U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Quotables

"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."

Lee deForest, American radio pioneer ; 1957

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 570/247 - Catalyst or reaction directing agent utilized


Subclass of Class 570 - Organic compounds -- part of the class 532-570 series
Definition: Process including a catalyst which promotes the reaction
No. of patents: 38
Last issue date: 03/02/2010


NumberTitleIssue Date
7671244Method for producing 1,2-dichloroethane by means of direct chlorination
The invention relates to a method for producing high-purity 1,2-dichloroethane from dissolved chlorine and dissolved ethylene which are brought into contact with each other using a circulating liquid reaction medium which essentially consists of 1,2-dichloroethane a...
03/02/2010
7579509Method and device for producing 1,2-dichlorethane by means of direct chlorination
The invention refers to a process for the production of high-purity 1,2-dichloroethane from dissolved chlorine and dissolved ethylene, which are brought into contact with each other in a circulating liquid reaction fluid, which mainly consists of 1,2-dichlorethane a...
08/25/2009
7348461Processes for halogenating compounds
Methods and materials are provided for the production of essentially isomerically pure perhalogenated and partially halogenated compounds. One embodiment of the present invention provides a process for the production of essentially isomerically pure CFC-216aa. Other...
03/25/2008
7132578One-step synthesis of CF-1
A process for the preparation of trifluoromethyl iodide is provided. The process includes the step of contacting in a reactor a compound represented by the formula: CF3—W and a compound represented by the for...
11/07/2006
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
7009084Method for producing 1, 2-dichloroethane by direct chlorination
The invention relates to a method for producing high purity 1,2-dichloroethane using a liquid reaction medium that is circulated and that is essentially composed of 1,2-dichloroethane and a catalyst. At least ethylene and chlorine are added to the reaction medium an...
03/07/2006
6984763Oxidative 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
6977316Direct 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
6933417Process 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
6909024Process 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
6841708Method of producing ethylene (di)chloride (EDC)
With a method or a device for producing 1,2-dichloroethane or ethylene (di)chloride (EDC) with the use of a circulating reaction medium and a catalyst, whereby ethylene and chlorine are supplied to the reaction medium, the goal is to permit the catalytic chlorinatio...
01/11/2005
6756513Process for preparing monochlorinated hydrocarbons having a high isomeric purity
Monochlorinated hydrocarbons of high isomeric purity are prepared by a process, which comprises: reacting a monoalcohol having an alkyl radical having from 3 to 20 carbon atoms with cyanuric chloride; and purifying the resulting monochlorinated hydroca...
06/29/2004
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
6229059Process for the production of 1, 2-dichloroethane
Using a process for the production of 1,2-dichloroethane by reacting ethylene and chlorine in the liquid phase in the presence of a catalyst, the 1,2-dichloroethane produced being drawn off in the gaseous phase, the high-boilers being separated from the 1...
05/08/2001
6204419Process and apparatus for preparing 1,2-dichloroethane by direct chlorination
Process and apparatus for preparing 1,2-Dichloroethane by direct chlorination If in the reaction of ethylene with chlorine to form 1,2-dichloroethane (EDC) the catalyst components sodium chloride and iron(III) chloride are used in a molar ratio of below 0...
03/20/2001
5986152Supported 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
5696309Purification of halogenated carbon compounds
Disclosed is a method of chlorinating vinylidene chloride contained in a solution 1,1 -dichloro-1-fluoroethane to provide a chlorinated compound having a boiling point different from the 1,1-dichloro-1-fluoroethane to permit separation therefrom. The meth...
12/09/1997
5569798Chlorination of halogenated carbon compounds for purification purposes
A method of chlorinating vinylidene chloride contained in a solution 1,1-dichloro-1-fluoroethane to provide a chlorinated compound having a boiling point different from the 1,1-dichloro-1-fluoroethane to permit separation therefrom, the method comprising ...
10/29/1996
5527975Process 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
5315052Concurrent production of trichloroethane isomers
1,1,1-Trichloroethane (viz., methylchloroform) and 1,1,2-trichloroethane are produced in the same reactor by feeding molecular chlorine and chloroethene (viz., vinyl chloride) as well as 1,1-dichloroethane to the reactor. The ratios at which the two trich...
05/24/1994
4922042Production of 1,2-dichloroethane
