Following is a CAS database record representing a highly cited patent family.
|
CAS indexed 2 chemical substances from this document.
CAS subject entries for this document include: Catalysts and Catalysis. | |
CAPLUS COPYRIGHT 2006 ACS on STN
| TITLE:
| Porous crystalline synthetic material consisting of silicon and titanium oxides |
| INVENTOR(S):
| Perego, Giovanni; Taramasso, Marco; Notari, Bruno |
| PATENT ASSIGNEE(S):
| Snamprogetti SpA, Italy |
| SOURCE:
| Belg., 18 pp. CODEN: BEXXAL |
| LANGUAGE:
| French |
PATENT INFORMATION: PATENT NO. KIND DATE APPLICATION NO. DATE
--------------- ---- -------- -------------------- --------
BE 886812 A1 19810622 BE 1980-203283 19801222
DK 8004939 A 19810622 DK 1980-4939 19801119
DK 157361 B 19891227
DK 157361 C 19900521
AU 8064513 A1 19810702 AU 1980-64513 19801119
AU 537263 B2 19840614
GB 2071071 A 19810916 GB 1980-37252 19801120
GB 2071071 B2 19830602
ZA 8007233 A 19820127 ZA 1980-7233 19801120
CA 1155830 A1 19831025 CA 1980-365222 19801121
AT 8005868 A 19870715 AT 1980-5868 19801201
AT 385022 B 19880210
IL 61654 A1 19840330 IL 1980-61654 19801207
CH 645599 A 19841015 CH 1980-9079 19801209
CS 257253 B2 19880415 CS 1980-8785 19801212
BR 8008379 A 19810707 BR 1980-8379 19801217
RO 81245 P 19830601 RO 1980-102875 19801217
NO 8003859 A 19810622 NO 1980-3859 19801218
NO 158934 B 19880808
NO 158934 C 19881116
SE 8008961 A 19810622 SE 1980-8961 19801218
SE 447818 B 19861215
SE 447818 C 19870326
FR 2471950 A1 19810626 FR 1980-26959 19801218
FR 2471950 B1 19850621
DE 3047798 A1 19811022 DE 1980-3047798 19801218
DE 3047798 C2 19861009
DD 155420 C 19820609 DD 1980-226268 19801218
NL 8006939 A 19810716 NL 1980-6939 19801219
NL 191383 B 19950201
NL 191383 C 19950703
JP 56096720 A2 19810805 JP 1980-179066 19801219
JP 01042889 B4 19890918
ES 498480 A1 19811116 ES 1980-498480 19801219
HU 26296 O 19830928 HU 1980-3066 19801219
HU 183272 B 19840428
PL 134017 B3 19850731 PL 1980-228600 19801219
RU 2076775 C1 19970410 RU 1980-3221912 19801219
IN 154032 A 19840908 IN 1980-CA1412 19801220
US 4410501 A 19831018 US 1982-393379 19820629
ABSTRACT:
A porous cryst. synthetic material is prepd. from a base of Si and Ti oxides with a Silicalite structure in which Ti is substituted for Si and is represented by the formula: xTiO2.(1 - x)SiO2, where x is 0.01-0.025. The reactants are: source of Si and Ti oxides, alkali metal oxide, nitrogenous org. base, and H2O in the following molar ratios: SiO2/TiO2 35-65, OH-/SiO2 0.03-0.6, H2O/SiO2 60-100, M/SiO2 0, RN+/SiO2 0.4-1.0, where M is Na or K and RN+ a cation of nitrogenous org. base. The mixt. is subjected to hydrothermal treatment in an autoclave at 130-200.degree., under its autogenous pressure for 6-30 days. The crystals. are sepd. from the mother soln., washed with H2O, dried, and heated 1-72 h in air at 550.degree.. The SiO2 source may be a tetraalkyl orthosilicate, colloidal SiO2, Na or K silicate. The TiO2 source may be TiCl4, TiOCl2, or Ti(OEt)4. The nitrogenous org. base is tetraalkylammonium hydroxide. The material is examd. by x-rays and IR. The morphol. is examd. and studied. This material finds use as a catalyst; its properties can be modified by introduction of other elements of substitution (B, Al, Fe, etc).
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Updated 5/3/2007 2:16:38 PM
