Quotables
"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| 6872369 | Selective separation of iron by treatment with an ion-exchanging resin comprising diphosphonic acid groups The invention relates to a process for selectively separating iron from other metal ions, in particular ions present in certain oxidation catalysts. It also relates to a process for recycling catalysts in the reaction for the oxidation of alcohols and/or keto... | 03/29/2005 |
| 6822117 | Method for making adipic acid The present invention relates to a process for the manufacture of adipic acid, more particularly of adipic acid crystals. It relates more specifically to a process for the treatment of the adipic acid crystals obtained on conclusion of crystallization, which ... | 11/23/2004 |
| 6232488 | Method for hydrogenating dinitriles The present invention relates to a process for the hydrogenation of aliphatic dinitriles at least partly into corresponding aminonitriles. More specifically, the invention consists of a continuous process for the hydrogenation of dinitrile, at least partl... | 05/15/2001 |
| 6222069 | Method for purifying adipic acid in water The invention discloses a method for purifying adipic acid in water. More precisely it discloses an improvement in adipic acid crystallization or recrystallization in water, characterised in that the said crystallization or recrystallization is effected i... | 04/24/2001 |
| 6214190 | Method for separating a catalyst by membrane electrodialysis The present invention relates to a process for isolating, by membrane electrodialysis, a catalyst from a solution containing it. More precisely, it relates to the isolation of a catalyst used in a homogeneous phase molecular oxidation reaction. The invent... | 04/10/2001 |
| 6100396 | Method for purifying lactams A method for purifying lactams by liquid-liquid extraction and/or processing with an ion exchange resin is disclosed. The method is useful for purifying lactams produced by the cyclising vapour-phase hydrolysis of an aliphatic aminonitrile, and comprises ... | 08/08/2000 |
| 6083869 | Method for preparing ammoxidation catalysts The present invention relates to a process for the preparation of mixed vanadium, antimony and iron oxides and to their use as catalysts for the ammoxidation of alkanes. The process for the preparation of a mixed oxide defined above is characterized in th... | 07/04/2000 |
