Preparation of crystalline metal silicate and borosilicate compo

Details Preparation of crystalline metal silicate and borosilicate compo Preparation of crystalline metal silicate and borosilicate compo

1982-12-29

1984-07-31

Meros, Edward J.

Chemistry of inorganic compounds

Boron or compound thereof

Oxygen containing

423326, 423328, 423329, 423332, 423333, 502 60, 502 77, 502202, C01B 3320, C01B 3326, C01B 3510

Patent

active

044629710

ABSTRACT:
Crystalline metal silicates and metal borosilicate compositions exhibit useful catalytic properties when the reaction mixture from which they are prepared includes a metal whose oxide precipitates at a pH above 7 and an amount of urea or other compound which upon hydrolysis releases ammonia. The precipitated metal hydroxide is incorporated into the crystalline composition as it forms. These compositions exhibit the X-ray pattern of a ZSM-5 zeolite and have an aluminum content of less than 100 wppm and a composition expressed in terms of its oxides as follows:

REFERENCES:
patent: 3941871 (1976-03-01), Dwyer et al.
patent: 4049573 (1977-09-01), Kaeding
patent: 4208305 (1980-06-01), Kouwenhoven et al.
patent: 4269813 (1981-05-01), Klotz
patent: 4299808 (1981-11-01), Klotz
patent: 4376757 (1983-03-01), Hinnenkamp et al.

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