公开(公告)号：DE50008524D1

公开(公告)日：2004-12-09

申请号：DE50008524

申请日：2000-08-18

Applicant: BASF AG

Inventor： GRENACHER VOLKER ,  STEPP HANS

IPC: B01J31/04 ,  B01J31/40 ,  C07C29/16 ,  C07C45/50

Abstract: Olefins having from 6 to 20 carbon atoms are hydroformylated by means of a continuous process in whicha) an aqueous cobalt(II) salt solution is brought into intimate contact with hydrogen and carbon monoxide to form a hydroformylation-active cobalt catalyst, and the aqueous phase comprising the cobalt catalyst is brought into intimate contact with the olefins and, if desired, an organic solvent and also hydrogen and carbon monoxide in at least one reaction zone where the cobalt catalyst is extracted into the organic phase and the olefins are hydroformylated,b) the output from the reaction zone is treated with oxygen in the presence of acidic aqueous cobalt(II) salt solution, with the cobalt catalyst being decomposed to form cobalt(II) salts and these being backextracted into the aqueous phase; and the phases are subsequently separated,c) the aqueous cobalt(II) salt solution is recirculated in unchanged form to step a), wherein the cobalt(II) salt solution has a concentration of from 1.1 to 1.7% by weight, calculated as cobalt, and is continually maintained under conditions under which the solubility limit of cobalt(II) formate in water is not exceeded.The process allows stable, trouble-free long-term operation.

公开(公告)号：DE50104707D1

公开(公告)日：2005-01-05

申请号：DE50104707

申请日：2001-09-11

Applicant: BASF AG

Inventor： ROEPER MICHAEL ,  BLANKERTZ HEINRICH-JOSEF ,  GRENACHER VOLKER ,  KROKOSZINSKI ROLAND ,  SCHOENMANN WILLI

IPC: B01J31/20 ,  C08C19/00 ,  C08F8/00

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).

公开(公告)号：DE59703815D1

公开(公告)日：2001-07-26

申请号：DE59703815

申请日：1997-09-19

Applicant: BASF AG

Inventor： BLANKERTZ HEINRICH-JOSEF ,  GRENACHER VOLKER ,  SAUER FRIEDRICH ,  SCHWAHN HARALD ,  SCHOENMANN WILLI ,  ROEPER MICHAEL

IPC: C07C29/16 ,  C07C29/86 ,  C07C45/50 ,  C08F6/08 ,  C08F8/00

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.