Method for the production of a titanium-containing zeolite

Chemistry of inorganic compounds – Zeolite – Isomorphic metal substitution

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C423S326000, C423S716000, C502S214000, C549S531000

Reexamination Certificate

active

06841144

ABSTRACT:
The present invention concerns a method for the production of a titanium-containing zeolite whereby a synthesis gel is formed by combining and hydrolysing a hydrolysable silicon compound, a hydrolysable titanium compound and a basic quaternary ammonium compound in an aqueous medium, in quantities such that relative to the starting compounds the molar ratio of Si/Ti is greater than or equal to 30 and that of N/Si is 0.12 to less than 0.20, and the synthesis gel is then crystallised at a temperature of 150 ° C. to 220 ° C. for a period of less than 3 days, and a titanium-containing zeolite obtainable by this method.

REFERENCES:
patent: 4410501 (1983-10-01), Taramasso et al.
patent: 5082641 (1992-01-01), Popa et al.
patent: 5466835 (1995-11-01), Nemeth et al.
patent: 5525563 (1996-06-01), Thiele et al.
patent: 5527520 (1996-06-01), Saxton et al.
patent: 5637715 (1997-06-01), Thiele et al.
patent: 5683952 (1997-11-01), Onozawa et al.
patent: 5688484 (1997-11-01), Saxton et al.
patent: 5758778 (1998-06-01), Kershner
patent: 5885546 (1999-03-01), Kumar
patent: 5919430 (1999-07-01), Hasenzahl et al.
patent: 6054112 (2000-04-01), Hasenzahl et al.
patent: 6106803 (2000-08-01), Hasenzahl et al.
patent: 20010021369 (2001-09-01), Lin et al.
patent: 1 001 038 (1989-06-01), None
patent: 196 23 611 (1997-12-01), None
patent: 196 23 972 (1997-12-01), None
patent: 190 39 782 (2000-03-01), None
patent: 0 325 053 (1969-07-01), None
patent: 0 791 558 (1997-08-01), None
patent: 838431 (1998-04-01), None
patent: 0 906 784 (1999-04-01), None
patent: 0 906 784 (2000-03-01), None
patent: 2 471 950 (1981-06-01), None
patent: WO 9928030 (1999-06-01), None
patent: WO 9952626 (1999-10-01), None
“Studies on the Synthesis of Titanium Silicalite, TS-1,” Thangaraj A et al., Zeolites, US, Butterworth-Heinemann, vol. 12, No. 8, Nov. 1, 1992, pp. 943-9510, XP000198990, ISSN: 0144-2449, 6 pps.
“Preparation of Colloidal Suspensions of Discrete TS-1 Crystals,” Zhang, G. et al., Chemistry of Materials, US, American Chemical Society, Washington, vol. 9, No. 1, 1997, pp. 210-217, XP000683976, ISSN: 0897-4756, 8 pps.
“Catalytic Properties of Crystalline Titanium Silicalites,” Thangaraj, A. et al., Journal of Catlysis, US, Academic Press, Inc., vol. 130, 1991, pp. 1-8, XP002143172, 8 pps.
International Search Report, dated Jul. 24, 2001, for PCT Application No. PCT/EP01/02118, 3 pps.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method for the production of a titanium-containing zeolite does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for the production of a titanium-containing zeolite, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for the production of a titanium-containing zeolite will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3432288

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.