| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 568451000 |
Hydroformylation by reacting ethylenically unsaturated compound, carbon monoxide, and gaseous hydrogen
| 57 |
| 568485000 |
Oxy or peroxy containing reactant
| 38 |
| 568458000 |
Aldehyde reactant
| 27 |
| 568470000 |
Oxidation of organic compound utilizing gaseous oxygen
| 16 |
| 568484000 |
Reactant contains -COO- group
| 12 |
| 568492000 |
Purification or recovery
| 6 |
| 568491000 |
Water utilized as reactant | 2 |
| 20140378711 | METHOD FOR SYNTHESIZING 2,7-DIMETHYL-2,4,6-OCTATRIENE-1,8-DIALDEHYDE - Provided in the present invention is a method for synthesizing 2,7-dimethyl-2,4,6-octatriene-1,8-dialdehyde. The synthesis method comprises the following steps: (1) adding acetaldehyde diethyl acetal and ethyl-(1-propenyl)-ether under the effect of a catalyst to produce 1,1,3-triethoxy-2-methyl-butane; (2) pyrolysis synthesizing 1,1,3-triethoxy-2-methyl-butane under the catalytic effects of isoquinoline and p-Toluenesulfonic acid to produce 1-methoxy-2-methyl-1,3-butadiene; (3) dissolving 1-methoxy-2-methyl-1,3-butadiene in anhydrous ethanol solvent for synthesis with a phase transfer catalyst, cetyl-trimethyl ammonium bromide, and a chlorinating agent, trichloroisocyanuric acid, to generate 4,4-diethoxy-3-methyl-1-chloro-butene; (4) combining 4,4-diethoxy-3-methyl-1-chloro-butene with a triphenylphosphine salt to produce a phosphonium salt; and (5) condensing the phosphonium salt under the effects of hydrogen peroxide in conjunction with sodium carbonate solution to generate 1,1,8,8-tetramethyl-2,7-dimethyl-2,4,6-octatriene; then hydrolyzing under acidic conditions to synthesize 2,7-dimethyl-2,4,6-octatriene-1,8-dialdehyde. The present invention has a simple process route, is easy to operate, and has mild conditions, great yield, and great industrial value. | 12-25-2014 |
| 20160046871 | Systems and Processes for Catalytic Pyrolysis of Biomass and Hydrocarbonaceous Materials for Production of Aromatics with Optional Olefin Recycle, and Catalysts Having Selected Particle Size for Catalytic Pyrolysis - This invention relates to compositions and methods for fluid hydrocarbon product, and more specifically, to compositions and methods for fluid hydrocarbon product via catalytic pyrolysis. Some embodiments relate to methods for the production of specific aromatic products (e.g., benzene, toluene, naphthalene, xylene, etc.) via catalytic pyrolysis. Some such methods may involve the use of a composition comprising a mixture of a solid hydrocarbonaceous material and a heterogeneous pyrolytic catalyst component. In some embodiments, an olefin compound may be co-fed to the reactor and/or separated from a product stream and recycled to the reactor to improve yield and/or selectivity of certain products. The methods described herein may also involve the use of specialized catalysts. For example, in some cases, zeolite catalysts may be used. In some instances, the catalysts are characterized by particle sizes in certain identified ranges that can lead to improve yield and/or selectivity of certain products. | 02-18-2016 |
| 568450000 |
Isomerization | 2 |
| 20100048959 | METHOD FOR THE HYDROFORMYLATION OF OLEFINS - The present invention relates to a process for preparing hydroformylation products of olefins having at least four carbon atoms, in which a high proportion of both the linear C | 02-25-2010 |
| 20110071321 | METHOD FOR SEPERATING 1-BUTENE FROM C4-CONTAINING HYDROCARBON STREAMS BY HYDROFORMYLATION - The invention relates to a method for separating 1-butene from C | 03-24-2011 |
| 568483000 |
Hetero ring containing reactant | 2 |
