| Document |
Document Title |
|
WO/2002/094433 |
A process is provided for treating a basic metal oxide olefin isomerization catalyst, such as magnesium oxide. The catalyst is activated by contact with a deoxygenated nitrogen containing not more than 5 ppm molecular oxygen by volume un...
|
|
WO/2002/092726 |
A process for the catalytic oxidation of sulfur and nitrogen contaminants as well as unsaturated compounds present in a hydrocarbon fossil oil medium is described, the process comprising effecting the oxidation in the presence of at leas...
|
|
WO/2002/092227 |
A process is disclosed for regenerating a catalyst (60) used in a process for synthesizing hydrocarbons (40). The synthesis process involves contacting a feed stream (10) comprising hydrogen and carbon monoxide with a catalyst (50) in a ...
|
|
WO/2002/092541 |
Disclosed is a method for converting an oxygenate feedstock to an olefin product. In particular, the method incorporates the use of a silicoaluminophosphate molecular sieve catalyst in the manufacture of ethylene and propylene. The metho...
|
|
WO/2002/090302 |
A selective acetylene hydrogenation process which is able to produce a high quality diolefin having extremely low levels of acetylene over an extended period of time compared with the prior art. The process of the present invention provi...
|
|
WO/2002/085527 |
Cyclone separator provided with an inlet for receiving gas and solid particles, a gas outlet at its upper end and a lower tubular part, wherein the lower tubular part is provided with a closed lower end, through which closed lower end a ...
|
|
WO/2002/085508 |
A process for regenerating a slurry Fischer-Tropsch catalyst (26), which needs regeneration, involves de-waxing and drying the catalyst sufficiently to produce a free-flowing catalyst powder (36) that is fluidizable; fluidizing the catal...
|
|
WO/2002/085828 |
A method for regenerating deactivated sulfonated cation exchange catalysts comprises washing the deactivated catalyst with phenol-water mixtures comprising about 5-20 wt.% of water in phenol at a temperature of about 70-95°C.
|
|
WO/2002/086019 |
Fluid catalytic reactor vessel comprising: at its upper end a single centrally positioned primary cyclone having a gas-solids inlet fluidly connected to the downstream end of a fluid catalytic riser, which riser is positioned externally ...
|
|
WO/2002/083818 |
The present invention is directed to a method of desulfurization of a sulfur laden hydrocarbon liquid that comprises contacting the liquid with a sponge nickel metal alloy, removing the sulfur free liquid, regeneration of the alloy by co...
|
|
WO/2002/079171 |
The present invention relates to enhancement of the cycle life of a zinc chromium based catalyst used in the synthesis of 2-methylpyrazine by increasing the reaction temperature step-wise, starting from a low temperature, while monitorin...
|
|
WO/2002/076885 |
A molybdenum carbide compound is formed by reacting a molybdate with a mixture of hydrogen and carbon monoxide. By heating the molybdate powder from a temperature below 300°C, to maximum temperature 850°C, a controlled reaction can be ...
|
|
WO/2002/076919 |
A method for extremely easily, inexpensively, and efficiently using, recovering, and recycling a soluble metallic catalyst in various liquid-phase reactions. A liquid-phase reaction to be catalyzed by a soluble metallic catalyst is condu...
|
|
WO/2002/076600 |
A process for rejuvenating reversibly deactivated catalyst particles in a three-phase slurry body (22) of gas bubbles and catalyst particles in a slurry liquid, includes passing slurry from the top down to the bottom of the body through ...
|
|
WO/2002/072255 |
A method for regenerating a solid catalyst having been used for producing propylene oxide through an epoxidation reaction of propylene with an organic peroxide in a reactor packed with a solid catalyst, which comprises allowing a liquid ...
|
|
WO/2002/072732 |
The present invention encompasses a process for producing synthethic hydrocarbon products in a reactor. The focus of the present invention is on a novel filtering system for separating synthetic hydrocarbon products from catalyst within ...
|
|
WO/2002/066159 |
A tethered ligand comprising the reaction product of an organofunctional silica and a ligand containing a functional group capable of reaction with said organofunctional silica, wherein the organofunctional silica is prepared from an alk...
