公开(公告)号：JPH10114709A

公开(公告)日：1998-05-06

申请号：JP24895597

申请日：1997-09-12

Applicant: BASF AG

Inventor： WEYER HANS-JUERGEN DR ,  ECK BERND ,  BAUMANN DIETER ,  MALTRY BERNHARD

IPC: B01J2/00 ,  B01J2/02 ,  B01J2/26 ,  C07C67/52 ,  C07C69/675

Abstract: PROBLEM TO BE SOLVED: To provide a process for producing particles of neopentyl hydroxypivalate(NHP) free from the defects of conventional process while suppressing the generation of cake, provide a particulate NHP having low cake-generation rate and provide a process for granulating the particle with a granulator. SOLUTION: This process for the production of particulate NHP comprises the supply of a molten NHP containing >=3wt.% of NHP crystal based on the total weight of NHP to a cooling zone to solidify the molten NHP. A particulate NHP having low caking tendency can be produced by this process. The particles can be granulated by a method using a granulator for molten material provided with a precooling device 2, a precrystallizer 3, a liquid droplet forming machine 4 or a planar applicator, a cooling belt 6 and a crusher in the case of using a planar applicator.

公开(公告)号：DE50001453D1

公开(公告)日：2003-04-17

申请号：DE50001453

申请日：2000-07-11

Applicant: BASF AG

Inventor： BRUNNER MELANIE ,  LORENZ ERICH ,  MALTRY BERNHARD ,  HEILEK JOERG

IPC: B01J2/02 ,  B01J2/26 ,  C07C29/17 ,  C07C29/42 ,  C07C29/76 ,  C07C29/78 ,  C07C31/125 ,  C07C31/20 ,  C07C31/22 ,  C07C33/044

Abstract: A process for the production of tablet-shaped granular material from a melt, in which(i) a melt is prepared,(ii) the prepared melt is shaped to droplets,(iii) the droplets are deposited on a cooling surface, and(iv) the deposited droplets solidify to give the granular material, wherein the melt comprises an alcohol, and the melt has a melting point of 30° C. or above.

公开(公告)号：DE19536792A1

公开(公告)日：1997-04-03

申请号：DE19536792

申请日：1995-10-02

Applicant: BASF AG

Inventor： ECK BERND ,  MALTRY BERNHARD

IPC: B01D9/02 ,  B01D9/00 ,  C07B63/00 ,  C07C7/14 ,  C07C51/43 ,  C07C57/07 ,  C07C29/78 ,  C07C39/07 ,  C07C39/16 ,  C07C263/20 ,  C07C265/14 ,  C07D207/267 ,  C07D223/10

公开(公告)号：ES2167822T3

公开(公告)日：2002-05-16

申请号：ES98110345

申请日：1998-06-05

Applicant: BASF AG

Inventor： MELDER JOHANN-PETER DR ,  BAUMANN DIETER ,  MALTRY BERNHARD

IPC: C07C69/675 ,  B01D9/00 ,  B01J2/26 ,  C07C67/52

公开(公告)号：DE19637380C1

公开(公告)日：1998-04-09

申请号：DE19637380

申请日：1996-09-13

Applicant: BASF AG

Inventor： WEYER HANS-JUERGEN DR ,  ECK BERND ,  BAUMANN DIETER ,  MALTRY BERNHARD

IPC: B01J2/00 ,  B01J2/02 ,  B01J2/26 ,  C07C67/52 ,  C07C69/675 ,  B01J2/06

Abstract: The production of neopentyl glycolhydroxypivalate (NPG-HP) granules (I) comprises pouring molten NPG-HP onto a cooling surface so that the melt solidifies, using a melt containing 3 wt.% NPG-HP crystals. Also claimed are: (i) NPG-HP granules (I) obtained by the above process, especially: (a) spherical granules with an average diameter of 3-16 mm; or (b) granules with an average diameter of 20-100 mm and at least two parallel faces 15-30 mm apart; and (ii) the use of a granulating system for the above process, with a precooler (2) for the NPG-HP melt, a precrystalliser (3), and a drop-forming system (4) or a flat spreader to bring the melt onto a cooling belt (6), with a crusher if a flat spreader is used.

公开(公告)号：AT234146T

公开(公告)日：2003-03-15

申请号：AT00954471

申请日：2000-07-11

Applicant: BASF AG

Inventor： BRUNNER MELANIE ,  LORENZ RUDOLF ERICH ,  MALTRY BERNHARD ,  HEILEK JOERG

IPC: B01J2/02 ,  B01J2/26 ,  C07C29/17 ,  C07C29/42 ,  C07C29/76 ,  C07C29/78 ,  C07C31/125 ,  C07C31/20 ,  C07C31/22 ,  C07C33/044

Abstract: A process for the production of tablet-shaped granular material from a melt, in which(i) a melt is prepared,(ii) the prepared melt is shaped to droplets,(iii) the droplets are deposited on a cooling surface, and(iv) the deposited droplets solidify to give the granular material, wherein the melt comprises an alcohol, and the melt has a melting point of 30° C. or above.

公开(公告)号：AT208229T

公开(公告)日：2001-11-15

申请号：AT98110345

申请日：1998-06-05

Applicant: BASF AG

Inventor： MELDER JOHANN-PETER DR ,  BAUMANN DIETER ,  MALTRY BERNHARD

IPC: C07C69/675 ,  B01D9/00 ,  B01J2/26 ,  C07C67/52

公开(公告)号：DE59601070D1

公开(公告)日：1999-02-11

申请号：DE59601070

申请日：1996-10-02

Applicant: BASF AG

Inventor： SCHMIDT-RADDE MARTIN DR ,  HELFERT HERBERT DR ,  ECK BERND ,  MALTRY BERNHARD

IPC: C07B63/00 ,  C07D207/26 ,  C07D207/267

Abstract: Purification of N-vinylpyrrolidone (I) comprises crystallisation in a crystalliser. The process includes pre-coating the surfaces of the crystalliser, on which crystals are to be grown during the crystallisation, with a seed layer of (I).

公开(公告)号：DE59601069D1

公开(公告)日：1999-02-11

申请号：DE59601069

申请日：1996-10-02

Applicant: BASF AG

Inventor： ECK BERND ,  MALTRY BERNHARD

IPC: B01D9/02 ,  B01D9/00 ,  C07B63/00 ,  C07C7/14 ,  C07C51/43 ,  C07C57/07

公开(公告)号：ES2193979T3

公开(公告)日：2003-11-16

申请号：ES00954471

申请日：2000-07-11

Applicant: BASF AG

Inventor： BRUNNER MELANIE ,  LORENZ RUDOLF ERICH ,  MALTRY BERNHARD ,  HEILEK JORG

IPC: B01J2/02 ,  B01J2/26 ,  C07C29/17 ,  C07C29/42 ,  C07C29/76 ,  C07C29/78 ,  C07C31/125 ,  C07C31/20 ,  C07C31/22 ,  C07C33/044

Abstract: A process for the production of tablet-shaped granular material from a melt, in which(i) a melt is prepared,(ii) the prepared melt is shaped to droplets,(iii) the droplets are deposited on a cooling surface, and(iv) the deposited droplets solidify to give the granular material, wherein the melt comprises an alcohol, and the melt has a melting point of 30° C. or above.