Process for the production of 1,2-dichloroethane by the reaction between ethylene and chlorine in the vapor phase in the presence of a catalyst comprising alumina, wherein the reaction is carried out using a fluidized bed comprising fluidizable, substanti...
05/01/1990
4873384Method for producing dichloroethane
A method for producing dichloroethane (EDC) by reacting ethylene and chlorine in a liquid reaction medium composed mainly of EDC at a temperature of not less than the boiling point of EDC measured at ordinary pressure, characterized by leading the vapor o...
10/10/1989
4832873Process for producing polybrominated higher alkylbenzenes
Polybrominated higher alkylbenzenes may be produced by reacting the corresponding hydrocarbon material with bromine chloride in an excess bromine reaction medium in the presence of an antimony halide catalyst....
05/23/1989
4783564Method for the preparation of 1,2-dichloroethane
A method is disclosed for the preparation of 1,2-dichloroethane in a reactor by the reaction of gaseous ethylene with chlorine dissolved in a hot, catalyst-containing, liquid circulating stream that is under elevated pressure and consists of chlorinated h...
11/08/1988
4774372Method for producing dichloroethane
A method for producing dichloroethane (EDC) from ethylene and chlorine in high selectivity, yield and efficiency and in high safety wherein the unreacted ethylene and oxygen included in an exhaust gas discharged from a reactor are prevented from forming a...
09/27/1988
4774373Process for making 1,2-dichloroethane
The disclosure relates to a process for making 1,2-dichloroethane by reacting ethylene with chlorine in a solvent in the presence of a catalyst, at a temperature of about 20° to 200° C. at atmospheric or elevated pressure, and distillatively separating ...
09/27/1988
4754088Process 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
4672142Process for making 1,2-dichloroethane
The disclosure relates to a process for making 1,2-dichloroethane by reacting ethylene and chlorine in a reaction zone having a liquid medium containing chlorinated C2 -hydrocarbons circulated therein. To this end, the disclosure provides: (a) ...
06/09/1987
4410747Process for producing 1,2-dichloroethane
In the technology for producing 1,2-dichloroethane by reacting ethylene with chlorine by a liquid phase reaction at 65° to 160° C. in 1,2-dichloroethane containing a metal chloride catalyst, there is a disadvantage of a side reaction for producing 1,1,2...
10/18/1983
4329323Process for removing ethylene and vinyl chloride from gas stream
A process for removing ethylene and vinyl chloride from a gas stream containing them by passing a mixed gas containing ethylene, vinyl chloride and a necessary amount of chlorine through a fixed-bed reactor charged with as a catalyst an activated alumina ...
05/11/1982
4259264Process for the continuous chlorination of olefins in the liquid phase and an apparatus for carrying out the process
In the chlorination of ethylene in the liquid phase, an excess stoichiometric amount of chlorine is normally used in order to achieve as complete as possible a conversion of the ethylene. Part of the excess chlorine reacts by substitution and thereby redu...
03/31/1981
4226812Process for producing chlorotrifluoroethylene
An improved process is described for producing chlorotrifluoroethylene, a useful monomer for making high strength chlorofluoropolymers, comprising passing a mixture of 1,1,2-trichloro-1,2,2-trifluoroethane, ethylene, hydrogen chloride and elemental oxygen...
10/07/1980
4072728Process for the preparation of 1,2-dichloroethane in two reaction zones by reacting chlorine with not more than 102 mole percent of ethylene
An improved process for the production of 1,2-dichloroethane in which chlorine and ethylene are reacted in the liquid phase in the absence of light and in the presence of a Lewis acid catalyst wherein all of the chlorine used in the reaction and a fractio...
02/07/1978
4034049Mo catalyzed chlorination of dichlorobutenes
Meso-1,2,3,4-tetrachlorobutane is produced in an improved liquid phase chlorination process wherein the trans-1,4-dichlorobutene-2 is contacted with chlorine in the presence of a catalytic amount of molybdenum....
07/05/1977
4029714Ethylene/chlorine elimination process
An improvement in a process for recovering residual amounts of ethylene in ethylene chlorination effluents is disclosed, whereby ureacted chlorine is virtually eliminated. Elimination of the chlorine is accomplished by reacting it with the clorinated hydr...
06/14/1977
3980725Meso-1,2,3,4-tetrachlorobutane production
Meso-1,2,3,4-tetrachlorobutane is produced in an improved liquid phase chlorination process wherein trans-1,4-dichlorobutene-2 is contacted with chlorine in the additional presence of an effective amount of nitric oxide....
09/14/1976
3968179Selective preparation of 1,2-dichloroethane
A process for the continuous chlorination of ethylene in the liquid phase in the absence of light and in the presence of 1,2-dichloroethane and dissolved ferric chloride wherein the reaction is carried out in a homogeneous reaction zone in which the react...
07/06/1976
 
Sign InRegister
Username  
Password   
forgot password?