|
|
WO/2002/064251 |
Disclosed are a catalyst for selective catalytic reduction of nitrogen oxides and a method for preparing the same. Useful for the removal of nitrogen oxides is a catalyst prepared using spent catalysts having been absorbed with vanadium,...
|
|
WO/2002/058844 |
The instant invention relates to stable free nitroxyl radicals of formula (I) at least one of the substituents R is -O. and the others are hydrogen or OH; X is -NR¿1?R¿2?, wherein R¿1? and R¿2? are independently hydrogen, C¿1?-C¿18...
|
|
WO/2002/057837 |
The invention provides tinted contact lenses, and methods for their manufacture, that alter the natural color of the lens wearer's iris. The lenses use a base layer of translucent color having a clear central zone and a translucent color...
|
|
WO/2002/057393 |
The present invention provides a method of producing a synthesis gas from a regeneration of spent cracking catalyst. The method includes introducing a spent cracking catalyst into a first regeneration zone I a presence of a first oxygen ...
|
|
WO/2002/053683 |
The invention relates to a selective desulphurisation method for thiophene derivatives contained in the hydrocarbons emitted from the distillation of crude oil, refined or not, consisting in oxidising the atoms of thiophene sulphur in su...
|
|
WO/2002/053283 |
Disclosed is a method of rejuvenating molecular sieve and molecular sieve catalyst. The method includes freeze drying a molecular sieve having a methanol conversion ratio of less than 1, or a caalyst containing molecular sieve and a bind...
|
|
WO/2002/051548 |
Process for the regeneration of a solid catalyst or of a solid adsorbent wherein the catalyst or the absorbent is used in the form of a bed in a regeneration zone, in which bed the catalyst is in motion, said process comprising at least ...
|
|
WO/2002/045852 |
The invention relates to a method for the regeneration of a dehydrogenation catalyst, comprising the steps (a)-(f): (a) flushing with inert gas at a pressure of 0.5 to 2.0 bar and a gas loading of 1 000 to 50 000 h?-1¿; (b) passage of a...
|
|
WO/2002/045850 |
Process for the regeneration of exhausted catalysts, containing one or more calcium aluminates, for steam cracking reactions, comprising treating said exhausted catalysts in a stream of water vapour at a temperature ranging from 700 to 9...
|
|
WO/2002/041826 |
The invention relates to phase transfers of nanoparticles and to a catalysis using said nanoparticles. The aim of the invention is to facilitate a transfer of nanoparticles from an organic solution to an inorganic, especially, aqueous so...
|
|
WO/2002/040553 |
The invention relates to a method for deactivating and recovering boron trifluoride when producing polyisobutenes by means of cationic polymerisation of isobutene or hydrocarbon streams containing isobutene in the liquid phase in the pre...
|
|
WO/2002/038271 |
Bromide source such as alkali metal bromide or onium bromide, present as part of a catalyst mixture in an organic oxidative carbonylation mixture further comprising diaryl carbonate and a hydroxyaromatic compound, is often at least parti...
|
|
WO/2002/036527 |
A method for separating a reaction product and an imide catalyst of the general formula (1) or a degenerate thereof from a reaction mixture obtained by a reaction with the imide catalyst, which comprises extracting the reaction mixture w...
|
|
WO/2002/026668 |
The invention relates to a method for the heterogenically catalysed dehydrogenation of one or several C¿2?-C¿30? hydrocarbons that can be dehydrogenated, in one or several reaction zones, in a reaction gas mixture containing said hydro...
|
|
WO/2002/024334 |
The invention relates to a method for regenerating a heterogeneous catalyst, which is used with hydrogen, in order to produce compounds containing NH¿2? groups by hydrogenating compounds that contain at least one unsaturated carbon-nitr...
|
|
WO/2002/022259 |
The invention relates to a method for regenerating a zeolite catalyst, comprising a thermal treatment of the catalyst in the presence of a gas stream at temperatures above 120 °C, whereby the mass-dependent residence time of the gas str...
