Método para la producción de poliisocianatos

    公开(公告)号:ES2400721T3

    公开(公告)日:2013-04-11

    申请号:ES05803068

    申请日:2005-10-27

    Applicant: BASF SE

    Abstract: Método para la producción de poliisocianatos mediante reacción de aminas primarias con fosgeno en presenciade un solvente, caracterizado porque como solventes se emplean solventes iónicos que exhiben por lo menos uncatión y por lo menos un anión, y el catión del solvente iónico es orgánico, donde el catión del solvente iónico eselegido de entre el grupo que consiste en cationes amonio cuaternario, cationes fosfonio, cationes imidazolio,cationes H-pirazolio, iones piridazinio, iones pirimidinio, iones pirazinio, cationes pirolidinio, cationes guadinio,cationes de cinco a por lo menos seis miembros, que contienen por lo menos un átomo de fósforo o azufre,contienen por lo menos un átomo de fósforo o azufre y el catión 1,8-diazabiciclo[5.4.0]undec-7-enio así como elcatión 1,8-diazabiciclo[4.3.0]non-5-enio así como oligómeros y polímeros que contienen estos cationes.

    2.
    发明专利
    未知

    公开(公告)号:AT482928T

    公开(公告)日:2010-10-15

    申请号:AT03763693

    申请日:2003-07-03

    Applicant: BASF SE

    Abstract: The invention relates to a process for the preparation of tetrasubstituted ureas by reaction of the corresponding amines with phosgene in the presence of an aqueous inorganic base at a temperature in the range from 0 to 150° C., which comprises: feeding the corresponding amine, the phosgene and the aqueous inorganic base on average continuously to the reaction apparatus, forming a two-phase system in the reaction apparatus through the choice of the tetrasubstituted ureas to be prepared, through the mixing ratios of the substances and substance mixtures to be fed in, through the temperature during the reaction and, where appropriate, through the feed of an organic solvent which is not completely miscible with water, and discharging the reaction mixture on average continuously from the reaction apparatus.

    3.
    发明专利
    未知

    公开(公告)号:DE502005004314D1

    公开(公告)日:2008-07-10

    申请号:DE502005004314

    申请日:2005-11-24

    Applicant: BASF SE

    Abstract: A process for preparing phthaloyl chloride by reacting phthalic anhydride with a chlorinating agent (I) selected from the group of thionyl chloride and phosgene in the presence of a catalyst at a temperature of from 80 to 200° C. and a pressure of from 0.01 to 10 MPa abs, in which the catalyst (II) used is triphenylphosphine, triphenylphosphine oxide or a mixture thereof.

    4.
    发明专利
    未知

    公开(公告)号:DE50214127D1

    公开(公告)日:2010-02-04

    申请号:DE50214127

    申请日:2002-10-17

    Applicant: BASF SE

    Abstract: In a process for preparing isocyanates by reacting the corresponding primary amines with phosgene in an inert solvent, use is made of from 0.01 to 50 mol % of a sulfoxide, a sulfone or a mixture thereof, based on the total amount of primary amine and isocyanate formed in the reaction solution.

    5.
    发明专利
    未知

    公开(公告)号:AT444951T

    公开(公告)日:2009-10-15

    申请号:AT02782937

    申请日:2002-10-17

    Applicant: BASF SE

    Abstract: In a process for preparing isocyanates by reacting the corresponding primary amines with phosgene in an inert solvent, use is made of from 0.01 to 50 mol % of a phosphine oxide, based on the total amount of primary amine and isocyanate formed in the reaction solution.

    6.
    发明专利
    未知

    公开(公告)号:DE502006002530D1

    公开(公告)日:2009-02-12

    申请号:DE502006002530

    申请日:2006-08-31

    Applicant: BASF SE

    Abstract: A process for preparing organic chlorides in which the chlorine atom is bonded to a CH 2 group by reacting the corresponding alcohols with thionyl chloride in the presence of a triaylphosphine oxide at a temperature of from 20 to 200° C. and a pressure of from 0.01 to 10 MPa abs, which comprises using the triarylphosphine oxide in a molar ratio to the amount of OH groups to be chlorinated of from 0.0001 to 0.5.

    7.
    发明专利
    未知

    公开(公告)号:AT419227T

    公开(公告)日:2009-01-15

    申请号:AT06793110

    申请日:2006-08-31

    Applicant: BASF SE

    Abstract: A process for preparing organic chlorides in which the chlorine atom is bonded to a CH 2 group by reacting the corresponding alcohols with thionyl chloride in the presence of a triaylphosphine oxide at a temperature of from 20 to 200° C. and a pressure of from 0.01 to 10 MPa abs, which comprises using the triarylphosphine oxide in a molar ratio to the amount of OH groups to be chlorinated of from 0.0001 to 0.5.

    9.
    发明专利
    未知

    公开(公告)号:AT396964T

    公开(公告)日:2008-06-15

    申请号:AT05817997

    申请日:2005-11-24

    Applicant: BASF SE

    Abstract: A process for preparing phthaloyl chloride by reacting phthalic anhydride with a chlorinating agent (I) selected from the group of thionyl chloride and phosgene in the presence of a catalyst at a temperature of from 80 to 200° C. and a pressure of from 0.01 to 10 MPa abs, in which the catalyst (II) used is triphenylphosphine, triphenylphosphine oxide or a mixture thereof.

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