| Patent Number |
Title Of Patent |
Date Issued |
| 5177233 |
Catalyst system and use for the preparation of 1,2-dichloroethane |
January 5, 1993 |
| A catalyst system for the preparation of 1,2-dichloroethane by reacting ethylene and chlorine in a solvent, if desired, in the presence of an inhibitor for reducing the formation of byproducts. The catalyst system comprises a phenolate/chlorine complex. The invention also relates to a |
| 5068475 |
Process for purifying unreacted 1,2-dichloroethane from a 1,2-dichloroethane pyrolysis process |
November 26, 1991 |
| The invention relates to a process for purifying unreacted 1,2-dichloroethane from a 1,2-dichloroethane pyrolysis process by chlorinating the benzene produced as a by-product and removing the chlorination products by distillation. |
| 4986975 |
Process for purifying hydrogen chloride from pyrolysis of 1,2-dichloroethane |
January 22, 1991 |
| The invention is a multi-stage process for purifying hydrogen chloride containing acetylene and ethylene, from pyrolysis of 1,2-dichloroethane to provide highly pure hydrogen chloride for use in the preparation of silicon compounds. In the first stage, unsaturated by-products are chl |
| 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 |
| 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 |
| 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 |
