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    ISOTOPE SEPARATION PROCESS
    2.
    发明专利
    ISOTOPE SEPARATION PROCESS 未知

    公开(公告)号：CA1137442A

    公开(公告)日：1982-12-14

    申请号：CA340714

    申请日：1979-11-27

    Applicant: EXXON RESEARCH ENGINEERING CO

    Inventor： MAAS EDWARD T JR ,  KALDOR ANDREW ,  COX DONALD M ,  KRAMER GEORGE M ,  HALL RICHARD B ,  HORSLEY JOHN A

    IPC: B01D59/34 ,  B01D59/38

    Abstract: (U.S. 37,877) A method for the separation of isotopes is disclosed including providing a vapor of a compound of the element whose isotopes are to be separated, the compound having an isotopically shifted but overlapping infrared absorption spectrum associated with the isotopes of that element within a predetermined temperature range, irradiating the vapor with a predetermined fluence of infrared radiation which is preferentially absorbed by a molecular vibration of the molecules of the compound containing a predetermined isotope of the element, thereby providing excited molecules enriched in the predetermined isotope, while maintaining the vapor at a temperature within the predetermined temperature range which, at thermal equilibrium, provides sufficient molecules requiring more than a single photon to promote dissociation so that upon dissociation the isotopic selectivity is at least ten percent above the maximum selectivity which can be achieved with an ensemble of molecules, each of which can dissociate by absorbing a single photon. In a preferred embodiment, the isotopes of uranium are separated utilizing uranyl compounds having the formula UO2A2.L where A is a monovalent anion and L is a neutral ligand having a basicity towards the uranyl ion equal to or stronger than that of tetrahydrofuran (THF).

    ISOTOPE SEPARATION PROCESS
    3.
    发明专利
    ISOTOPE SEPARATION PROCESS 未知

    公开(公告)号：CA1140493A

    公开(公告)日：1983-02-01

    申请号：CA340347

    申请日：1979-11-21

    Applicant: EXXON RESEARCH ENGINEERING CO

    Inventor： MAAS EDWARD T ,  COX DONALD M

    IPC: B01D59/34

    Abstract: U.S. 14,107 This invention relates to a process for the separation of isotopes of an element, preferably uranium, utilizing certain uranyl compounds having the formula (U02AA')n wherein A and A' are monovalent anions and n is a number from 2 to 40 With reference to the drawing, which schematically represents an apparatus in which the process may be conducted, the uranyl compound is vaporized in a heated oven (1) to produce a molecular beam (8) which is irradiated by a CW CO2 laser beam (5). Molecules containing one of the isotopes absorb radiation from the laser beam (5) preferentially over molecules of the other isotope and undergo unimolecular dissociation. The dissociation fragments to which sufficient random translational energy is imparted leave the molecular beam (8) and are collected by cooled cylindrical collector (11).

    NOVEL SALTS OF FULLERENES
    4.
    发明专利
    NOVEL SALTS OF FULLERENES 未知

    公开(公告)号：CA2124191A1

    公开(公告)日：1993-06-10

    申请号：CA2124191

    申请日：1992-11-23

    Applicant: EXXON RESEARCH ENGINEERING CO

    Inventor： GORUN SERGIU M ,  GREANEY MARK A ,  COX DONALD M ,  CHIANELLI RUSSELL R ,  STIEFEL EDWARD I

    IPC: C01B31/02 ,  C25B1/00 ,  C25B1/14 ,  C25B3/00 ,  H01M4/58 ,  H01M4/583 ,  H01M4/587 ,  C01B31/00

    Abstract: 2124191 9311067 PCTABS00022 The present invention relates to new compositions of matter having the formula AnCx, wherein A is a monovalent cation and Cx is a fullerene anion, preferably wherein x is equal to 60 and 70. The present invention also relates to a process for preparing the composition by applying an electrical potential to a non-aqueous solution of a fullerene and a salt containing a monovalent cation. The present invention also relates to a method for electrochemically generating fulleride salts as a solution in other hydrocarbons. The present invention also relates to a method for electrochemically preparing solid fulleride salts. The compositions may be used as electrode material in reversible electrochemical cells, superconductors, spin labels, magnetic thermometers, organic, and polymer precursors.

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