Process for synthesis of high-silica silicate molecular sieve

Details Process for synthesis of high-silica silicate molecular sieve Process for synthesis of high-silica silicate molecular sieve

1998-01-13

2000-04-18

Wood, Elizabeth

Chemistry of inorganic compounds

Zeolite

423705, 423713, 423DIG27, 502 74, C01B 3906

Patent

active

060512059

ABSTRACT:
A process for synthesizing a high-silica aluminosilicate molecular sieve, includes: subjecting, to hydrothermal synthesis, a raw material containing Al, H, O and Si and, as other elements, at least Fe and having a Si/Al molar ratio of 50 or more and a Si/Fe molar ratio of 80 or less (45 or less when a high-silica aluminosilicate molecular sieve having a .beta. type zeolite structure is produced) and then subjecting the resulting material to heat treatment in an oxidizing atmosphere at 300.degree. C. or more. The above process can synthesize a high-silica zeolite low in Al content directly without dealumination operation, and can provide process simplification and a higher yield.

REFERENCES:
patent: 4208305 (1980-06-01), Kouwenhoven et al.
patent: 4371628 (1983-02-01), Nanne et al.
patent: 4853203 (1989-08-01), Guth et al.
patent: 5110570 (1992-05-01), Bellussi et al.
patent: 5219813 (1993-06-01), Kumar et al.
patent: 5554356 (1996-09-01), Sexton et al.
patent: 5677254 (1997-10-01), Nojima et al.
The 72nd Discussion on Catalyst (1993 Fall) Preliminary Draft 3H318 (pp. 248-249) (No Month).
Chemical Abstracts, vol. 127, No. 2; Jul. 14, 1997; Columbus, Ohio; abstract No. 22858; Yamamoto Azumaet al; "Hydrothermal-resistant crystalline alumionsilicate salt molecular sieves and their use as hydrocarbon adsorbents" XP002091981 *abstract* & JP 09 099207 A (NGK Insulators, Ltd); Apr. 15, 1997.

Affiliated with

Also associated with

Rating

Process for synthesis of high-silica silicate molecular sieve does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for synthesis of high-silica silicate molecular sieve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for synthesis of high-silica silicate molecular sieve will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2334276