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1.发明公开EINSATZ VON SCHAUMKÖRPERN IN OXIDATIONS-REAKTOREN ZUR HERSTELLUNG UNGESÄTTIGTER ALDEHYDE ODER CARBONSÄUREN 有权在氧化反应器的泡沫体在制备不饱和醛或羧酸USE
公开(公告)号：EP2315738A2
公开(公告)日：2011-05-04
申请号：EP09781221.8
申请日：2009-07-29
发明人： ZANTHOFF, Horst-Werner , BRAUSCH, Nicole , KUPPINGER, Franz-Felix , SAUER, Jörg , SABBAGH, Andreas , FRÜHLING, Dennis , WEBER, Markus , BECKER, Oliver
IPC分类号： C07C45/35 , C07C51/25 , C07C5/333 , C07C57/055
CPC分类号： B01J8/067 , B01J19/249 , B01J23/002 , B01J23/8885 , B01J35/04 , B01J37/0219 , B01J37/0225 , B01J2208/00221 , B01J2208/025 , B01J2219/00006 , B01J2219/0004 , B01J2219/2453 , B01J2219/2479 , B01J2219/2481 , B01J2523/00 , C07C5/333 , C07C45/35 , C07C51/252 , Y02P20/52 , C07C11/06 , C07C47/22 , C07C57/04 , B01J2523/17 , B01J2523/55 , B01J2523/68 , B01J2523/69
摘要： The present invention relates to a process for preparing unsaturated aldehydes or unsaturated carboxylic acids by heterogeneous catalytic gas phase oxidation of unsaturated or saturated hydrocarbons, comprising the process steps of: i) providing a gas mixture at least comprising a saturated hydrocarbon and catalytically dehydrogenating the at least one saturated hydrocarbon in the gas phase to obtain a gas mixture comprising an unsaturated hydrocarbon in a dehydrogenation reactor having a dehydrogenation catalyst material; or ii) providing a gas mixture at least comprising oxygen and at least one unsaturated hydrocarbon; iii) catalytically oxidizing the unsaturated hydrocarbon obtained in process step i) or provided in process step ii) in the gas phase to obtain a gas mixture comprising an unsaturated aldehyde in a first oxidation reactor having a first oxidation catalyst material; iv) optionally catalytically oxidizing the unsaturated aldehyde obtained in process step iii) in the gas phase to obtain a gas mixture comprising an unsaturated carboxylic acid in a second oxidation reactor having a second oxidation catalyst material; wherein at least one of the reactors selected from the dehydrogenation reactor, the first oxidation reactor and the second oxidation reactor comprises at least one foam body. The invention further relates to a process for preparing a polymer based on an unsaturated carboxylic acid, to an apparatus for preparing unsaturated carboxylic acids or a polymer based on unsaturated carboxylic acids, and to the use of an apparatus.
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2.发明公开VERFAHREN ZUR HERSTELLUNG VON ACROLEIN UMFASSEND DIE AUFARBEITUNG EINER ROHGLYCERIN-PHASE 审中-公开用于生产综合丙烯醛粗甘油相的加工
公开(公告)号：EP2356088A1
公开(公告)日：2011-08-17
申请号：EP09745047.2
申请日：2009-11-03
IPC分类号： C07C45/52 , C07C45/78 , C07C45/79 , C07C45/82 , C07C47/22 , B01J19/00 , C07C57/055 , D01F6/16 , D06M16/00 , C08F20/06
CPC分类号： C07C45/79 , C07C45/52 , C07C45/786 , C07C45/82 , C07C47/22
摘要： The invention relates to a method for producing acrolein, comprising the following steps: (a) dehydrating an aqueous glycerin phase G1 in an acrolein reaction region, obtaining an aqueous acrolein reaction phase; (b) at least partially separating the aqueous acrolein reaction phase into an acrolein-rich acrolein phase and an acrolein-poor (in comparison to the acrolein phase) residual phase R1, wherein the residual phase R1 comprises glycerin, water and various remainders from glycerin and water; (c) recycling at least a part of the residual phase R2 in step (a); wherein i) from a glycerin phase G2 comprising remainders that differ from glycerin and water, at least one of said remainders is separated and the thus obtained, purified glycerin phase G2 is immediately supplied to the acrolein reaction region, or ii) at least one remainder different from glycerin and water is separated out of a mixture phase M1 obtained by mixing a glycerin phase G2 with the acrolein-poor residual phase R1, and the thus obtained, purified mixture phase M1 is supplied to the acrolein reaction region. The invention furthermore relates to a method for producing acrylic acid, water-absorbing polymer formations, compounds and hygiene articles, to devices for carrying out the method and their application, to a method for purifying a glycerin phase and to the application of a glycerin phase.
