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    Process for transferring heat to a liquid mixture comprising at least one (meth)acrylic monomer
    21.
    发明专利
    Process for transferring heat to a liquid mixture comprising at least one (meth)acrylic monomer 未知

    公开(公告)号：ZA200905039B

    公开(公告)日：2010-09-29

    申请号：ZA200905039

    申请日：2009-07-20

    Applicant: BASF SE

    Inventor： LIPOWSKY GUNTER ,  SCHLIEPHAKE VOLKER ,  RISSEL STEFFEN ,  JAEGER ULRICH ,  HOEFER FRANK ,  HAREMZA SYLKE ,  MUELLER-ENGEL KLAUS JOACHIM ,  ZUROWSKI PETER

    IPC: C08F20060101 ,  C08K20060101 ,  F28D20060101

    Abstract: Process for transferring heat to a liquid mixture comprising at least one (meth)acrylic monomer with the aid of an indirect heat exchanger comprises introducing the liquid mixture simultaneously into the primary side of the heat exchanger by a liquid heat carrier and secondary side of the heat exchanger, where: the liquid mixture comprising at least one (meth)acrylic monomer contains at least one added active compound other than (meth)acrylic monomers from tertiary amine or salts formed from a tertiary amine and Bronsted acid, and quaternary ammonium compounds. Process for transferring heat to a liquid mixture comprising at least one (meth)acrylic monomer with the aid of an indirect heat exchanger comprises introducing the liquid mixture simultaneously into the primary side of the heat exchanger by a liquid heat carrier and secondary side of the heat exchanger, where: the liquid mixture comprising at least one (meth)acrylic monomer contains at least one added active compound other than (meth)acrylic monomers from tertiary amine or salts formed from a tertiary amine and Bronsted acid, and quaternary ammonium compounds, with proviso that none of the tertiary and quaternary nitrogen atoms in the active compound bears a phenyl group, but at least partly contains an alkyl group.

    Method for cleaning alkyne, particularly acetylene originated from incomplete burning of methane, natural gas, liquefied petroleum gas or their mixture with oxygen, involves utilizing solvent, to which polymerization inhibitor is added
    23.
    发明专利
    Method for cleaning alkyne, particularly acetylene originated from incomplete burning of methane, natural gas, liquefied petroleum gas or their mixture with oxygen, involves utilizing solvent, to which polymerization inhibitor is added 未知

    公开(公告)号：DE102008032561A1

    公开(公告)日：2009-01-22

    申请号：DE102008032561

    申请日：2008-07-10

    Applicant: BASF SE

    Inventor： LIPOWSKY GUNTER ,  VICARI MAXIMILIAN ,  HAREMZA SYLKE ,  REINIG HANS-WALTER ,  DIEHL RAINER

    IPC: C07C11/24

    Abstract: Alkyne cleaning involves utilizing a solvent, to which a polymerization inhibitor is added. The polymerization inhibitor is selected from N-oxylene, secondary amine or their mixture. The solvent is selected from N-alkyl substituted pyrrolidone, dimethylformamide, dimethylacetamide, lactone, alcohol, mineral oils, water, alkaline solutions, alkane or their mixture. The N-oxylene has general formula (I), and secondary amine has general formula (II). n,m : 0, 1, 2, 3, 4 or 5; R 1>, R 2>, R', R'', R 5>-R 10>H, 1-8C-alkyl, 3-8C-cycloalkyl, 3-8C-heterocycle, 2-8C-alkenyl, 2-8C-alkinyl, 5-16C-aryl, 5-16C-heteroaryl or functional group selected from=O, -NHR 11>, -N(R 11>) 2, -SR 11>, -OR 11>, -CHO, -C(=O)R 11>, -COOR 11>, -OC(=O)R 11>or -NHC(=O)R 11>, where R 11>=H, 1-8C-alkyl, 3-8C-cycloalkyl, 3-8C-heterocycle, 2-8C-alkenyl, 2-8C-alkinyl, 5-16C-aryl or 5-15C-heteroaryl, where the aryl and heteroaryl groups are bonded via a carbon bridge with 1-8C or heteroatom; and R 13>, R 14>, R, R''', R 17>-R 23>H, 1-8C-alkyl, 3-8C-cycloalkyl, 3-8C-heterocycle, 2-8C-alkenyl, 2-8C-alkinyl, 5-16C-aryl, 5-16C-heteroaryl or a functional group selected from=O, -NHR 24>, -N(R 24>) 2, -SR 24>, -OR 24>, -CHO, -C(=O)R 24>, -COOR 24>, -OC(=O)R 24>or -NHC(=O)R 24>, where R 24>=same as variable group of R 11>. Provided that: (A) one of R 1>, R 2>, R', R'', R 5>-R 10>of two different molecules of formula (I) forms a saturated or unsaturated, branched or normal carbon bridge with 2-20 atoms between these two molecules, where carbon bridge contains hetero atom selected from N, O, P or S, and if necessary a functional group selected from -NHR 12>, -N(R 12>) 2, -SR 12>, -OR 12>or=O, where R 12>=same as variable group of R 11>. An independent claim is included for a mixture, which contains a solvent and a polymerization inhibitor. [Image] [Image].

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