| Patent Number |
Title Of Patent |
Date Issued |
| 5099085 |
Chlorination reactions and oxychlorination reactions in the presence of honeycomb monolithic cat |
March 24, 1992 |
| The use of hitherto known supported catalysts in chlorination processes and oxychlorination processes leads to high pressure drops and to the formation of hot spot temperatures in the reactor. When honeycomb monolithic catalyst supports provided with a multiplicity of channels open a |
| 4839153 |
Process for purification of HCl from pyrolysis of EDC |
June 13, 1989 |
| In a process for the purification of hydrogen chloride from the pyrolysis of 1,2-dichloroethane, optionally after a preceding step of acetylene removal by selective hydrogenation under specific conditions followed by rectification of the resulting mixture to obtain hydrogen chloride |
| 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 |
| 4754088 |
Process for oxychlorination of ethylene |
June 28, 1988 |
| In a process for preparation of 1,2-dichloroethane by chlorination of ethylene-containing reaction vent gases from the oxychlorination of ethylene in the presence of a catalyst carrier impregnated with metal compounds wherein the waste from the oxychlorination stage are chlorinated, |
| 4746759 |
Process for thermal cracking of 1,2-dichloroethane to form vinyl chloride |
May 24, 1988 |
| An improved process for the preparation of vinyl chloride from 1,2-dichloroethane (EDC) wherein 0.10 to 0.15 % by weight of carbon tetrachloride based on EDC, is used as a cracking promoter and the CHCl.sub.3 content is limited to less than 200 ppm. Before being fed to the cracking z |
| 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 |
| 4482770 |
Removal of acetylene from products of 1,2-dichloroethane pyrolysis |
November 13, 1984 |
| An improved process for the removal of acetylene from a hydrogen chloride stream in which the acetylene is converted to vinyl chloride by contact with a hydrochlorination catalyst, the improvement comprising, prior to contacting the stream with the hydrochlorination catalyst, contacting |
| 4415499 |
Process for the manufacture of palladium(II) catalyst and for the manufacture of alkenyl esters |
November 15, 1983 |
| The invention relates to supported catalysts based on a palladium(II) salt and activated carbon, there being used, as the support material, activated carbon having an analytical SiO.sub.2 content of from 0.5 to 8% by weight. The catalysts according to the invention are used for reacting |
| 4409396 |
Process for the manufacture of unsaturated carboxylic acid esters |
October 11, 1983 |
| The invention relates to a process for the manufacture of unsaturated carboxylic acid esters by the reaction of olefins or cyclo-olefins with oxygen and carboxylic acids in the gaseous phase, in the presence of a catalyst which contains elements of the subsidiary group VIII of the pe |
