中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

21 records (took 0.022 seconds)

    IRON POWDER CONTAINING SILICON
    1.
    发明专利
    IRON POWDER CONTAINING SILICON 失效

    公开(公告)号：JPH10317023A

    公开(公告)日：1998-12-02

    申请号：JP11093298

    申请日：1998-04-21

    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: PROBLEM TO BE SOLVED: To efficiently produce silicon-contg. iron powder contg. impurities in a smaller amt. at a low cost by using silanes or nohalogen contg. org. silanes exclusive of tolyethylsilane and tetraethoxysilane as the volatile silicon compd. to be used for a raw material. SOLUTION: The silane suitable as the raw material is silanes like monosilanes which are gas and volatile at room temp. Pyrolysis of pentacarbonyl iron and the volatile silicon compd. is preferably executed under the absolute pressure of 1 to 2 bar at 200 to 600 deg.C. If the pyrolysis is executed in the presence of ammonia, the decomposition of the pentacarbonyl iron to iron and carbon monoxide is accelerated. The resulted silicon-contg. iron powder is spherical particles of 0.005 to 10 μm in average diameter which are obtd. in a finely dispersed state. This silicon-contg. iron powder is made into the powder substantially not contg. carbon, oxygen and nitrogen by subjecting the powder to heating reduction in hydrogen gaseous flow.

    VAPOR-PHASE DEHYDROGENATION OF 1,4-BUTANEDIOL INTO GAMMA-BUTYROLACTONE
    2.
    发明专利
    VAPOR-PHASE DEHYDROGENATION OF 1,4-BUTANEDIOL INTO GAMMA-BUTYROLACTONE 失效

    公开(公告)号：JPH10152485A

    公开(公告)日：1998-06-09

    申请号：JP23922397

    申请日：1997-09-04

    Applicant: BASF AG

    Inventor： MERCKER HANS JOCHEN DR ,  PAPE FRANK-FRIEDRICH DR ,  SIMON JOACHIM DR ,  HENNE ANDREAS DR ,  HESSE MICHAEL DR ,  KOEHLER ULRICH DR ,  DOSTALEK ROMAN DR ,  FREIRE ERDBRUEGGER CRISTINA DR ,  KRATZ DETLEF DR

    IPC: C07D307/33 ,  B01J23/72 ,  B01J23/78 ,  C07B61/00 ,  C07D307/32 ,  C07D315/00

    Abstract: PROBLEM TO BE SOLVED: To provide a method which effects the subject reaction in the vapor phase advantageously from industrial, economical and environmental aspects in the presence of a catalyst composed of copper and Na2 O supported by a carrier composed of SiO2 and CaO. SOLUTION: This method effects the subject reaction in the presence of free hydrogen by passing 1,4-butanediol over an immobilized phase of catalyst composed of 4 to 40wt.%, preferably 4 to 32wt.%, of copper and 0 to 5wt.%, preferably 0 to 2wt.%, of Na2 O, each percentage being based on the total quantity of the catalyst, supported by a carrier composed of 80 to 100wt.%, preferably 90 to 100wt.%, of SiO2 and 0 to 20wt.%, preferably 0 to 10wt.%, of CaO, where the copper grains having an average diameter of 10 to 100nm are dispersed at a rate of 20 to 50% so as to have a surface area of 10 to 50m /g over the carrier, under the conditions of temperature: 150 to 300 deg.C, preferably 190 to 230 deg.C, absolute pressure: 1 to 40 bar, preferably about 1 bar, and hourly space velocity of 1,4-butanediol: 0.2 to 20kg, preferably 0.5 to 7.5kg, per kg copper, with the carrier gas containing free hydrogen being reused as the recycle gas.

