Patent
Method for the preparation of vanadium-antimony-oxide based oxidation and ammoxidation catalysts using non-aqueous media
| العنوان: | Method for the preparation of vanadium-antimony-oxide based oxidation and ammoxidation catalysts using non-aqueous media |
|---|---|
| Patent Number: | 6,887,825 |
| تاريخ النشر: | May 03, 2005 |
| Appl. No: | 10/306383 |
| Application Filed: | November 27, 2002 |
| مستخلص: | Vanadium antimony oxide catalysts useful for the selective oxidation and ammoxidation of paraffins, olefins, and aromatic compounds are manufactured in a process comprising (i) forming a catalyst precursor slurry comprising a vanadium containing compound and an antimony containing compound in a liquid solvent medium which comprises an organic solvent, and (ii) recovering a vanadium antimony oxide from the slurry by drying the slurry in order to remove water and organic solvent. |
| Inventors: | Brazdil, James F. (Glen Ellyn, IL, US) |
| Assignees: | The Standard Oil Company (Warrenville, IL, US) |
| Claim: | 1. A process for the preparation of a vanadium antimony oxide catalyst comprising vanadium, antimony, at least one of tin, titanium, iron, chromium and gallium, and optionally at least one element selected from the group consisting of lithium, magnesium, sodium, calcium, strontium, barium, cobalt, nickel, zinc, germanium, niobium, zirconium, molybdenum, tungsten, copper, tellurium, tantalum, selenium, bismuth, cerium, indium, arsenic, boron, aluminum, and manganese, wherein the relative ratios of these elements are represented by the following general formula: V 1 Sb m A a D d O x wherein A is at least one of Ti, Sn, Fe, Cr, and Ga. D when present is at least one of Li, Mg, Ca, Sr, Ba, Co, Ni, Zn, Ge, Nb, Zr, Mo, W, Cu, Te, Ta, Se, Bi, Ce, In, As, B, and Mn, m is between about 0.5 to about 10 a is between about 0 to about 10 d is 0 to about 10, and x is determined by the oxidation state of the cations present, wherein the process comprises (i) forming a catalyst precursor slurry comprising a vanadium containing compound and an antimony containing compound in a liquid solvent medium which comprises at least one organic solvent selected from the group consisting of nitriles, carboxylic acids, amines, and sulfides, and (ii) recovering a vanadium antimony oxide from the slurry by drying the slurry in order to remove the liquid solvent medium. |
| Claim: | 2. The process of claim 1 wherein the liquid solvent medium comprises 10 to 100 wt % organic solvent. |
| Claim: | 3. The process of claim 1 wherein the liquid solvent medium comprises 50 to 100 wt % organic solvent. |
| Claim: | 4. The process of claim 1 wherein the liquid solvent medium comprises 80 to 100 wt % organic solvent. |
| Claim: | 5. The process of claim 1 , wherein the catalyst comprises vanadium, antimony, iron, at least one of tin, titanium, chromium and gallium, and at least one other promoter element selected from the group consisting of lithium, magnesium, sodium, calcium, strontium, barium, cobalt, chromium, gallium, nickel, zinc, germanium, zirconium, tantalum, bismuth, cerium, indium, boron, aluminum, and manganese, optionally one or more of molybdenum, tungsten and niobium, and optionally one or more of arsenic, tellurium and selenium, wherein the relative proportions of these elements are represented by the following formula: V 1 Sb b A c Fe d D e Q f R g O x where A is at least one of Ti, Sn, Cr, and Ga D is at least one of Li, Mg, Ca, Sr, Ba, Co, Ni, Zn, Ge, Zr, Cu, Ta, Bi, Ce, in, B, Al and Mn Q is selected from the group consisting of Mo, W, Nb, R is selected from the group consisting of As, Te, Se, and 0.8≦b≦4, 0.01≦c≦2, 0.01≦d≦2, 0≦e≦2, 0≦f<0.01, 0≦g<0.1, and x is determined by the oxidation state of the cations present. |
| Current U.S. Class: | 502/353 |
| Patent References Cited: | 3681421 August 1972 Barclay et al. 3860534 January 1975 Harris et al. 4336205 June 1982 Onishi et al. 4746641 May 1988 Guttmann et al. 4784979 November 1988 Toft et al. 4788317 November 1988 Guttmann et al. 4879264 November 1989 Toft et al. 5008427 April 1991 Brazdil, Jr. et al. 5094989 March 1992 Lynch et al. 5214016 May 1993 Brazdil et al. 5258543 November 1993 Suresh et al. 5332855 July 1994 Blanchard et al. 5432141 July 1995 Brazdil, Jr. et al. 5498588 March 1996 Brazdil et al. 5663392 September 1997 Albonetti et al. 5675057 October 1997 Bremer et al. 5686381 November 1997 Albonetti et al. 5696047 December 1997 Bremer et al. 5821192 October 1998 Seely et al. 5866502 February 1999 Cirjak et al. 5994259 November 1999 Brazdil, Jr. et al. 6083869 July 2000 Albonetti et al. 6087524 July 2000 Brazdil, Jr. et al. 6156920 December 2000 Brazdil, Jr. et al. 6166241 December 2000 Kayou et al. 6200926 March 2001 Blanchard et al. 6514902 February 2003 Inoue et al. 6589907 July 2003 Chaturvedi et al. 6656873 December 2003 Chaturvedi et al. 1034914 July 1966 WO 0012209 March 2000 |
| Primary Examiner: | Johnson, Christina |
| Attorney, Agent or Firm: | Yusko, David P. |
| رقم الانضمام: | edspgr.06887825 |
| قاعدة البيانات: | USPTO Patent Grants |
| الوصف غير متاح. |