Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Patent
1995-03-24
1997-01-14
Beck, Shrive
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
502353, 502182, B01J 2320
Patent
active
055939368
ABSTRACT:
New hydrated niobium oxide and hydrated tantalum oxide catalysts containing pores having diameters in the range from 0.4 to 10,000 nm are characterized in that the volume of the pores of the catalyst having a diameter of from 100 to 1000 nm is at least 30% of the total pore volume of the catalyst. The catalysts can be prepared by mixing hydrated niobium oxide or hydrated tantalum oxide with an inert solid and converting this mixture into a solid pellet form, with the pressure in the apparatus for preparing catalysts in pellet form being set in such a way that the volume of the pores of the catalyst having a diameter of from 100 to 1000 nm is at least 30% of the total pore volume of the catalyst. Such catalysts are particularly suitable for preparing N-alkylanilines from anilines and alkanols.
REFERENCES:
patent: 4973569 (1990-11-01), Bowman et al.
patent: 5166440 (1992-11-01), Immel et al.
Glock Volker
Jentsch Joerg-Dietrich
Koller Horst
Pennemann Bernd
Pentling Ursula
Bayer Aktiengesellschaft
Beck Shrive
Meeks Timothy H.
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