摘要翻译： 本发明涉及一种用于通过甘油脱水中丙烯醛反应区到wässrige相位，获得wässrige丙烯醛反应相的制备丙烯醛; 至少部分地分离所述wässrige丙烯醛反应相与富丙烯醛在丙烯醛的相位和为丙烯醛贫残留相位包括甘油，水和各种其它残差; 和再循环残留相位入丙烯醛反应区的至少一部分。 此外，在除去残差中的至少一个，除甘油或水之外，从甘油相或甘油相与低丙烯醛残余物相混合，并供给所得到的纯化的甘油或混合相到所获得的混合物相的任 丙烯醛反应区。 本发明进一步更涉及一种方法，用于生产丙烯酸，吸水聚合物地层，化合物和卫生制品，以及用于实施这些方法的设备。
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3.发明公开
公开(公告)号：EP2061742A2
公开(公告)日：2009-05-27
申请号：EP07802811.5
申请日：2007-08-22
发明人： BUB, Günther , MOSLER, Jürgen , KUPPINGER, Franz-Felix , SABBAGH, Andreas , STOCHNIOL, Guido , SAUER, Jörg , WINTERBERG, Markus , KNIPPENBERG, Udo , LATOSCHINSKI, Günter , FURNO, Franck
IPC分类号： C07C45/52 , C07C51/25 , B01J8/02 , B01J19/00 , C08F2/20 , C08F20/06 , C08F120/06 , C08F220/06 , C08L33/02 , C09D133/02 , C07C47/22 , C07C57/04
CPC分类号： B01J19/2415 , B01J8/025 , B01J8/22 , B01J10/002 , B01J19/006 , B01J19/32 , B01J2208/00176 , B01J2208/0053 , B01J2219/0004 , B01J2219/00081 , B01J2219/00094 , B01J2219/00159 , B01J2219/00768 , B01J2219/185 , B01J2219/1943 , B01J2219/32279 , B01J2219/32286 , C07C45/52 , C07C51/252 , C08F2/00 , C08F2/20 , C08F220/06 , C07C47/22 , C07C57/04
摘要： The invention relates to a method comprising at least the following steps: a) glycerin is dehydrated so as to obtain a dehydrated product containing acrolein; b) the dehydrated product is subjected to gas phase oxidation so as to obtain a monomer gas containing acrylic acid; c) the monomer gas is contacted with a quenching agent so as to obtain a quench phase containing acrylic acid; d) the quench phase is reprocessed so as to obtain a monomer phase containing acrylic acid. A liquid phase (a1) and a gas phase (a2) are provided during the dehydration process, a plurality of gas bubbles being produced in the liquid phase (a1). The invention further relates to a method for producing polymers by polymerizing acrylic acid, preferably for producing water-absorbing polymers, the water-absorbing polymers obtained by means of said method, a compound, a method for producing a compound, the compound obtained by means of said method, and other chemical products.
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4.发明公开
公开(公告)号：EP2066611A1
公开(公告)日：2009-06-10
申请号：EP07802810.7
申请日：2007-08-22
CPC分类号： C08F120/06 , C07C51/377 , C07C51/43 , Y02P20/127 , C07C57/04
摘要： The invention relates to a process for preparing acrylic acid and to a process for preparing polyacrylic acid comprising the process steps of: a1) preparing 3-hydroxypropionic acid from a biological material to obtain a fluid, especially aqueous, phase comprising 3-hydroxypropionic acid; a2) dehydrating the 3-hydroxypropionic acid to obtain a fluid, especially aqueous, solution comprising acrylic acid, a3) purifying the solution comprising acrylic acid by a suspension crystallization or a layer crystallization to obtain a purified phase; and to appropriate apparatus for performing these processes, and also acrylic acid and polyacrylates. The invention is notable in that it is possible thereby, with simple means, to efficiently, inexpensively and sustainably prepare acrylic acid or polyacrylates with a high degree of purity based on renewable raw materials.
