公开(公告)号：JPH07196726A

公开(公告)日：1995-08-01

申请号：JP28347894

申请日：1994-11-17

Applicant: BASF AG

Inventor： BARWICH JUERGEN ,  AYDIN ORAL ,  ERHARDT ULRICH ,  HOLTRUP WALTER

IPC: C08F6/10 ,  B01D3/10 ,  B01D3/34 ,  B01D3/38 ,  C08F6/00 ,  C08F6/06 ,  C08F6/28 ,  C08F20/10 ,  C08F20/12 ,  C09J133/04

公开(公告)号：JPH10324397A

公开(公告)日：1998-12-08

申请号：JP12754298

申请日：1998-05-11

Applicant: BASF AG

Inventor： REHMER GERD ,  HOLTRUP WALTER

IPC: B67D3/00 ,  B67D7/06

Abstract: PROBLEM TO BE SOLVED: To keep a high quality of an aqueous dispersant contained in a storage tank for a long time and prevent biodegradation and damage of equipment resulting from the biodegradation, by adjusting to keep the delivery opening at almost the water level when charging water by use of such a conduct pipe that the delivery opening follows up the level change near the water face. SOLUTION: A charging pipe 1 of a storage tank 7 is connected to a floating pipe 2 provided with a plurality of rotary joints 3. A float 4 is fitted to the end of the floating pipe 2 and a delivery opening 5 is positioned a little lower than the water level 6. The bottom of the water storage tank 7 is inclined to conduct water to a discharge pipe 8. In this constitution, fresh liquid is charged to the nearby position of the surface on charging it and the liquid held for a long time is taken out from the storage tank 7 through the lower discharge pipe 8 on discharging it. In this way, an additional equipments cost for agitation can be reduced and at the same time, the aqueous dispersant stored in the tank is prevented from excessive aging and the high quality is retained for a long time.

公开(公告)号：JPH1066929A

公开(公告)日：1998-03-10

申请号：JP11055297

申请日：1997-04-28

Applicant: BASF AG

Inventor： REHMER GERD DR ,  HOLTRUP WALTER ,  SCHWARZ KARLHEINZ

IPC: B05D3/00 ,  B05D7/24 ,  B29B7/74 ,  C08J3/09 ,  C08J3/20

Abstract: PROBLEM TO BE SOLVED: To provide a blending method of a polymer dispersion capable of attaining a sufficient mixing degree of a blending material and the polymer dispersion and capable of executing with a relatively low expense for a device. SOLUTION: The polymer dispersion is circulated with a pump 4 arranged at a conduit 3 from a vessel 7 provided with an agitator 6 through a conduit 3 provided with a mixing device 2, and at least one soln. or dispersion of at least one blending material is measured and introduced into the circulating polymer from a storage vessel 5 through a feed pipe 9 before the entering of the circulating polymer dispersion to the mixing device 2. Thus, the generation of coagulated lump is remarkably reduced.

公开(公告)号：ID23683A

公开(公告)日：2000-05-11

申请号：ID991359

申请日：1998-08-14

Applicant: BASF AG

Inventor： HUBINGER WOLFGANG ,  HOLTRUP WALTER ,  HEIDER WOLFGANG

IPC: B01D3/38 ,  B01D19/02 ,  C08F6/00

Abstract: A process for reducing the foam formation when a dispersion or liquid is treated with steam bya) introduction of steam into the lower region of a column and simultaneous feed of a medium at the top of the column, the steam ascending to the top of the column,b) contacting the medium with the steam, with foam formation,includes the medium fed in stage a) having been generated by mixing a dispersion or liquid with steam in an apparatus, this medium during the feed into the top of the column having a higher temperature than that of the steam which comes into contact with the medium (in stage b)).

公开(公告)号：ES2105473T3

公开(公告)日：1997-10-16

申请号：ES94118090

申请日：1994-11-17

Applicant: BASF AG

Inventor： BARWICH JUERGEN ,  AYDIN ORAL ,  ERHARDT ULRICH ,  HOLTRUP WALTER

IPC: C08F6/10 ,  B01D3/10 ,  B01D3/34 ,  B01D3/38 ,  C08F6/00 ,  C08F6/06 ,  C08F6/28 ,  C08F20/10 ,  C08F20/12 ,  C09J133/04

Abstract: A process for removing volatile residues from polyacrylate melts by evaporating off the volatile components under reduced pressure, adding entraining agents to the melts at temperatures above 100 DEG C and simultaneously circulating the melts by pumping.

