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WO/1996/003363A1 |
Olefines are hydroformylated in the presence of rhodium-diphosphine complex compounds as catalysts. The diphosphines have a (Casey) angle of nip of 100 to 160� and a (Tolman) approach angle of 120 to 240 �C and the isomer energy diff...
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WO/1996/002619A1 |
The invention concerns unsaturated fats with improved low-temperature behaviour which are obtained by: (a) dissociating lauric acid oils into fatty acids and glycerol; (b) subjecting the resultant dissociated fatty acids to fractionated ...
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WO/1995/035274A1 |
Method for the manufacture of a compound (I): R-(CH2)n-OH comprising a first stage in which a compound (III): R-(CH2)n-X is reacted at normal atmospheric pressure or in the region thereof, in a polar aprotic solvent on a salt of a carbox...
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WO/1995/032218A1 |
Compounds of formula (I) in which R is a hydroxy, alkoxy, phenylalkyloxy radical or -NH-CH2-COOH, R1 is a hydrogen atom, an adamantylacetyl, adamantylcarbonyl, norbornylacetyl, norbornylphenoxycarbonyl, benzoyl, nicotinoyl, 4-phenylbenzo...
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WO/1995/029952A1 |
A process for recycling polyester contained in waste materials is provided. The polyester is converted into a corresponding acid salt of a polybasic organic acid and a polyol. The process steps generally include first combining materials...
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WO/1995/029154A1 |
Novel compounds of general formula (I) wherein R1-R7 denote, in particular, a straight or branched hydrocarbon radical comprising 1-6 carbon atoms, Z is a straight or branched hydroxycarbon radical comprising 2-6 carbon atoms, a triple b...
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WO/1995/026928A1 |
Vanadium-containing Beta zeolite, and its use as catalyst in organic reactions.
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WO/1995/025080A1 |
A process for producing aldehydes by the hydroformylation of olefins with more than 3 carbon atoms, comprising the hydroformylation stage by means of a rhodium catalyst uniformly dissolved in the reaction medium, the separation of the rh...
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WO/1995/020565A1 |
Separation of ethylene glycol and diethylene glycol from dimethyl terephthalate is accomplished by distillation using methyl benzoate or the methyl ester of p-toluic acid as an azeotropic agent.
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WO/1995/019334A1 |
In a process for producing n-butyraldehyde and/or n-butanol, (a) 1,3-butadiene is reacted with an alcohol having the formula ROH, in which the residue R stands for a non-substituted C2-C20-alkyl or alkenyl group that may also be substitu...
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WO/1995/011210A1 |
The invention concerns a method of producing fatty alcohols with an iodine number between 20 and 110 from vegetable oils, the alcohols consisting essentially of unsaturated fatty alcohols or mixtures of saturated and unsaturated fatty al...
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WO/1995/009139A1 |
A process for the oxidation of alkylaromatic compounds is provided. The process comprises oxidising a substrate alkylaromatic compound with a peroxygen compound in the presence of a source of cerium (III) or (IV), a source of bromide and...
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WO/1995/006746A1 |
A process for preparing acylated alcohols from alcohols is characterised in that the alcohol is reacted with a diketene in the presence of lipase. The process is particularly suitable for the enantioselective acetoacetylation of racemic ...
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WO/1994/026684A1 |
The present invention is an improved process for the recovery of ethylene glycol from spent glycol generated in the manufacture of polyethylene terephthalate. The spent glycol typically consists of metal oxide catalyst residues, low mole...
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WO/1994/023051A1 |
An improved fat splitting process which substantially eliminates the induction period encountered during pressure splitting. A partial hydrolysis is conducted prior to pressure splitting by combining a lipase in the presence of water wit...
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WO/1994/018149A1 |
This invention relates to a process for making 1,3-diols and 3-hydroxyaldehydes by hydroformylating 1,2-epoxides which process comprises intimately contacting (a) a 1,2-epoxide having more than 2 carbon atoms, (b) ditertiary phosphine-mo...
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WO/1994/013613A1 |
Method for the continuous preparation of a mixture of a cycloalkanone, a cycloalkanol and a cycloalkylhydroperoxide, according to which the corresponding cycloalkane is oxidized wherein the cyclic alkane has between 5 and 20 carbon atoms...
