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公开(公告)号:DE59702364D1
公开(公告)日:2000-10-26
申请号:DE59702364
申请日:1997-02-19
Applicant: DEGUSSA
Inventor: LANSINK-ROTGERINK DR , RIEDEMANN HEIKE , TACKE DR , KRAUSE HELMFRIED , FREUND DR , BURMEISTER DR , PANSTER DR
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公开(公告)号:DE59509283D1
公开(公告)日:2001-06-28
申请号:DE59509283
申请日:1995-11-08
Applicant: DMC2 DEGUSSA METALS CATALYSTS
Inventor: FREUND DR , PANSTER DR
IPC: B01J23/38 , B01J23/40 , B01J23/42 , B01J35/00 , B01J35/02 , B01J35/10 , B01J37/00 , B01J37/02 , C07F15/00 , H01M4/90 , H01M4/92
Abstract: A shell catalyst (I) contains (A) one or more metals of Gp. VIII and/or IB on (B) a powder or formed support, these metals being in finely divided form within a shell ≤ 1200 (pref. not more than 100) nm thick, with crystallite sizes of ≤ 10 (pref.
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公开(公告)号:DE50200179D1
公开(公告)日:2004-02-05
申请号:DE50200179
申请日:2002-01-11
Applicant: DEGUSSA
Inventor: BATZ-SOHN DR , PANSTER DR , MICHEL RUDOLF , ALBERT DR , VRYENS DR
Abstract: Production of 3-functionalized propyl silanes (I) by reacting allylic compounds (II) with silanes (III) at 0-200 degrees C and 0.8-25 bar in the presence of a platinum catalyst comprises using a (III):(II) molar ratio of 3-100. Production of 3-functionalized propyl silanes (I) by reacting allylic compounds of formula (II) with silanes of formula (III) at 0-200 degrees C and 0.8-25 bar in the presence of a platinum catalyst comprises using a (III):(II) molar ratio of 3-100:1 H2C=CH-CH2X (II) R R R SiH (III) X = Cl, Br, I, F, CN, SCN, SH, SR, OH, NRR or OR; R, R = 1-6C alkyl or 3-7C alkyl (sic); and R -R = H, halogen, 1-6C alkyl, 1-6C haloalkyl, 3-6C allyl (sic), 1-4C alkoxy, phenyl, aryl or aralkyl.
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公开(公告)号:DE59508645D1
公开(公告)日:2000-09-21
申请号:DE59508645
申请日:1995-11-04
Applicant: DEGUSSA
Inventor: LANSINK-ROTGERINK DR , TACKE DR , BRAND DR , PANSTER DR
Abstract: A catalyst for dehydrogenation of 6-15C paraffins contains (a) an inorganic support, (b) 0.01-5% of a Pt gp. metal, (c) 0.01-5% of Sn, Ge and/or Pb as promoter, and (d) 0.01-20% of an alkaline earth metal as modifier.
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公开(公告)号:DE59710608D1
公开(公告)日:2003-09-25
申请号:DE59710608
申请日:1997-11-14
Applicant: DEGUSSA
Inventor: MUENZENBERG DR , PANSTER DR , PRINZ MATTHIAS
Abstract: A method for the preparation of bis(silyl-organyl)-poly-sulphane of formula (I) comprises reacting halo(alkyl)alkoxysilane of formula (II) with a polysulphide of formula (III): (R R R SiR )2Sx (I) R R R SiR X (II) M2Sx (III) R -R = 1-8C alkyl, 1-8C alkoxy or aryl (preferably phenyl, toluyl or benzyl); R = 1-8 (1-4)C alkylidene or (CH2)n-C6H4-(CH2)n-; n = 1-4; x = greater than 1 (2-8) for (I), or 2-8 for polysulphide; X = halogen, eg. Cl, Br or I; and M = alkali metal cation or an alkaline earth metal or zinc cation equivalent, with the provision that at R -R
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公开(公告)号:DE50002574D1
公开(公告)日:2003-07-24
申请号:DE50002574
申请日:2000-07-13
Applicant: DEGUSSA , FRAUNHOFER GES FORSCHUNG
Inventor: OSTGARD DR , PANSTER DR , REHREN DR , BERWEILER MONIKA , STEPHANI DR , SCHNEIDER DR
IPC: B01J35/02 , B01J23/72 , B01J23/75 , B01J23/755 , B01J23/86 , B01J25/02 , B01J35/08 , B01J37/00 , B01J37/02 , B22F1/00 , C07B61/00 , C07C209/36 , C07C211/46
Abstract: Metal catalysts consist of hollow molds. An Independent claim is also included for the production of metal catalysts comprising spraying metal powders together with a binder onto molds made of combustible material, i.e. polystyrene, and calcining the material forming the hollow mold. Preferred Features: The catalysts comprise hollow spheres having a diameter of 0.5-20 mm and a wall thickness of 0.1-5 mm. The catalysts have an impermeable casing having an open porosity of maximum 80% and made up of different layers.
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公开(公告)号:DE59708975D1
公开(公告)日:2003-01-30
申请号:DE59708975
申请日:1997-05-07
Applicant: DEGUSSA
Inventor: KRAUSE DR , LANSINK-ROTGERINK DR , TACKE DR , PANSTER DR , BURMEISTER DR
IPC: B01J21/08 , B01J23/52 , B01J23/66 , B01J35/10 , B01J37/00 , C01B33/12 , C04B35/14 , C04B35/634 , C04B35/636 , C07B61/00 , C07C29/04 , C07C31/08 , C07C31/10 , C07C67/035 , C07C67/04 , C07C69/15 , C09C1/30
Abstract: Pressings based on pyrogenic silica (SiO2) have an outside diameter of 0.8-20 mm, BET surface area of 30-400 m /g, pore volume of 0.5-1.3 ml/g, breaking strength of 10-250 N, composition > 99.8 wt.% SiO2 and
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