| Patent Number |
Title Of Patent |
Date Issued |
| 4822932 |
Heat recovery in production of vinyl chloride by pyrolysis of dichloroethane |
April 18, 1989 |
| In a method of treating the reaction product of pyrolysis of 1,2-dichloroethane to form vinyl chloride and hydrogen chloride with multiple stage cooling and distillation separation of the reaction product and recycle of unreacted 1,2-dichloroethane to the pyrolysis step, the improvem |
| 4788357 |
Vinyl chloride production |
November 29, 1988 |
| An improved method of producing vinyl chloride by pyrolysis of purified 1,2-dichloroethane at temperatures from 480.degree. C. to 540.degree. C. at a pressure of 10 to 36 bar absolute with partial utilization of the heat content of the flue gases from the pyrolysis furnace firing to |
| 4584123 |
Process for upgrading hydrogen chloride containing chlorine, iron-III-chloride, ethylene and/or |
April 22, 1986 |
| A process of upgrading hydrogen chloride which contains chlorine, iron-III-chloride, acetylene and/or ethylene, for use in an oxichlorination process, wherein water in a gaseous state is added to the hydrogen chloride at temperatures between 120.degree. and 180.degree. C. within a ti |
| 4540837 |
Process for the work-up of residues of chlorination |
September 10, 1985 |
| A process for the work-up of chlorination residues by dissolving the same at temperatures between 100.degree. and 180.degree. C. in chlorine- and oxygen-containing hydrocarbons having a ratio by weight of hydrogen to chlorine of 0.028-0.06:1, a ratio by weight of oxygen:carbon of 0.0 |
| 4528174 |
Method for preparing hydrogen chloride for the ethyleneoxichlorination process |
July 9, 1985 |
| A method for preparing hydrogen chloride resulting from chlorination reactions for use in the ethyleneoxichlorination process by reacting the chlorine contained in the hydrogen chloride with ethylene in the gaseous phase in the presence of carrier catalysts based on an iron-free tran |
