Novel sulphonates and process for the preparation thereof The present invention relates to a process for producing polyoxyalkylene ethane sulphonates and the use thereof as surfactants. The process comprises reacting the parent ethane halide wit...
Inversion of poisonous halogenide
The invention relates to a process for inversing organic halogenide by thermal decomposition in gaseous phase in a reducing gas layer, and to produce hydrogen chloride without hydrogenca...
Process for oxydehydrogenation of ehtane to ethylene A process for low temperature oxydehydrogenation of ethane to ethylene uses an improved supported catalyst produced by impregnating the support with the soluble portion of a precursor cat...
8
86101380
Pyrethroid compound containing many kinds of active components An insecticidal composition containing more than one active ingredients which comprises as active ingredient in an amount of 0.001-99% by weight a synthetic pyrethroide - namely out of th...
9
86100282
Process for production of N,N-disubstd. carboxylic acid amides The invention provides a novel process for producing N,N-disubstituted carboxylic acid amides represented by the following formula (I), which comprises contacting a Schiff base represente...
10
85108493
Oxidation reaction process This invention provides an industrially advantageous process of oxidation reaction of an oxidizable organic compound, which comprises a reaction using an alkali hypohalite as an oxidizing...
bi-ester of phosphite Transition metal-bis-phosphite catalyzed carbonylation processes, especially hydroformylation, as well as transition metal-bis-phosphite compositions, bis-phosphite ligands and transition...
13
86104674
Oxidation method A method of performing an oxidation reaction in which an alkali hypohalite is used as an oxidizing agent which comprises: carrying out the oxidation reaction in an aqueous medium with con...
14
87101884
Process and apparatus for saponification reaction and the like Reaction equipment for chemical processes, e.g., saponification processes having reaction times of about 2-8 minutes. The reactants are measured, and fed sequentially into a reactor. The ...
Manufacturing method of DL-lysene
This invention provides a method of making DL-lysine from L-lysine through dl-purification. The procedures of this method are as follow: dissolving L-lysine while a kind of inorganic aci...
Process for preparing deuterated organic compounds The process for the preparation of deuterated acrylic acid or methacrylic acid by direct exchange of hydrogen by deuterium from D2O in the presence of a catalyst, which is hitherto known,...
19
87105990
Preparation method of optically-active cotton phenol
The present invention relates to the preperation method of cotton phenol with opticity and of the structural formula Ia or Ib. The said method includes: the hydrolysis of the condensatio...
20
87104030
Optically active adsorbents Absorbents based on optically active poly(meth)acrylamides, e.g. bonded to silica gel, can be used for separating racemic mixtures into their optical antipodes.
Load type Cu-Zn base methyl alcohol-disolving catalyzer
A load type non-noble metal catalyzer system is prepared by dipping process in which the carrier is aluminium oxide. The first component is capper and zinc, the second component is nicke...
23
88107256
Chemical conversion process
A process for catalytically converting a feedstock into a product comprising contacting the feedstock with crystalline microporous three dimensional solid catalyst having the ability to ...
24
88107254
Chemical conversion process
A process for catalytically converting a feedstock into a product which comprises: (a) contacting said feedstock with a fluidizemass of solid particles comprising crystalline microporous...
25
88107258
Chemical conversion process
A process for converting a feedstock containing 1 to about 6 carbon atoms per molecule which includes (a) contacting the feedstock with a solid composition comprising a crystalline micro...
Isoparaffin-olefin alkylation process
This invention relates to an alkylating reaction between isoparaffin and olefine which produces an alkylated compound. Said reaction is conducted in the presence of zeolite as catalyst.
Process for nitrating aromatic compound
A process for nitrating aromatic compound features use of nitric acid-organic solvent system or nitric acid as nitrating reagent, addition of certain catalyst and reaction at 20-90 deg.C...
Process for separating enantiomers from a racemic mixture Proposed is a process for separating enantiomers from a racemic mixture by countercurrent extraction using at least two liquids of mutually differing chiralities, said liquids being wholl...
34
93118271
Process for producing hydrocarbon partial oxidation products Hydrocarbon derivatives are produced by contacting a hydrocarbon with oxygen obtained from an air separation unit in the presence of a partial oxidation reaction catalyst. After separatio...
N-phosphoryl compound and its synthesis
N-phosphoryl compound is synthesized by the direct phosphorylation of amino-containing primary and secondary amines, or amino acids, or peptides and their lipopeptide in water-containing...
37
93121280
A method for reducing an alpha, beta-unsaturated ketone A method for reducing an alpha , beta -unsaturated ketone of the present invention includes the step of treating the alpha , beta -unsaturated ketone with a silyl compound in the presence...
38
93112622
Catalytic fluorating method
This process uses aryl-trihalo-methyl compound and its derivatives to conduct fluoridation with hydrofluoric acid in the presence of catalyst of substituted linear perfluoro alkyl sulfon...
Continuous process for purifying perfluorochemical compositions A process for the purification of a perfluorochemical composition comprises continuously mixing the perfluorochemical composition, comprising a liquid mixture of inert perfluorochemicals ...
High temp. resistant unsaturated compound and its prepn. method
The general formula of the invented compound is X- R-Z-R1-Z]n-Y; where n=1-1000. The raw material is composed of components A and B, catalyst and solvent. The genral formula of component...
Ammoxidation reaction in reaction zone Disclosed is a method of improving oxidation and ammoxidation catalysts, a process comprising the heat treatment of certain V and Sb-containing catalysts at a lower temperature than the p...
Spliting method for DL-pantoyl internal ester
The present invention relates to one splitting method for DL-pantoyl internal ester. Splitting agent of the present invention is organic base R-NH2, where R is C15H15. The splitting proc...
