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Class 570/261 - Halogen source is a compound other than hydrogen halide


Subclass of Class 570 - Organic compounds -- part of the class 532-570 series
Definition: Process wherein a source of halogen in there product is
No. of patents: 89
Last issue date: 04/22/2008


1      
NumberTitleIssue Date
7361794Zone reactor
In a method of converting alkanes to their corresponding alcohols and ethers a vessel comprises a hollow, unsegregated interior defined first, second, and third zones. In a first embodiment of the invention oxygen reacts with metal bromide in the first zone to provi...
04/22/2008
7230150Zone reactor
In a method of converting alkanes to their corresponding alcohols, ethers, olefins, and other hydrocarbons, a vessel comprises a hollow, unsegregated interior defined first, second, and third zones. In a first embodiment of the invention oxygen reacts with metal hal...
06/12/2007
7216113Remote Execution of Materials Library Designs
Methods, apparatus, and business processes enabling individual chemists to design, order, and obtain data for multiple experiments or measurements in a timely and cost-effective manner. In particular implementations, the invention includes methods and apparatus for ...
05/08/2007
7189884Processes for synthesis of tetrafluoropropene
Disclosed in one embodiment is a process for the synthesis of 1,3,3,3-tetrafluoropropene that comprises (a) reacting a compound of formula (I) X1X2 with a compound of formula (II) CF3CH═CH2 to produce a reaction product ...
03/13/2007
7161050Method and apparatus for synthesizing olefins, alcohols, ethers, and aldehydes
A reactant selected from the group consisting of alkanes, alkenes, alkynes, dienes, and aromatics is reacted with a halide selected from the group including chlorine, bromine, and iodine to form a first reaction product. The first reaction product is reacted with a ...
01/09/2007
7148390Integrated process for synthesizing alcohols, ethers, aldehydes, and olefins from alkanes
Alcohols, ethers, aldehydes, and olefins are manufactured from alkanes by mixing an alkane and a halogen selected from the group including chlorine, bromine, and iodine in a reactor to form alkyl halide and hydrogen halide. The alkyl halide only or the alkyl halide ...
12/12/2006
7112709Method for reusing heavy end by-products in the manufacture of polychlorinated alkanes
A method for recovering much of the carbon and chlorine value in the heavy ends and other undesired by-products formed during the production of a C3 or higher polychlorinated alkane through the reaction of carbon tetrachloride with an olefine or chlorinat...
09/26/2006
7102042Method for producing substituted fluorene monomers
A method for preparing a composition of the formula in a yield greater than 50% where R1 is C 1-20 comprising the steps of combining fluorene or dibromo flourene, an excess of alkali metal hydroxide and a ha...
09/05/2006
7094936Process for preparing halogenated alkanes
Methods and materials are provided for the production and purification of halogenated compounds and intermediates in the production of 1,1,1,3,3-pentafluoropropane. In a preferred embodiment, the process steps include: (1) reacting carbon tetrachloride with vinyl ch...
08/22/2006
7060862Method for the preparation of α,α,α′,α′-tetrachloro-p-xylene with high purity
A method of synthesizing a high purity product of α,α,α′,α′-tetrachloro-p-xylene is disclosed. The method includes carrying out a first stage reaction of terephthaldicarboxaldehyde with a mixture of SOCl2 and dimethylformamide (DMF) to obtain a pr...
06/13/2006
7019182Method of hydrocarbon preservation and environmental protection
Gas phase hydrocarbons resulting from the operation of offshore petroleum wells are converted into corresponding liquid products which are mixed with liquid phased hydrocarbons resulting from operation of the offshore petroleum well for delivery therewith. ...
03/28/2006
6992231Method for the preparation of α,α, α′,α′-tetrachloro-p-xylene
A synthesis method of α,α,α′,α′-tetrachloro-p-xylene is disclosed. The method includes reacting terephthaldicarboxaldehyde with a mixture of SOCl2 and dimethylformamide (DMF) to obtain a product mixture containing α,α,α′,α′-tetrachloro-p-x...
