Production of shaped catalysts or carriers comprising titanium oxides
Patent 4113660 Issued on September 12, 1978. Estimated Expiration Date: 
December 22, 1996. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 22, 1996. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3922235 Catalyst for selective reduction of nitrogen oxides Patent #: 4048112 InventorsAssigneeApplicationNo. 05/753323 filed on 12/22/1976US Classes:502/84, And metal, metal oxide, or metal hydroxide423/239.1, Utilizing solid sorbent, catalyst, or reactant502/208, Phosphorus or compound containing same502/242, Of Group IV (i.e., Ti, Zr, Hf, Ge, Sn or Pb)502/340, Of Group II (i.e., alkaline earth, Be, Mg, Zn, Cd or Hg)502/350Of titaniumExaminersPrimary: Shine, W. J.Attorney, Agent or FirmInternational ClassesB01J 21/00 (20060101)B01J 23/22 (20060101) B01J 21/06 (20060101) B01J 23/30 (20060101) B01D 53/86 (20060101) B01J 23/16 (20060101) B01J 23/72 (20060101) B01J 37/00 (20060101) Foreign Application Priority Data1975-12-23 JPAbstractA process for preparing shaped catalysts or carriers mainly containing titanium oxide and improved in mechanical strength which comprises calcining a material mainly comprising titanium oxide or a substance convertible into titanium oxide on calcination in the presence of metatitanic acid sol or gel, said metatitanic acid sol being the one prepared by deflocculation of metatitanic acid obtained in the course of the production of titanium oxide according to a conventional sulfuric acid process and said metatitanic acid gel being the one prepared by adjusting said metatitanic acid sol to pH 1 or higher. |
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