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公开(公告)号：DE59802657D1
公开(公告)日：2002-02-21
申请号：DE59802657
申请日：1998-08-14
Applicant: BASF AG
Inventor： HUEBINGER WOLFGANG , HOLTRUP WALTER , HEIDER WOLFGANG
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)).
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12.发明专利
公开(公告)号：AU8979598A
公开(公告)日：1999-03-08
申请号：AU8979598
申请日：1998-08-14
Applicant: BASF AG
Inventor： HUBINGER WOLFGANG , HOLTRUP WALTER , HEIDER WOLFGANG
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)).
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公开(公告)号：DE4340136A1
公开(公告)日：1995-06-01
申请号：DE4340136
申请日：1993-11-25
Applicant: BASF AG
Inventor： BARWICH JUERGEN , AYDIN ORAL , ERHARDT ULRICH , HOLTRUP WALTER
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公开(公告)号：DE59808787D1
公开(公告)日：2003-07-31
申请号：DE59808787
申请日：1998-04-23
Applicant: BASF AG
Inventor： REHMER GERD , HOLTRUP WALTER
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.
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公开(公告)号：ES2172187T3
公开(公告)日：2002-09-16
申请号：ES98941420
申请日：1998-08-14
Applicant: BASF AG
Inventor： HUBINGER WOLFGANG , HOLTRUP WALTER , HEIDER WOLFGANG
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)).
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Patent Agency Ranking16.发明专利
公开(公告)号：AU748690B2
公开(公告)日：2002-06-13
申请号：AU8979598
申请日：1998-08-14
Applicant: BASF AG
Inventor： HUBINGER WOLFGANG , HOLTRUP WALTER , HEIDER WOLFGANG
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)).
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公开(公告)号：DE19748886A1
公开(公告)日：1999-05-06
申请号：DE19748886
申请日：1997-11-05
Applicant: BASF AG
Inventor： HUEBINGER WOLFGANG DR , HOLTRUP WALTER , KESLER JOCHEN DR
Abstract: The liquid is subjected to flash evaporation in a separator. An Independent claim is included for the corresponding plant, which follows a stripping column, especially for deodorizing. Flash evaporation takes place in a cyclone separator. The free flow velocity of vapor in the separator exceeds 0.8 m/s and is especially 2-10 m/s.
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公开(公告)号：DE19735739A1
公开(公告)日：1999-02-25
申请号：DE19735739
申请日：1997-08-18
Applicant: BASF AG
Inventor： HUEBINGER WOLFGANG DR , HOLTRUP WALTER , HEIDER WOLFGANG
Abstract: In a process to reduce the formation of foam from liquids which tend to produce foam, liquid is introduced to a column with an overhead vacuum. The incoming dispersion of aqueous polymer fluid is heated using directly introduced steam, whose temperature is above that of the boiling point of the water currently at the top of the column. The steam is introduced by means of a slotted annular jet.
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公开(公告)号：DE19617183A1
公开(公告)日：1997-10-30
申请号：DE19617183
申请日：1996-04-29
Applicant: BASF AG
Inventor： REHMER GERD DR , HOLTRUP WALTER , SCHWARZ KARLHEINZ
Abstract: A process for the final preparation of polymer dispersions, in which the dispersion is circulated from a vessel (7) fitted with a stirrer (6) through a line (3) with a mixer (2) by means of a pump (4) in line (3), and treated with solution(s) or dispersion(s) of finishing agent(s) (I) which is/are injected from storage tank(s) (5) via a feed line (9) before the dispersion enters the mixer (2).
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公开(公告)号：DE59403548D1
公开(公告)日：1997-09-04
申请号：DE59403548
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.
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