Acetylene and a method for producing a vinyl chloride dichloroethaneand
基本信息
| 申请号 | JP2015515365 | 申请日 | - |
| 公开（公告）号 | JP5974169B2 | 公开（公告）日 | 2016-08-23 |
| 申请公布号 | JP5974169B2 | 申请公布日 | 2016-08-23 |
| 分类号 | C07C17/08;C07C21/06;C07C17/23 | 分类 | 有机化学〔2〕; |
| 发明人 | - | 申请（专利权）人 | 中科易工（上海）化学科技有限公司 |
| 代理机构 | 特許業務法人ＹＫＩ国際特許事務所 | 代理人 | 中国科学院上海高等研究院;中科易工（上海）化学科技有限公司 |
| 地址 | - | ||
| 法律状态 | - | ||
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. |
