| Patent Number |
Title Of Patent |
Date Issued |
| 6525228 |
Process of telomerizing conjugated dienes |
February 25, 2003 |
| The present invention is related to a process for telomerizing a conjugated diene which comprises reacting said conjugated diene with a compound containing active hydrogen in the presence of a catalyst system comprising at least one transition metal compound, at least one phosphorus-cont |
| 6040263 |
Catalytic composition based on transition metal complexes, and a process for the hydrogenation o |
March 21, 2000 |
| A novel non-aqueous catalytic composition comprises at least one quaternary ammonium and/or phosphonium salt in which the anion is selected from the group consisting of tetrafluoroborate, tetrachloroborate, hexafluorophosphate, hexafluoroantimonate, hexafluoroarsenate, trifluorosulph |
| 5877376 |
Conversion of ethylene into butene-1 using additives based on quarternary ammonium salts |
March 2, 1999 |
| The invention concerns an improved process for the conversion of ethylene into butene-1, wherein the ethylene is brought into contact with a catalyst obtained by the reaction of an alkyl titanate, possibly mixed with an ether, with a compound of aluminium of the formula AlR.sub.3 or |
| 5874638 |
Process for hydroformylation of olefinic compounds |
February 23, 1999 |
| A hydroformylation process for unsaturated compounds such as monoolefins and diolefins is carried out in an ionic medium in which the catalytic species is dissolved, but in which the reaction products (aldehydes) formed are only slightly soluble or are insoluble. The ionic medium is |
| 5852130 |
Catalytic composition based on transition metal complexes, and a process for the hydrogenation o |
December 22, 1998 |
| A novel catalytic composition comprises at least one quaternary ammonium and/or phosphonium salt in which the anion is selected from the group formed by tetrafluoroborate, tetrachloroborate, hexafluorophosphate, hexafluoroantimonate, hexafluoroarsenate, trifluorosulphonate, fluorosul |
| 5792895 |
Process for the conversion of ethylene into but-1-ene using additives based on polymethylene gly |
August 11, 1998 |
| The invention concerns an improved process for the conversion of ethylene into but-1-ene, wherein the ethylene is brought into contact with a catalyst obtained by the interaction of an alkyl titanate, possibly mixed with an ether, with a compound of aluminium of the formula AlR.sub.3 or |
| 5780702 |
Process for displacing the double bond in olefins using a catalytic composition based on transit |
July 14, 1998 |
| A catalytic composition comprises at least one quaternary ammonium and/or phosphonium salt in which the anion is preferably selected from the group formed by tetrafluoroborate, tetrachloroborate, hexafluorophosphate, hexafluoroantimonate, hexafluoroarsenate, trifluorosulphonate, fluo |
| 5750455 |
Catalytic composition and process for the alkylation of aliphatic hydrocarbons |
May 12, 1998 |
| The invention concerns a catalytic composition resulting from mixing at least one aluminum halide, at least one quaternary ammonium halide and/or at least one amine halohydrate and at least one cuprous compound, preferable a halide. The invention also concerns a process for the alkyl |
| 5723712 |
Catalytic composition for biphase catalysis, in particular using nickel complexes, and a process |
March 3, 1998 |
| A novel catalytic composition comprises a mixture of lithium halide, a hydrocarbylaluminium halide and at least one compound of a catalytic element, in particular a nickel complex. The invention also concerns a process for the oligomerisation and co-oligomerisation of olefins catalys |
| 5693585 |
Aliphatic alkylation catalyst comprising an active phase containing a cuprous compound on a supp |
December 2, 1997 |
| A catalyst containing a porous organic or mineral support and at least one active phase having at least one aluminum halide, at least one compound selected for quaternary ammonium halides and amine hydrohalides, and at least one cuprous compound, the support having been impregnated with |
| 5675051 |
Catalytic composition and olefin disproportion process |
October 7, 1997 |
| The invention concerns a catalytic olefin disproportion (also known as metathesis) process wherein the catalyst produced by dissolving a tungsten and/or molybdenum compound, more particularly a tungsten and/or molybdenum halide substituted with one or more phenoxo groups containing at le |
| 5633416 |
Fuel produced by a process comprising etherification of a hydrocarbon fraction comprising olefin |
May 27, 1997 |
| An internal combustion engine fuel is produced from a mixture of hydrocarbons comprising olefinic hydrocarbons containing 5 to 8 carbon atoms characterized in that it is produced by a process comprising a) a catalytic etherification step for at least a portion of the etherifiable ole |
| 5589601 |
Process for the dimerization, co-dimerization and oligomerization of olefins |
