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    53.
    发明专利
    未知

    公开(公告)号：ES2190000T3

    公开(公告)日：2003-07-16

    申请号：ES98107122

    申请日：1998-04-20

    Applicant: BASF AG

    Inventor： SIMON JOACHIM DR ,  SCHLEGEL REINHOLD ,  LEUTNER BERND DR

    IPC: B22F9/16 ,  B22F9/12 ,  B22F9/30 ,  C22B5/20 ,  H01F1/20 ,  H01F1/24

    Abstract: Production of Si-containing Fe powder comprises thermally decomposing a gas mixture containing Fe-pentacarbonyl and a volatile Si-compound. The volatile Si-compound is a silane or organosilane, except triethylsilane and tetraethoxysilane. Also claimed is an apparatus for carrying out the process comprising: (a) a heated decomposition pipe; (b) a device for adjusting two different temperature zones; (c) a device for vaporising liquid Fe-pentacarbonyl; (d) a device for dosing and mixing gases; and (e) a separator for Si-containing Fe powder.

    54.
    发明专利
    未知

    公开(公告)号：ES2157619T3

    公开(公告)日：2001-08-16

    申请号：ES98102700

    申请日：1998-02-17

    Applicant: BASF AG

    Inventor： LEUTNER BERND DR ,  FRIEDRICH GABRIELE DR ,  SCHLEGEL REINHOLD

    IPC: C01B25/08 ,  B22F1/00 ,  B22F9/04 ,  B22F9/30 ,  C22C1/04 ,  C22C33/02 ,  C22C38/00

    Abstract: A process for producing phosphorus-containing iron powder involves heating a mixture of finely divided carbonyl iron and elemental phosphorus and pulverising the product. Preferably, a mixture of 70-99 wt.% finely divided carbonyl iron powder and 1-30 wt.% red phosphorus is heated at above 300 degrees C in an inert gas atmosphere. Also claimed is a phosphorus-containing iron powder of less than 10 mu mean particle diameter, containing 0.1-80 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 except oxygen.

    55.
    发明专利
    未知

    公开(公告)号：AT201053T

    公开(公告)日：2001-05-15

    申请号：AT98102700

    申请日：1998-02-17

    Applicant: BASF AG

    Inventor： LEUTNER BERND DR ,  FRIEDRICH GABRIELE DR ,  SCHLEGEL REINHOLD

    IPC: C01B25/08 ,  B22F1/00 ,  B22F9/04 ,  B22F9/30 ,  C22C1/04 ,  C22C33/02 ,  C22C38/00

    Abstract: A process for producing phosphorus-containing iron powder involves heating a mixture of finely divided carbonyl iron and elemental phosphorus and pulverising the product. Preferably, a mixture of 70-99 wt.% finely divided carbonyl iron powder and 1-30 wt.% red phosphorus is heated at above 300 degrees C in an inert gas atmosphere. Also claimed is a phosphorus-containing iron powder of less than 10 mu mean particle diameter, containing 0.1-80 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 except oxygen.

    56.
    发明专利
    未知

    公开(公告)号：ES2135133T3

    公开(公告)日：1999-10-16

    申请号：ES96105881

    申请日：1996-04-15

    Applicant: BASF AG

    Inventor： FRIEDRICH HOLGER DR ,  KELLER HARALD DR ,  LEUTNER BERND DR

    IPC: C07F7/12 ,  C07F7/18

    Abstract: Silanes (I) of formula (A) are new: n = 1-5; at least one R gp. = a hydrolysable halogen, alkoxy, sec. amino, -O-C(=O)-H or oxycarbonylalkyl gp. and the rest = (cyclo)alkyl, aryl or a hydrolysable gp.

    57.
    发明专利
    未知

    公开(公告)号：DE59600938D1

    公开(公告)日：1999-01-21

    申请号：DE59600938

    申请日：1996-05-23

    Applicant: BASF AG

    Inventor： KROENER RUDI DR ,  LEUTNER BERND DR ,  SCHNEIDER HANS-MICHAEL DR ,  FRIEDRICH HOLGER DR ,  HECKY KURT ,  SCHLAEFER DIETER DR ,  STEINER WOLFGANG DR

    IPC: C25B13/00 ,  C25B15/00

    Abstract: Regenerating plastic diaphragms comprises mixing a soln. of mineral acid (I) with a corrosion inhibitor (II) and passing the mixt. through the diaphragm for 0.1-84 (pref. 1-72, esp. pref. 2-24) hrs. at 0-100 (pref. 40-80, esp. pref. 50-70) degrees C. Also claimed are plastic diaphragms obtd. by this process. (I) consists at least partly, pref. entirely, of HCl in a concn. of 0.3-20 (pref. 2-10) wt%, pref. contg. NaCl in a concn. up to the satn. pt., pref. up to 250 g/l. Pref. soln. (I) also contains 500-5000 ppm Cu and/or Fe cpds., esp. Cu(II) and/or Fe(III) salts. The mixt. contains 0.005-5 (pref. 0.05-0.5) wt% (II). Component (II) contains alkynol(s), esp. an alkyne-diol, pref. mixed with 1-25 wt% amine, esp. hexamethylenetetramine (HMTA), ethylhexylamine or diethylhexylamine, and/or 0.1-3 wt% surfactant, esp. a quat. ammonium salt.

    58.
    发明专利
    未知

    公开(公告)号：DE19519921A1

    公开(公告)日：1996-12-05

    申请号：DE19519921

    申请日：1995-05-31

    Applicant: BASF AG

    Inventor： KROENER RUDI DR ,  LEUTNER BERND DR ,  SCHNEIDER HANS-MICHAEL DR ,  FRIEDRICH HOLGER DR ,  HECKY KURT ,  SCHLAEFER DIETER DR ,  STEINER WOLFGANG DR

    IPC: C25B13/00 ,  C25B15/00

    Abstract: Regenerating plastic diaphragms comprises mixing a soln. of mineral acid (I) with a corrosion inhibitor (II) and passing the mixt. through the diaphragm for 0.1-84 (pref. 1-72, esp. pref. 2-24) hrs. at 0-100 (pref. 40-80, esp. pref. 50-70) degrees C. Also claimed are plastic diaphragms obtd. by this process. (I) consists at least partly, pref. entirely, of HCl in a concn. of 0.3-20 (pref. 2-10) wt%, pref. contg. NaCl in a concn. up to the satn. pt., pref. up to 250 g/l. Pref. soln. (I) also contains 500-5000 ppm Cu and/or Fe cpds., esp. Cu(II) and/or Fe(III) salts. The mixt. contains 0.005-5 (pref. 0.05-0.5) wt% (II). Component (II) contains alkynol(s), esp. an alkyne-diol, pref. mixed with 1-25 wt% amine, esp. hexamethylenetetramine (HMTA), ethylhexylamine or diethylhexylamine, and/or 0.1-3 wt% surfactant, esp. a quat. ammonium salt.

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