公开(公告)号：CA1219882A

公开(公告)日：1987-03-31

申请号：CA457291

申请日：1984-06-22

Applicant: BASF AG

Inventor： LINDNER ALFRED ,  WAGNER ULRICH ,  VOLKAMER KLAUS ,  HOELDERICH WOLFGANG ,  HOCHSTEIN WALDHELM ,  IMMEL WOLFGANG

IPC: B01J27/00 ,  B01J27/28 ,  B01J29/00 ,  C07B61/00 ,  C07C1/00 ,  C07C5/23 ,  C07C5/25 ,  C07C7/04 ,  C07C11/08 ,  C07C67/00

Abstract: 1-Butene is recovered from a C4-hydrocarbon mixture which contains 2-butenes and may or may not contain 1-butene by catalytic isomerization of the 2-butenes to 1-butene at elevated temperatures and isolation of the 1-butene, by a process in which the said isomerization is carried out in the presence of an acidic catalyst at from 150 to 500.degree.C, the isomerization mixture obtained from the isomerization zone is fed into a distillation zone, 1-butene is taken off at the top of the distillation zone, a fraction containing 2-butenes is taken off in the lower third of the distillation zone and fed into the isomerization zone, and the starting C4hydrocarbon mixture which contains 2-butenes and may or may not contain 1-butene is fed to the distillation zone and/or the isomerization zone.

公开(公告)号：CA799351A

公开(公告)日：1968-11-19

申请号：CA799351D

Applicant: BASF AG

Inventor： MUELLER HANS-JUERGEN ,  KOCH KLAUS ,  MAHLER KARL ,  URBAN FRIEDRICH ,  RAICHLE LUDWIG ,  IMMEL WOLFGANG ,  HOTZ JOHANN

公开(公告)号：GB1131459A

公开(公告)日：1968-10-23

申请号：GB5490965

申请日：1965-12-28

Applicant: BASF AG

Inventor： RAICHLE LUDWIG ,  MAHLER KARL ,  MUELLER HANS-JUERGEN ,  KOCH KLAUS ,  IMMEL WOLFGANG ,  URBAN FRIEDRICH ,  HOTZ JOHANN

IPC: B01J2/04 ,  B05B7/06 ,  B05B7/10 ,  B05B7/16 ,  B29B9/00 ,  E01C19/17

Abstract: 1,131,459. Spray-producers. BADISCHE ANILIN- & SODA-FABRIK A.G. 28 Dec., 1965 [29 Dec, 1964], No. 54909/65. Heading B2F. Apparatus suitable for spraying molten thermoplastic materials comprises a gas nozzle 10 provided with an outlet 16, a gas feed pipe 11 connected tangentially to the nozzle 10 so as to produce a whirling stream of gas, and a feed tube 4 for the spray material formed at its generally conical lower end with a ring of apertures 14 through which the material is supplied to the whirling gas stream. The apertures are formed substantially perpendicular to the tapered surface 19 of the lower end of the tube 4. The material within the tube 4 is heated by an internal heating device 7 and an external electrical heating device 8, the temperature of the devices being controlled by thermocouples 6 and 2 respectively. The outlet 16 is provided with a sharp edge 21 and an insulating sleeve 9 is located around the device 8. A plate 12 containing the oulet 16 is adjustable towards the surface 19.

公开(公告)号：GB1108972A

公开(公告)日：1968-04-10

申请号：GB3369965

申请日：1965-08-06

Applicant: BASF AG

Inventor： HOTZ JOHANN ,  IMMEL WOLFGANG ,  KOCH KLAUS ,  MAHLER KARL ,  MUELLER HANS-JUERGEN ,  RAICHLE LUDWIG ,  URBAN FRIEDRICH

IPC: B29B9/00 ,  B29B9/06

Abstract: Thermoplastic synthetic resin powders are prepared by extruding the molten resin through a plurality of orifices to form strands and breaking up the strands to a powder by means of gas stream blown at a velocity of at least 100/m./sec. on to the strands as they are extruded from the orifices and in a direction perpendicular to the direction of extrusion, the flow velocity of the gas not being allowed to decrease in the region of the orifices. Specified resins are polyamides, e.g. polycaprolactam, polylaurolactam and polycapryllactam and dicarboxlic acid/diamine condensates such as those derived from adipic and sebacic acids and hexamethylenediamine, octamethylenediamine and 2,2 - (4,41 - diaminocyclohexyl) propane; and polymers of olefins, styrene, vinyl esters, vinyl ethers, alkyl acrylates and methacrylates, conjugated diolefins, vinyl chloride and tetrafluoroethylene. Apparatus suitable for carrying out the process of the invention is described and illustrated, and examples describe the preparation of powders from (1-3) "high pressure" polyethylene, (4) polylaurolactam, (5) polystyrene, (6) anethylene/vinyl acetate copolymer, (7) an ethylene/n-butyl acrylate copolymer and (8) "low pressure" polyethylene.

公开(公告)号：FR1431488A

公开(公告)日：1966-03-11

申请号：FR13364

申请日：1965-04-15

Applicant: BASF AG

Inventor： IMMEL WOLFGANG

IPC: B29C47/10

公开(公告)号：BE623061A

公开(公告)日：1963-04-01

申请号：BE623061

申请日：1962-10-01

Applicant: BASF AG

Inventor： IMMEL WOLFGANG ,  ROTZOLL RUDI-HEINZ ,  KANNE FRIEDRICH ,  ROTHE ROBERT ,  RUDOLPHI NORBERT ,  ZILLIKENS PAUL

IPC: C08F