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1. 发明授权

EP3201167B1 VERFAHREN UND ANLAGE ZUR RÜCKGEWINNUNG VON ACRYLSÄURE 有权
公开(公告)号：EP3201167B1
公开(公告)日：2020-08-05
申请号：EP15775409.4
申请日：2015-09-23
申请人： BASF SE
发明人： HAMMON, Ulrich , WALTER, Thomas , OTTENBACHER, Markus , HÜTTEN, Frank
IPC分类号： B01D3/34 , C07C51/48 , C07C51/44 , C07C51/42 , C07C57/04

2. 发明公开

EP2714641A1 WÄSSRIGE LÖSUNG, ENTHALTEND ACRYLSÄURE UND DEREN KONJUGIERTE BASE 审中-公开
标题翻译： KENJUGIERTE基地的RÄSRIGELÖSUNG，ENTHALTEND ACRYLSUREURE
公开(公告)号：EP2714641A1
公开(公告)日：2014-04-09
申请号：EP12724618.9
申请日：2012-05-30
申请人： BASF SE
发明人： HÜTTEN, Frank , MACHHAMMER, Otto , DANIEL, Thomas , OTTENBACHER, Markus , PFEIFFER, Daniel , HERZOG, Stefanie , HEILIG, Manfred , MÜLLER-ENGEL, Klaus Joachim
IPC分类号： C07C51/25 , C07C51/42 , C07C57/04
CPC分类号： C08G63/81 , C07C51/252 , C07C51/42 , C07C51/47 , C07C57/04 , Y02P20/582
摘要： An aqueous solution comprising acrylic acid and the conjugate base thereof in a total amount, calculated as acrylic acid, of at least 10% by weight, based on the weight of the aqueous solution, and, based on the total amount of acrylic acid and the conjugate base thereof present in the aqueous solution, calculated as acrylic acid, ≥ 50 ppm by weight in total of propionic acid and the conjugate base thereof, calculated as propionic acid, ≥ 200 ppm by weight in total of formic acid and the conjugate base thereof, calculated as formic acid, ≥ 3000 ppm by weight in total of acetic acid and the conjugate base thereof, calculated as acetic acid, ≤ 10 ppm by weight in total of benzoic acid and the conjugate base thereof, calculated as benzoic acid, ≤ 10 ppm by weight in total of maleic anhydride, maleic acid and the conjugate bases thereof, calculated as maleic acid, ≤ 10 ppm by weight in total of phthalic anhydride, phthalic acid and the conjugate bases thereof, calculated as phthalic acid, 50 ppm by weight of acrolein, 50 ppm by weight of benzaldehyde, 50 ppm by weight of 2-furaldehyde, and at least 20 mol% of at least one alkali metal cation, process for preparing this solution and the use of this solution for preparation of polymer by free-radical polymerization.
摘要翻译：包含丙烯酸及其共轭碱的水溶液的总量为水溶液重量的至少10重量％，丙酸及其共轭碱，甲酸及其共轭碱，乙酸酸及其共轭碱，苯甲酸及其共轭碱，马来酸酐，马来酸及其共轭碱，邻苯二甲酸酐，邻苯二甲酸及其共轭碱，丙烯醛，苯甲醛，2-糠醛，和至少20摩尔％的至少一种碱金属阳离子; 制备该溶液的方法; 以及使用该溶液通过自由基聚合制备聚合物。

3. 发明公开

EP3201167A1 VERFAHREN UND ANLAGE ZUR RÜCKGEWINNUNG VON ACRYLSÄURE 有权
标题翻译： VERFAHREN UND ANLAGE ZURRÜCKGEWINNUNGVONACRYLSÄURE
公开(公告)号：EP3201167A1
公开(公告)日：2017-08-09
申请号：EP15775409.4
申请日：2015-09-23
申请人： BASF SE
发明人： HAMMON, Ulrich , WALTER, Thomas , OTTENBACHER, Markus , HÜTTEN, Frank
IPC分类号： C07C51/42 , C07C51/44 , C07C57/04
摘要： The invention relates to a method for recovering acrylic acid, having the following steps a) separating a temperature-controlled mother acid stream from a crystallization device in the direction of an absorption column (201) and in the direction of a splitting column (205), b) supplying the first temperature-controlled mother acid sub-stream as a return flow to the top plate of the splitting column (205), c) supplying at least one strip gas stream below the bottom plate of the splitting column (205), d) supplying an auxiliary component stream, which comprises an oligomeric acrylic acid, from the condensation column (201) to a central base of the splitting column (205), e) splitting at least one part of the oligomeric acrylic acid from the auxiliary component stream in the splitting column (205), thereby obtaining monomeric acrylic acid, f) separating the auxiliary components contained in the auxiliary component stream by means of a counter-current rectification process in the splitting column (205), g) discharging the monomeric acrylic acid without condensation as a gas mixture together with the supplied strip circuit gas stream at the head of the splitting column (205), and h) supplying the gas mixture below the bottom plate of the condensation column (201). The invention further relates to a system (1) for recovering acrylic acid.
摘要翻译：一种回收丙烯酸的方法，包括：a）在吸收方向上将加热的母酸物流分成冷凝塔和分离塔; b）将经加热的母酸分子流作为回流供给到解离柱; c）将至少一个汽提气流输入到解离塔中; d）将包含低聚丙烯酸的次要组分料流从吸收塔加入到解离塔中; e）在解离塔中解离部分低聚丙烯酸以产生单体丙烯酸; f）去除包含在解离塔中的次要组分流中的次要组分; g）将单体丙烯酸作为气体混合物与来自解离塔的引入循环汽提气流一起排出; 和h）将气体混合物输入吸收塔。

