CAS: 11120-25-5; Ammonium Paratungstate

专利信息

专利号:WO-03037792-A1
优先权日:2001-10-31
标 题 :Large-scale synthesis of single-walled carbon nanotubes by group viiib catalysts promoted by group vib metals
发明人：TANG SONGBAI; LIN JIANYI; TAN KUANG LEE; WU XIAOBIN
权利人:UNIV SINGAPORE; TANG SONGBAI; LIN JIANYI; TAN KUANG LEE; WU XIAOBIN
摘要:Synthesis of single-walled carbon nanotubes, which comprises contacting a carbon containing material with a catalyst comprising at least two transition metals and a support, wherein at least one transition metal is a group VIIIB element and at least one transition metal is a group VIB element.

专利号:US-9024030-B2
优先权日:2012-01-13
标题 :Process for the synthesis of etoricoxib
发明人：MAO ZHENMIN; LAN TIAN; LIU LANFANG; YAN LONG; BECKER STEFAN
权利人:TIEFENBACHER ALFRED E GMBH & CO KG; SHANGHAI GOLDEN PHARMATECH CO LTD; SHANGHAI GOLDEN PHARMATECH CO LTD
摘要:The present invention relates to a process for the synthesis of the anti-inflammatory agent 5-chloro-3-(4-methanesulfonylphenyl)-6′-methyl-[2,3′]bipyridine, referred to as compound of formula (1) or etoricoxib, which is a pharmaceutically active ingredient inhibiting cyclooxygenase-2. In particular, the application concerns a novel process of making the compound of formula (1) by oxidizing a compound of formula (4).

专利号:WO-2024091204-A1
优先权日:2022-10-27
标题 :An electrochemical method for the synthesis of high purity tungsten blue in solid form
发明人：SAHIN YUCEL; ARVAS MELIH BESIR; YAZAR AYDOGAN SIBEL
权利人:UNIV YILDIZ TEKNIK; ISTANBUL UNIV CERRAHPASA REKTORLUGU
摘要:The invention relates to a short-time, low-cost and environmentally friendly electrochemical method for the single-step synthesis of high purity tungsten blue using an electrochemical system. Said electrochemical system comprises a potentiostat (1), electrolyte (5), a working electrode (2) connected to the potentiostat (1) and immersed in the electrolyte (5), a counter electrode (3) connected to the potentiostat (1) and immersed in the electrolyte (5), and a reference electrode (4) connected to the potentiostat (1) and immersed in the electrolyte (5).

专利号:US-5756419-A
优先权日:1995-09-25
标题 :Process for the conversion of synthesis gas in the presence of a catalyst comprising cobalt and additional elements
发明人：CHAUMETTE PATRICK; DIDILLON BLAISE
权利人:INST FRANCAIS DU PETROLE
摘要:The invention concerns the preparation of a catalyst comprising a support containing at least one oxide of the element Si, Al, Ti, Zr, Sn, Zn, Mg or Ln (where Ln is a rare earth), cobalt, at least one element A selected from the group formed by ruthenium, platinum, palladium and uranium, and at least one element B selected from the group formed by molybdenum and tungsten, characterized in that it comprises at least the following successive steps: n (1) formation of a precursor comprising at least cobalt and at least a portion of the support; n (2) at least partial reduction of the precursor in the presence of at least one reducing compound; and n (3) deposition of any part of compound present in the catalyst and not present in the precursor on the reduced precursor. n The invention also concerns the use of the catalyst in a process for the synthesis of C 5 + hydrocarbons from synthesis gas.

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-2024327997-A1
优先权日:2023-03-28
标题 :Electrocatalytic Conversion of Nitrates and Nitrites to Ammonia
发明人：ATANASSOV PLAMEN; MURPHY EAMONN; LIU YUANCHAO; SPOERKE ERIK DAVID
权利人:NAT TECH & ENG SOLUTIONS SANDIA LLC; UNIV CALIFORNIA
摘要:Electrocatalytic reduction of waste nitrates (NO3−) enables the synthesis of ammonia (NH3) in a carbon neutral and decentralized manner. The present invention uses atomically dispersed transition metal-nitrogen-carbon (M-N—C) catalysts with varying metal centers to uniquely favor mono-nitrogen products (e.g., NH3) via the electrochemical nitrate reduction reaction (NO3RR).