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

Icon_funbox Celebrity Inventors

Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.

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 570/254 - Inorganic metal containing catalyst or reaction directing agent utilized


Subclass of Class 570 - Organic compounds -- part of the class 532-570 series
Definition: Process wherein the catalyst or reaction directing agent
No. of patents: 36
Last issue date: 01/18/2011


NumberTitleIssue Date
7872164Process for producing 4,9-dibromodiamantane
A process for selectively producing 4,9-dibromodiamantane includes a step of reacting diamantane with bromine in the presence of a Lewis acid and a solvent, wherein the solvent comprises a substituted or unsubstituted, straight-chain, branched-chain or cyclic satura...
01/18/2011
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
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
6452058Oxidative halogenation of C1 hydrocarbons to halogenated C1 hydrocarbons and integrated processes related thereto
An oxidative halogenation process involving contacting a reactant hydrocarbon selected from methane, a halogenated C1 hydrocarbon, or a mixture thereof with a source of halogen and, preferably, a source of oxygen in the presence of a rare earth...
09/17/2002
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
5099085Chlorination reactions and oxychlorination reactions in the presence of honeycomb monolithic catalyst supports
The use of hitherto known supported catalysts in chlorination processes and oxychlorination processes leads to high pressure drops and to the formation of hot spot temperatures in the reactor. When honeycomb monolithic catalyst supports provided with a mu...
03/24/1992
5015685Preparation of tetrabromotetralin
The novel compound 5,6,7,8-tetrabromo-1,2,3,4-tetrahydro-naphthalene (tetrabromotetralin) of the formula: ##STR1## was prepared using 1,2,3,4-tetrahydro-naphthalene as the starting compound. Tetrabromotetralin was employed to prepare flame-retardant ...
05/14/1991
4990708Process for the preparation of dibromomethane
A process for the preparation of dibromomethane is described, in which gaseous methyl bromide and bromide are reacted as temperatures of 300° C. or higher. The reaction is highly selective to DBM and almost quantitative Br2 conversion is obtai...
02/05/1991
4945186Method of producing 3-bromobenzaldehyde
A method of producing 3-bromobenzaldehyde is disclosed, wherein, upon producing 3-bromobenzaldehyde by allowing benzaldehyde to react with bromine in the presence of brominating catalyst in 1,2-dichloroethane being a reaction solvent, 1,2-dichloroethane h...
07/31/1990
4827060Removal 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
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
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
4760207Recovery 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
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
4650916Removal of molecular chlorine from 1,2-dichloroethane compositions contaminated with molecular chlorine
Olefins containing at least 7 carbon atoms are used to remove molecular chlorine form compositions comprising 1,2-dichloroethane and a contaminating amount of molecular chlorine....
03/17/1987
4590317Process 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
4554392Method of preparing 1,2-dichloroethane from ethylene and chlorine gas
In this method of producing 1,2-dichloroethane from ethylene and chlorine gas in an approximately equimolar ratio at reaction pressures between 2 and 20 bar, at ethylene dichloride boiling temperatures between 105° and 225° C., in the presence of cataly...
11/19/1985
4547599Process for scavenging free chlorine in an ethylene dichloride stream
A trace amount of free chlorine, present along with comparable amounts of ethylene, oxygen and water vapor in the ethylene dichloride (EDC) effluent from a direct chlorination reactor, may be effectively scavenged by exposing the effluent to ultraviolet (...
10/15/1985
4528174Method for preparing hydrogen chloride for the ethyleneoxichlorination process
A method for preparing hydrogen chloride resulting from chlorination reactions for use in the ethyleneoxichlorination process by reacting the chlorine contained in the hydrogen chloride with ethylene in the gaseous phase in the presence of carrier catalys...
07/09/1985
4523040Methyl halides and methyl alcohol from methane
This invention relates to solid acidic or metal catalyst-promoted halogenation of methane to produce methyl monohalides in high selectivity. Concurrent or simultaneous hydrolysis provides methyl alcohol and/or dimethyl ether in good yields....
06/11/1985
4513154Process for consecutive competitive gas phase reaction
A process for consecutive-competitive gas phase halogenation of organic compounds, i.e. alkanes, alkenes and benzene, alkyl benzenes and alkenyl benzenes containing labile hydrogens and having no more than 12 and 9 carbon atoms, respectively, in a thin re...
04/23/1985
4351972Process for making anhydrous alkyl iodides
The invention relates to the production of anhydrous alkyl iodides. To this end, carboxylic acid alkyl esters of the formula R1 COOR2, in which R1 stands for hydrogen or an alkyl or aryl radical having from 1 to 8 carbon a...
09/28/1982
4347391Process for preparing ethylene dichloride
Method of producing ethylene dichloride characterized by reaction of ethylene and chlorine in a reaction zone containing a circulating medium and maintained below the vaporization point of the medium, and utilization of the heat from the reaction to vapor...
08/31/1982
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
4211728Method 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
4197262Preparation of organic halides
Organic halides containing at least one halogen-replaceable bromine atom are reacted with chlorine in the presence of a catalyst selected from the group consisting of the halides of antimony, tin, zinc, or vanadium to form a corresponding organic halide h...
04/08/1980
4148832Continuous process for the chlorination of 1,1,1,-trichloroethane or mixtures thereof
A continuous process for chlorination of 1,1,1-trichloroethane alone or in admixture with other aliphatic chlorinated C1 to C4 hydrocarbons in a liquid phase reaction with molecular chlorine in the presence of a catalyst selected fro...
04/10/1979
4060499Copper chloride/boron nitride catalyst for substitution chlorination
A catalyst consisting essentially of cuprous chloride intercalated in crystalline boron nitride, containing at least 10% copper, useful for substitution chlorination of organic substances in vapor phase at elevated temperature by action of chlorine or HCL...
11/29/1977
4046823Process for producing 1,2-dichloroethane
1,2-dichloroethane is produced by reacting, in a vapor phase, chlorine and ethane in the presence of a copper containing catalyst at a temperature in the range of from about 200° to about 500° C....
09/06/1977
4044113Preparation of bromine
Bromine is produced by reacting chlorine and ethylene dibromide in the presence of an iron halide catalyst, e.g. ferric chloride....
08/23/1977
4012306Production of highly soluble, solid, resinous, highly chlorinated alpha-olefinic hydrocarbon material
Highly soluble solid resinous highly chlorinated alpha-olefinic hydrocarbon material contains above about 65% chlorine, has a ring and ball softening point of above about 90° C, and is completely soluble and gel-free initially and after 24 hours in xylen...
03/15/1977
3961033Preparation of bromine
Bromine is produced by reacting chlorine and ethylene dibromide in the presence of an aluminum halide catalyst, e.g. aluminum chloride. A small amount of bromine present prior to chlorine addition shortens the induction period. Some decomposition of the o...
06/01/1976
3951770Hydrocarbon conversion
Chemical processing of normal-paraffin hydrocarbons may be carried out with increased selectivity by use of a normal-paraffin hydrocarbon reactant which is adsorbed on the surface of a solid adsorbent such as diatomaceous earth prior to treatment in a fre...
04/20/1976
 
Sign InRegister
Username  
Password   
forgot password?