Extraction method of orostachys fimbriatus effective component
A process for extracting the active component from Orostachys fimbriatus includes pretreating, decocting in water, filter, concentrating, depositing in alcohol, desalting, and distilling...
Method for catalytic decomposition of organic hydroperoxides The invention concerns a method for decomposition of organic hydroperoxides, in the presence of a catalyst. It provides a method for decomposition of organic hydroperoxides in the presenc...
54
02149916
Regenerating method for lump hydrogenating catalytic reactor The invention is a process to regenerate monolith catalytic reactors employed in the liquid phase hydrogenation reactions, particularly those kinds of reactions involving nitroaromatic co...
55
02823386
Bidentate ligands of diolefin telomerization
Process for the telomerization of a conjugated diene, wherein the conjugated diene is reacted with a compound containing an active hydrogen atom and having a formula R'-H in the presence...
Preparing method for motherwort general alkaloid
The present invention relates to the method of preparing total motherwort alkaloid with motherwort material. Via ion exchange resin process, motherwort extractive is purified to obtain t...
59
02144840
Preparation method of total saponin extract in notoginseng leaf
The preparation method of notoginseng leaf total saponin extract includes the following steps: decocting notoginseng leaf by adding water, combining filtrates obtained by decocting notog...
Sesame flower extract, preparation method and use thereof
The present invention relates to a sesame flower extract, and its preparation process includes the following steps: extracting sesame flower in extracting liquor, removing solid impurity...
Prepn process of tripterygium extractive
The present invention is the preparation process of tripterygium extractive. The preparation process includes low temperature dynamic countercurrent extraction of tripterygium material w...
67
02155132
Method of extracting effective components in kudzu vine root
The present invention is the method of extracting effective components in kudzu vine root. The present invention features that during the separation of effective components in kudzu vine...
68
02824888
Method for the preparation of escitalopram
The invention relates to a method for the preparation of escitalopram by cyanation of optically active intermediates of the formulas III and II below, and the preparation of such interme...
69
02825975
Separation of diastereoisomers
Process for modifying the relative ratios of the components of a liquid starting mixture of specific diastereoisomers, containing at least two asymmetric carbon atoms comprising contacti...
70
02827336
Method for forming a carbon-carbon or carbon-heteroatom linkage The present invention concerns a process for creating a carbon-carbon or carbon-heteroatom bond by reacting an unsaturated compound carrying a leaving group with a nucleophilic compound. ...
71
02155059
Method for preparing alkoxy compound by oxyalkylation
The method for preparing alkoxyl compound by utilizing alkoxylation reaction in the presence of catalyst is characterized by that it uses the compound containing reactive hydrogen and ep...
72
02155060
Method for preparing alkoxy compound by oxyalkylation
The method for preparing alkoxyl compound by utilizing alkoxylation reaction in the presence of catalyst is characterized by that it uses the compound containing reactive hydrogen and ep...
Inhibitor
A polymerization inhibitor for the transportation and preparing of styrene, butadiene, isopentadiene, vinyl acetate and acrylonitrile is disclosed, which is just the polymer or monomer o...
75
02827630
Method for vapor phase catalytic oxidation A method for vapor phase catalytic oxidation involving using a fixed bed multi-tube heat-exchanger type reactor having a plurality of reaction tubes, feeding a raw material gas for reacti...
Process for preparing alkylamine A continuous process for preparing alkylamines comprises reacting continuous streams of ammonia and alkyl halide in a molar ratio of at least 10:1 in a pressure reactor. The ultimate reac...
79
03114825
Preparation method of ginkgo leaf extract
The preparation method of ginkgo leaf extract includes the following steps: using aqueous ethyl alcohol or methyl alcohol or acetone to extract ginkgo leaf for several times, taking out ...
80
03114826
Preparation method of low-acid ginkgo leaf extract The preparation method of low-acid ginkgo leaf extract includes the following steps: using ginkgo leaf as raw material, using aqueous ethyl alcohol or methyl alcohol or acetone to make ex...
Process for producing dicarboxylic acid A process for dicarboxylic acid production which comprises oxidatively cleaving a cycloalkane with oxygen in a liquid phase with a continuous reactor in the presence of a catalyst to prod...
Novel process for producing 1,2-diol The invention provides a process for producing a 1,2-diol through the reaction of an olefin with hydrogen peroxide. The process is highly efficient and highly selective and catalyst recov...
Process for producing azetidinone compounds
It is intended to provide a process for selectively obtaining an intermediate in synthesizing a desired carbapenem-type antibacterial agent having a methyl group at the 1'-beta-position ...
Process for performing oxidation reaction A process for oxidizing a liquid component with an oxygen-containing gas, wherein the oxidation is carried out under a condition of an agitation power per unit volume of 10.0 to 500 kg.m/...
Novel propionic acid derivative A compound represented by the following formula (1): (1) (wherein R1 represents C1-12 alkyl, phenyl, 1-naphthyl, etc.; R2 represents C2-12 alkyl; (R3)b represent zero to four substituents...
95
03807555
Bisphosphines as bidentate ligands The present invention relates to ligands of the general formula (I). In addition, a process for the production thereof and the use thereof are demonstrated.
High content ginkgo extract and process for producing same
A high-content ginkgo extract for invigorating the pulse-beat and promoting blood circulation contains flavone glycoside (31-40%) and lactone (11-15%) and is prepared from ginkgo leaf th...
100
03805678
Substituted amides active at the cannabinoid-1 receptor Novel compounds of the structural formula (I) are antagonists and/or inverse agonists of the Cannabinoid-1 (CB1) receptor and are useful in the treatment, prevention and suppression of di...