01/31/2006
6958424Process for fluoroalkenes
Disclosed is a process for producing fluoroalkene of the formula Rf—CH═CH2 from a fluorohaloalkene having the formula Rf—C(R1)═C(R2)H, wherein Rf is fluorine or a substituted or unsubstituted ...
10/25/2005
6911558Method for purifying chloromethyl chloroformate
Describes a method for obtaining substantially pure chloromethyl chloroformate from a chloroformate mixture comprising chloromethyl chloroformate and methyl chloroformate by heating the chloroformate mixture in a reaction zone at temperatures ranging from at least 5...
06/28/2005
6878853Process for preparing dihalogenated adamantanes
This invention discloses a process for preparing a dihalogenated adamantane by reacting an adamantane optionally substituted with alkyl at 1-position with a halosulfonic acid, comprising the first stage of monohalogenation conducted at −5 to 15° C. and then the s...
04/12/2005
6861566Process for producing 1-chloro-4-arylbutane
There is provided an industrially advantageous process for producing a 1-chloro-4-arylbutane represented by the general formula (2): wherein R represents hydrogen, lower alkyl, or lower alkoxy, characterized by reactin...
03/01/2005
6846946Process for making organic products and improving the quality of non-product streams using phase transfer catalysis
A method for preparing organic products from aqueous solutions, such as waste or byproduct liquid streams and waste or byproduct gas or vapor streams, uses phase transfer catalysis to transfer a chemical species in low concentration from the aqueous solution to the ...
01/25/2005
6806396Disposal of fluoroform (HFC-23)
The present invention relates to the co-pyrolysis of fluoroform and chlorodifluoromethane to form a mixture of useful fluoroolefin and saturated HFCs, notably, tetrafluoroethylene and hexafluoropropylene and CF3CHF2 and CF3CHFCF...
10/19/2004
6740253Preparation of non-hazardous brominating reagents
The present invention relates to a non-hazardous brominating reagent from an aqueous alkaline bromine byproduct solution obtained from bromine recovery plant and containing 25 to 35% bromine dissolved in aqueous lime or sodium hydroxide containing alkali bromide and...
05/25/2004
6627777Catalysts for hydrodechlorination of carbon tetrachloride to chloroform
Catalysts for the fluid-bed hydrodechlorination of carbon tetrachloride to chloroform having high catalytic stability and comprising platinum supported on microspheroidal gamma alumina, characterized in that the platinum is in the form of particles disper...
09/30/2003
6489524Selective bromination of aromatic compounds
Aromatic substrates are Ar-brominated in high yield and selectivity by reacting the substrate with a brominating agent in the presence of at least about 0.19 gram per mmol of substrate of a zeolite catalyst which has an absorbed water content of no greate...
12/03/2002
6255544Process for the manufacture of halocarbons
A liquid phase process is disclosed for producing halogenated alkane adducts of the formula CAR1 R2 CBR3 R4 (where A, B, R1, R2, R3, and R4 are as defined in the speci...
07/03/2001
6245954Method of producing alkyl chloride, alkenyl chloride and alkinyl chloride
The present invention relates to a process for preparing alkyl, alkenyl and alkynyl chlorides from alcohols by reaction with a chlorinating agent in the presence of a catalyst, wherein the catalyst is a urea compound....
06/12/2001
6206819Halogenation catalyst
N,N-disubstituted formamides, wherein the substituents are selected to provide formamides which have low volatility, are useful as halogenation catalysts. Such catalysts are generally less hazardous to use than typical formamide halogenation catalysts bec...
03/27/2001
6204418Process for the chlornation of hydrocarbons
A process is provided for the chlorination of aliphatic hydrocarbons containing 1 to 4 carbon atoms using hydrogen chloride as the source of chlorine. The process comprises reaction steps operated in tandem in separate zones. First, an unsaturated aliphat...
