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    51.
    发明专利
    未知

    公开(公告)号：DK152355B

    公开(公告)日：1988-02-22

    申请号：DK526181

    申请日：1981-11-27

    Applicant: BASF AG

    Inventor： LEUTNER BERND ,  PURUCKER BERNHARD ,  ROTHER EBERHARD ,  JUERGENS GEERD FRIEDRICH ,  WAGNER DIETER

    IPC: C05D9/02

    Abstract: A multi-trace element fertilizer which contains magnesium as a further nutrient and in which the complex-forming trace elements are present in the form of anionic chelates with one or more N-carboxyalkylaminoacids is prepared by a process wherein the N-carboxyalkylaminoacids are reacted, in the presence of water, with the trace elements or trace element compounds in a molar ratio of N-carboxyalkylaminoacids to trace elements or trace element compounds of not less than 0.8:1, at least 20% by weight of the trace element compounds being oxides, hydroxides and/or carbonates. At the same time, or subsequently, the pH of the solution is brought to 3.5-6 by adding a member selected from the group consisting of magnesium oxide, hydroxide and carbonate. A maximum of 50 equivalent percent of the magnesium compound may however be replaced by a member selected from the group consisting of alkali metal oxides, hydroxides and carbonates and ammonia.

    FERROMAGNETIC CHROMIUM DIOXIDE CRYSTALS
    52.
    发明专利
    FERROMAGNETIC CHROMIUM DIOXIDE CRYSTALS 未知

    公开(公告)号：CA1015149A

    公开(公告)日：1977-08-09

    申请号：CA140315

    申请日：1972-04-21

    Applicant: BASF AG

    Inventor： LEUTNER BERND ,  SCHWARZMANN MATTHIAS ,  OHLINGER MANFRED

    IPC: C01G37/02 ,  G11B5/706

    Abstract: The invention relates to ferromagnetic chromium dioxide crystals which are particularly suitable as magnetic pigments for magnetic recording media and whose surface, for the purpose of stabilization, is protected with antimony or arsenic compounds which are sparingly soluble in water, and to a process for the production of chromium dioxide crystals thus stabilized by the precipitation of antimony or arsenic compounds which are sparingly soluble in water.

    FERROMAGNETIC CHROMIUM DIOXIDE CRYSTALS
    53.
    发明专利
    FERROMAGNETIC CHROMIUM DIOXIDE CRYSTALS 未知

    公开(公告)号：CA995889A

    公开(公告)日：1976-08-31

    申请号：CA140316

    申请日：1972-04-21

    Applicant: BASF AG

    Inventor： LEUTNER BERND ,  SCHWARZMANN MATTHIAS ,  OHLINGER MANFRED

    IPC: C01G37/02 ,  G11B5/706

    Abstract: The invention relates to ferromagnetic chromium dioxide crystals which are particularly suitable as magnetic pigments for magnetic recording media and which are stabilized by sparingly water-soluble metal compounds whose cations form sparingly water-soluble metal chromates (such as lead hydroxide, barium phosphate, lead silicate and calcium sulfate) applied to, and particularly precipitated onto, the surface thereof, and to a process for their production.

    MASAS DE MOLDEO DE POLIESTER PROTEGIDAS CONTRA LA LLAMA.
    55.
    发明专利
    MASAS DE MOLDEO DE POLIESTER PROTEGIDAS CONTRA LA LLAMA. 未知

