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| Number | Title | Issue Date |
| 7311807 | Process for the separation of mixtures containing m-and p-dichlorobenzene A process for the separation of dichlorobenzene mixtures containing m- and p-dichlorobenzene in which: (i) the mixture is as an extracting agent contacted with a phosphoric ester of the general formula (I) as an extracting agent | 12/25/2007 |
| 6933417 | Process for vinyl chloride manufacture from ethane and ethylene with partial CHl recovery from reactor effluent A process for producing vinyl chloride monomer from ethylene and ethane having input of significant quantities of both ethane and ethylene in input streams to the affiliated reactor where hydrogen chloride in the reactor effluent is only partially recovered from the... | 08/23/2005 |
| 6103945 | Process for converting the low-boiling by-products formed during the thermal cracking of 1,2-dichloroethane Ethylene is chlorinated in a reaction zone to form a product stream containing 1,2-dichloroethane, the latter being then thermally cracked in a cracking zone to form vinyl chloride. Light by-products formed during the thermal cracking step are chlorinated... | 08/15/2000 |
| 5545781 | Process for dehydrochlorinating 3,4-dichloro-1-butene to yield chloroprene A process for producing chloroprene by means of the dehydrochlorination of 3,4-dichloro-1-butene is disclosed, which is characterized in that the dehydrochlorination is carried out in the presence of lime and a primary amine having the general formula R--... | 08/13/1996 |
| 5436377 | Process for isolating M-dichlorobenzene from mixtures of dichlorobenzene isomers In a particularly advantageous process for isolating m-dichlorobenzene from mixtures of dichlorobenzene isomers by crystallization as eutectic crystals using a processing aid, the processing aid used is a compound of the formula (I) ##STR1## in ... | 07/25/1995 |
| 5175382 | Preparation of 1,2-Dichloroethane 1,2-Dichloroethane is prepared by reacting ethylene, hydrogen chloride and oxygen or an oxygen-containing gas in the presence of a copper-containing catalyst by a process in which first hydrogen chloride and oxygen or an oxygen-containing gas are reacted ... | 12/29/1992 |
| 4918252 | 1-halo-(Z,E)-7,10-dodecadiene and a method for the preparation thereof A novel and efficient synthetic route is proposed for the preparation of (Z,E)-9,12-tetradecadienyl acetate as a sex pheromone compound used for population control of the pest insects belonging to the genus of Spodoptera via an intermediate 1-halo-(Z,E)-7... | 04/17/1990 |
| 4482770 | Removal of acetylene from products of 1,2-dichloroethane pyrolysis 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 hydroc... | 11/13/1984 |
| 4380682 | Balanced chlorination process The present invention relates to a novel process of halogenating aliphatic hydrocarbons which comprises, first non-selectively oxyhalogenating a C2 -C6 aliphatic hydrocarbon to a partially halogenated intermediate product having an o... | 04/19/1983 |
| 4331820 | Cis-6-undecene-1-chloride and a method for the preparation thereof A novel compound cis-6-undecene-1-chloride is prepared by reacting cis-3-octene-1-chloride with metallic magnesium to give a Grignard reagent of the chloride and then reacting the Grignard reagent with 1-bromo-3-chloropropane in the presence of a lithium ... | 05/25/1982 |
| 4329525 | Production of chlorinated compounds by use of molten salts A compound is chlorinated with chlorine to produce chlorinated product and hydrogen chloride byproduct. Recovered hydrogen chloride byproduct is contacted with oxygen and a molten salt mixture containing the higher and lower valent chlorides of a multival... | 05/11/1982 |
| 4215078 | Process for manufacturing chloroprene and 2,3-dichlorobutadiene-1,3 An improved process for the production of chloroprene, which is the critical monomer constituent of neoprene rubbers, and of 2,3-dichlorobutadiene-1,3, which often is copolymerized with chloroprene to provide better low temperature properties of the resul... | 07/29/1980 |
| 4119674 | Process for production of 1,1,1-trichloroethane and vinylidene chloride An improved process for preparation of 1,1,1-trichloroethane and/or vinylidene chloride by the direct high temperature chlorination of ethane, ethyl chloride, ethylene, 1,1-dichloroethane or mixtures thereof wherein the relatively small quantities of unsa... | 10/10/1978 |
| 4070404 | Process to 1,1-dihalo-4-methyl-1,3-pentadienes, pyrethroid insecticide intermediates 1,1-Dihalo-4-methyl-1,3-pentadienes, key intermediates in the synthesis of insecticidal dihalovinylcyclopropanecarboxylates, result from the condensation of 3-methyl-1-butene with a carbon tetrahalide in the presence of a catalyst, followed by the base-in... | 01/24/1978 |
| 4014947 | Method of producing vinyl chloride A method of producing vinyl chloride, pyrolyzing gaseous and liqud hydrocarbons in a plasma jet of hydrogen or in a mixture of hydrogen and methane, with the addition of chlorine and/or HCl gas in such an amount that the content of HCl gas in the pyrolysi... | 03/29/1977 |
| 4005152 | Cycloalkenynes and a method for the preparation thereof Cycloalkenic compounds containing a side-chain which possesses a halogenated acetylenic linkage may be prepared by dehydrochlorinating a cycloalkenic compound containing a chloro-substituted unsaturated substituent.... | 01/25/1977 |
| 3992460 | Purging of tars and carbon from chlorinated hydrocarbon effluent An effluent containing chlorinated hydrocarbons and tar, withdrawn from a reactor employing molten copper chlorides and oxychloride, is quenched to separate carbon and tars, and the separated carbon and tars introduced into the reactor to effect combustio... | 11/16/1976 |
| 3987119 | Production of vinyl chloride from ethane A process is disclosed for the production of ethylene dichloride from ethane. Ethane is introduced into an autothermic (self-sustaining) cracking zone together with controlled proportions of chlorine and oxygen. The autothermic cracking zone is maintained... | 10/19/1976 |