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WO/1994/010132A1 |
Substituted benzyl carbamates of formula (I), wherein R is halogen, trifluoromethyl, cyano, nitro or C1-C3haloalkoxy; Z is hydrogen or halogen; or Z and R together in 2- and 3-position of the phenyl ring form the group -OCF2O-; R1 is C1-...
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WO/1994/010121A1 |
Ester bonds are hydrolyzed in the conversion of substantially amorphous polyesters to their monomeric components, by being contacted with a mixture of (a) an alcohol, such as methanol, or glycol, (b) a polar aprotic solvent such as N-met...
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WO/1994/005624A1 |
The present invention discloses cationic lipids useful for making lipid aggregates for delivery of macromolecules and other compounds into cells. They are especially useful for the DNA-dependent transformation of cells. Also disclosed ar...
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WO/1993/025514A1 |
Disclosed is a method for the simultaneous preparation of dicarboxylic acids and diamines from (a) polymers based on polyamides made by reacting dicarboxylic acids or derivatives thereof with diamines or (b) compounds containing essentia...
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WO/1993/024214A1 |
A supported catalyst comprising a carbon fibril aggregate and a catalytically effective amount of a catalyst supported therein, a process for performing a catalytic reaction in fluid phase using the supported catalyst and a process for m...
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WO/1993/024437A1 |
A cobalt value recovery method, especially for use in recovering cobalt catalyst from an aqueous medium obtained in purifying the product of an oxo reaction, in which recovery is effected in a closed cycle using an outboard unit, the aqu...
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WO/1993/020033A1 |
A process for the conversion of cyclohexyl hydroperoxide to cyclohexanone and cyclohexanol by turbulent high-intensity mixing with aqueous caustic containing a metal salt that accelerates the decomposition of cyclohexyl hydroperoxide.
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WO/1992/022521A1 |
Neopentyl glycol is made by reacting isobutyraldehyde with paraformaldehyde in the presence of a tertiary amine and cadmium or yttrium oxide; then hydrogenating the resulting reaction mixture containing hydroxypivaldehyde and at least ab...
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WO/1992/016487A1 |
The invention relates to a process for preparing an alkanone and/or alkanol by oxidizing an alkane with 3-30 C-atoms, using oxygen, to form an alkyl hydroperoxide, followed by a decomposition of the resulting alkyl hydroperoxide in the p...
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WO/1992/012114A1 |
A process for producing an aromatic hydroxy compound by oxidizing directly an aromatic compound with an oxidizing agent, wherein the reaction is conducted in the presence of a catalyst comprising at least one platinum-group metal or its ...
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WO/1992/005132A1 |
Oxo process for preparing higher alcohols by hydrolyzing prior to hydrogenation a demetalled hydroformylation reaction product in the presence of an alumina catalyst having a surface area between 40 to about 60 m2/g.
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WO/1992/004325A1 |
There are disclosed compounds of formula (I), wherein A is alkyl of 3-19 carbon atoms, diloweralkyl vinyl, dihalovinyl, diphenylvinyl, lower alkynyl, (a) or (b); W is -CR2O-, -CH=CH- or -CH=CHCH2O-, X is N or CR; Z is (c), (d), (e), (f),...
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WO/1991/016289A1 |
A method of recovering ethylene glycol and dimethyl terephthalate from scrap polyethylene terephthalate resins by dissolving the scrap in oligomers of the same monomers and passing methanol through the solution.
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WO/1991/013049A1 |
A method for continuously carrying out, in an aqueous medium, a chemical alteration of a hydrophobic organic substance, by means of catalysis thereof in polymeric microregions using a macromolecular catalytic system which is soluble in s...
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WO/1991/009004A1 |
Ester bonds are hydrolyzed, such as in the conversion of polyesters to their monomeric components, by being contacted with a mixture of (a) an alcohol, such as methanol, or glycol, (b) a polar aprotic solvent such as N-methyl-pyrrolidone...
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WO/1991/008047A1 |
Process for preparing one or more hetero-atom containing hydrocarbons by contacting one or more hydrocarbons with a plasma-generated system derived from a source containing hydrogen atoms(s) and at least one hetero-atom in wich process t...
