Silicate producing method

Chemistry of inorganic compounds – Silicon or compound thereof – Oxygen containing

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C423S324000, C423S326000, C423S327100

Reexamination Certificate

active

07947244

ABSTRACT:
The present invention relates to a process for the preparation of a silicate comprising at least silicon and oxygen, comprising(1) mixing of silicon dioxide and/or of a silicon dioxide precursor with an aqueous solution comprising at least one tetraalkylammonium compound comprising R1R2R3R4N+and at least one base, wherein R1and R2are methyl and both R3and R4are n-propyl;(2) heating of the colloidal solution obtained according to (1) to a temperature in the range of from greater than the boiling point of the colloidal solution under the chosen pressure to 180° C. at atmospheric pressure to give a suspension comprising at least one silicate,wherein the silicate comprising at least silicon and oxygen is added as a crystallization auxiliary in (1).

REFERENCES:
patent: 5296211 (1994-03-01), Baldus et al.
patent: 5885546 (1999-03-01), Kumar et al.
patent: 6329062 (2001-12-01), Gaynor
patent: 6380119 (2002-04-01), Grosch et al.
patent: 6710002 (2004-03-01), Grosch et al.
patent: 7314605 (2008-01-01), Wang et al.
patent: 197 23 949 (1998-12-01), None
patent: 98/55228 (1998-12-01), None
R.A. Young (editor), “The Rietveld Method”, Oxford University Press, 1995, Oxford, Chapter 7: Analytical Profile fitting of X-ray Powder diffraction profiles in Rietveld analysis, pp. 111-131.
Ch. Baerlocher, W.M. Meier, D.H. Olson, “Atlas of Zeolite Framework Types Fifth, Edition”, 2001 Elsevier, pp. 10-15.
Ullmanns Encyclopedia of Technical Chemistry, 4thEdition, vol. 2, pp. 295 et seq., 1972.
Donald W. Breck, “Zeolite Molecular Sieves” 1974, J. Wiley, pp. 634-641.
Y. X. Wang, et al., “Synthesis and Crystal Structure of Zeolite Rub-41 Obtained As Calcination Product of a Layered Precursor: a Systematic Approach to a New Synthesis Route”, Chem. Mater, vol. 17, Dec. 15, 2004, pp. 43-49.
U.S. Appl. No. 12/594,727, filed Oct. 5, 2009, Mueller, et al.

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

Silicate producing method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Silicate producing method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Silicate producing method will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2670564

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