through a pipeline, and The lower part of the reactor 5 is connected with a reactor discharge valve 12, and the reactor discharge valve 12 is sequentially connected with a filter 7, a finished product preparation tank 6, and a finished product storage tank 8 through pipelines.

[0034] The reactor 5 is provided with a reactor jacket and an internal cooling coil.

[0035] A circulating pump 9 is installed on the communication pipeline between the reactor discharge valve 12 and the filter 7.

[0036] An air compressor 4 is connected in parallel to the communication pipeline between the dimethylamine high-position tank 1, the sulfur dioxide high-position tank 2, the sodium hydroxide high-position tan...

Example Embodiment

[0052] Example 2, such as figure 1 As shown, a liquid sodium thiram production device includes a reactor 5, and the upper part of the reactor 5 is respectively connected with a dimethylamine high-position tank 1, a sulfur dioxide high-position tank 2, a sodium hydroxide high-position tank 3 through a pipeline, and The lower part of the reactor 5 is connected with a reactor discharge valve 12, and the reactor discharge valve 12 is sequentially connected with a filter 7, a finished product preparation tank 6, and a finished product storage tank 8 through pipelines.

[0053] The reactor 5 is provided with a reactor jacket and an internal cooling coil.

[0054] A circulating pump 9 is installed on the communication pipeline between the reactor discharge valve 12 and the filter 7.

[0055] An air compressor 4 is connected to the communication pipeline between the dimethylamine high-position tank 1, the sulfur dioxide high-position tank 2, the sodium hydroxide high-position tank 3 and the ...

Example Embodiment

[0071] Example 3, such as figure 1 As shown, a liquid sodium thiram production device includes a reactor 5, and the upper part of the reactor 5 is respectively connected with a dimethylamine high-position tank 1, a sulfur dioxide high-position tank 2, a sodium hydroxide high-position tank 3 through a pipeline, and The lower part of the reactor 5 is connected with a reactor discharge valve 12, and the reactor discharge valve 12 is sequentially connected with a filter 7, a finished product preparation tank 6, and a finished product storage tank 8 through pipelines.

[0072] The reactor 5 is provided with a reactor jacket and an internal cooling coil.

[0073] A circulating pump 9 is installed on the communication pipeline between the reactor discharge valve 12 and the filter 7.

[0074] An air compressor 4 is connected to the communication pipeline between the dimethylamine high-position tank 1, the sulfur dioxide high-position tank 2, the sodium hydroxide high-position tank 3 and the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a production device and a production method of liquid sodium dimethyl dithiocarbamate. The production device comprises a reaction kettle, wherein the upper part of the reaction kettle is respectively communicated with a dimethylamine head tank, a sulfur dioxide head tank and a sodium hydroxide head tank by pipelines; the lower part of the reaction kettle is connected with a reaction kettle dump valve; and the reaction kettle dump valve is sequentially communicated with a filter, a finished product allocation tank and a finished product storage tank sequentially by pipelines. The production method comprises the following steps of: measuring carbon bisulfide, a 30% sodium hydroxide solution and 40% dimethylamine at a mass ratio, placing a dimethylamine solution into the reaction kettle, mixing, supplying a cooling medium to a reaction kettle jacket and an internal cooling coil tube, pressing carbon bisulfide into a synthetic kettle when the temperature of the kettle drops to 10-20 DEG C, then pressing the 30% sodium hydroxide solution into the synthetic kettle, slowly opening a synthetic kettle dump valve, and pressing a material in the reaction kettle into the filter and then into the finished product allocation tank.

Description

technical field [0001] The invention relates to a production device and a synthesis method of liquid formex sodium, belonging to the technical field of chemical products. Background technique [0002] Forma sodium (scientific name sodium dimethyl dithiocarbamate) is one of the important dialkyl dithiocarbamate. In the rubber industry, it is used as a terminator for emulsion polystyrene butadiene rubber and styrene butadiene latex, as a vulcanization accelerator for rubber products, as a bactericidal algae and slime preventive agent in industrial water treatment, and as a bactericide in petroleum and paper industries. Algaecide, used in agriculture to produce insecticides such as thiram, thiram, etc., used in mining as a beneficiation agent for manganese ore, copper ore, gold and silver ore, etc., and also used as a wood preservative. It is a large amount used at home and abroad. Dialkyl dithiocarbamate species. [0003] At present, dimethylamine, sodium hydroxide, and c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C07C333/16
Inventor 郭祥荣李绍彦庄青王璀李绍禹
Owner 青岛中科荣达新材料有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap