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-5550095-A 优先权日:1992-05-08 标 题 :Process for producing catalyst used for synthesis of methacrylic acid 发明人:NAITO HIROYUKI; OTANI MASATO; OH-KITA MOTOMU; KURODA TORU 权利人:MITSUBISHI RAYON CO 摘要:PCT No. PCT/JP93/00597 Sec. 371 Date Nov. 4, 1994 Sec. 102(e) Date Nov. 4, 1994 PCT Filed May 7, 1993 PCT Pub. No. WO93/23161 PCT Pub. Date Nov. 25, 1993There is provided a process for efficient production of a solid catalyst usable for synthesis of methacrylic acid from methacrolein which comprises adding a lower alcohol or acetone to a dried product obtained from a mixed solution or aqueous slurry containing at least Mo, P and V as catalyst components and shaping the mixture by extrusion molding.
专利号:WO-2024123268-A1 优先权日:2022-12-09 标 题 :Production of silver nanoparticles by green synthesis using hazelnut husk extract 发明人:AKDOGAN OZAN; GUNDUZ AKDOGAN NILAY; SIVRI DAMLA; KUREL ALI 权利人:BAHCESEHIR UNIV; PIRI REIS UNIV 摘要:The invention relates to synthesis of nanoparticles from hazelnut husk extract by green synthesis with high efficiency. Use of chemical is limited in the present invention and therefore the synthesis of nanoparticles is provided by green chemistry in the present invention. Said hazelnut may be Corylus and said hazelnut husk may be cob or shell of the hazelnut. In an embodiment of the invention said Corylus may be Colyrus colurna, Corylus americana Corylus avellana, Corylus avellana var. Avellana, Corylus avellana var. Pontica, Corylus chinensis, Corylus colchica, Corylus × colurnoides, Corylus cornuta, Corylus cornuta ssp. californica, Corylus cornuta ssp. cornuta, Corylus fargesii, Corylus ferox, Corylus ferox var. ferox, Corylus ferox var. thibetica, Corylus heterophylla, Corylus heterophylla var. heterophylla, Corylus heterophylla var. sutchuensis, Corylus jacquemontii, Corylus maxima, Corylus potaninii, Corylus sieboldiana, Corylus sieboldiana var. mandshurica, Corylus sieboldiana var. sieboldiana, Corylus wangii, Corylus wulingensis or Corylus yunnanensis.
专利号:US-7229945-B2 优先权日:2003-12-19 标 题 :Process of making mixed metal oxide catalysts for the production of unsaturated aldehydes from olefins 发明人:KAUFFMAN JAMES W 权利人:SAUDI BASIC IND CORP 摘要:The present invention is for a process for making a catalyst for production of unsaturated aldehydes, such as methacrolein, by gas phase catalytic oxidation of olefins, such as isobutylene, said catalyst containing oxides of molybdenum, bismuth, iron, cesium, tungsten, cobalt, nickel, antimony, magnesium and zinc. The process is a two-part synthesis of the catalyst with the water insoluble components in one part and the water soluble components in the other part. The water insoluble components are co-precipitated to form an intermediate catalyst precursor of a precipitated support incorporating oxides of the metal components. The intermediate catalyst precursor is filtered and washed to remove nitrates. The intermediate catalyst precursor is slurried with the remaining water soluble components. A final catalyst precursor is formed by removing the water and incorporating the water soluble components. This two-part process reduces the amount of nitrates in the final catalyst precursor.
专利号:US-9861965-B2 优先权日:2011-09-16 标 题 :Process for preparing modified V—Ti—P catalysts for synthesis of 2,3-unsaturated carboxylic acids 发明人:NORMAN DAVID WILLIAM; KING GREG ALAN 权利人:EASTMAN CHEM CO 摘要:The invention relates to a catalyst composition comprising a mixed oxide of vanadium, titanium, and phosphorus modified with alkali metal. The titanium component is derived from a water-soluble, redox-active organo-titanium compound. The catalyst composition is highly effective at facilitating the vapor-phase condensation of formaldehyde with acetic acid to generate acrylic acid, particularly using an industrially relevant aqueous liquid feed.
专利号:US-2023001402-A1 优先权日:2019-11-25 标题:Iridium-based amorphous electrocatalyst and synthesis of same 发明人:LI GUANGFU; CHUANG PO-YA ABEL 权利人:UNIV CALIFORNIA 摘要:A method of fabricating a catalyst material comprises forming or receiving a precursor solution of an iridium precursor compound, adding a 3d orbital transition metal to the precursor solution, adding a surfactant compound to the precursor solution to provide a precursor and surfactant mixture, reacting the iridium precursor compound with a nitrate salt of an alkaline metal cation to provide a reaction product comprising an iridium nitrate, and calcining the iridium nitrate at a specified calcination temperature to convert the iridium nitrate to form catalyst particles comprising an iridium oxide.
[参考文献]: Martin Mangstl, Et Al. Low Temperature Synthesis Of Ionic Phosphates In Dimethyl Sulfoxide. Dalton Trans. 2014 Jul 14;43(26):10033-9.
合成参考文献
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