Claims
- 1. A method for preparing a porous silico-crystal characterized by an x-ray diffraction pattern whose values are set forth in Table 1 of the specification which comprises preparing a substantially alumina-free reaction mixture containing a source of a silica, an alkali metal oxide, RN, water and having a composition in terms of mole ratios of oxides, falling within the following ranges:
- Al.sub.2 O.sub.3 /SiO.sub.2 =0
- Na/SiO.sub.2 =0 to 2.0
- OH.sup.- /SiO.sub.2 =0 to 0.1
- H.sup.+ (added)/SiO.sub.2 =0 to 0.2
- H.sub.2 O/SiO.sub.2 =10 to 100
- RN/SiO.sub.2 =0.01 to 2.0
- wherein RN is an organic diamine of the formula NH.sub.2 --C.sub.n H.sub.2n --NH.sub.2 and wherein n=4 to 12 and maintaining said mixture at crystallization temperature until crystals of said silico-crystal are formed.
- 2. A method according to claim 1 wherein RN further comprises an organic diamine of the formula NH.sub.2 --C.sub.n H.sub.2n --NH.sub.2 and wherein n=4 to 10.
CROSS-REFERENCE TO RELATED APPLICATION
This application is a continuation of application Ser. No. 064,703 filed Aug. 8, 1979 which is a continuation-in-part of application Ser. No. 013,640 filed Feb. 21, 1979, both now abandoned.
US Referenced Citations (9)
Foreign Referenced Citations (1)
Number |
Date |
Country |
1365318 |
Aug 1974 |
GBX |
Continuations (1)
|
Number |
Date |
Country |
Parent |
64703 |
Aug 1979 |
|
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
13640 |
Feb 1979 |
|