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5.发明公开
公开(公告)号：EP2364288A1
公开(公告)日：2011-09-14
申请号：EP09752784.0
申请日：2009-11-04
IPC分类号： C07C67/08 , C07C67/54 , C07C67/58 , C07C69/54 , C08F265/04
CPC分类号： C07C67/08 , C07C67/60 , C08F220/18 , C07C69/54
摘要： The invention relates to a method for producting a high-purity (meth)acrylic acid alkyl ester phase, comprising the process steps: I) reacting an alcohol phase with a (meth)acrylic acid phase in the presence of an esterification catalyst to obtain a (meth)acrylic acid alkyl ester phase; II) separating by distillation at least part of the water present in the (meth)acrylic acid alkyl ester phase to obtain an arid (meth)acrylic acid alkyl ester phase comprising the (meth)acrylic acid alkyl ester, and an aqueous overhead product; III) separating the aqueous overhead product into an organic phase and a process wastewater phase; IV) further purifying the arid (meth)acrylic acid alkyl ester phase comprising the (meth)acrylic acid alkyl ester by a purification method comprising an alkaline reactive extraction step to obtain - a purified (meth)acrylic acid alkyl ester phase and - a secondary component phase comprising an alkali salt; V) freeing the purified (meth)acrylic acid alkyl ester phase from additional secondary products to obtain a high-purity (meth)acrylic acid alkyl ester phase; wherein at least one of the following alternatives i) or ii), preferably i) and ii), applies; i) the secondary component phase comprising alkali salt is supplied to a combustion unit, wherein the secondary component phase comprising the alkali salt of the process wastewater phase is purified before being supplied to the combustion unit at a maximum of 50% by weight/hour, based on the volume of the secondary component phase comprising alkali salts developing in an hour; ii) the process wastewater phase is supplied for purification to a wastewater treatment system after separating at least part of the non-reacted alcohol still present in the process wastewater phase, wherein the process wastewater phase is purified, before being supplied to the wastewater treatment system at a maximum of 50% by weight/hour, based on the volume of process wastewater phase developing in hour, with the secondary component phase comprising the alkali salt. The invention also relates to the use of a process wastewater phase, a high-purity (meth)acrylic acid alkyl ester phase, to a method for producing a polymer based on (meth)acrylic acid alkyl esters, and to the (meth)acrylic acid alkyl ester-based polymer obtained by said method.
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6.发明公开HERSTELLUNG VON ACROLEIN, ACRYLSÄURE UND WASSERABSORBIERENDEN POLYMERGEBILDEN AUS GLYCERIN 审中-公开甘油生产丙烯醛，丙烯酸和水 - 聚合物结构
公开(公告)号：EP1893557A2
公开(公告)日：2008-03-05
申请号：EP06762065.8
申请日：2006-06-16
发明人： BUB, Günther , MOSLER, Jürgen , SABBAGH, Andreas , KUPPINGER, Franz-Felix , STOCHNIOL, Guido , SAUER, Jörg , LEISTNER, Jörg , LATOSCHINSKI, Günter , SCHWÄTZKE, Thorsten
IPC分类号： C07C45/52 , C07C51/25 , C08F220/06 , C08L33/02
CPC分类号： C07C45/52 , C07C51/252 , Y10T428/254 , Y10T428/31855 , C07C47/22 , C07C57/04
摘要： The invention relates to a method for production of acrolein, comprising at least the following steps: (a) introduction of an aqueous glycerine phase to an acrolein reaction volume to give an aqueous acrolein reaction phase, (b) stripping acrolein from the acrolein reaction phase to give an acrolein phase and a stripped acrolein reaction phase, (c) recycling of at least a part of the stripped acrolein reaction phase to the acrolein reaction volume. The invention further relates to a method for production of acrylic acid and water-absorbent polymer structures and composites, in particular, hygienic articles containing said water-absorbing polymer structure, a method for production of said composites and further chemical products based on the acrylic acid obtained by the above method and the use of said acrylic acid in chemical products.
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公开(公告)号：EP2280922A1
公开(公告)日：2011-02-09
申请号：EP09734255.4
申请日：2009-03-11
IPC分类号： C07C51/43
摘要： The present invention relates to a method for purifying an unpurified phase, containing a target product, preferably (meth)acrylic acid, water, and at least one contamination differing from the target product and from water, to obtain a purified phase, comprising a process stage comprising the following process steps: a) the target product and water are crystallized from the unpurified phase while forming a suspension containing a mother liquor and crystals, wherein said crystallizing is carried out at a temperature T
1 within the range of T
e - 15°C ≤ T
1 ≤ T
e + 3°C (T
e = eutectic temperature of the unpurified phase); b) the crystals are at least partially separated from the mother liquor; c) at least part of the separated crystals is melted to form a melt, wherein said melting is carried out at a temperature T
2 within the range of T
1 2 ≤ T
1 + 20°C; and d) at least part of the melt is returned to step b), wherein the part of the melt that is not returned is present as a purified phase. The invention further relates to a method for the production of a purified phase, containing a target product and water, a method for the production of a polymer based on (meth) acrylic acid, polymers that may be obtained by means of said method, chemical products, such as fibers or molded bodies, and the use of polymers.
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