| 20090076311 | PROCESS FOR PRODUCING ALDEHYDE WITH 2-POSITION BRANCHED LONG-CHAIN ALKYL - To provide a process capable of producing an aldehyde with a 2-position branched long-chain alkyl with high yield and high selectivity. The process for producing an aldehyde with a 2-position branched long-chain alkyl represented by the following general formula (2) contains: using a 2-position branched epoxide represented by the following general formula (1) as a raw material; and subjecting the epoxide to acid rearrangement reaction with a polyacid of a metallic oxoacid as a catalyst. In the formulae, n represents an integer of from 5 to 17. | 03-19-2009 |
| 20090318735 | PREPARATION OF GLUTARALDEHYDE - Provided is a process for the preparation of glutaraldehyde. The process comprises reacting an alkoxydihydropyran with water in the presence of an acidic catalyst. The alcohol by-product distilled from the reaction mixture is subjected to a heterogeneous catalyst that is located external to the distillation column used for distilling the alcohol, thereby increasing glutaraldehyde yield and decreasing the level of alkoxydihydropyran contamination in the alcohol. | 12-24-2009 |
| 568490000 |
Halogen containing reactant | 1 |
| 20140296578 | ALKANE OXIDATION - Embodiments include an alkane oxidation catalyst having a support modified with a carboxylate group. The carboxylate group is functionalized with a manganese complex selected from the group consisting of [(C | 10-02-2014 |
| 568469000 |
Ozone reactant | 1 |
| 20080319232 | Synthesis of Aldehydes by Ozonolysis of Secondary Allyl - The invention relates to a process for the preparation of an aldehyde from a secondary alcohol having a double bond in the alpha position, comprising the steps.
| 12-25-2008 |
| 568467000 |
Acetylene reactant | 1 |
| 20150344392 | METHOD OF PREPARING Z-ALKENE-CONTAINING INSECT PHEROMONES - Insect pheromones and pheromone precursors, containing one or more Z-alkenyl groups, are prepared by treating an alkyne with a copper complex, reducing agent, and proton donor in an organic solvent. The pheromones and pheromone precursors are prepared with high stereoselectivity and substantially no over reduction. | 12-03-2015 |
| 568469900 |
Oxidation of hydrocarbon mixtures | 1 |
| 20100286450 | MIXED OXIDE CATALYSTS FOR CATALYTIC GAS PHASE OXIDATION - The invention relates to mixed oxide catalysts for the catalytic gas phase oxidation of alkanes, or mixtures of alkanes and olefins, for the production of aldehydes and carboxylic acids with air or oxygen in the presence of inert gases at elevated temperatures and pressure, and a method for the production of catalysts. | 11-11-2010 |
| Entries |
| Document | Title | Date |
|---|
| 20080262271 | C10 Dialdehyde, Synthetic Method Thereof, and Synthetic Method of Beta-Carotene Using the Same - The novel intermediate compound which can be efficiently utilized in the synthesis of carotenoid compounds based on the sulfone chemistry, the preparation method of the same, and the practical synthetic process for preparing β-carotene by the use of the above novel compound are disclosed. The synthesis of β-carotene is characterized by the double elimination reactions of the C | 10-23-2008 |
| 20090192335 | TEMPERATURE-CONTROL IN THE PERFORMANCE OF OXIDATION REACTIONS OF HYDROCARBONS - The present invention relates to a process for performing catalyzed oxidation reactions of hydrocarbons over a catalyst disposed in a reactor, which comprises cooling the product gas stream of the catalyzed oxidation reaction immediately after it leaves the reaction zone of the reactor by feeding in a temperature-controlled gas stream which is fed in through at least one feed device into the region between lower reactor plate and outlet of the product gas stream. | 07-30-2009 |
