Method for separating vinyl chloride from a thermally decomposed product of 1,2-dichloroethane
US6111152A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 1999 |
| Grant date | Aug 29, 2000 |
| Priority date | — |
| Expiry date | May 17, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/00006
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for separating vinyl chloride, which comprises cooling a cracked gas obtained by cracking 1,2-dichloroethane by a thermal cracking furnace, firstly in a heat exchanger, then further cooling it in a quenching tower and then distilling it, wherein the cracked gas is cooled in the heat exchanger to at least 350.degree. C., the quenching tower is controlled so that from 80 to 98 wt % of the cracked gas introduced is withdrawn as an overhead product and the rest of from 20 to 2 wt % of the cracked gas is withdrawn as a bottom effluent, and they are respectively sent to the subsequent steps, and formed coke is discharged together with the bottom effluent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.