December 31, 1996 |
| The invention concerns a process for dimerization, co-dimerization and oligomerization of olefins, in particular .alpha.-olefins, with a catalytic composition resulting from a mixing at least one tungsten oxyhalide, at least one aryl isocyanate of diisocyanate, and at least one alkyl |
| 5550306 |
Catalytic process for the dimerization of olefins |
August 27, 1996 |
| The invention is concerned with a process for the dimerization, co-dimerization and oligomerization of olefins with a catalytic composition resulting from mixing at least one quaternary ammonium halide and/or at least one quaternary phosphonium halide, at least one aluminum halide, a |
| 5550304 |
Nickel-containing composition for catalysis and olefin dimerisation and oligomerisation process |
August 27, 1996 |
| The invention concerns a catalytic composition and a process for the dimerisation, codimerisation or oligomerisation of olefins, said composition comprising a mixture of at least one bivalent nickel complex which contains two tertiary phosphine molecules, at least one nickel complex |
| 5536689 |
Catalytic composition and a process for the dimerization of olefins |
July 16, 1996 |
| The invention is concerned with a catalytic composition resulting from dissolving a nickel complex mixed or complexed with a tertiary phosphine in the medium resulting from mixing at least one quaternary ammonium halide and/or at least one quaternary phosphonium halide, at least one |
| 5525567 |
Catalytic composition and olefin disproportion process |
June 11, 1996 |
| The invention concerns a catalytic composition for olefin disproportion (also known as metathesis) produced by dissolving a tungsten and/or molybdenum compound, more particularly a tungsten and/or molybdenum halide substituted with one or more phenoxo groups containing at least two h |
| 5519742 |
Process for replacing a worn steam generator of a pressurized water nuclear reactor |
May 21, 1996 |
| The process comprises separating the worn steam generator from the primary circuit of the reactor by cutting pipes of the primary circuit, extracting the worn steam generator from the reactor and placing in position in the reactor a new replacement steam generator (21) and connecting by |
| 5502018 |
Nickel-containing composition for catalysis and olefin dimerisation and oligomerisation process |
March 26, 1996 |
| The invention concerns a catalytic composition and a process for the dimerization, codimerization or oligomerization of olefins, said composition comprising a mixture of at least one bivalent nickel complex which contains two tertiary phosphine molecules, at least one nickel compound |
| 5496783 |
Catalyst for the production of light alpha olefins by oligomerization of ethylene |
March 5, 1996 |
| Process for oligomerizing ethylene into light alpha olefins, mainly 1-butene, 1-hexene, 1-octene and 1-decene, in which the ethylene is contacted with a catalyst obtained by mixing a zirconium compound with an organic compound chosen from within the class of acetals and ketals and wi |
| 5476956 |
Process for codimerization of dienes and olefins |
December 19, 1995 |
| Co dimerization is conducted of at least one monoolefin, for example a monoolefinic hydrocarbon such as ethylene, propylene or 1-butene, a halogenated monoolefin such as vinyl chloride, or an olefinic functional compound such as methyl acrylate, acrylonitrile, allyl acetate or vinyl |
| 5449852 |
Process for the metathesis of olefins with an improved rhenium catalyst |
September 12, 1995 |
| A process for the metathesis of olefins, wherein the olefins are reacted in contact with an improved catalyst comprising a niobium and/or tantalum compound and a rhenium compound on a porous support containing at least 75% alumina and having a surface area of at least 10 m.sup.2 /g. |
| 5434282 |
Double-branched compounds and processes for their production |
July 18, 1995 |
| A novel family of chemical compounds derived from fatty compounds has two branches of two carbon atoms on the linear chain and general formula C.sub.21 H.sub.39 COOR where R represents a hydrogen atom, a lower alkyl radical or a glyceryl radical. Particular compounds for consideration ha |
| 5345023 |
Process for the production of light alpha olefins by oligomerization of ethylene |
September 6, 1994 |
| Process for oligomerizing ethylene into light alpha olefins, mainly 1-butene, 1-hexene, 1-octene and 1-decene, in which the ethylene is contacted with a catalyst obtained by mixing a zirconium compound with an organic compound chosen from within the class of acetals and ketals and wi |
| 5292979 |
Method for converting ethylene into light alpha olefins |
March 8, 1994 |
| Process for the conversion of ethylene into light alpha olefins, mainly 1-butene, 1-hexene and 1-octene, in which the ethylene is contacted with a catalyst obtained by reacting a performed mixture of alkyl zirconate and ether with a chlorine or bromine-containing aluminum compound. |