4. 发明公开

EP2827961A1 THERMISCHES TRENNVERFAHREN 审中-公开
标题翻译：热分离
公开(公告)号：EP2827961A1
公开(公告)日：2015-01-28
申请号：EP13707397.9
申请日：2013-03-05
申请人： BASF SE
发明人： MÜLLER-ENGEL, Klaus Joachim , WALTER, Thomas , HÜTTEN, Frank , OTTENBACHER, Markus , HAMMON, Ulrich
IPC分类号： B01D3/16
CPC分类号： B01J19/32 , B01D3/16 , B01D3/225 , B01F3/0446 , B01J2219/322 , B01J2219/3327 , C07C51/42 , C07C67/48 , C07C57/04 , C07C69/54
摘要： A thermal separating method between a gas rising in a separation column and a liquid, containing (meth)acrylic monomers, descending in the separation column, wherein the separation column contains a sequence of cross-current material exchange trays, the cross-current material exchange trays of which have passage openings for the rising gas both upstream and downstream, in the direction of the cross current, of an outlet shaft for the descending liquid, as well as such cross-current material exchange trays, and a sequence of cross-current material exchange trays contained in a separation column.

5. 发明公开

EP2616427A1 VERFAHREN ZUR HERSTELLUNG VON ACRYSLÄURE AUS ETHANOL UND FORMALDEHYD 审中-公开
标题翻译： VERFAHREN ZUR HERSTELLUNG VONACRYSLÄUREAUS ETHANOL UND FORMALDEHYD
公开(公告)号：EP2616427A1
公开(公告)日：2013-07-24
申请号：EP11758439.1
申请日：2011-09-13
申请人： BASF SE
发明人： HERZOG, Stefanie , ALTWASSER, Stefan , OTTENBACHER, Markus , HÜTTEN, Frank , WENTINK, Annebart, Engbert , SCHÄFER, Alexander
IPC分类号： C07C51/373 , C07C51/377 , C07C57/04
CPC分类号： C07C57/04 , C07B2200/05 , C07C51/235 , C07C51/353 , C07C53/08
摘要： The invention relates to a method for producing acrylic acid from ethanol and formaldehyde, in which method the ethanol is partially oxidised to obtain acetic acid in a heterogeneously catalysed gas-phase reaction in a reaction zone A, a reaction gas entry mixture B that contains acetic acid and formaldehyde being produced with the product mixture A that has been obtained, and a formaldehyde source, said entry mixture B having a greater amount of acetic acid than of formaldehyde, and the formaldehyde contained in the reaction gas entry mixture B is heterogeneously catalysed with the acetic acid contained in reaction gas entry mixture B in a reaction zone B to obtain acrylic acid, and aldol condensed, and acetic acid that is still contained and not reacted in the product gas mixture B which has been obtained, besides the target product of acrylic acid, is separated from product gas mixture B, this separated acetic acid then being fed back into the production of the reaction gas entry mixture B.
摘要翻译：一种从乙醇和甲醛制备丙烯酸的方法，其中在反应区A中乙醇在非均相催化的气相反应中部分氧化成乙酸，得到的产物气体混合物A和甲醛源用于获得反应气体输入混合物B，其包含乙酸和甲醛，并且乙酸超过甲醛，反应气体输入混合物B中存在的甲醛与反应气体输入混合物B中存在的乙酸醛醛缩合成丙烯酸在反应区B中的非均相催化下，除去所得产物气体混合物B中仍然存在丙烯酸目标产物的未转化乙酸，并将除去的乙酸再循环到反应气体输入混合物B 。

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