Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 7335806 | Integrated process for producing 1,2-dichloroethylene Describes an integrated process for preparing 1,2-dichloroethylenes. In the described process organic feed material, e.g., C2-C4 aliphatic hydrocarbons and/or chlorinated derivatives of such aliphatic hydrocarbons, is introduced into a first re... | 02/26/2008 |
| 7225621 | Organic working fluids The present invention provides an improved, commercially available organic working fluid, which is operable under a broad range of temperatures, is thermally stable, has a high auto-ignition temperature, low freezing point and high critical temperature and is benign... | 06/05/2007 |
| 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 |
| 6909024 | Process for the conversion of ethylene to vinyl chloride and novel catalyst compositions useful for such process This invention is a process for producing vinyl chloride from an ethylene-containing feed, oxygen, and a chlorine source in the presence of a catalyst. The process permits direct production of vinyl chloride in a single reactor system, and further permits ethane to ... | 06/21/2005 |
| 6673539 | Fluorous tagging compounds and methods of use thereof A method of increasing the fluorous nature of a compound includes the step of reacting the compound with at least one second compound having the formula: ##STR1## wherein Rf is a fluorous group and m is 0, 1 or 2.... | 01/06/2004 |
| 6156896 | Fluorous reaction and separation systems The present invention provides several methods of synthesis and separation in which organic/fluorous phase separation techniques are used to effect separations. The present invention also provides novel compositions of matter comprising fluorous Si, Sn an... | 12/05/2000 |
| 5981815 | Method for preparing , ω-bromochloroalkanes The invention relates to a process for the preparation of ,ω-bromochloroalkanes. A cyclic ether is hydrobrominated and then the phase obtained is reacted, without any prior purification or separation, with thionyl chloride.... | 11/09/1999 |
| 5973216 | Method for producing bromomethylcyclopropane A method for producing bromomethylcyclopropane is provided, comprising reacting an organic sulfonyl halide with cyclopropylmethanol in the presence of a tertiary amine in a non-protic solvent, to generate cyclopropylmethyl organic sulfonate, and reacting ... | 10/26/1999 |
| 5777121 | Fluorous reaction systems The present invention provides a method for carrying out a chemical reaction comprising the steps of forming an organic/fluorous solubilizing liquid phase comprising a solvent system. The solvent system is selected or adapted to substantially solubilize a... | 07/07/1998 |
| 5723704 | Process for the preparation of alkyl chlorides Process for the preparation of alkyl chlorides, characterized in that: a) in a first stage a primary mono- or polyhydric alcohol, which has a C4 -C30 carbon chain which is saturated, substituted or otherwise by one or more chlorine atoms ... | 03/03/1998 |
| 5099084 | Process for the chlorination of methane A process is provided for the chlorination of methane using hydrogen chloride as a source of chlorine. The process includes reaction steps operated in tandem in separate zones first comprising the reaction of perchloroethylene with hydrogen chloride and o... | 03/24/1992 |
| 5097083 | Process for the chlorination of ethane A process is provided for the chlorination of ethane using hydrogen chloride, chlorine or mixtures as the chlorinating agent. The process includes reaction steps operated in tandem in separate zones first comprising the reaction of perchloroethylene with ... | 03/17/1992 |
| 4990696 | Methyl alcohol process Perchloroethylene is oxychlorinated to provide hexachloroethane which is reacted with methane to produce methyl chloride which is hydrolyzed to form methyl alcohol product and hydrogen chloride which is recycled to the oxychlorination step.... | 02/05/1991 |
| 4849562 | Process for producing ethylene dichloride The oxychlorination process for producing ethylene dichloride is carried out by reacting ethylene with hydrogen chloride and oxygen in an oxychlorination reactor. Thereby, ethyl chloride and perhaps vinyl chloride are produced as by-products. The effluent... | 07/18/1989 |
| 4788358 | Process for the manufacture of 1,2-dichloroethane A process for the manufacture of 1,2-dichloroethane from ethylene by reaction with hydrogen chloride and inert gases containing oxygen, and also by reaction with chlorine, is described. The two chlorination reactions are carried out successively at 180° ... | 11/29/1988 |
| 4760207 | Recovery of ethylene, chlorine and HCl from vented waste gas from direct chlorination reactor In a process for producing 1,2-dichloroethane or ethylene dichloride ("EDC") in a high temperature direct chlorination ("HTDC") reactor in which ethylene is reacted with wet chlorine having a water content more than 100 ppm but no more than 1% by wt of th... | 07/26/1988 |
| 4754088 | Process for oxychlorination of ethylene 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 oxychlorin... | 06/28/1988 |
| 4746760 | Process for functionalizing alkanes Process for functionalizing saturated hydrocarbons comprising: (a) reacting said saturated hydrocarbons of the formula: wherein H represents a hydrogen atom; and R1 represents a saturated hydrocarbon radical, with a metal complex of the formula: wherei... | 05/24/1988 |
| 4668833 | Hydrogenation of acetylene contained in hydrogen chlorine gas, and application thereof A process for hydrogenating acetylene in hydrogen chloride gas using the catalytic palladium supported on silicon carbide carrier whose iron content is specified to be not more than 1,000 ppm. The catalyst has the advantages of enhancing the conversion of... | 05/26/1987 |
| 4590317 | Process for minimizing corrosion and coking in an ethylene dichloride plant A process is disclosed for the economical operation of a commercial ethylene dichloride (EDC) cracking furnace which typically is prone to coking of the tubes through which the EDC is flowed. The EDC cracking furnace is found to be critically sensitive to... | 05/20/1986 |
