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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.
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公开(公告)号：CA2607099A1
公开(公告)日：2006-11-09
申请号：CA2607099
申请日：2006-05-02
Applicant: BASF AG
Inventor： GROPP STEFAN , LENZ ROBERT , RIECK DANIELA , HAUK ALEXANDER , LAUX GERHARD , HEILEK JORG
Abstract: The calculation of the above balance shows that the division of stream (5) into the streams (5a) and (5b) used here leads to the fact that in the neutralization stage no excess sodium formate is produced, so that any ejection can be omitted. Furthermore, the water content of the stream (14) comprising sodium formate recirculated to the first crystallization stage in this case can be set to a very low value.
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公开(公告)号：AU6030501A
公开(公告)日：2001-12-11
申请号：AU6030501
申请日：2001-05-16
Applicant: BASF AG
Inventor： ECK BERND , BAUMANN DIETER , HEILEK JORG , MULLER-ENGEL KLAUS JOACHIM
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公开(公告)号：AU4652801A
公开(公告)日：2001-10-23
申请号：AU4652801
申请日：2001-04-04
Applicant: BASF AG
Inventor： ECK BERND , BAUMANN DIETER , HEILEK JORG , MULLER-ENGEL KLAUS JOACHIM
Abstract: In a process for the purification of a crude acrylic acid melt, the crude acrylic acid melt is converted, under the action of low temperatures, into a crude acrylic acid suspension consisting of acrylic acid crystals and residual melt, and the acrylic acid crystals of the crude acrylic acid suspension are freed from remaining residual melt in a wash column, the production of the acrylic acid crystals of the crude acrylic acid suspension being carried out in the presence of water, the wash column being a wash column with forced transport of the acrylic acid crystals and the wash liquid used being the melt of acrylic acid crystals purified in the wash column.
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公开(公告)号：NO20075631L
公开(公告)日：2008-02-01
申请号：NO20075631
申请日：2007-11-06
Applicant: BASF AG
Inventor： HAUK ALEXANDER , GROPP STEFAN , LENZ ROBERT , RIECK DANIELA , HEILEK JORG , LAUX GERHARD
Abstract: The calculation of the above balance shows that the division of stream (5) into the streams (5a) and (5b) used here leads to the fact that in the neutralization stage no excess sodium formate is produced, so that any ejection can be omitted. Furthermore, the water content of the stream (14) comprising sodium formate recirculated to the first crystallization stage in this case can be set to a very low value.
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Patent Agency Ranking
公开(公告)号：SA1510B1
公开(公告)日：2006-11-04
申请号：SA03240323
申请日：2003-10-08
Applicant: BASF AG
Inventor： THIEL JOACHIM , HAMMON ULRIICH , BAUMANN DIETER , HEILEK JORG , SCHRODER JURGEN , -ENGEL KLAUS JOACHIM
IPC: C07C51/44
Abstract: الملخص: فىطريقةلتحضيرحمضاكريليك preparing acrylic acid،يتمتكثيفالخليطالغازىالمحتوىعلىحمضاكريليك acrylic acid الناتجمنالاكسدةالجزئيةذاتالطورالغازىالحفازةلمركب C3 اولىمنحمضالاكريليك acrylic acid،وبعدالتبريدالمباشربسائلإطفاء،تجزيئيافىعمودفصلمزودبمساحاتفاصلةداخلية،ويتصاعدداخلةبتيارجانبيمنحمضاكريليكخام crude acrylic acid،ويتمتفككاوليجوميرات oligomers حمضالاكريليك acrylic acid المتكونة،وتعريضغازالتفككالناتجالىتقويممتعاكسالاتجاهقبلاعادةتدويره.
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公开(公告)号：BR0214089A
公开(公告)日：2004-09-28
申请号：BR0214089
申请日：2002-11-08
Applicant: BASF AG
Inventor： HAMMON ULRICH , BAUMANN DIETER , HEILEK JORG , MULLER-ENGEL KLAUS JOACHIM , ECK BERND
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公开(公告)号：CZ20023376A3
公开(公告)日：2003-05-14
申请号：CZ20023376
申请日：2001-04-04
Applicant: BASF AG
Inventor： ECK BERND , BAUMANN DIETER , HEILEK JORG , MULLER-ENGEL KLAUS JOACHIM
Abstract: In a process for the purification of a crude acrylic acid melt, the crude acrylic acid melt is converted, under the action of low temperatures, into a crude acrylic acid suspension consisting of acrylic acid crystals and residual melt, and the acrylic acid crystals of the crude acrylic acid suspension are freed from remaining residual melt in a wash column, the production of the acrylic acid crystals of the crude acrylic acid suspension being carried out in the presence of water, the wash column being a wash column with forced transport of the acrylic acid crystals and the wash liquid used being the melt of acrylic acid crystals purified in the wash column.
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公开(公告)号：ES2154768T3
公开(公告)日：2001-04-16
申请号：ES96115819
申请日：1996-10-02
Applicant: BASF AG
Inventor： BORHO KLAUS DR , HEILEK JORG , SCHNABEL GUNTER DR
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公开(公告)号：CA2607099C
公开(公告)日：2013-07-09
申请号：CA2607099
申请日：2006-05-02
Applicant: BASF AG
Inventor： HAUK ALEXANDER , GROPP STEFAN , LENZ ROBERT , RIECK DANIELA , HEILEK JORG , LAUX GERHARD
Abstract: The invention relates to a method for producing a solid sodium diformate preparation having a minimum formic acid concentration of 35 percent by weight relative to the total weight of the sodium diformate preparation. According to said method, an aqueous solution having a molar ratio HCOOH: HCOONa of more than 1.5:1 and a molar ratio HCOOH: H2O of at least 1.1:1 is produced from sodium formate and at least 74 percent by weight of formic acid at an elevated temperature, the aqueous solution is crystallized, and the solid phase is separated from the mother liquor. (i) A partial amount (A) of the mother liquor is used during the production of the aqueous solution while (ii) a partial amount (B) of the mother liquor is mixed with a sodium-containing base and the obtained sodium formate-containing mixture is also used during the production of the aqueous solution, optionally after separating a portion of the same and optionally after concentrating the same, the partial amounts (A) and (B) of the mother liquor amounting to 100 percent by weight.
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