|
|
WO/2002/020503 |
The invention relates to a method for producing an epoxide in the presence of a zeolite catalyst, whereby (i) an alkene is reacted with a hydroperoxide in the presence of the catalyst in order to obtain the epoxide, and at least one alka...
|
|
WO/2002/020451 |
A method of recovering metal values from an ion exchange resin to which a metal species is bound comprising contacting the reaction product stream with a basic ion exchange resin such that at least a part of the metal becomes bound to th...
|
|
WO/2002/020440 |
A method is disclosed for enhancing the activity of a particulate Dispersed Active Metal (DAM) catalyst during operation of a reactor wherein the hydrogenation of carbon monoxide to produce a mixture of hydrocarbons is being carried out ...
|
|
WO/2002/009873 |
An aqueous low temperature oxidation (ALTO) process wherein a catalyst or catalyst precursor constituted of a solids support, or powder component, and a metal, or metals component, inclusive of cobalt, is oxidized, reduced and rendered c...
|
|
WO/2002/008362 |
A process to regenerate iron-based hydrogen sulfide sorbents using steam. The steam is preferably mixed with hydrogen-containing gas and/or an inert gas, such as nitrogen. In a preferred embodiemtn, the sorbent is first exposed to the st...
|
|
WO/2002/005951 |
A method of making a heat metal treated silicoaluminophosphate molecular sieve comprising: a) providing a silicoaluminophosphate molecular sieve containing a template; b) mixing a metal containing solution with said silicoaluminophosphat...
|
|
WO/2002/005950 |
Disclosed is a molecular sieve catalyst which contains molecular sieve-containing attrition particles and virgin molecular sieve, the attribution particles having been recycled from a catalyst manufacture process or from a reaction syste...
|
|
WO/2002/006205 |
The invention concerns a method for preparing a fatty substance ester, characterised in that it consists in subjecting to an esterification reaction at least a fatty substance with at least an alcohol compound selected from the group con...
|
|
WO/2002/005956 |
A process for the recovery of rhodium from an organic reaction mixture containing rhodium/phosphite ligand complex, phosphite degradation products and high-boiler organic compounds, wherein A) the organic reaction mixture is subjected to...
|
|
WO/2002/004118 |
The present invention pertains to a catalyst composition comprising at least one non-noble Group VIII metal component, at least two Group VIB metal components, and at least 1 wt.% of a combustible binder material selected from combustibl...
|
|
WO/2002/000340 |
Process for regenerating a Pd catalyst after a homogneously catalyzed C-C coupling reaction in which the Pd catalyst precipitates, is separated from the reaction mixture and subsequently treated with I¿2? or Br¿2?. The Pd catalyst ...
|
|
WO/2002/000341 |
Methods of regenerating a coked catalyst by treatment with a hydrogen-containing gas, where the coke is not removed from the catalyst via combustion with an oxygen-containing gas, are disclosed. The hydrogen-containing gas can be hydroge...
|
|
WO/2001/097969 |
A process for the regeneration of a zeolitic catalyst which is at least partially exhausted by use in the synthesis of optionally substituted methylenedianiline (MDA) and derivatives thereof, or of a mixture of optionally substituted MDA...
|
|
WO/2001/096013 |
A method for reactivating a solid alkylation catalyst is provided which can be performed within a reactor that contains the alkylation catalyst or outside the reactor. Effective catalyst reactivation is achieved whether the catalyst is c...
|
|
WO/2001/094280 |
Fresh catalyst particles are added to a slurry hydrocarbon synthesis reactor and their activity increased by contact with hydrogen in-situ in the slurry in a catalyst activity increasing means, while the reactor is producing hydrocarbons...
|
|
WO/2001/094260 |
A method and apparatus for catalytic production of carbon nanotubes. Catalytic particles are exposed to different process conditions at successive stages wherein the catalytic particles do not come in contact with reactive (catalytic) ga...
|
|
WO/2001/094281 |
Fresh catalyst particles are added to a slurry hydrocarbon synthesis reactor and their activity increased by contact with hydrogen in-situ in the slurry in a catalyst activity increasing means, while the reactor is producing hydrocarbons...
|