| 5104840 |
Non-aqueous liquid composition with an ionic character and its use as a solvent |
April 14, 1992 |
| A non-aqueous liquid composition with an ionic character resulting from the contacting of at least one alkylaluminum dihalide with at least one quaternary ammonium halide and/or at least one quaternary phosphonium halide, said composition being liquid below 80.degree. C., for example, |
| 5095162 |
Catalytic composition and its use in oligomerizing monoolefins |
March 10, 1992 |
| The invention concerns a catalytic composition resulting from placing at least one divalent nickel compound into contact with at least one hydrocarbylaluminum halide and at least one epoxy compound, in any order. It also concerns the use of the catalytic composition in a process of o |
| 5059571 |
Catalytic composition and its use in oligomerizing monoolefins |
October 22, 1991 |
| The invention concerns a catalytic composition resulting from placing at least one divalent nickel compound into contact with at least one hydrocarbylaluminum halide and at least one epoxy compound, in any order. It also concerns the use of the catalytic composition in a process of o |
| 5043953 |
Pressure compensation device for an immersed volume of gas, in particular for an underwater elec |
August 27, 1991 |
| This pressure compensating device for a volume of immersed gas is equipped with mobile or deformable walls and includes an immersed compensation bladder. The bladder is secured in a housing and communicates with the volume to be compensated. It is arranged by mounting means roughly at th |
| 5030789 |
Catalytic method for the dimerization, codimerization or oligomerization of olefins with the use |
July 9, 1991 |
| The invention provides a catalytic method for the dimerization or codimerization or oligomerization, in particular selective, of olefins, carried out under pressure, in a reaction zone 1 containing a solid catalyst bed in which is disposed a plurality of hollow internal spaces 6.3a d |
| 4943669 |
Method according to the invention is notably applied to the selective dimerization of propylene |
July 24, 1990 |
| The invention provides a catalytic method for the dimerization or codimerization or oligomerization, particularly selectively, of olefins, carried out under pressure, in a reaction zone 1 containing a solid catalyst bed into which is disposed a plurality of hollow internal spaces 6.3 |
| 4845201 |
Process for producing organolanthanides, the resultant compounds and their use |
July 4, 1989 |
| A process for producing organolanthanides by reaction of a rare-earth metal with an unsaturated compound in an ether medium, the resultant compounds and the use of these compounds in organic synthesis and for catalysis is disclosed. The process is conducted at -80.degree. to +100.degree. |
| 4795734 |
Rhenium-containing catalyst for the production of olefins by metathesis |
January 3, 1989 |
| Process for manufacturing a rhenium-containing catalyst comprising three steps of:dry impregnation of an alumina-containing porous carrier, at a temperature lower than 80.degree. C., for at least 10 hours,first thermal treatment at 85.degree.-250.degree. C., andsecond thermal treatment at 40 |
| 4691048 |
Process for reducing carbonylation of aldehydes, uses as hemiacetalesters, catalyzed by cobalt c |
September 1, 1987 |
| The invention concerns a process for reducing carbonylation of an aldehyde wherein the aldehyde is used as hemiacetalester, the reaction being conducted in the presence of a catalyst consisting of a cobalt carbonyl complex.The hemiacetal-ester may be formed in situ by reacting an acetal |
| 4642408 |
Method for the removal of nickel, aluminum and chlorine from olefin oligomers |
February 10, 1987 |
| Nickel, aluminum and chlorine derivatives which remain dissolved in olefin oligomers after oligomerization in the presence of a catalyst comprising nickel, aluminum and chlorine compounds, are removed from the crude product by treatment with:oxygen or a gas containing oxygen,anhydrous am |
| 4628065 |
Process for methanol synthesis from carbon oxides and hydrogen in the presence of a soluble copp |
December 9, 1986 |
| The invention has as an object a process for methanol synthesis from carbon oxides and hydrogen, performed in an inert liquid medium, in the presence of a catalyst system soluble in the liquid medium.The catalyst system used according to the invention is obtained by reacting a copper com |
| 4615998 |
Catalyst suitable for synthesizing 1-butene by dimerization of ethylene |
October 7, 1986 |
| A catalyst is formed by reacting, in a hydrocarbon medium, a trialkylaluminum with a mixture of an alkyl titanate with an ether. The activity and the selectivity are improved when adding the trialkylaluminum to a pre-formed mixture of alkyl titanate with ether. |
| 4613726 |