03/20/2001
6187977Process for producing chlorinated tertiary carbon-containing hydrocarbons
The present invention thus provides a process for producing (D) a chlorinated hydrocarbon compound of the general formula (2): Cn R1m Hk (CR2 R3 Cl)j (2) [wherein n is an integer of 1 to ...
02/13/2001
6118032Process for the production of cyclopropylmethyl halides
Disclosed is a process for the production of cyclopropylmethyl halides (CPMX) such as cyclopropylmethyl chloride (CPMCI) and cyclopropylmethyl bromide (CPMBr) wherein cyclopropanemethanol (CPMO) is contacted with a complex comprising a dialkyl sulfide and...
09/12/2000
5981815Method 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
5973216Method 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
5914432Hydrogenation of halogenated compounds
A halogenated compound (I) containing one or more >C.dbd.O, olefinic and/or aromatic >C.dbd.C< groups is hydrogenated for producing a halogenated compound (II) having no or a decreased level of >C.dbd.O, olefinic and/or aromatic >C.dbd.C< groups. In the h...
06/22/1999
5910617Process for the preparation of aliphatic or cycloaliphatic chlorides
The process according to the invention consists in preparing chlorides of aliphatic or cycloaliphatic hydrocarbons by reacting the corresponding mono- or polyalcohol with phosgene or thionyl chloride in the presence of at least one catalyst chosen from he...
06/08/1999
5856597Preparation of lucas reagent of enhanced utility and its use in synthesis of cycloaliphatic chlorides
Gaseous anhydrous hydrogen chloride is introduced into an aqueous solution of zinc chloride under conditions effective to produce a more efficient Lucas reagent than a Lucas reagent made by mixing solid, anhydrous zinc chloride with 38% hydrochloric acid....
01/05/1999
5760255Process for the conversion of hydroxyl groups into the corresponding fluorine compounds
The invention is drawn to a process for the conversion of primary and secondary alcohols into the corresponding fluorine compounds in the presence of an organic solvent, 2-3 equivalents of a strong base and perfluoroalkylsulphonyl fluorides, such as perfl...
06/02/1998
5703248Process for the selective trihalogenation of ketones useful as intermediates in the synthesis of thiophenes
The present invention concerns a novel process for the selective trihalogenation of ketones employing organic halogen salts....
12/30/1997
5637781Process for the alcoholysis of carbon tetrachloride
The invention relates to a process for the alcoholysis of carbon tetrachloride which consists in simultaneously sending, on the one hand, carbon tetrachloride and, on the other hand, an alcohol ROH, over a catalytic composition, characterized in that the ...
06/10/1997
5569799Process for the production of chlorinated hydrocarbons and alkenes
The purpose of this invention is to describe a new process for the manufacture of monochloroethane and dichloroethanes which can be decomposed into ethylene (C2 H4) and chloroethene (C2 H3 Cl), respectively, and...
10/29/1996
5495034Method for preparing ଱-substituted ω-hydroperfluoroalkanes
A method for the preparation of ଱-substituted ω-dihydroperluoroalkane derivatives of the general formula H(CF2 CF2)n R wherein R=H or COOH, and n=1-10 is characterized by oxidizing ଱, ଱, ω-trihydro...
02/27/1996
5384415Process for the preparation of brominated compounds, especially from alcohols
A process for the preparation of a brominated compound which comprises the step of reacting at least one compound selected from the group consisting of a chloroformate, a chlorosulfite and a chlorophosphite with a brominating agent for a time sufficient t...
01/24/1995
5354916Low temperature conversion of alkanes
The invention relates to a process for selectively producing alkyl halides from alkanes, such as methane and ethane at low temperatures and low pressures. Optional hydrolysis to the corresponding alcohols may follow. The process involves adding an alkane ...
10/11/1994
5241086Process for the preparation of brominated compounds, especially from alcohols
A process for the preparation of a brominated compound which comprises the step of reacting at least one compound selected from the group consisting of a chloroformate, a chlorosulfite and a chlorophosphite with a brominating agent for a time sufficient t...
08/31/1993
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