Faujasite adsorbents with nonuniform Al distribution

Chemistry of inorganic compounds – Zeolite

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

428DIG21, C01B 3922

Patent

active

058826254

ABSTRACT:
A faujasite aluminosilicate with a Si/Al ratio in the range of 1.05 to 1.26 having an non-uniform aluminum distribution, synthesized by crystallizing the zeolite from a mixture of alkali metal aluminate and alkali metal silicate wherein the mixture has an alkali metal oxide to silica ratio of at least 1.6 and a water to alkali metal oxide ratio of at least 37. The X-zeolite has utility as a gas separation adsorbent such as separating oxygen from nitrogen in air.

REFERENCES:
patent: H282 (1987-06-01), Edwards et al.
patent: 2882244 (1959-04-01), Milton
patent: 3510258 (1970-05-01), Hinden et al.
patent: 3720756 (1973-03-01), Schwochow et al.
patent: 4416805 (1983-11-01), Kostinko
patent: 4859217 (1989-08-01), Chao
patent: 5118482 (1992-06-01), Narayama et al.
patent: 5441557 (1995-08-01), Mullhaupt et al.
patent: 5464467 (1995-11-01), Fitch et al.
patent: 5487882 (1996-01-01), Hu et al.
patent: 5554208 (1996-09-01), Mullhaupt et al.
patent: 5616170 (1997-04-01), Ojo et al.
"High-Resolution Solid-State NMR of Silicates and Zeolites", G. Engelhardt, D. Michel, John Wiley & Sons, 1987, pp. 222-241. (No month).
Engelhardt (Z. Anorg. Allg. Chem. 1981, 482, pp. 49-64) (w/English translation). (No month).
Nature (1981, 292, 228-230). Ramdas et al. (No month).
Klinowski, J. Chem Soc. Faraday 2, 1982, 78, pp. 1025-1050. (No month).
Forano, C.; Slade, T. C. T.; Andersen, E. Krogh; Andersen, I. G. Krogh; Prince, E. J. Solid State Chem. 1989, 82, pp. 95-102. (No month).
Melchior, M. T.; Vaughan, D. E. W.; Pictroski, C.F. Journal of Physical Chemistry, 1995, 99, pp. 6128-6144. (No month).
Vega A.J. Journal of Physical Chemistry, 1996, 100, pp. 833-836. (No month).
Smith, J.V. Advances in Chemistry Series, vol. 101, Molecular Sieve Zeolites-I, American Chemical Society Washington, D.C. 1971, pp. 171-200. (No month).
"Characterization of the Silicon-Aluminum Distribution in Synthetic Faujasites by High-Resolution Solid-State Si NMR,", Melchior, M. T., et al., J. Am. Chem. Soc. 1982, 104, pp. 4859-4864 (No month).
"The Compositional Dependence of Si Chemical Shifts in Faujasite Framework Zeolites" 1989 Elsevier Science Publishers B. V., Amsterdam, pp. 805-815. Melchior (No month).
"A Statistical Approach to the Interpretation of Silicon-29 NMR of Zeolites", Vega, A. J., 1983 American Chemical Society, pp. 217-230. (No month).
"Powder Neutron Diffraction and Si MAS NMR Studies of Siliceous Zeolite-Y," Hriljac, J.A., et al., Journal of Solid State Chemistry 106, pp. 66-72 (1993). (No month).
"Crystal Structures: A Working Approach", Megaw, Helen D., 1973, W. B. Saunders Company, pp. 282-285. (No month).
"Silicon and Aluminum Ordering of Zeolites: Interpretation of Silicon-29 NMR Data for Faujasite and ZK4," 1983 American Chemical Society, 15, pp. 243-265. Melchior (No month).
"Atlas of Zeolite Structure Types" Merer W. M., Olsen, D. H. Third Revised Edition, Butterworth Herneman, 1992. Linde Type L, LTL, pp. 124-125 (No month).

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

Faujasite adsorbents with nonuniform Al distribution does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Faujasite adsorbents with nonuniform Al distribution, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Faujasite adsorbents with nonuniform Al distribution will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-814657

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