Crystalline aluminosilicate and process for its production

US4481174A · kind A · utility

Assignee

• Degussa AG · DE

Inventors

• Michael Baacke · Hanau, DE
• Peter Kleinschmit · Hanau, DE

Key dates

• Filing date: Mar 23, 1983
• Grant date: Nov 6, 1984
• Expiry date: Mar 23, 2003

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S423/30
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The crystalline aluminosilicate PZ 1 is produced by carrying out the crystalline in the presence of an organic template compound of the formula R.sub.3 P--(CH.sub.2).sub.n --PR.sub.3 X.sub.2 where R is a lower alkyl group, n is an integer of 2 to 6 and X is Br.sup.- or I.sup.-. The synthesis mixture has the composition: ______________________________________ SiO.sub.2 /Al.sub.2 O.sub.3 = 20-250 Na.sub.2 O/SiO.sub.2 = 0.01-0.5 OH/SiO.sub.2 = 0.01-1.0 T/SiO.sub.2 = 0.01-0.2 H.sub.2 O/SiO.sub.2 = 10-40 ______________________________________ whereas T means template compound. The synthesis mixture is stirred at a temperature between 90.degree. and 200.degree. C. at autogenous pressure. The aluminosilicate PZ 1 is changed into the aluminosilicate PZ 2 by treatment with dilute acids or with ammonium chloride and subsequent calcining. This aluminosilicate PZ 2 can be employed as catalyst in the conversion of alcohols into hydrocarbons.