    PRODUCTION OF 2,2'-MORPHOLINO DIETHYL ETHER
    3.
    发明专利
    PRODUCTION OF 2,2'-MORPHOLINO DIETHYL ETHER 失效

    公开(公告)号：JP2000212175A

    公开(公告)日：2000-08-02

    申请号：JP37063599

    申请日：1999-12-27

    Applicant: BASF AG

    Inventor： RIECHERS HARTMUT ,  SIMON JOACHIM DR ,  HENNE ANDREAS ,  HOEHN ARTHUR

    IPC: C07D295/08 ,  B01J23/72 ,  C07D295/088

    Abstract: PROBLEM TO BE SOLVED: To obtain 2,2'-morpholino diethyl ether by using a specific catalyst before reducing diethylene glycol and ammonia with hydrogen. SOLUTION: This compound is obtained by incorporating a catalyst whose catalytic component contains aluminum oxide, zirconium dioxide, titanium dioxide, and/or silicon dioxide at 20-85 wt.%, an oxygen-containing compound of Cu at 1-70 wt.% as calculated as CuO, oxygen-containing compound(s) of Mg, Cr, Zn, Ba, and/or Ca at 0-50 wt.% as calculated as MgO, Cr2O3, ZnO, BaO, and/or CaO, respectively, and an oxygen-containing compound of Ni as calculated as NiO at less than 20 wt.% per the oxygen-containing compound of Cu before reducing diethylene glycol and ammonia with hydrogen in the presence of the obtained hydrogenation catalyst at an elevated temperature and pressure.

    PRODUCTION OF N-SUBSTITUTED CYCLIC AMINE
    4.
    发明专利
    PRODUCTION OF N-SUBSTITUTED CYCLIC AMINE 失效

    公开(公告)号：JPH1072454A

    公开(公告)日：1998-03-17

    申请号：JP15828297

    申请日：1997-06-16

    Applicant: BASF AG

    Inventor： SIMON JOACHIM DR ,  DOSTALEK ROMAN DR ,  LINGK HEINZ ,  BECKER RAINER DR ,  HENNE ANDREAS DR ,  ROLF REEPUKYUUHIYAA ,  FREIRE ERDBRUEGGER CRISTINA DR ,  HESSE MICHAEL DR ,  KRATZ DETLEF DR

    IPC: C07D295/02 ,  B01J23/72 ,  B01J37/02 ,  C07B61/00 ,  C07D295/03

    Abstract: PROBLEM TO BE SOLVED: To enable to industrially simply and profitably obtain the subject compound from a primary amine and a diol by using a specific copper- containing hydrogenation/dehydrogenation catalyst. SOLUTION: This method for producing an N-substituted cyclic amine of formula I comprises reacting (C) a compound of the formula: R -NH2 [R is an (alkoxy)alkyl, an aryl, etc.,] with (D) a compound of the formula: HO-A-OH A is an alkylene (substituted by a group of the formula: R (R is R ), a group of the formula: (CH2 )n -[O-(CH )m ]r , [(m), (n) are each 2-8; (r) is 1-3]} in the presence of a coppercontaining catalyst. The copper-containing catalyst is obtained by impregnating an inactive carrier (e.g. silicon dioxide, a silicate or zeolite) with (A) hydrogen and (B) the aqueous ammine complex solution of an easily pyrolytic copper compound (e.g. copper carbonate, copper oxalate or copper formate)(preferably an ammoniacal copper carbonate solution), drying the impregnated carrier, and subsequently calcining the dried product, and contains the copper in an amount of 5-50wt.% converted into CuO on the basis of the whole amount of the calcined catalyst.

    Process for the continuous preparation of calcium cyanamide
    9.
    发明专利
    Process for the continuous preparation of calcium cyanamide 未知

    公开(公告)号：DE4420750A1

    公开(公告)日：1994-12-22

    申请号：DE4420750

    申请日：1994-06-15

    Applicant: BASF AG

    Inventor： KALCK ULRICH DR ,  LEUTNER BERND DR ,  PFEFFINGER JOACHIM ,  SIMON JOACHIM DR ,  SCHWEINZER JUERGEN DR

    IPC: C01C3/18

    Abstract: Continous preparation of calcium cyanamide from urea and calcium oxide, calcium hydroxide or calcium carbonate by stepwise reaction at a temperature increased in steps, by a) carrying out the reaction by means of a travelling grate furnace (kiln) at temperatures of from 160 to 800 DEG C or b) reacting urea and the calcium compound at from 130 to 350 DEG C in a reactor having a horizontal axis and containing internal fittings for conveying and comminuting and also for scraping off the reaction mixture from the reactor wall and/or from the central shaft, and further reacting the mixture of calcium cyanurate obtained, which is here formed as a free-flowing powder, in a manner known per se at from 650 to 750 DEG C in a fluidised-bed reactor or in a rotary kiln to give calcium cynamide.

Patent Agency Ranking