Intrinsically safe oxidation process
    8.
    发明授权
    Intrinsically safe oxidation process 失效
    本质安全氧化工艺

    公开(公告)号:US06768013B1

    公开(公告)日:2004-07-27

    申请号:US09882519

    申请日:2001-06-15

    申请人: Peter R. Pujado

    发明人: Peter R. Pujado

    IPC分类号: C07D30112

    摘要: A novel process for the direct oxidation of hydrogen and hydrocarbons is disclosed, where the explosion risks inherent in gas phase oxidations are substantially eliminated. Gaseous oxidation reactants are soluble in a first reaction solvent phase such as a perfluorocarbon (e.g. C8F18) and the oxidation product is preferentially soluble in a second product solvent phase such as water or a dilute acid. A solid catalyst such as palladium on alumina is then contacted with the dissolved reactants. The oxidation product such as hydrogen peroxide may be separated from the reaction solvent phase by extraction into the immiscible product solvent phase and then separated from it by distillation, thereby allowing re-use of the aqueous phase. The present invention may be carried out using a two-phase reaction system whereby both the reaction solvent and product solvent are contained within a reaction vessel into which the solid catalyst is slurried and mechanically agitated to promote the reaction.

    摘要翻译: 公开了用于氢气和烃直接氧化的新方法,其中基本上消除了气相氧化中固有的爆炸危险。 气态氧化反应物可溶于第一反应溶剂相如全氟化碳(例如C8F18),氧化产物优选溶于第二产物溶剂相如水或稀酸。 然后将固体催化剂如氧化铝上的钯与溶解的反应物接触。 氧化产物如过氧化氢可以通过萃取到不混溶的产物溶剂相中而从反应溶剂相中分离出来,然后通过蒸馏从其中分离出来,从而允许再次使用水相。 本发明可以使用两相反应体系进行,其中反应溶剂和产物溶剂都包含在反应容器中,固体催化剂在其中浆化并机械搅拌以促进反应。

    Oxidation reaction process catalyzed by phase-transfer catalyst controlling reaction
    9.
    发明申请
    Oxidation reaction process catalyzed by phase-transfer catalyst controlling reaction 有权
    通过相转移催化剂控制反应催化氧化反应过程

    公开(公告)号:US20040030054A1

    公开(公告)日:2004-02-12

    申请号:US10432874

    申请日:2003-05-28

    IPC分类号: C08J003/00 C07B033/00

    摘要: The present invention relates to an oxidation reaction catalyzed by a reaction controlled phase-transfer catalyst having the general formula of null(R1)(R2)(R3)(R4)NnullxHynullAnullAnull or QmMO3(L). The catalysts themselves are not soluble in the reaction medium, but can form an active species that is soluble in the reaction medium under the action of one of the reactants. The active species can in turn react selectively with another reactant. When one of the reactants is completely consumed, the catalyst will separate out from the reacting system and can be recovered by means of simple separation method. The recovered catalyst can be recycled with comparable efficiency as that of the original catalyst. The separation of said catalyst is similar to that of heterogeneous catalyst while said catalyst will completely exhibit the characteristics of homogeneous catalyst during the reaction. The catalytic oxidation reaction system is especially suitable for the large-scale industrial production of epoxy cyclohexane from cyclohexene or of epoxy propane from propylene.

    摘要翻译: 本发明涉及由具有通式[(R 1)(R 2)(R 3)(R 3)(R 4))N] x H y的反应控制相转移催化剂催化的氧化反应 [A] A]或QmMO 3(L)。 催化剂本身不溶于反应介质,但可以在一种反应物的作用下形成可溶于反应介质的活性物质。 活性物质又可以​​选择性地与另一种反应物反应。 当其中一种反应物被完全消耗时,催化剂将从反应体系中分离出来并且可以通过简单的分离方法回收。 回收的催化剂可以与原始催化剂的效率相当的效率再循环。 所述催化剂的分离类似于非均相催化剂,而所述催化剂在反应期间将完全表现出均相催化剂的特性。 催化氧化反应体系特别适用于从环己烯或丙烯环氧丙烷大规模工业生产环氧环己烷。