公开(公告)号：CA1099745A

公开(公告)日：1981-04-21

申请号：CA317897

申请日：1978-12-13

Applicant: BASF AG

Inventor： GRAFEN PAUL ,  SCHOLZ HANS-ULRICH ,  SCHULZ BERNHARD

IPC: C07C29/76 ,  C07C27/00 ,  C07C29/80 ,  C07C29/84 ,  C07C31/04 ,  C07C43/30 ,  C07C67/00 ,  C07C401/00 ,  C07C403/00 ,  C07C403/08 ,  C07C403/12 ,  C07F9/53

Abstract: of the disclosure: A process for treating residues which result from the Wittig synthesis of olefins and which consist principally of methanol, triphenylphosphine oxide, salts and organic by-products, by steam-stripping the volatile constituents, with partial condensation of the steam, and separating the resulting aqueous-organic mixture at 80-100.degree.C into a saline aqueous phase and an organic phase containing principally triphenylphosphine oxide. Using this process provides a simple method of freeing, from triphenylphosphine oxide and other organic impurities, the effluent from syntheses which result in the formation of triphenylphosphine oxide, and thereby on the one hand substantially facilitates the purification of the effluent and on the other hand provides a simple method of recovering the triphenylphosphine oxide. The latter compound, which is easily purified by distillation or recrystallization, can then be used, for example, to prepare the triphenylphosphine required for Wittig syntheses or to prepare the triphenylphosphine dichloride required for the synthesis of pesticides.

公开(公告)号：IN186855B

公开(公告)日：2001-11-24

申请号：IN2956MA1997

申请日：1997-12-22

Applicant: BASF AG

Inventor： BALDENIUS KAI-UWE ,  KAISER WULF ,  BOCKSTIEGEL BERNHARD ,  LAAS HARALD ,  SCHULZ BERNHARD ,  SCHMITT PETER ,  GLIETENBERG HELMUT

IPC: B01J27/138 ,  C07D311/72

公开(公告)号：HU185159B

公开(公告)日：1984-12-28

申请号：HU387381

申请日：1981-12-18

Applicant: BASF AG

Inventor： HOPPE PETER P ,  SCHNEIDER JOACHIM U ,  SCHULZ BERNHARD ,  TIEFENBACHER HUBERT

IPC: A61K9/00 ,  A61K9/107 ,  A61K47/14 ,  A61K47/26 ,  A61K47/44 ,  A61K31/015 ,  A61K9/10

Abstract: A process for the preparation of beta -carotene micellar solutions, wherein a non-ionic emulsifier which is suitable for the preparation of micellar solutions is heated at from 160 DEG to 180 DEG C. and a total of from 20 to 30% by weight, based on the emulsifier, of beta -carotene is introduced in the presence of a conventional antioxidant, the hot homogeneous mixture is cooled rapidly to below 100 DEG C. by adding water, and the formulation is brought to the desired concentration of from 3 to 6% by weight by adding further water, and the beta -carotene micellar solutions obtained by this process. The non-ionic emulsifiers used in this process have an HLB value of from 12 to 16, and are in particular oxyethylated triglycerides of fatty acids of 12 to 18 carbon atoms containing 20-60 oxyethylene units. Parenteral admininstration of the stable beta -carotene micellar solutions according to the invention to cattle relieves the disturbed estrus cycle and impaired fertility caused by beta -carotene deficiency.

公开(公告)号：CA1058625A

公开(公告)日：1979-07-17

申请号：CA244696

申请日：1976-01-28

Applicant: BASF AG

Inventor： SCHULZ BERNHARD ,  PAUST JOACHIM ,  SCHNEIDER JOACHIM

IPC: C07C403/24 ,  C07C1/32 ,  C07C13/20 ,  C07C45/51 ,  C07C47/21 ,  C07C67/00 ,  C07C401/00 ,  C07C403/00 ,  C07D309/12 ,  C07F9/54 ,  C07C69/52 ,  C07C175/00

Abstract: Symmetrical carotenoids are prepared from the half-molecules by dimerizing the phosphonium salts of the half-molecules with peroxides or peroxo compounds in an alkaline medium.