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| Number | Title | Issue Date |
| 7217849 | Method for the preparation of n-propyl bromide A method is described for producing n-propyl bromide of a high degree of purity, which contains isopropyl bromide in an amount lower than 0.1% w/w, and usually lower than 0.05%. The method is characterized in that n-propanol is reacted with HBr which is in gas form,... | 05/15/2007 |
| 7078576 | Process for producing isopropyl chloride The present invention is an industrially advantageous process for isopropyl chloride production in which the catalytic activity can be maintained under the milder reaction conditions than in the conventional processes, and which requires no special reactor. P... | 07/18/2006 |
| 6984763 | Oxidative halogenation and optional dehydrogenation of c3+hydrocarbons An oxidative halogenation and optional dehydrogenation process involving contacting a reactant hydrocarbon having three or more carbon atoms, such as propane or propene, or a halogenated derivative thereof, with a source of halogen, and optionally, a source of oxyge... | 01/10/2006 |
| 6977316 | Direct one-step synthesis of trifluoromethyl iodide A catalytic one-step process for the production of CF3I by reacting, preferably in the presence of a source of oxygen, a source of iodine with a reactant of the formula: CF3R where R is —SH, —S—S—CF3, —S... | 12/20/2005 |
| 5986152 | Supported catalyst, process for its production as well as its use in the oxychlorination of ethylene A supported catalyst includes: a) 0.5-15 wt. % of one or more Cu-II compounds, the quantitative amounts referring to copper metal; b) 0.1-8 wt. % of one or more alkali metal compounds, the quantitative amounts referring to alkali metal; c) 0.1-10 wt. % of... | 11/16/1999 |
| 5866732 | Preparation of alkyl bromides from aqueous hydrobromic acid and olefins Alkyl bromides are prepared from mixtures comprising aqueous hydrobromic acid and olefins in a process in which there is concentration of the aqueous hydrobromic acid present during the reaction.... | 02/02/1999 |
| 5866731 | Process for producing halogenated organic compound In a process for producing a halogenated organic compound wherein a hydrogen halide is added to an organic compound having an aliphatic carbon-carbon unsaturated bond, a catalyst is used, which is an organic compound having at least two polar groups in th... | 02/02/1999 |
| 5770780 | Process for preparing alkyl halides In the preparation of alkyl halides from cycloaliphatic olefins and hydrohalic acids, the reaction is carried out at a temperature below the boiling point of the olefin without the addition of catalyst and without a solvent. At a high olefin conversion ra... | 06/23/1998 |
| 5744663 | Process for preparing cyclopentyl bromide It has been found that cyclopentene and hydrogen bromide can be continuously reacted in a simple manner to give cyclopentyl bromide in good yields and good selectivities if the reaction is carried out in the presence of a heterogeneous catalyst. The react... | 04/28/1998 |
| 5672788 | Two-step process for manufacturing 1,1-difluoroethane A process is disclosed for producing 1,1-difluoroethane (CH3 CHF2 or HFC-152a) in a two-step reaction in a manner that reduces formation of high boiling materials. The first step comprises adding at least one of HCl or HF to chloroet... | 09/30/1997 |
| 5527975 | Process for the preparation of bromochloro-alkanes Bromochloro-alkanes are made by reaction of a corresponding chloroalkene with hydrogen bromide by a continuous process carried at -20° to +20° C., preferably in a gas-lift reactor.... | 06/18/1996 |
| 5466837 | Process for the production of hydrocarbon partial oxidation products An ethylene stream which contains ethane as an impurity or a propylene stream which contains propane as an impurity is subjected to adsorption at a temperature of 50° to 200° C. in a bed of adsorbent which selectively adsorbs ethylene or propylene, ther... | 11/14/1995 |
| 5345018 | Method for preparing 1-chloro-1-iodoethane The present invention relates to a method of synthesizing 1-chloro-1-iodoethane by reacting hydrogen iodide with vinyl chloride monomer in the presence of an iodine containing catalyst under certain specified conditions. The resulting product of the react... | 09/06/1994 |
| 5262547 | Process for the production of petrochemicals Petrochemicals are produced by the vapor phase reaction of a hydrocarbon with substantially pure oxygen in the presence of a suitable catalyst. In the improved process, the principal product is removed, carbon monoxide, present in the reactor effluent as ... | 11/16/1993 |
| 5179215 | Process for the production of petrochemicals An improved process is provided for the production of a petrochemical by the vapor phase reaction of a hydrocarbon with an oxygen-containing gas in the presence of a suitable catalyst to produce a flammable gaseous product stream comprising the desired pe... | 01/12/1993 |
| 4827060 | Removal and recycling of catalysts in chlorinated pricess streams A catalyst, such as FeCl3, useful in the production of chlorinated hydrocarbons such as 1,1-dichloroethane is removed from the effluent of a process reactor and recycled. Hydrochloric acid is removed from the process stream resulting in the cat... | 05/02/1989 |
| 4451683 | Catalyst, catalyst support and oxychlorination process An oxychlorination catalyst contains a copper compound, magnesium oxide and aluminium oxide, and the copper compound is present as a distinct phase on a support in which at least part of the magnesium oxide is in combined form with alumina.... | 05/29/1984 |
| 4388278 | Purification by hydrogenation of hydrogen chloride containing acetylene obtained by the thermal cracking of 1,2-dichloroethane The invention is a process for the purification of hydrogen chloride formed during the thermal cracking of 1,2-dichloroethane, by hydrogenating the acetylene impurities with excess hydrogen, at pressures of from 8 to 20 bar absolute and at temperatures of... | 06/14/1983 |
| 4324940 | Shape selective acid catalyzed reactions of olefins over crystalline zeolites Processes are provided for conducting selective acid catalyzed reactions involving olefins. Said catalytic reactions comprise isomerization, alkylation, addition, oligomerization, polymerization, aromatization, cracking and hydrocracking. The useful catal... | 04/13/1982 |
| 4168210 | Method of reducing reaction between hydrogen halides and olefinically unsaturated compounds A method for reducing losses due to reactions between hydrogen halides and olefinically unsaturated organic compounds in the presence of transition metals which act as catalysts for hydrohalogenation in mixtures containing same by adding to said mixtures ... | 09/18/1979 |
| 4118428 | Preparation of alkyl chlorides 2-CHLOROALKANES ARE SELECTIVELY PREPARED FROM DETERGENT RANGE ALPHA OLEFINS I.E., OLEFINS IN THE C7 to C30 range, by reacting the alpha olefin with hydrogen chloride in the presence of a metal chloride catalyst supported on a carrier... | 10/03/1978 |
| 4048241 | Process for preparing 1,1,1-trichloroethane A process for preparing 1,1,1-trichloroethane from ethylene and chlorine by hydrochlorinating the ethylene in the presence of aluminum chloride in a liquid phase reaction zone followed by chlorination of the resulting reaction product and finally by hydro... | 09/13/1977 |
| 4009216 | Preparation of isopropyl chloride In the preparation of isopropyl chloride wherein propylene and hydrogen chloride are reacted at elevated temperature in the gaseous phase in the presence of aluminum oxide as catalyst, the improvement which comprises effecting the reaction at a pressure o... | 02/22/1977 |
