Chemistry of inorganic compounds – Silicon or compound thereof – Oxygen containing
Patent
1983-10-11
1985-07-09
Meros, Edward J.
Chemistry of inorganic compounds
Silicon or compound thereof
Oxygen containing
423332, 423335, C01B 3328
Patent
active
045281726
ABSTRACT:
The invention provides a process for the manufacture of zeolites of the ZSM-5 type by heating an aqueous solution or suspension containing a silicon dioxide source, alkali metal hydroxide and optionally an aluminum source until crystallization occurs. Furthermore, the solution or suspension contains an organic phosphorus compound which is selected from the group consisting of OPR.sup.1 R.sup.2 R.sup.3 and PR.sup.1 R.sup.2 R.sup.3, in which R.sup.1, R.sup.2 and R.sup.3, independently from one another, each are alkyl or alkoxy having each from 2 to 10 carbon atoms.
REFERENCES:
patent: 3709979 (1973-01-01), Chu
patent: 4060590 (1977-11-01), Whittam et al.
patent: 4151189 (1979-04-01), Rubin et al.
patent: 4229424 (1980-10-01), Kokotailo
patent: 4287166 (1981-09-01), Dwyer et al.
Lok et al., "Zeolites", 1983, vol. 3, Oct., pp. 282-291.
Kalz Hans-Jurgen
Rieck Hans-Peter
Hoechst Aktiengesellschaft
Meros Edward J.
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