| Patent Number |
Title Of Patent |
Date Issued |
| 5393511 |
Synthesis of zeolites of faujasite structure |
February 28, 1995 |
| A process is provided for the preparation of zeolites belonging to the faujasite structural class and exhibiting a Si:Al ratio higher than 1 in which a reaction mixture is first produced, which has a pH higher than 10 and contains water, a source of tetravalent silicon, a source of triva |
| 5098686 |
Synthesis of zeolites of faujasite structure |
March 24, 1992 |
| A process is provided for the preparation of zeolites belonging to the faujasite structural class and exhibiting a Si:Al ratio higher than 1 in which a reaction mixture is first produced which has a pH higher than 10 and contains water, a source of tetravalent silicon, a source of trival |
| 5061670 |
Process for the preparation of a catalyst capable of promoting the oxidative conversion of metha |
October 29, 1991 |
| A process is provided for the preparation of a catalyst which is particualrly active and selective in the oxidative conversion of methane into higher hydrocarbons and especially into C.sub.2.sup.+ hydrocarbons.In the process, an aqueous phase containing in solution cations of at least on |
| 4729888 |
Process of recovery of sulphur from minerals containing pyrites |
March 8, 1988 |
| Production of elementary sulphur from an iron sulphide mineral, which comprises oxidizing acid lixiviation of the pulverized mineral, for extraction of the sulfur. The pulp obtained from the lixiviation is treated in the hot with an organic solvent for sulphur, the solvent having a d |
