公开(公告)号：FR1478247A

公开(公告)日：1967-04-21

申请号：FR60105

申请日：1966-05-03

Applicant: BASF AG

Inventor： DORFNER KONRAD ,  LINGE HERMANN ,  SCHAEFER EBERHARD ,  STREHLER HUGO

IPC: C08G63/78 ,  C08G85/00

公开(公告)号：DE1217756B

公开(公告)日：1966-05-26

申请号：DEB0070022

申请日：1962-12-18

Applicant: BASF AG

Inventor： GUENTHER DIPL-ING ERNST ,  NOE KURT ,  LINGE DR HERMANN ,  SCHAEFER EBERHARD

IPC: B01F5/24

Abstract: 1,060,610. Average-discharge mixing apparatus. BADISCHE ANILIN-& SODA FABRIK A. G. Dec. 11, 1963 [Dec. 18, 1962], No. 48883/63. Heading B1C. Bulk solids in a container 1 are mixed by being simultaneously withdrawn from several levels, the material from each level being separately supplied, as by pipes which end at different heights within the container, to a mixing zone 3. As shown, the pipes 2 are concentric and there is an annular space between the outermost pipe and the container wall. Other embodiments may comprise a single pipe divided longitudinally into sectors having apertures at different levels (see Fig. 2, not shown) or a member formed by spirally winding a triangular piece of material and inserting vertical partitions between the convolutions (see Fig. 3, not shown).

公开(公告)号：FR1379212A

公开(公告)日：1964-11-20

申请号：FR957433

申请日：1963-12-17

Applicant: BASF AG

Inventor： GUENTHER ERNST ,  NOE KURT ,  LINGE HERMANN ,  SCHAEFER EBERHARD

IPC: B01F5/24

公开(公告)号：DE3019767A1

公开(公告)日：1981-12-03

申请号：DE3019767

申请日：1980-05-23

Applicant: BASF AG

Inventor： BOTT KASPAR DIPL CHEM DR ,  KAIBEL GERD DIPL ING ,  HOFFMANN HERWIG DIPL CHEM DR ,  IRNICH RUDOLF DIPL CHEM DR ,  SCHAEFER EBERHARD

IPC: C07C67/03 ,  B01D3/36 ,  C07C67/02 ,  C07C69/14

Abstract: A process for the preparation of acetic acid esters CH3-CO-O-R1 (I, R1=an organic radical other than methyl and ethyl) by alkali-catalyzed trans-esterification of an acetic acid ester CH3-CO-O-R2 (II, R2=methyl or ethyl) with an alcohol R1-OH (III), accompanied by elimination of the alcohol R2-OH (IV), wherein (a) the trans-esterification reaction is carried out in the middle section KM of a distillation column K, the alcohol III being fed as liquid into the upper zone and the ester II into the lower zone of KM, (b) the alkaline catalyst is introduced into the upper part KU of K, (c) the alcohol IV, or a mixture of IV and the ester II, is taken off the top of the column, (d) the mixture obtained from (c) (unless the alcohol IV alone is obtained) is separated in the column section KU or in a stripper column KS into IV and the azeotrope of II and IV, and the latter is recycled to the lower zone of KM, (e) the ester I is taken as vapor or liquid from the lower zone of the lower section KL of K and (f) the catalyst is either removed, or recycled to KU, in a conventional manner.

公开(公告)号：DE2530304A1

公开(公告)日：1977-01-20

申请号：DE2530304

申请日：1975-07-08

Applicant: BASF AG

Inventor： DIETRICH ERNST ,  GUENTHER ERNST DIPL ING ,  HOERAUF WERNER DIPL ING ,  KISSEL ERNST DIPL ING ,  LINGE HERMANN DR ,  NEUMANN ECKART DIPL ING ,  SCHAEFER EBERHARD

IPC: C08G69/00 ,  B29B13/06 ,  F26B17/14 ,  F26B21/14 ,  B29B3/04

Abstract: A vertical cylinder for drying and heating granules which includes an inlet at the top of the cylinder, a conically tapered outlet at the bottom of the cylinder, a rotatable screening ring beneath the inlet, a chute beneath the screening ring and a scraper above the ring inlets for gases in the downward extending section of the cylinder, a shell and tube heat exchanger located coaxially in the bottom quarter of the cylinder, a horizontally movable grid as flow control device below the heat exchange and a discharge zone below the grid.

公开(公告)号：GB1081965A

公开(公告)日：1967-09-06

申请号：GB1918266

申请日：1966-05-02

Applicant: BASF AG

Inventor： DORFNER KONRAD ,  LINGE HERMANN ,  SCHAEFER EBERHARD ,  STREHLER HUGO

IPC: C08G63/78 ,  C08G85/00

Abstract: Water-insoluble pigments are continuously finely dispersed in fibre-forming polymers by grinding the pigment in a sand mill or bead mill, passing the dye suspension leaving the mill into a mixing unit in which it is mixed with the molten intermediates for the polymer, then passing the mixture into a reactor at 250-300 DEG C. for polymerization or polycondensation. Suitable pigments are TiO2, Fe2O3, MgO, CaCO3, BaSO4 and the phthalocyanines. These are preferably suspended in water, or when for use with polyethylene terephthalate, in glycol. The suspension may contain 7-25 wt. per cent of pigment. Materials to be pigmented may be polyamides and polyesters deriving from e.g. caprolactam, laurolactam, capryllactam or from dimethyl terephthalate and ethylene glycol, or the monomeric transesterification product thereof. The mill may be heated up to 250 DEG C. Suitable apparatus comprises a sand or bead mill with an inlet at the bottom, and an outlet at the top leading to a closed, heatable, cylindrical mixing unit, from which an outlet leads to a polymerization vessel. In examples TiO2 is suspended in water containing sodium metaphosphate or in ethylene glycol containing alumina sol and mixed with caprolactam or an ethylene glycol/dimethyl terephthalate mixture respectively.

公开(公告)号：GB1060610A

公开(公告)日：1967-03-08

申请号：GB4888363

申请日：1961-12-11

Applicant: BASF AG

Inventor： GUENTHER ERNST ,  NOE KURT ,  LINGE HERMANN ,  SCHAEFER EBERHARD

IPC: B01F5/24

Abstract: 1,060,610. Average-discharge mixing apparatus. BADISCHE ANILIN-& SODA FABRIK A. G. Dec. 11, 1963 [Dec. 18, 1962], No. 48883/63. Heading B1C. Bulk solids in a container 1 are mixed by being simultaneously withdrawn from several levels, the material from each level being separately supplied, as by pipes which end at different heights within the container, to a mixing zone 3. As shown, the pipes 2 are concentric and there is an annular space between the outermost pipe and the container wall. Other embodiments may comprise a single pipe divided longitudinally into sectors having apertures at different levels (see Fig. 2, not shown) or a member formed by spirally winding a triangular piece of material and inserting vertical partitions between the convolutions (see Fig. 3, not shown).