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    47.
    发明专利
    未知

    公开(公告)号：ES2039702T3

    公开(公告)日：1993-10-01

    申请号：ES89100154

    申请日：1989-01-05

    Applicant: ATOCHEM NORTH AMERICA, INC. (A PENNSYLVANIA CORP.)

    Inventor： GARDNER, DAVID MILTON ,  WHEATON, GREGORY ALAN

    IPC: C25B3/23 ,  C25B3/02

    Abstract: A continuous method is provided for preparing alkanesulfonyl halides, particularly chlorides and alkanesulfonic acids in high yields without the formation of undesirable side-products, and without the net production of hydrogen chloride as a by-product. The method involves the continuous electrolysis of an alkanethiol (RSH) or dialkyl disulfide (RSSR min ) in an aqueous hydrochloric acid-containing solution, continuously removing the electrolyzed product mixture from the electrolysis zone, and recovering the alkanesulfonyl chloride (RSO2Cl) or alkanesulfonic acid (RSO3H) product from the mixture. The alkyl groups in the dialkyl disulfide (R and R min ) may be straight or branched chain, substituted or unsubstituted, have 1 to 20 carbon atoms, preferably 1 to 12 carbon atoms, and may be different, but are preferably the same. The aqueous hydrochloric acid-containing medium and any unreacted sulphur compounds may be recycled through the electrolysis chamber.

    ORGANIC SULFIDE ANTIOXIDANTS
    48.
    发明专利
    ORGANIC SULFIDE ANTIOXIDANTS 未知

    公开(公告)号：AU639263B2

    公开(公告)日：1993-07-22

    申请号：AU6384390

    申请日：1990-10-05

    Applicant: ATOCHEM NORTH AMERICA, INC.

    Inventor： JOSEPH MICHAEL BOHEN ,  JAMES LEO REILLY

    IPC: C07C323/12 ,  C07D307/20 ,  C07H15/04 ,  C07H15/14 ,  C07H15/18 ,  C08K5/36 ,  C08K5/372 ,  C08L23/00 ,  C09K15/12

    Abstract: Organic sulfide antioxidants useful for stabilizing polyolefins against oxidative and thermal degradation during processing and use represented by Formula I: wherein n is an integer of 2 to 15; R is an alkyl group of 2 to 30 carbons, or a cycloalkyl group of 5 to 20 carbons, R is a substituted or unsubstituted alkyl group of 2 to 30 carbons, a substituted or unsubstituted cycloalkyl group of 5 to 20 carbons, a substituted or unsubstituted alkyl group of 2 to 30 carbons where any of up to 6 carbon atoms are replaced with an O or S heteroatom, a substituted or unsubstituted cycloalkyl group of 5 to 20 carbons where any of up to 6 carbon atoms are replaced with an O or S heteroatom, with the proviso that the heteroatoms must be separated from each other and from the portion of the compound to which the R group is bonded by at least one carbon atom, the substituents for R being -OH, -SR or -OR , wherein R is an alkyl group of 1 to 30 carbons or a cycloalkyl group of 5 to 20 carbons; R and R are independently H or an alkyl group of 1 to 4 carbons; and R is an alkyl group of 1 to 24 carbons or a cycloalkyl group of 5 to 20 carbons.

    50.
    发明专利
    未知

    公开(公告)号：ES2032873T3

    公开(公告)日：1993-03-01

    申请号：ES88100325

    申请日：1988-01-12

    Applicant: ATOCHEM NORTH AMERICA, INC. (A PENNSYLVANIA CORP.)

    Inventor： TUSZYNSKI, WILLIAM JOSEPH

    IPC: B01J23/28 ,  B01J23/88 ,  B01J27/04 ,  B01J27/051 ,  B01J37/20 ,  C10G45/08 ,  C10G45/12

    Abstract: A presulfiding agent which is a blend of an alkyl sulfide of the formula R1SxR2 where R1 and R2 are alkyl groups having from 1 to 12 carbon atoms and x is 1 or 2 and an alkyl polysulfide of the formula R3SyR4 wherein R3 and R4 are alkyl groups having from 1 to 20 carbon atoms and y is 2 to 8 provided that the total carbon atoms in R3 and R4 do not exceed 30 and y is greater than x, is disclosed herein along with a process employing said agent for sulfiding an oxidic hydrotreating catalyst to form a sulfided hydrotreating agent and a process of hydrotreating a petroleum fraction with such sulfided hydrotreating catalyst.

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