    公开(公告)号：ES2224662T3

    公开(公告)日：2005-03-01

    申请号：ES99923480

    申请日：1999-04-28

    Applicant: BASF AG

    Inventor： KLATT MARTIN ,  LEUTNER BERND ,  NAM MICHAEL ,  FISCH HERBERT

    IPC: C08K3/32 ,  C08K5/00 ,  C08K5/53 ,  C08K5/5313 ,  C08L67/02

    Abstract: Masas de moldeo termoplásticas, que contienen A) de un 5 hasta un 96 % en peso de un poliéster, B) de un 1 hasta un 30 % en peso de un compuesto de nitrógeno, excluyéndose cianurato de melamina, C) de un 0, 1 hasta un 30 % en peso de una sal del ácido fosfínico de la fórmula I o sal del ácido difosfínico de la fórmula II o sus polímeros o sus mezclas teniendo los substituyentes el siguiente significado: R1, R2 hidrógeno, un resto alquilo lineal o ramificado con 1 a 6 átomos de carbono, fenilo, con la condición, que al menos un resto R1 o R2 sea hidrógeno, R3un resto alquileno, arileno, alquilarileno, arilalquilo con 1 a 10 átomos de carbono lineal o ramificado, M un metal alcalinotérreo o alcalino, Al, Zn, Fe, Boro, m un número entero de 1 a 3, n un número entero de 1 y 3, x 1 o 2, D) de un 0 hasta un 5 % en peso de al menos un éster o amida de ácidos carboxílicos alifáticos saturados o insaturados con 10 a 40 átomos de carbono con alcoholes o aminas saturados alifáticos con 2 a 40 átomos de carbono, E) de un 0 hasta un 60 % en peso de otros aditivos, resultando la suma de los porcentajes en peso de los componentes A) hasta E) un 100 %.

    56.
    发明专利
    未知

    公开(公告)号：AT225690T

    公开(公告)日：2002-10-15

    申请号：AT98102811

    申请日：1998-02-18

    Applicant: BASF AG

    Inventor： LEUTNER BERND ,  FRIEDRICH GABRIELE ,  SCHLEGEL REINHOLD

    IPC: B22F9/16 ,  B22F1/00 ,  B22F9/28 ,  B22F9/30 ,  C22C33/02 ,  C22C38/00

    Abstract: A process for producing finely divided phosphorus-containing iron involves gaseous phase reaction of iron pentacarbonyl with a phosphorus compound, preferably phosphine. Preferably, the reaction is carried out in the presence of ammonia at above 200 degrees C. Also claimed is a finely divided phosphorus-containing iron which consists of spherical particles with 1-10 mu mean particle diameter or of filament aggregates of spheres with 0.2-3 mu diameter. Preferably, the iron contains 0.1-50 wt.% P, less than 1 wt.% C, less than 1 wt.% N, less than 0.5 wt.% H and less than 0.1 wt.% total of other impurity elements and is produced by the above process. Further claimed is apparatus for carrying out the above process, including a heated decomposition tube, devices for producing two different temperature zones, for evaporating liquid iron pentacarbonyl and for gas dosing and mixing, and a separator for finely divided phosphorus-containing iron.

    METHOD FOR PRODUCING HIGHLY PURE LITHIUM SALTS
    59.
    发明专利
    METHOD FOR PRODUCING HIGHLY PURE LITHIUM SALTS 未知

    公开(公告)号：CA2322544A1

    公开(公告)日：1999-09-10

    申请号：CA2322544

    申请日：1999-03-01

    Applicant: BASF AG

    Inventor： FRIEDRICH HOLGER ,  LEUTNER BERND ,  PFEFFINGER JOACHIM

    IPC: C01B25/30 ,  B01J39/04 ,  C01D15/04 ,  C01D15/08 ,  C01D15/10

    Abstract: The invention relates to a method for producing a highly pure lithium salt using lithium carbonate. Said method comprises the following steps: A: treating a mixture comprising lithium carbonate and water with CO2 to produce an aqueous mixture containing lithium hydrogencarbonate; B: passing the aqueous mixture containing lithium hydrogencarbonate through an ion-exchange module; C: precipitating out the lithium carbonate from the aqueous mixture containing lithium hydrogencarbonate obtained in step B after treatment with the ion-exchange module and D: reprocessing the precipitated lithium carbonate or converting the precipitated lithium carbonate into another highly pure lithium salt.

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