| 4518813 | Optically active units for the synthesis of the side chain of (R,R,R)--tocopherol and their preparation (2R,6R)-1-Chloro-2,6,10-trimethyl-undecane I, (R)-(+)-ଲ-chloro-isobutyric acid II, (S)-(+)-1-bromo-3-chloro-2-methylpropane IV and (2R)-(+)-1-chloro-2,6-dimethyl-heptane V are novel optically active units for the synthesis of the side chain of ... | 05/21/1985 |
| 4511745 | Process for functionalizing alkanes Process for functionalizing saturated hydrocarbons selectively in the terminal position comprising: (a) reacting said saturated hydrocarbons of the formula: where: H represents a hydrogen atom, and R represents a saturated hydrocarbon radical, with a metal comple... | 04/16/1985 |
| 4409198 | Process for the production of copper (II) chloride from copper (II) oxychloride using tertiary amine hydrochlorides Copper(II) chloride is prepared from copper(II) oxychloride in a nonpolar solvent, preferably during oxychlorination. As the source of hydrogen chloride, the hydrochlorides of certain tertiary amines having 12-40 carbon atoms in total are utilized. The am... | 10/11/1983 |
| 4319062 | Allyl chloride process An improved process for production of allyl chloride which comprises (1) thermally chlorinating propylene above 300° C., but below that at which substantial carbon formation is effected, (2) separating the allyl chloride from its by-products, (3) subject... | 03/09/1982 |
| 4271080 | Process for the preparation of tetrahydrofuran Tetrahydrofuran is prepared by reacting a 1,4-dihalobutane with water in the vapor phase in the presence of a catalytically effective amount of at least one solid acidic elemental oxide and/or solid acidic mixed elemental oxide, or acidic ion exchange res... | 06/02/1981 |
| 4268697 | Synthesis of long-chain alkanes having terminal functionality A process for preparing primary substituted n-alkane compounds, comprising contacting the olefin product of an olefin metathesis reaction having an alpha-olefin as the reactant with a bis-cyclopentadienyl zirconium hydrohalide and, after contacting the pr... | 05/19/1981 |
| 4211728 | Method of preparing carbon tetrachloride A method of preparing carbon tetrachloride of high purity from a crude mixture comprising lower aliphatic hydrocarbons, includes a step of liquid-phase chlorination at about 160°-200° C. and a step of vapor-phase chlorolysis at about 450°-600° C. in t... | 07/08/1980 |
| 4207268 | Oxychlorination of methane Methane is oxychlorinated to one or more chlorinated methanes, without net production of carbon tetrachloride, by contacting methane and chlorine and/or hydrogen chloride with a molten mixture of cuprous chloride, cupric chloride, and copper oxychloride, ... | 06/10/1980 |
| 4152356 | Method for the preparation of dibenzocycloheptenes from anthracene derivatives This invention relates to a method of producing a dibenzocycloheptene compound of the structure ##STR1## in high yields which comprises: (a) hydrogenating an anthracene derivative in the 9,10 position to form a 9,10-dihydroanthracene derivative, (b) ... | 05/01/1979 |
| 4131626 | Process for producing bromine A process is described for producing bromine which comprises heating a bromide salt at a temperature of about 500° to 1000° C in the presence of an oxygen-containing gas, silicon dioxide and an oxidation catalyst preferably selected from the group consi... | 12/26/1978 |
| 4129604 | Reactor effluent quench system Process for recovering hydrogen chloride from an aqueous hydrogen chloride off-gas from an oxychlorination reaction wherein hydrogen chloride is separated from the off-gas as an aqueous solution of hydrogen chloride and employed as feed to an oxychlorinat... | 12/12/1978 |
| 4107222 | Oxychlorination of methane Methane is oxychlorinated to one or more chlorinated methanes, without net production of carbon tetrachloride, by contacting methane and chlorine and/or hydrogen chloride with a molten mixture of cuprous chloride, cupric chloride, and copper oxychloride, ... | 08/15/1978 |
| 4061471 | Molten salt lift gas system for production of chlorinated hydrocarbons In the production of chlorinated hydrocarbons by the use of molten salts wherein molten salt is oxidized in a first reactor and lifted by lift gas in a first lift gas circuit into a chlorinated hydrocarbon production reactor, with the molten salt withdraw... | 12/06/1977 |
| 4046822 | Method for recovering ethylene values An improved ethylene oxychlorination process wherein the unreacted ethylene in the process off-gas is dried and reacted with chlorine in the presence of a non-reactive liquid to form ethylene dichloride, (1,2-dichloroethane) recovering the ethylene dichlo... | 09/06/1977 |
| 4036776 | Recovery of chlorine values from a melt oxidation gas A molten mixture containing the higher and lower valent forms of a multivalent metal chloride; in particular, cuprous and cupric chloride, is contacted with oxygen, and aqueous hydrogen chloride recycle, to recover the chlorine values by generation of the... | 07/19/1977 |
| 4036900 | Molten salt lift gas system for production of chlorinated hydrocarbons Process for producing a chlorinated hydrocarbon by the use of molten salts containing a multivalent metal chloride in its higher and lower valence states by oxidation of the molten salt in an oxidation reactor and use of the oxidized salt in an oxychlorin... | 07/19/1977 |
| 3979470 | Process for the production of primary normal monochloroparaffins Primary normal monochloroparaffins are produced in high yields in a chlorination process of normal paraffins by the recycling technique of the present invention. By the recycling of secondary and nonprimary monochloroparaffin to the chlorination zone and ... | 09/07/1976 |
| 3950443 | Utilization of waste products containing chlorine in the production of chlorinated organic compounds by combination of oxychlorination with combustion Two byproducts of the chlorine-consuming industry, weak hydrochloric acid and chlorine-containing organic wastes, are utilized in the production of chlorinated organics, preferably hydrocarbons, by oxychlorination. The chlorine-containing organic waste is... | 04/13/1976 |
