PROCESS FOR SELECTIVE MANUFACTURE OF 2,6-DIALKYLNAPHTHALENES

    公开(公告)号:AU4489289A

    公开(公告)日:1990-05-01

    申请号:AU4489289

    申请日:1989-10-05

    Applicant: CATALYTICA INC

    Abstract: A process for the selective manufacture of 2,6-diisopropylnaphthalene from naphthalene advantageously combines an equilibration reactor to enhance the amount of monoisopropylnaphthalene fed to the alkylation reactor, and the use of a shape selective catalyst in the alkylation reactor, to obtain an alkylation reaction product in which the 2,6-diisopropylnaphthalene isomer comprises greater than 39 mole percent of the total diisopropylnaphthalene obtained. Further, this combination of reaction steps and conditions produces a reaction product in which the ratio of 2,6-diisopropylnaphthalene to 2,7-diisopropylnaphthalene is greater than 1.0, preferably greater than 1.2. Recycled process components are fed to the equilibration reactor where they are combined with fresh naphthalene feed to provide a monoisopropylnaphthalene enriched feed to the alkylation reactor.

    3.
    发明专利
    未知

    公开(公告)号:BR9106136A

    公开(公告)日:1993-03-02

    申请号:BR9106136

    申请日:1991-03-05

    Applicant: CATALYTICA INC

    Abstract: PCT No. PCT/US91/01508 Sec. 371 Date Sep. 4, 1992 Sec. 102(e) Date May 24, 1991 PCT Filed Mar. 5, 1991 PCT Pub. No. WO91/13851 PCT Pub. Date Sep. 19, 1991.The present invention provides aqueous catalyst solutions useful for oxidation of olefins to carbonyl products, comprising a palladium catalyst, a polyoxoacid or polyoxoanion oxidant comprising vanadium, and chloride ions. It also provides processes for oxidation of olefins to carbonyl products, comprising contacting olefin with the aqueous catalyst solutions of the present invention. It also provides processes for oxidation of olefins to carbonyl products by dioxygen, comprising contacting olefin with the aqueous catalyst solutions of the present invention, and further comprising contacting dioxygen with the aqueous catalyst solutions. The present invention also provides a process for the oxidation of palladium(0) to palladium(II) comprising contacting the palladium(0) with an aqueous solution comprising chloride ions and a polyoxoacid or polyoxoanion oxidant comprising vanadium.

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