CAS: 7440-03-1; Niobium

专利信息

专利号:US-2017246619-A1
优先权日:2014-09-26
标 题 :Solid state synthesis of oxidative dehydrogenation catalysts
发明人：BASSET JEAN-MARIE; ZHU HAIBO; ROSENFELD DEVON C; LAVEILLE PACO
权利人:DOW GLOBAL TECHNOLOGIES LLC
摘要:Synthesize a nickel oxide-based oxidative dehydrogenation catalyst via a solvent-free process that comprises sequential steps a. mixing without added solvent a combination of a solid nickel precursor, a solid oxalate or oxalic acid and, optionally, a doping amount of a metal precursor for a period of time sufficient to convert the combination to a visually homogenous mixture; and b. calcining the visually homogeneous mixture at a temperature within a range of from greater than 250° C. to less than 800° C. for a time within a range of from 30 minutes to 360 minutes in an oxygen-containing atmosphere, preferably air, to form a calcined oxidative dehydrogenation catalyst. As a modification of the process, add an intermediate step between steps a. and b. to dry the homo geneous mixture at a temperature within a range of from 50° C. to 90° C. for a period of time within a range of from 10 minutes to 600 minutes to form a dried mixture. The resulting catalyst may be used in oxidative dehydrogenation of ethane.

专利号:US-6616972-B1
优先权日:1999-02-24
标题 :Synthesis of metal oxide and oxynitride
发明人：SENZAKI YOSHIHIDE; HOCHBERG ARTHUR KENNETH; CUTHILL KIRK SCOTT
权利人:AIR PROD & CHEM
摘要:A method for producing a material selected from the group consisting of metal oxide, metal oxynitride and mixtures thereof on a substrate, comprising; reacting a first reactant selected from the group consisting of (R 1 R 2 N) x M(â•?NR 3 ) y , (R 4 R 5 N) x M[η 2 —R 6 Nâ•?C (R 7 )(R 8 )] y and mixtures thereof with an oxidant and up to 95 volume percent of a source of nitrogen selected from the group consisting of ammonia, N 2 O, NO, NO 2 , alkyl amines, N 2 H 2 , alkyl hydrazine, N 2 and mixtures thereof, to produce said material on said substrate, where R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 and R 8 are individually C 1-6 alkyl, aryl or hydrogen, Mâ•?Ta, Nb, W or Mo or mixtures thereof, and when Mâ•?Ta or Nb, x=3 and y=1 and when Mâ•?W or Mo, y=x=2.

专利号:US-2001051110-A1
优先权日:1998-06-09
标题 :Apparatus for in-situ preparation and analysis of mixed metal oxide catalysts
发明人：BORADE RAMESH; POOJARY DAMODARA; ZHOU XIAO PING
摘要:The present invention discloses an apparatus and method for rapid synthesis and analysis of members of a combinatorial library. The apparatus includes a plurality of vessels for containing individual library members and a fluid handling system that apportions a test fluid about equally between each of the vessels. This allows for simultaneous screening of library members by detecting changes in test fluid following contact with individual library members. Fluid flow through each of the vessels is controlled using passive flow restrictors or active flow controllers to ensure that each library member contacts approximately the same amount of test fluid per unit time. The disclosed apparatus and method is especially useful for making inorganic oxide mixtures and for screening the mixtures based on their ability to catalyze the conversion of fluid reactants.

专利号:EP-3197599-A1
优先权日:2014-09-26
标 题:Solid state synthesis of oxidative dehydrogenation catalysts

专利号:EP-0479162-A1
优先权日:1990-10-01
标题:Low temperature synthesis of alkali metal niobates and tantalates

专利号:CA-2962749-A1
优先权日:2014-09-26
标 题:Solid state synthesis of oxidative dehydrogenation catalysts