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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：DE50304605D1
公开(公告)日：2006-09-21
申请号：DE50304605
申请日：2003-10-06
Applicant: BASF AG
Inventor： THIEL JOACHIM , HAMMON ULRICH , BAUMANN DIETER , HEILEK JOERG , SCHROEDER JUERGEN , MUELLER-ENGEL KLAUS JOACHIM
Abstract: In a process for preparing acrylic acid, an acrylic acid-containing product gas mixture obtained by catalytic gas phase partial oxidation of a C 3 precursor of acrylic acid, after direct cooling with a quench liquid, is fractionally condensed in a separating column provided with internals, rising into itself with sidestream takeoff of crude acrylic acid, and the acrylic acid oligomers which form are dissociated and the resulting dissociation gas is subjected to a countercurrent rectification before it is recycled.
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公开(公告)号：DE50303223D1
公开(公告)日：2006-06-08
申请号：DE50303223
申请日：2003-07-30
Applicant: BASF AG
Inventor： DIEHL VOLKER , JAEGER ULRICH , SCHROEDER JUERGEN , THIEL JOACHIM
Abstract: A process for cleaning apparatus in which (meth)acrylic acid-containing organic solvents have been treated and/or generated and contain fouling and/or polymer and residues of organic solvent, in which the apparatus contents are subjected to a steam distillation in the apparatus.
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公开(公告)号：BR0317622A
公开(公告)日：2005-11-29
申请号：BR0317622
申请日：2003-12-24
Applicant: BASF AG
Inventor： THIEL JOACHIM , VANDENMERSCH HUGUES , SCHROEDER JUERGEN , DAMS ALBRECHT
Abstract: In a thermal separating process between at least one gaseous and at least one liquid stream, of which at least one comprises (meth)acrylic monomers, in a separating column containing sieve trays as separating internals, at least some of the sieve trays are operated above an entrainment fraction of 10% by weight.
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公开(公告)号：AU2003294002A1
公开(公告)日：2004-08-10
申请号：AU2003294002
申请日：2003-12-24
Applicant: BASF AG
Inventor： SCHRODER JURGEN , THIEL JOACHIM , DAMS ALBRECHT
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Patent Agency Ranking
公开(公告)号：BR0210492A
公开(公告)日：2004-06-22
申请号：BR0210492
申请日：2002-07-02
Applicant: BASF AG
Inventor： WOSTBROCK KARL-HEINZ , THIEL JOACHIM , GER HEINZ KR , FER ECKHARD STR , WEBER MARKUS , GERBER BERND , RUMPF BERND , SACHWEH BERND , KERTH STEFFEN
Abstract: A process for preparing a salt-free aqueous hydroxylamine solution by distilling an aqueous solution of a hydroxylammonium salt and a base in a tray column having at least two mechanical trays, wherein random or structured packings are located above at least one tray of the tray column over the cross section of the column.
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公开(公告)号：DE10227073A1
公开(公告)日：2003-07-03
申请号：DE10227073
申请日：2002-06-17
Applicant: BASF AG
Inventor： BASTIAENSEN ERIK , ECK BERND , THIEL JOACHIM , ROCHETTE PAUL , BAUMANN DIETER
Abstract: Purification of acrylic acid or methacrylic acid comprises crystallization to form an acrylic acid or methacrylic acid enriched product crystallizate and a mother liquor, distillation of at least a portion of the mother liquor to form a distillation residue that is at least partially drawn off and a head product and crystallization of at least a portion of the head product to form a crystallizate that is recycled. A process for the purification of acrylic acid or methacrylic acid by crystallization and distillation comprises: (A) crystallization of an acrylic or methacrylic acid containing mixture by formation of an acrylic acid or methacrylic acid enriched product crystallizate and a mother liquor; (B) distillation of at least a portion of the mother liquor to form a distillation residue that is at least partially drawn off and a head product; (C) crystallization of at least a portion of the head product to form a crystallization residue that is drawn off and a crystallizate; and (D) recycling of the crystallizate from step (C) to step (A).
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公开(公告)号：DE10139587A1
公开(公告)日：2003-02-20
申请号：DE10139587
申请日：2001-08-11
Applicant: BASF AG
Inventor： BECHTEL MARCUS , THIEL JOACHIM
IPC: B01D3/00
Abstract: A distillation column has a liquid distributor fabricated of glass. The distributor has one or more liquid distributor gullies into which one or more glass tubes are secured by heat partial-melting. Each glass tube has one or more lateral 3 mm drill holes clear of the gully and facilitating fluid flow.
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公开(公告)号：DE59803651D1
公开(公告)日：2002-05-08
申请号：DE59803651
申请日：1998-09-09
Applicant: BASF AG
Inventor： ECK BERND , MACHHAMMER OTTO , PROLL THEO , SCHLIEPHAKE VOLKER , THIEL JOACHIM , BROELLOS KLAUS
Abstract: A process for preparing acrylic acid or methacrylic acid comprises preparing a gaseous product mixture having essentially the composition of a reaction mixture of the catalytic gas phase oxidation of C3-/C4-alkanes, -alkenes, -alkanols and/or -alkanals and/or precursors thereof to form acrylic acid or methacrylic acid. The product is removed from the gaseous product mixture by a process comprising the following steps:(a) condensing said gaseous product mixture,(b) crystallizing acrylic acid or methacrylic acid from the solution obtained in step (a),(c) removing the resulting crystals from the mother liquor, and(d) recycling at least a portion of said mother liquor from step (c) into step (a).
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公开(公告)号：CZ2001271A3
公开(公告)日：2001-06-13
申请号：CZ2001271
申请日：1999-07-21
Applicant: BASF AG
Inventor： ECK BERND , HEILEK JOERG , SCHLIEPHAKE VOLKER , PROLL THEO , BROELLOS KLAUS , MACHHAMMER OTTO , THIEL JOACHIM
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