Acetylene and a method for producing a vinyl chloride dichloroethaneand

基本信息

申請?zhí)?/td> JP2015515365 申請日 -
公開（公告）號 JP5974169B2 公開（公告）日 2016-08-23
申請公布號 JP5974169B2 申請公布日 2016-08-23
分類號 C07C17/08;C07C21/06;C07C17/23 分類 有機(jī)化學(xué)〔2〕;
發(fā)明人 - 申請（專利權(quán)）人 中科易工（上海）化學(xué)科技有限公司
代理機(jī)構(gòu) 特許業(yè)務(wù)法人ＹＫＩ國際特許事務(wù)所 代理人 中國科學(xué)院上海高等研究院;中科易工（上海）化學(xué)科技有限公司
地址 -
法律狀態(tài) -

摘要

摘要 Provided is a method for preparing vinyl chloride with acetylene and dichlorethane for large-scale industrial production. Acetylene, dichlorethane vapor and hydrogen chloride gas at a molar ratio of 1:(0.3-1.0):(0-0.20) are mixed; the raw mixed gas is preheated; the preheated raw mixed gas passes through a reactor containing a catalyst and reacts; the resultant mixed gas is cooled to 30-50° C. and pressurized to 0.4-1.0 MPa, and then cooled to ambient temperature, and further frozen to ?25-15° C. for liquefaction isolation, and unliquefied gas is recycled and reused; liquefied liquid is sent to a rectifying tower for rectification, and vinyl chloride monomers meeting polymerization requirements are obtained. The present invention has the advantages of eliminating mercury contamination completely, simplifying the reactor structure, recycling hydrogen chloride and acetylene, reducing waterwash process, avoiding mass production of waste acid and improving utilization of chlorine.