CAS: 10361-44-1; Bismuth Nitrate

专利信息

专利号:US-7414008-B2
优先权日:2002-02-28
标 题:Catalyst for synthesis of unsaturated aldehyde, production process for said catalyst, and production process for unsaturated aldehyde using said catalyst
发明人：YUNOKI HIROMI
权利人:NIPPON SHOLONBAI CO LTD
摘要:The present invention provides: a production process for a catalyst for synthesis of an unsaturated aldehyde and/or an unsaturated carboxylic acid, which production process is suitable for producing the catalyst with good reproducibility, wherein the catalyst is excellent in activity, selectivity, and physical strength; this catalyst; and a production process for the unsaturated aldehyde and/or the unsaturated carboxylic acid by using this catalyst. The production process for the catalyst comprises the steps of: carrying out heat treatment of an aqueous solution or slurry of a starting material to thus prepare a catalyst precursor P1, wherein the starting material includes molybdenum, bismuth, and iron as essential components; thereafter adding and mixing a binder into the P1 to thus prepare a catalyst precursor P2; and molding and then calcining the P2, thereby producing the catalyst for synthesis of the unsaturated aldehyde and/or the unsaturated carboxylic acid; with the production process being characterized by involving an ignition loss ratio of the catalyst precursor P1 in the range of 10 to 40 mass % (excluding 40 mass %).

专利号:US-4105651-A
优先权日:1976-03-15
标 题:Purification of enkephalin, an endogenous composition in the human body and synthesis of same
发明人：HUGHES JOHN
权利人:US HEALTH EDUCATION & WELFARE
摘要:The purification of an endogenous composition isolated from mammalian brain tissue and termed enkephalin ('in the head'). Enkephalin is recovered from brain tissue by acetone solution and purified by means of column and thin layer chromatography. The composition which is a mixture of two pentapeptides, namely, (a) H-Tyr-Gly-Gly-Phe-Met-OH and (b) H-Tyr-Gly-Gly-Phe-Leu-OH wherein the ratio of a:b is from 3:1 to 4:1 has been found to be a non-addictive narcotic and an opiate agonist. n The synthesis of the pentapeptide composition from the known structure above is accomplished by conventional solution techniques of protection of the amino groups, such as t-butyloxycarbonyl, benzyloxycarbonyl, and t-amyloxycarbonyl, or the solid phase peptide synthesis of R. Bruce Merrifield using a polymeric support and the same or similar amine protecting groups.

专利号:US-2023183177-A1
优先权日:2020-04-24
标题:Enantioselective chemo-enzymatic synthesis of optically active amino amide compounds
发明人：GRILL BIRGIT; WINKLER MARGIT; SCHWAB HELMUT; STROHMEIER GERNOT; DONSBACH KAI; WALDVOGEL SIEGFRIED R; ARNDT SEBASTIAN; WEIS DOMINIK
权利人:PHARMAZELL GMBH
摘要:The present invention relates to a novel biocatalytic process for the stereoselective preparation of alpha amino amide compounds catalyzed by NHase enzymes. A further aspect of the invention relates to novel NHase enzymes as well as further improved NHase enzyme mutants, nucleic acid molecules encoding these enzymes, recombinant microorganisms suitable for preparing such enzymes and mutants. Another aspect of the invention relates to a chemo-biocatalytic process for the preparation of lactam compounds comprising the new catalytic process for the preparation of alpha amino amide compounds catalyzed by NHase enzymes, as well as the chemical oxidation of the alpha amino amide by applying certain chemical oxidation catalysts suitable for converting the alpha amino amide under retention of its stereochemical configuration to the respective lactam. The novel chemo-biocatalytic process is particularly suited for the synthesis of valuable pharmaceutical compounds, like in particular (S)-Levetiracetam.

专利号:US-2024197774-A1
优先权日:2021-04-16
标 题:Synthesis of Antimicrobial PVP-coated Bismuth Nanoparticles
发明人：LOPEZ-RIBOT JOSE; VAZQUEZ-MUNOZ ROBERTO
权利人:UNIV TEXAS
摘要:Described herein is a facile, fast, and economical method for the synthesis of BAL-mediated PVP-BiNPs, using basic laboratory instruments and reagents readily available in most laboratories.

专利号:US-5856259-A
优先权日:1994-12-21
标 题:Preparation process of supported catalyst for the synthesis of methacrolein and methacrylic acid
发明人：WATANABE SEIGO; YOSHIOKA HITOSHI; IZUMI JINKO
权利人:MITSUBISHI RAYON CO
摘要:A process for producing a supported catalyst for the synthesis of methacrolein and methacrylic acid in which a catalytic active substance comprising a composite oxide containing molybdenum and bismuth as essential components is supported on the inside surface and/or the outside surface of an inert carrier, which comprises the steps of drying a mixed solution or an aqueous slurry containing the compounds of the elements constituting the catalytic active substance, subjecting the dried product to a primary calcination at a temperature in a range of 200°-400° C. to form a catalytic active substance precursor, comminuting the obtained catalytic active substance precursor to such an extent that the medium particle size in the volume-based particle size distribution becomes 10 μm or less, supporting the comminution product on an inert carrier, and subjecting it to a secondary calcination at a temperature which is 100° C. or more higher than the primary calcination temperature.

专利号:US-7387982-B2
优先权日:2001-12-28
标题:Method of producing catalyst for synthesis of unsaturated aldehyde and unsaturated carboxylic acid and catalyst prepared by this method
发明人：KONDO MASAHIDE; KAWATO SEIICHI; KURODA TORU
权利人:MITSUBISHI RAYON CO
摘要:The method of producing a catalyst for synthesis of an unsaturated aldehyde and unsaturated carboxylic acid of the present invention is characterized in that the method comprises a step of adding liquid to particles containing molybdenum, bismuth and iron and kneading the mixture, and extrusion-molding this kneaded substance, a step of preserving the molded article obtained by extrusion molding, and at least one step of drying and calcining the preserved molded article, and the contact time of particles containing molybdenum, bismuth and iron with liquid is 1 to 48 hours, and the preserving time of the molded article is 50% or more of the contact time of particles containing molybdenum, bismuth and iron with liquid. According to the production method of the present invention, catalytic activity can be easily controlled, and a catalyst having high activity and high selectivity is obtained.