公开(公告)号：DE19527143A1

公开(公告)日：1997-01-30

申请号：DE19527143

申请日：1995-07-25

Applicant: BASF AG

Inventor： HUEBINGER WOLFGANG DR ,  HOLTRUP WALTER

IPC: B01F23/30 ,  C08F6/00 ,  B01F3/04 ,  C08F6/10

Abstract: Uniformly mixing a dispersion using steam involves passing the dispersion along a tubular mixing vessel through which steam is flowing - comprises passing the dispersion and steam through at least one screen contg. one or more holes. The appts. for this method is also claimed, comprising a tubular mixing vessel (2) with an inlet (1), outlet (8), injector (3) with its exit near the inlet and at least one screen (5 - 7) with one or more holes (5A - 7A) between the injector and outlet.

公开(公告)号：DE19850486A1

公开(公告)日：2000-05-04

申请号：DE19850486

申请日：1998-11-02

Applicant: BASF AG

Inventor： REHMER GERD ,  HOLTRUP WALTER ,  LORCH ANTON

IPC: F16J15/18 ,  F16L5/06 ,  F16J15/00 ,  C10M101/00 ,  C10M105/14 ,  F04D29/06 ,  F16L51/00 ,  F16N1/00

Abstract: A stuffing box has a screw connector (5) or seat containing a lubricant-filled chamber (8, 9) surrounding a slide. A stuffing box, with a lubricated screw connector or seat for compressing the stuffing, has a lubricant-containing chamber (8, 9) which surrounds a slide and which is formed in the screw connection (5) or seat above the stuffing. Independent claims are also included for the following: (i) a pipeline system equipped with the above stuffing box; and (ii) a method of maintaining relative motion between a moving slide and a stuffing box by providing a lubricant in an open chamber (8, 9), completely surrounding the slide with a lubricant film in the chamber and applying the lubricant film onto the slide surface during relative motion. Preferred Features: Lubricant is supplied from a lubricant reservoir (18) to the chamber (8, 9) through the screw connector (5) or seat or through a closure (1) of the screw connector or seat. The closure (1) has one or more scraper elements (16) which are O-rings located in a recess along the slide movement direction. The slide is a plug retainer, a plug holding mandrel or a T-ring slide. The lubricant may be a water-insoluble oil (especially of 10-5000 mPa.s viscosity), a water-soluble lubricant, an oil or grease without ethylenically unsaturated groups or an oil containing unsaturated fatty acids such as edible oil.

公开(公告)号：DE19849223A1

公开(公告)日：2000-04-27

申请号：DE19849223

申请日：1998-10-26

Applicant: BASF AG

Inventor： REHMER GERD ,  GILBERT ERICH ,  HOLTRUP WALTER

IPC: B67D7/00 ,  B01F3/04 ,  B05B1/00 ,  B67D5/37

Abstract: Products with foaming tendency are filled into tankers and bulk containers using a spout fitted with a terminal, spaced apart, concentric shroud of approximately 100-600 mm length and less than approximately 200-300 mm diameter, which is preferably closed at its upper end.

公开(公告)号：DE19720070A1

公开(公告)日：1998-11-19

申请号：DE19720070

申请日：1997-05-14

Applicant: BASF AG

Inventor： REHMER GERD ,  HOLTRUP WALTER

IPC: B67D3/00 ,  B67D7/06 ,  B67D5/02 ,  B67D5/36 ,  C08J3/03

Abstract: In a process for filling and emptying a storage tank with aqueous dispersions, in which the tank is emptied through a pipe near the bottom, the outlet of the filling pipe follows the changes in the level of the liquid surface during filling and emptying and is adjusted so that it is at about the same height as the surface of the liquid. Also claimed is equipment for carrying out this process.

公开(公告)号：AU678621B2

公开(公告)日：1997-06-05

申请号：AU7905294

申请日：1994-11-25

Applicant: BASF AG

Inventor： BARWICH JUERGEN ,  AYDIN ORAL ,  ERHARDT ULRICH ,  HOLTRUP WALTER

IPC: C08F6/10 ,  B01D3/10 ,  B01D3/34 ,  B01D3/38 ,  C08F6/00 ,  C08F6/06 ,  C08F6/28 ,  C08F20/10 ,  C08F20/12 ,  C09J133/04

Abstract: A process for removing volatile residues from polyacrylate melts by evaporating off the volatile components under reduced pressure, adding entraining agents to the melts at temperatures above 100 DEG C and simultaneously circulating the melts by pumping.