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    61.
    发明专利
    未知

    公开(公告)号：ES2121120T3

    公开(公告)日：1998-11-16

    申请号：ES94108425

    申请日：1994-06-01

    Applicant: BASF AG

    Inventor： SOPHER DAVID DR ,  GIESELER ANDREAS DR ,  HIBST HARTMUT DR ,  HARTH KLAUS DR ,  JAEGER PETER DR

    IPC: C25B3/29 ,  C25B11/04 ,  C25B3/10

    Abstract: Electrodes prodn. comprises applying an electroconductive coating on an electroconductive core. Also claimed is the use of the electrode in the reductive coupling of olefins, the electrode esp. being used as cathode in the electro-hydrodimerisation of olefins of formula (I). R R C=CR X (I) In (I), R -R are H or 1-4C alkyl and X is -CN, -CONR R or -COOR .

    63.
    发明专利
    未知

    公开(公告)号：DE19528646A1

    公开(公告)日：1997-02-06

    申请号：DE19528646

    申请日：1995-08-04

    Applicant: BASF AG

    Inventor： HIBST HARTMUT DR ,  TENTEN ANDREAS DR ,  MAROSI LASZLO DR

    IPC: B01J23/88 ,  B01J23/00 ,  B01J23/887 ,  B01J23/888 ,  B01J35/00 ,  C01G31/00 ,  C01G39/00 ,  C07B61/00 ,  C07C51/235 ,  C07C51/25 ,  C07C57/05 ,  C07C57/055 ,  C01G1/02 ,  C01G53/00 ,  C01G41/00

    Abstract: Multi-metal oxide compsn. of general formula ÄAÜpÄBÜq (I) is new (where, A = Mo12Va(X b)(X c)(X d)X e)(X f )(X g)Ox, B = X 12CuhHiOy (promoter phase); X = W, Nb, Ta, Cr and/or Ce; X = Cu, Ni, Co, Fe, M n and/or Zn; X = Sb and/or Bi; X = Li, Na, K, Rb, Cs and/or H; X = Mg, Ca, Sr and/or Br; X = Si, Al, Ti and/or Zr; X = Mo, W, V, Nb and/or Ta; a = 1-8; b = 0.2-5; c = 0-23; d = 0-50; e = 0-2; f = 0-5; g = 0-50; h = 4-30; i = 0-20; x, y = values determining the valency and frequency of elements different from oxygen in the compsn.; and p, q = values other than zero, whose ratio p/q = 160-1:1. The proportions of (A)p and (B)q are in the form of chemical compsns. differing from their local environment. A and B are distributed relative to each other such as a mixt. of finely divided A and finely divided B, with the proviso that B contains crystals B* of oxometallates of formula CuMoaWbVcNbdTeOy (II) (where, a/(A+B+C+D+E)=0.7-1.3; (B+C+D+E)/A = 0.01-1; and Y = a value determined by the valency and frequency of elements in (II) different from oxygen) of a new structure type (HT-Cu molybdate) defined by the X-ray diffraction pattern: d(A)=6.79+/-0.3; 3.56+/-0.3; 3.54+/-0.3, 3.40+/-0.3; 3.04+/-0.3, 2.96+/-0.3; 2.67+/-0.2; 2.66+/-0.2; 2.56+/-0.2, 2.36+/-0.2; 2.35+/-0.2; 2.27+/-0.2; 2.00+/-0.2;1.87+/-0.3; 1.70+/-0.2; 1.64+/-0.2; 1.59+/-0.2; 1.57+/-0.2; 1.57+/-0.2; 1.55+/-0.2; 1.51+/-0.2; 1.44+/-0.2. Also claimed are: (i) the oxometallates of formula (II); (ii) mixt. of oxometallates (II); (iii) prodn. of the multi-metal oxide compsn..

    Magnetic materials comprising spin-coupled hard and soft magnetic phases
    67.
    发明专利
    Magnetic materials comprising spin-coupled hard and soft magnetic phases 未知

    公开(公告)号：DE4141763A1

    公开(公告)日：1993-06-24

    申请号：DE4141763

    申请日：1991-12-18

    Applicant: BASF AG

    Inventor： RICHTER HANS JUERGEN DR ,  SCHWAB EKKEHARD DR ,  JAKUSCH HELMUT DR ,  HIBST HARTMUT DR ,  GRAU WERNER DR ,  KNELLER ECKART PROF DR ,  HAWIG REINHARD

    IPC: G11B5/706 ,  H01F1/03 ,  H01F1/057 ,  H01Q17/00 ,  H02K1/02

    Abstract: A magnetisable material consists of at least two ferro- and/or ferrimagnetic phases which are magnetically coupled to each other by magnetic exchange coupling. At least one of the phases is a hard magnetic phase and at least one of the phases is a soft magnetic phase. The vol. percentage of the soft magnetic phase is at least 30%. At least 65% of the original saturation remanence is obtd. again after prior magnetic saturation in a direction corresp. to the application of an opposite magnetic field which is the same as the coercive field strength of the magnetic material, and after removing the field. The saturation remanence is at least 50% of the saturation magnetisation. The material is mfd. by spraying a melt of rare earth metals, Fe, B, a transition metal and Si on to a rotating metal roll in an inert atmos., and annealing the flakes produced at 670-780 deg.C to give the desired ratio of hard- to soft magnetic phases. Pref. an alloy of compsn. RExFeyBzSiuTv is used as the magnetic material, where RE is one or more rare earth metals and/or Y, Zr and Hf, and T is one or more transition metal with a body-centred cubic structure, and where x is not greater than 10 atom %, y is not greater than 85 atom %, z is not greater than 25 atom %, u is not greater than 10 atom %, and v is not greater than 10 atom %. Up to 10 atom % Fe may be replaced by Ni and/or Co. The soft magnetic phases comprises alpha-Fe and Fe3B, and the hard magnetic phase comprises Nd2Fe14B.

    PROCESS FOR THE PREPARATION OF FERRITES FROM IRON (II) SULFATE
    70.
    发明专利
    PROCESS FOR THE PREPARATION OF FERRITES FROM IRON (II) SULFATE 未知

    公开(公告)号：DE3369309D1

    公开(公告)日：1987-02-26

    申请号：DE3369309

    申请日：1983-04-05

    Applicant: BASF AG

    Inventor： HIBST HARTMUT DR

    IPC: C01G49/00 ,  C01G51/00 ,  C04B35/26 ,  H01F1/11

    Abstract: M-Type ferrites of the formula AFe12O19, Me2Y-type ferrites of the formula A2Me2Fe12O22 or spinel-type ferrites of the formula MeFe2O4, where A is Ba, Sr, Pb and/or Ca and Me is Zn, Mn, Co, Cu, Fe(II) and/or 1/2(Li(I)+Fe(III)), are prepared by a process wherein iron(II) sulfate hydrate is dehydrated and oxidized and then mixed with sodium carbonate and/or potassium carbonate and salts and/or oxides of other A and/or Me cations required in addition to Fe(III) for ferrite formation, the mixture is heated at from 700 DEG to 1,200 DEG C., and the resulting ferrite is isolated by leaching with water.

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