公开(公告)号：US3559723A

公开(公告)日：1971-02-02

申请号：US3559723D

申请日：1968-10-31

Applicant: BASF AG

Inventor： MANN WALTER ,  WAGNER JOACHIM ,  JAEGER WERNER

IPC: B01D7/02 ,  F25B13/00

CPC classification number: B01D7/02

Abstract: Separating sublimation products from gases in nested tube separators having heat exchange in the interior of the separator as well as from the outer wall, the outer wall being kept, during the sublimation and melting out of the sublimation product, substantially constantly at a temperature which is somewhat above the melting point of the sublimation product; in the corresponding apparatus, the heat exchange system for the interior and that for the exterior of the separator are separate from each other.

公开(公告)号：DE10101313A1

公开(公告)日：2001-07-26

申请号：DE10101313

申请日：2001-01-12

Applicant: BASF AG ,  FRAUNHOFER GES FORSCHUNG

Inventor： BECKER ARMIN ,  TREULING ULRICH ,  GOHLKE ULRICH ,  JAEGER WERNER ,  MUDERSBACH RAINER ,  STEGMANN STEFFI

IPC: B01D29/27 ,  B01D37/04 ,  B01D46/10 ,  B01D29/00 ,  G02F1/00

Abstract: In a filtration process to separate solid, fluid or dissolved substances from a fluid, the substance is passed through one or more compressible filters. The filter can be especially subjected to a variable pressure by means of which the pore size is adapted in accordance with the substance to be separated and enhancing process efficacy The compressible filter material is polyurethane foam. Alternatively the filter material is made up of flakes from 0.1-50 mm preferably 5-15 mm in diameter. The fluid passes two or more times through the same filter or two filters arranged in series, and under increasing pressure. Also claimed is a suitable filter assembly (10) with a housing (12) with an inlet and outlet and a filter insert (44) which can be compressed or de-compressed with a suitable bellows assembly (18). One end of the bellows is fixed, and the other can move within the housing. Movement is effected by a piston (16) in a cylinder (14) in response to turbidity sensor (100) signals.

公开(公告)号：DE10139452A1

公开(公告)日：2003-02-20

申请号：DE10139452

申请日：2001-08-10

Applicant: BASF AG

Inventor： WITTELER HELMUT ,  SANNER AXEL ,  SPEAKMAN JOHN-BRYAN ,  DROHMANN CHRISTIAN ,  HAHN MATHIAS ,  JAEGER WERNER

IPC: A61K31/785 ,  A01N37/44 ,  A01N61/00 ,  A61P31/04 ,  A61P31/10 ,  C08G69/26 ,  C08G73/02 ,  C08G69/00 ,  A61K7/00 ,  C08G73/00 ,  D06M13/46

Abstract: Quaternary polyamideamines (VII) are new. Quaternary polyamideamines of formula (VII) are new. R , R , and R = straight chain or branched heteroatoms; R = H or alkyl; R = H or alkyl or two R together = R ; b = 0-50; and c = 1-50. Independent claims are also included for the preparation of quaternary polyamideamines (VII).

公开(公告)号：DE1619841A1

公开(公告)日：1971-03-25

申请号：DE1619841

申请日：1967-11-03

Applicant: BASF AG

Inventor： MANN WALTER DIPL-ING ,  WAGNER JOACHIM DIPL-ING ,  JAEGER WERNER

IPC: B01D7/02

Abstract: 1,235,360. Separation of sublimed material from gases. BADISCHE ANILIN-& SODAFABRIK A.G. 1 Nov., 1968 [3 Nov., 1967], No. 51927/68. Heading BIB. [Also in Division F4] Sublimed material, e.g. phthalic anhydride, admixed in vapour form with a gas is separated from the gas by passing the mixture through inlet 1 into a casing which contains, a system of tubes through which cooling medium is circulated so that the sublimed material solidifies on the tube system and the depleted gas leaves the casing through outlet 2. Heating medium is then circulated through the tube system so that the solid sublimed material melts and the liquid flows out of the casing. During the whole operation the casing is maintained at a substantially constant temperature, which is above the melting temperature of the sublimed material, by means of heating tubes 10 on the outside of the casing the tube system 10 is denser at the lower part of the casing. The internal tube system, which rests on rods 3 held in two supporting walls 4, comprises parallel coils a, b, c, each consisting of a tube winding backwards and forwards by means of 180‹ bends. The supporting walls 4 are held loosely in rails 6. Oil may be used as heat-exchange medium for the coils. Steam may be used to heat tubes 10. The apparatus may be constructed by laying one of the walls 4 in a horizontal position, securing the rods 3 thereto, placing the coils a. b. c, in position, securing the free ends of the rods to the other wall 4, turning the construction through 90‹, and introducing it into the casing.