2.
    发明专利
    未知

    公开(公告)号:DE10045056A1

    公开(公告)日:2002-03-21

    申请号:DE10045056

    申请日:2000-09-12

    Applicant: BASF AG

    Abstract: The invention relates to a method for the continuous hydroformylation of polyalkenes having 30 to 700 carbon atoms and being unsaturated essentially once. The inventive method involves i) producing a cobalt carbonyl catalyst which is active for hydroformylation from a catalyst precursor which is dissolved in an aqueous phase, in the absence of the polyalkenes, ii) hydroformylating the polyalkenes with synthesis gas in the presence of the cobalt carbonyl catalyst in a reaction zone, and iii) separating the cobalt carbonyl catalyst from the discharge from the reaction zone while at least partially regenerating the catalyst precursor, and returning the catalyst precursor to step i).

    3.
    发明专利
    未知

    公开(公告)号:AT283869T

    公开(公告)日:2004-12-15

    申请号:AT01967331

    申请日:2001-09-11

    Applicant: BASF AG

    Abstract: Essentially monounsaturated polyalkylenes having from 30 to 700 carbon atoms are continuously hydroformylated by a process in which i) a hydroformylation-active cobalt carbonyl catalyst is prepared from a catalyst precursor dissolved in an aqueous phase in the absence of the polyalkylenes, ii) the polyalkylenes are hydroformylated by means of synthesis gas in the presence of the cobalt carbonyl catalyst in a reaction zone, iii) the cobalt carbonyl catalyst is separated from the output from the reaction zone with at least partial reformation of the catalyst precursor and the catalyst precursor is recirculated to step i).

    7.
    发明专利
    未知

    公开(公告)号:DE10003871A1

    公开(公告)日:2001-08-02

    申请号:DE10003871

    申请日:2000-01-28

    Applicant: BASF AG

    Abstract: The invention relates to a method for hydroformylating olefins having between 20 and 400 carbon atoms by reacting the olefins with synthesis gas in the presence of a cobalt carbonyl catalyst, by recovering the cobalt catalyst by extracting the discarded substances resulting from the reaction using an aqueous acidic solution in the presence of oxygen, and by separating the organic and aqueous phases. The inventive method is characterized in that: (a) the aqueous phase is separated away from the organic phase to the greatest possible extent by using mass forces such that the proportion of the aqueous phase dispersed in the organic phase is equal to 2 wt. % or less with regard to the organic phase, and; (b) the organic phase involved in step (a) is subjected to an electric field while effecting the coalescence of the dispersed aqueous phase. This enables the residual cobalt content in the hydroformylation product to be reduced to less than 1 ppm.

    8.
    发明专利
    未知

    公开(公告)号:ES2158507T3

    公开(公告)日:2001-09-01

    申请号:ES97909234

    申请日:1997-09-19

    Applicant: BASF AG

    Abstract: In a process for the hydroformylation of olefins having from 12 to 100 carbon atoms in the presence of a cobalt carbonyl catalyst at pressures of from 100 to 400 bar and at from 100 to 200° C., depressurization and recovery of the cobalt catalyst by extraction with an aqueous acid solution in the presence of atmospheric oxygen,(a) the extraction is carried out in the presence of a polymeric emulsion breaker selected from the group consisting of alkoxylated compounds containing amino, imino or OH groups, and(b) to achieve complete phase separation in the organic phase still containing small amounts of aqueous phase, the formation of relatively large droplets of the dispersed aqueous phase is effected in a coalescence stage.

    Continuous hydroformylation of olefin for aldehyde and alcohol production, using recycled cobalt catalyst derived from cobalt salt solution under conditions such that the solubility limit of cobalt formate is not exceeded

    公开(公告)号:DE19939491A1

    公开(公告)日:2001-02-22

    申请号:DE19939491

    申请日:1999-08-20

    Applicant: BASF AG

    Abstract: The continuous hydroformylation of 6-20C olefins with hydrogen and carbon monoxide, with regeneration and recycling of the cobalt catalyst, is carried out with aqueous cobalt(II) salt solution. A continuous process for the hydroformylation of 6-20C olefins (I) by: (a) contacting an aqueous cobalt(II) salt solution with hydrogen and carbon monoxide to form a hydroformylation catalyst and then bringing the aqueous catalyst phase into intimate contact with (I), optional organic solvent and H2 plus CO so that the catalyst is extracted into the organic phase and (I) is hydroformylated; (b) treating the product from the reaction zone with oxygen in presence of acid aqueous Co salt solution so that the catalyst is decomposed to form Co(II) salts which are back-extracted into the aqueous phase, and then separating the phases; and (c) returning the aqueous Co(II) salt solution unchanged to stage (a). The Co(II) salt solution has a concentration of 1.1-1.7 wt% (as cobalt) and is always kept under conditions such that the solubility limit of Co(II) formate in water is not exceeded.

Patent Agency Ranking