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    11.
    发明专利
    未知

    公开(公告)号：FR2552426B1

    公开(公告)日：1986-11-28

    申请号：FR8414519

    申请日：1984-09-21

    Applicant: BASF AG

    Inventor： WICKENHAEUSER GERHARD ,  HEIDA BERND ,  GRAF FRITZ ,  HUPFER LEOPOLD

    IPC: C07C59/153 ,  C07C51/00 ,  C07C51/48 ,  C07C67/00

    Abstract: Aqueous glyoxylic acid solutions, essentially free of other acids, are recovered from aqueous solutions which still contain other acids, by a method in which the aqueous solution is mixed with an organic nitrogen compound at as high as 50 DEG C., the phases are separated, and the glyoxylic acid is extracted from the organic phase with water, at a higher temperature.

    12.
    发明专利
    未知

    公开(公告)号：FR2552426A1

    公开(公告)日：1985-03-29

    申请号：FR8414519

    申请日：1984-09-21

    Applicant: BASF AG

    Inventor： WICKENHAEUSER GERHARD ,  HEIDA BERND ,  GRAF FRITZ ,  HUPFER LEOPOLD

    IPC: C07C59/153 ,  C07C51/00 ,  C07C51/48 ,  C07C67/00

    Abstract: Aqueous glyoxylic acid solutions, essentially free of other acids, are recovered from aqueous solutions which still contain other acids, by a method in which the aqueous solution is mixed with an organic nitrogen compound at as high as 50 DEG C., the phases are separated, and the glyoxylic acid is extracted from the organic phase with water, at a higher temperature.

    Catalytic cracking of gaseous and/or vaporisable hydrocarbons containing two to thirty carbon atoms
    14.
    发明专利
    Catalytic cracking of gaseous and/or vaporisable hydrocarbons containing two to thirty carbon atoms 未知

    公开(公告)号：GB1118939A

    公开(公告)日：1968-07-03

    申请号：GB4672565

    申请日：1965-11-04

    Applicant: BASF AG

    Inventor： HUPFER LEOPOLD ,  NONNENMACHER HELMUT ,  RALL WOLFGANG ,  TRIEBSKORN BRUNO

    IPC: C01B3/40 ,  C10G11/02

    Abstract: A process for cracking gaseous and liquid vaporizable hydrocarbons having 2 to 30 C atoms per molecule employing steam at temperatures above 550 DEG C. utilizes a catalyst comprising cobalt, a carrier material, and an alkali metal compound in an amount at least 0.5% and not more than 10% b.w., calculated as oxide. The carrier may be MgO, or MgO mixed with Al2O3, and ZrO2 may be added. An hydraulic binder, e.g. 15 to 30% b.w., may be included, e.g. calcium aluminate. The cobalt comprises 1 to 40% b.w., preferably 3 to 20% b.w. of the catalyst, which may be calcined. Reaction temperatures up to 950 DEG C. are mentioned, and the pressure may be superatmospheric. The alkali metal is preferably potassium and may be the oxide, hydroxide, nitrate, carbonate, phosphate or sulphate. The catalyst may comprise a preliminary layer only, a catalyst comprising non-alkalized Co or Ni being located at the reactor outlet. Suitable feedstocks are gasolines (B.R. 30 DEG to 200 DEG C.), gas oils of B.R. 165 DEG to 360 DEG C., and gaseous hydrocarbons, which may contain up to 90 vol. per cent unsaturates. Three specific examples are described, in which H2-, CO-containing gas is made.ALSO:Catalysts for cracking hydrocarbons, see Division C5, consisting of cobalt, magnesium oxide (with or without alumina) as carrier, and an alkali metal compound, are made as follows:-magnesium oxide is introduced into a cobalt nitrate solution, and the precipitated cobalt hydroxide is dried and roasted at 650 DEG to 700 DEG C; calcium aluminate cement and water are added, and the mixture shaped; finally, the shaped material is impregnated with potassium carbonate solution and the catalyst calcined at 600 DEG C. In a modified process, g -alumina is added to the roasting material prepared as described above, and this mixture is shaped and then calcined at 1400 DEG to 1450 DEG C prior to impregnation with potassium carbonate solution. In another example, cobalt oxide and magnesium oxide are calcined at 1300 DEG C and then impregnated with potassium carbonate solution. All the catalysts are reduced in reaction tubes prior to being used for cracking.

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