Process for removing nickel, aluminum and chlorine from olefin oligomers |
September 23, 1986 |
| Nickel, aluminum and chlorine derivatives which remain dissolved in olefin oligomers, after oligomerization in the presence of a nickel, aluminum, and chlorine-containing catalysts, are removed by successive treatments with:(a) anhydrous ammonia,(b) an aqueous solution of alkali metal hy |
| 4533500 |
Process for manufacturing N-acyliminodiacetic acids |
August 6, 1985 |
| N-acyliminodiacetic acids are manufactured by reacting formaldehyde or a formaldehyde generator compound with a N-unsubstituted amide or a generator thereof and with carbon monoxide in contact with a carbonylation catalyst, for example, a cobalt compound, the ratio of the aldehyde groups |
| 4532370 |
Process for synthesizing 1-butene by dimerization of ethylene |
July 30, 1985 |
| Process for synthesizing 1-butene by dimerization of ethylene, in the presence of a catalyst formed by reacting, in a hydrocarbon medium, a trialkylaluminum with a mixture of an alkyl titanate with an ether. The activity and the selectivity are improved when adding the ether to a pre |
| 4511743 |
Process for homologating alcohols through the intermediate production of ketals with cobalt carb |
April 16, 1985 |
| Process for the homologation of an alcohol wherein a ketal of the alcohol is reacted with hydrogen and carbon monoxide in the presence of a cobalt carbonyl complex and the resultant product is hydrolyzed to yield the aldehyde with one more carbon atom. |
| 4497910 |
Process for methane synthesis by catalytic reduction of carbon monoxide in aqueous phase |
February 5, 1985 |
| Process for the catalytic synthesis of methane by reaction of carbon oxides with hydrogen in the presence of liquid water, wherein the catalyst is formed of a carrier consisting either of coal or charcoal, preferably of plant origin, or of alumina-silica, on which is deposited ruthenium, |
| 4424282 |
Process for the catalytic synthesis of hydrocarbons, particularly of methane, from hydrogen and |
January 3, 1984 |
| Methane is produced by passing hydrogen, carbon monoxide and an aqueous liquid phase downwardly through a fixed bed of a catalyst containing ruthenium on a carrier such as alumina, separating and externally coolng in a heat exchanger the resultant aqueous phase before recycling, thereby |
| 4398049 |
Oligomerization catalyst and process |
August 9, 1983 |
| A catalyst composition is manufactured by admixing a hydrocarbyl aluminum halide of a nickel compound of the formula (R.sub.1 COO)(R.sub.2 COO)Ni, where R.sub.1 is hydrocarbyl with at least 5 carbon atoms and R.sub.2 is haloalkyl of 1-3 carbon atoms. Olefins such as ethylene, propylene a |
| 4390431 |
Process for treating aqueous streams containing aluminum |
June 28, 1983 |
| A process for treating an aqueous phase obtained by acidic or basic washing of a hydrocarbon phase comprising a soluble aluminum compound in solution, characterized in that it is neutralized at a pH of from 6 to 8.5, treated with an additive selected from the alkaline-earth metal oxides, |
| 4387262 |
Process for oligomerizing olefins |
June 7, 1983 |
| A process for oligomerizing olefins uses a catalyst composition obtained by contacting (a) bivalent nickel compound with (b) a hydrocarbylaluminum compound of the formula Al R.sub.x X.sub.y where R is a monovalent hydrocarbon radical, X is halogen, x is from 1 to 1.5, y is from 1.5 to 2, |
| 4371627 |
Process for the catalytic synthesis of methane by reacting hydrogen with carbon monoxide |
February 1, 1983 |
| Methane is obtained by reacting hydrogen with carbon monoxide in the presence of a catalyst manufactured by reacting a nickel compound with a reducing aluminum compound in the presence of a titanium compound. The aluminum compound is preferably a trialkylaluminum compound and the atomic |
| 4366087 |
Oligomerization catalyst and process |
December 28, 1982 |
| A catalyst composition is manufactured by admixing a hydrocarbyl aluminum halide with a nickel compound of the formula (R.sub.1 COO) (R.sub.2 COO) Ni, wherein R.sub.1 is hydrocarbyl of at least 5 carbon atoms and R.sub.2 is haloalkyl of 1-3 carbon atoms. Olefins such as ethylene, propyle |
| 4362650 |
Catalyst and process for olefin oligomerization |
December 7, 1982 |
| An improved catalyst composition is obtained by contacting at least one bivalent nickel compound with at least one hydrocarbyl aluminum halide, at least one Bronsted organic acid and at least one anhydride of a carboxylic acid. The composition can be used as a catalyst for olefin oli |
| 4320243 |
Process for producing propene and/or butene oligomers |
March 16, 1982 |
| At least one of propene and butene is oligomerized, preferably dimerized, in an elongate cylindrical reaction zone. A recycle flow and the fresh feed charge are injected tangentially into said reaction zone. The catalyst preferably comprises a nickel compound and a hydrocarbyl aluminum |
