Applied Chemical Engineering

Production and Applications of the Heavy Metal Chelating Agent of Sodium Dimethyl Dithiocarbamate

Yu Ying

Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; School of Chemistry, South China Normal University, Guangzhou 510006, China

Shichen Lin

Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; School of Chemistry, South China Normal University, Guangzhou 510006, China; Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-Park, Fukuoka 816-8580, Japan

Yuan Fang

Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; School of Chemistry, South China Normal University, Guangzhou 510006, China

Jiahui Gu

Zhejiang Zuhui Environmental Technology Co., Ltd., Hangzhou 311199, China

Fenglong Gu

Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; School of Environment, South China Normal University, Guangzhou 510006, China

Keywords: sodium dimethyl dithiocarbamate, heavy metal, chelating agents,

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Abstract

Sodium dimethyl dithiocarbamate (SDDC) is a universal heavy metal precipitant/chelating agent, which is widely used in the treatment of heavy metals in industrial wastewater and fly ash from waste incineration. It is very important as a heavy metal precipitant, fungicide, agricultural insecticide, rubber vulcanization accelerator, styrene-butadiene rubber polymerization terminator, polymerization inhibitor, mineral processing reagent, etc. This review article focuses on the research of the production and application of SDDC in heavy metal chelation. SDDC, acting as a heavy metal chelating agent, has following three advantages in the removal of heavy metals: (1) It can chelate with various heavy metal ions at room temperature to generate insoluble chelate salts and precipitates, which can be easily removed, so as to achieve the purpose of removing heavy metal pollution; (2) SDDC can perform chelation reaction with varies heavy metal ions at the same time, so as to achieve the purpose of removing varies heavy metals at one time; (3) As a heavy metal chelating agent, SDDC is simple to use and low costs, which is significantly better than other heavy metal chelating agents and precipitants. This review paper is a prospect for the R&D, production and applications of SDDC, and puts forward new ideas for the performance improvement based on SDDC.

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