| 20090318734 | IONIC ADDITIVE FOR CATALYSIS IN BIPHASIC REACTION SYSTEMS - An additive for improving the rate of catalysis in biphasic reaction systems is disclosed. The additive is an ionic molecule comprising an organic cation such as a heterocyclic compound or a quaternary ammonium or phosphonium cation, and an anion which may be organic or inorganic. A process for improved catalysis in an aqueous biphasic system wherein the catalyst is substantially dissolved in the aqueous phase and the substrate is substantially contained in the non-aqueous phase is also described. A suitable additive is 1-octyl-3-methylimidazolium halide. Examples of suitable catalytic reactions include the hydrogenation, hydrosilation, hydroboration, hydrovinylation, hydroformylation, oxidation and hydroxycarbonylation of alkenes, and Heck, Suzuki, Stille, and Sonigashira coupling. | 12-24-2009 |
| 20110082319 | Method for producing acrolein by means of dehydration of glycerol - The invention relates to a method for the synthesis of acrolein by means of dehydration of the glycerol in the presence of a solid acid catalyst having a Hammett acidity of less than +2, such as sulfated zirconium oxides, phosphated zirconium oxides, tungstated zirconium oxides, silicated zirconium oxides, sulfated tin or titanium oxides, phosphated aluminas or silicas, doped iron phosphates, and phosphotungstic or silicotungstic acid salts placed in a reactive medium comprising a gaseous phase containing between 1 and 3000 ppm of an acid compound according to the Pearson classification, selected, for example, from SO3, SO2, and NO2, the dehydration reaction being carried out either in a gaseous phase or in a liquid phase. | 04-07-2011 |
| 20110201843 | SILVER CATALYST FOR FORMALDEHYDE PREPARATION - The present invention relates to a process for producing coated silver catalysts. The invention further addresses the silver catalysts themselves and the advantageous use thereof in formaldehyde synthesis. | 08-18-2011 |
| 20120095267 | PROCESS FOR LONG-TERM OPERATION OF A HETEROGENEOUSLY CATALYZED PARTIAL GAS PHASE OXIDATION OF PROPENE TO ACROLEIN - A process for long-term operation of a heterogeneously catalyzed partial gas phase oxidation of propene to acrolein, in which the propene present in the reaction gas input mixture is partially oxidized as this gas mixture passes through the fixed catalyst bed which is accommodated in two spatially successive temperature zones A, B, and, in long-term operation, as a measure to counteract the reduction in the quality of the fixed catalyst bed, the temperature of at least one of the two temperature zones is increased such that the difference T | 04-19-2012 |
| 20120095268 | MICROCHANNEL PROCESSOR - This invention relates to an apparatus, comprising: a plurality of plates in a stack defining at least one process layer and at least one heat exchange layer, each plate having a peripheral edge, the peripheral edge of each plate being welded to the peripheral edge of the next adjacent plate to provide a perimeter seal for the stack, the ratio of the average surface area of each of the adjacent plates to the average penetration of the weld between the adjacent plates being at least about 100 cm | 04-19-2012 |
| 20120277473 | OXIDATIVE DEHYDROGENATION OF METHANOL TO FORMALDEHYDE OVER SILVER-CONTAINING KNITS - In a process for producing C | 11-01-2012 |
| 20130023699 | MO-, BI- AND FE-COMPRISING MULTIMETAL OXIDE COMPOSITIONS - Mo-, Bi- and Fe-comprising multimetal oxide compositions of the general stoichiometry I, | 01-24-2013 |
| 20130178657 | ENERGY EFFICIENT SYNTHESIS OF ALIPHATIC ALDEHYDES FROM ALKENES AND CARBON DIOXIDE - The problem addressed by the present invention is that of specifying a process for producing aldehydes which, compared with conventional hydroformylation, cuts CO | 07-11-2013 |
| 20130310610 | HETEROGENEOUS CATALYST AND ITS USE - A heterogeneous catalyst that is a combination of rhodium, zinc, iron, a fourth metal and at least one metal selected from alkali metals and alkaline earth metals on a catalyst support (e.g. at least one of silica, alumina, titania, magnesia, zinc aluminate (ZnAl | 11-21-2013 |
