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    METHOD OF AND EVAPORATOR FOR PERFORMING VAPORISATION OF COMPOUNDS SUSCEPTIBLE TO OXIDATION
    22.
    发明专利
    METHOD OF AND EVAPORATOR FOR PERFORMING VAPORISATION OF COMPOUNDS SUSCEPTIBLE TO OXIDATION 未知

    公开(公告)号：PL328158A1

    公开(公告)日：1999-01-18

    申请号：PL32815897

    申请日：1997-01-20

    Applicant: BASF AG

    Inventor： MOHR JUERGEN ,  VANSANT FRANS ,  POLT AXEL WERNER ,  SCHOLL STEPHAN ,  KRUEGER SIEGFRIED ,  STAATZ HARTMUT

    IPC: B01D1/22 ,  B01D1/06 ,  C07B63/00

    Abstract: PCT No. PCT/EP97/00245 Sec. 371 Date Jul. 24, 1998 Sec. 102(e) Date Jul. 24, 1998 PCT Filed Jan. 20, 1997 PCT Pub. No. WO97/26970 PCT Pub. Date Jul. 31, 1997The invention relates to a process for evaporating a liquid containing vaporizable oxidation-sensitive compounds in an evaporator in which the liquid is brought into contact with a heated solid surface for evaporation, by a process in which direct contact between the resulting vapor phase and the heated solid surface is substantially avoided. It also directed to an evaporator composed of a heatable solid surface (16), an apparatus (2, 3) for heating the solid surface and an apparatus (10) for feeding a liquid containing vaporizable compounds to the heatable solid surface, wherein the apparatus for feeding the liquid is designed and arranged in the evaporator in such a way (12, 14, 18) that direct contact between a resulting vapor phase and the heatable solid surface is substantially avoided.

    PROCESS FOR PRODUCING OLIGOAMINES OR POLYAMINES
    29.
    发明专利
    PROCESS FOR PRODUCING OLIGOAMINES OR POLYAMINES 未知

    公开(公告)号：CA2201782A1

    公开(公告)日：1996-04-18

    申请号：CA2201782

    申请日：1995-09-26

    Applicant: BASF AG

    Inventor： KNAUF WOLFGANG ,  BALZER WOLF-DIETER ,  OPPENLANDER KNUT ,  SLOTMAN WILHELMUS ,  MOHR JUERGEN

    IPC: C10G21/28 ,  B01D17/04 ,  C07C213/04 ,  C08F8/00 ,  C08G65/26 ,  C08G73/02 ,  C08G73/04 ,  C10G33/04

    Abstract: PCT No. PCT/EP95/03809 Sec. 371 Date Apr. 7, 1997 Sec. 102(e) Date Apr. 7, 1997 PCT Filed Sep. 26, 1995 PCT Pub. No. WO96/11225 PCT Pub. Date Apr. 18, 1996The preparation of alkoxylates of oligoamines or polyamines by a two-stage procedure where, in the first stage, one molecule of alkylene oxide per NH group is added onto the oligoamines or polyamines in the presence of water, alcohols or acids or a mixture thereof in the absence of a neutral or basic catalyst and, in the second stage, after removal of water and acids reaction with further alkylene oxide is carried out in the presence of a conventional neutral or basic catalyst, entails, before the second stage is carried out, an organic solvent or diluent or a mixture thereof from the group of (a) alcohols and phenols and their alkoxylates, (b) polyalcohols based on ethylene oxide, propylene oxide, butylene oxide or a mixture thereof, (c) N-substituted carboxamides, (d) alkanolmonoamines and alkanolpolyamines and their alkoxylates, (e) other alkoxylates of oligoamines or polyamines, (f) aromatic hydrocarbons, (g) aliphatic hydrocarbons, (h) ethers and (i) sulfones or sulfoxides being added.

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