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WO/1991/008185A1 |
A process for producing methacrolein and methacrylic acid by the vapor phase catalytic oxidation of at least one of isobutylene, t-butanol and methyl t-butyl ether with molecular oxygen or a gas containing the same in a fixed bed multitu...
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WO/1990/014325A1 |
The invention relates to a process for producing methacrylic acid and methacrolein, which comprises catalytically oxidizing isobutane in a gas phase in the presence of molecular oxygen to produce methacrylic acid and methacrolein in one ...
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WO/1990/014258A1 |
In a braking installation with a main brake cylinder (1), two braking circuits and an anti-lock and drive slip control device, these controls are operated by a feed pump (32). This feed pump (32) is linked to a store (19) which is connec...
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WO/1990/008590A1 |
A process for reacting a fluid phase (gaseous and/or liquid phase) in contact with a solid phase in a reaction zone, wherein the improvement in said process comprises reacting the fluid phase in contact with the solid phase in a horizont...
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WO/1990/008120A1 |
Olefins are converted to alcohols and/or ethers employing, as catalyst, an acidic zeolite which has been bound with an essentially non-acidic refractory oxide of at least one metal of Group IVA and/or IVB of the Periodic Table of Element...
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WO/1990/007480A1 |
The present invention provides a process for the conversion of a reactant into a reaction product in the presence of a solid acid catalyst comprising one or more fluorine atoms, sulfo radicals and phosphono radicals, each such radical be...
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WO/1990/006283A1 |
A synthetic porous crystalline material characterized by an X-ray diffraction pattern exhibiting values substantially as set forth in Table (I) of the specification is prepared from a reaction mixture containing sodium cations, a source ...
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WO/1990/005126A1 |
Saturated hydrocarbon chains are oxidised using a titanium containing silicalite catalyst having an infrared absorption band around 950 cm-1 preferably in solutions, the chains may be alkanes or alkyl groups of alkyl cyclic compounds.
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WO/1989/010911A1 |
An alcohol and/or an ether is produced from a carboxylic acid ester by reacting the ester with hydrogen at elevated temperature in the presence as catalyst of a composition comprising an alloy of (i) at least one noble metal of Group VII...
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WO/1989/009201A1 |
The present invention concerns a procedure for preparing alcohols and aldehydes from alkenes and synthesis gas by a heterogeneous hydroformulation reaction in which the catalyst system is composed of Ru3(CO)12 and a heterocyclic base in ...
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WO/1989/008450A1 |
Azadecalins and decalins with protective substitutions intended to confer increased resistance to 7alpha-hydroxylase while retaining squalene oxide cyclase inhibitory activity are useful as inhibitors of cholesterol synthesis and hence m...
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WO/1989/006642A2 |
Disclosed is a process for the purification of carbon monoxide and/or hydrogen-containing gas streams employed for chemical conversion reactions by contacting such gas feed streams with the oxygenated organic reaction products obtained i...
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WO/1988/009781A1 |
This invention relates to a process for preparing dihydroxynaphthalene which comprises hydrolyzing diacyloxynaphthalene in a solvent containing water in the presence of an acid catalyst. Since an acid is used as a catalyst for the hydrol...
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WO/1988/007988A1 |
Disclosed are tetraphenyl porphyrins which are beta-substituted by fluoro or chloro and/or bear electronegative substituents on the phenyl including one or two water solubilizing substituents. The new porphorins are particularly suitable...
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WO/1988/007515A1 |
An alcohol and/or a carboxylic acid ester is produced from a carboxylic acid or anhydride thereof by reacting the acid or anhydride with hydrogen at elevated temperature in the presence as catalyst of a composition comprising an alloy of...
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WO/1988/005767A1 |
A continuous process for hydrogenating an unsaturated organic compound to a corresponding hydrogenation product which process comprises: (a) providing a hydrogenation plant comprising first and second hydrogenation zones connected in ser...
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WO/1988/005771A1 |
Ketones or aldehydes containing one or more carbon-carbon double bonds and a carbonyl group conjugated with at least one double bond are hydrolyzed by the action of heat and pressure in the presence of water by a batch or continuous proc...
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