13.
    发明专利
    未知

    公开(公告)号:AT397489T

    公开(公告)日:2008-06-15

    申请号:AT05798767

    申请日:2005-10-12

    Applicant: BASF SE

    Abstract: A process for extractively removing homogeneously dissolved catalysts from a reaction effluent of a hydrocyanation of unsaturated mononitriles to dinitriles with a hydrocarbon H, including performing the steps of a) concentrating the reaction effluent before step b) by distillation at pressures of from 0.1 to 5000 mbar and temperatures of from 10 to 150° C., b) adding a hydrocarbon H to the concentrated reaction effluent to obtain a stream I, and c) feeding stream I, without prior separation of the liquid phases, into an extraction apparatus and extracting it at a temperature T with the hydrocarbon H to obtain a stream II comprising the hydrocarbon H enriched with the catalyst and a stream III having a low catalyst content.

    17.
    发明专利
    未知

    公开(公告)号:BRPI0707971A2

    公开(公告)日:2011-05-17

    申请号:BRPI0707971

    申请日:2007-02-13

    Applicant: BASF SE

    Abstract: Preparation of nickel(0)-phosphorus ligand complexes (Q) containing at least a nickel(0) as central atom and at least a ligand containing phosphorus comprises reacting a nickel(II) compound with a reducing agent in the presence of the ligand to obtain a reaction mixture and extracting the obtained reaction mixture by adding at least a dinitrile, at least a hydrocarbon and at least two immiscible phases. Preparation of nickel(0)-phosphorus ligand complexes (Q) containing at least a nickel(0) as central atom and at least a ligand containing phosphorus comprises reacting a nickel(II) compound with a reducing agent in the presence of the ligand to obtain a reaction mixture, and extracting the obtained reaction mixture by adding at least a dinitrile, at least a hydrocarbon and at least two immiscible phases, where: the amount of nickel(0) content in the reaction mixture is at most 1.3 wt.%; the molar ratio of: the reducing agent to the nickel(II) compound is 1:1-1000:1, which is calculated as the molar ratio of the redox equivalent, and the ligand containing phosphorus to the nickel(II) compound is at most 30:1, which is calculated as the molar ratio of phosphorus and nickel atoms. Independent claims are included for: (1) a mixture comprising (Q), obtained by the above process; and (2) a method for the isomerization of unsaturated nitrile to linear unsaturated nitrile using (Q) as catalyst, which is regenerated by circulation method.

    СПОСОБ ПОЛУЧЕНИЯ СИНИЛЬНОЙ КИСЛОТЫ

    公开(公告)号:RU2496717C2

    公开(公告)日:2013-10-27

    申请号:RU2010123683

    申请日:2008-11-10

    Applicant: BASF SE

    Abstract: Изобретениеможетбытьиспользованов химическойи металлургическойпромышленности. Способполучениясинильнойкислотывключаетприготовлениегазообразногоформамидапосредствомиспаренияжидкогоформамидав испарителе. Времяпребыванияформамидав испарителеменее 20 с. Вкачествеиспарителяиспользуютмикроиспаритель, которыйпредставляетсобойнесколькопараллельныхмикроструктурированныхпластовиспарительныхи нагревательныхканалов, расположенныхпоочереднодругнаддругом. Каждыйпластпредставляетсобойплоскийконструктивныйузели имеетбольшоеколичестворасположенныхпараллельнодругдругуканалов, которыеимеютгидравлическийдиаметрот 5 до 4000 мкми образуютсквознойпутьпотокаотоднойстороныпластадодругой. Полученныйгазообразныйформамидподвергаюткаталитическойдегидратациис получениемсинильнойкислоты. Изобретениепозволяетполучатьсинильнуюкислотус высокойстепеньюселективности, атакжепридавлении, близкомк атмосферномуиливыше. 11 з.п. ф-лы, 2 ил, 5 табл., 5 пр.

    20.
    发明专利
    未知

    公开(公告)号:AT526336T

    公开(公告)日:2011-10-15

    申请号:AT07787009

    申请日:2007-07-03

    Applicant: BASF SE

    Abstract: Method of producing compounds of the general formula XPR2(OR1)  Ia where X is chlorine, bromine or iodine and R1 is an organic radical, by reacting compounds of the general formula X2PR2  II, in which X has the meaning given above and R2 is an organic radical, with compounds of the general formula R1OH  III, in which R1 has the meaning given above, to give a mixture IV, in that a) the postreaction is carried out at a temperature of from 50 to 240° C. and a pressure of from 0.001 to 0.9 bar, b) from the mixture IV the compounds Ia are separated off from the compounds PR2(OR1)2  Ib and, if appropriate, the compounds II and c) compounds Ib and, if appropriate, unreacted compounds II are returned to the synthesis stage.

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