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1.发明申请Process for Recovering Aliphatic Monocarboxylic Acids from Distillation Residues 有权从蒸馏残渣中回收脂肪族单羧酸的方法公开(公告)号：US20140303401A1
公开(公告)日：2014-10-09
申请号：US14358239
申请日：2012-11-20
申请人： Oxea GmbH
发明人： Guido D. Frey , Jörg Arnold , Wolfgang Höfs , Matthias Kramer , Thomas Müller , Heinz Strutz
IPC分类号： C07C51/50
CPC分类号： C07C51/50 , C07C51/02 , C07C51/235 , C07C51/44 , C07C51/48 , C07C53/128 , C07C53/126
摘要： A process is provided for recovering aliphatic monocarboxylic acids having from 4 to 11 carbon atoms from the distillation residue obtained in the oxidation of the corresponding aldehyde by means of oxygen or oxygen-containing gas mixtures in the presence of alkali metal carboxylates or alkaline earth metal carboxylates to form the corresponding monocarboxylic acid and subsequent distillation, characterized in that the distillation residue is reacted with an aqueous acid in a tube reactor and the two-phase mixture flowing out from the tube reactor is introduced into a settling vessel in which the organic phase which separates out has a pH of 4.5 or less.
摘要翻译： 提供了一种方法，用于在碱金属羧酸盐或碱土金属羧酸盐存在下，通过氧或含氧气体混合物从相应醛氧化得到的蒸馏残余物中回收具有4至11个碳原子的脂肪族单羧酸 以形成相应的一元羧酸并随后蒸馏，其特征在于蒸馏残余物与管式反应器中的含水酸反应，从管式反应器流出的两相混合物被引入沉降容器中，其中有机相 分离出的pH值在4.5以下。
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公开(公告)号：US09388115B2
公开(公告)日：2016-07-12
申请号：US15008498
申请日：2016-01-28
申请人： Oxea GmbH
发明人： Guido D. Frey , Tonia Weber , Jörg Arnold , Thorsten Kreickmann , Heinz Strutz
IPC分类号： C07C67/08
摘要： A process for preparing polyol esters by reacting polyols with linear or branched aliphatic monocarboxylic acids having 3 to 20 carbon atoms, is characterized in that a mixture of the starting compounds is allowed to react in the presence of a Lewis acid containing at least one element of groups 4 to 14 of the periodic table of the elements as a catalyst and in the presence of an adsorbent with removal of the water formed, and then the crude ester obtained is aftertreated by adding a further adsorbent which is an acidic activated carbon having a pH of 1 to 6.5.
摘要翻译： 多元醇与碳原子数为3〜20的直链或支链脂族一元羧酸反应制备多元醇酯的方法，其特征在于使起始化合物的混合物在含有至少一种元素的路易斯酸 作为催化剂的元素周期表的4至14族，并且在除去所形成的水的吸附剂存在下，然后通过加入另外的吸附剂进行后处理，所述吸附剂是具有pH的酸性活性炭 为1〜6.5。
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公开(公告)号：US09284253B2
公开(公告)日：2016-03-15
申请号：US14427742
申请日：2013-08-10
申请人： Oxea GmbH
发明人： Guido D. Frey , Tonia Weber , Jörg Arnold , Thorsten Kreickmann , Heinz Strutz
IPC分类号： C07C67/08
摘要： A process for preparing polyol esters by reacting polyols with linear or branched aliphatic monocarboxylic acids having 3 to 20 carbon atoms, is characterized in that a mixture of the starting compounds is allowed to react in the presence of a Lewis acid containing at least one element of groups 4 to 14 of the periodic table of the elements as a catalyst and in the presence of an adsorbent with removal of the water formed, and then the crude ester obtained is aftertreated by adding a further adsorbent which is an acidic activated carbon having a pH of 1 to 6.5.
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公开(公告)号：US09580378B2
公开(公告)日：2017-02-28
申请号：US14915448
申请日：2014-08-29
申请人： Oxea GmbH
摘要： A batchwise process for aftertreatment of polyol esters prepared by reacting polyols of the general formula (II) H—(—O—[—CR1R2—]m—)o—OH (II) in which R1 and R2 are each independently hydrogen, an alkyl radical having 1 to 5 carbon atoms, preferably methyl, ethyl or propyl, or a hydroxyalkyl radical having 1 to 5 carbon atoms, preferably the hydroxymethyl radical, m is an integer from 1 to 10, preferably 1 to 8 and especially 1, 2, 3 or 4, o is an integer from 2 to 15, preferably 2 to 8 and especially 2, 3, 4 or 5, with excess linear or branched aliphatic monocarboxylic acids having 3 to 20 carbon atoms and having a lower boiling point than the polyols used. The process is carried out in the presence of a Lewis acid and in the presence of an adsorbent, while removing the water formed, characterized in that the excess monocarboxylic acid is removed by distillation and water is added to the crude ester obtained at a temperature below the boiling point of water at the particular pressure and the crude ester with added water is aftertreated with avoidance of basic compounds, and the sparingly soluble conversion products and the adsorbent present in the esterification reaction are filtered off.
摘要翻译： 用于后处理多元醇酯的分批方法，其通过使通式（II）的多元醇H - （ - O - [ - CR 1 R 2 - ] m - ）o-OH（II）反应制备，其中R 1和R 2各自独立地为氢， 具有1至5个碳原子的烷基，优选甲基，乙基或丙基，或具有1至5个碳原子的羟烷基，优选羟甲基，m为1至10，优选1至8，特别是1,2 ，3或4，o是2至15，优选2至8，特别是2，4或5的整数，其中具有3至20个碳原子并具有比其低的沸点的过量的直链或支链脂肪族单羧酸 使用多元醇 该方法在路易斯酸存在下并且在吸附剂存在下进行，同时除去形成的水，其特征在于通过蒸馏除去过量的单羧酸，并将水加入到在低于 在特定压力下的水的沸点和加入水的粗酯进行后处理，避免碱性化合物，并且滤出酯化反应中存在的微溶的转化产物和吸附剂。
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公开(公告)号：US09018417B2
公开(公告)日：2015-04-28
申请号：US14358239
申请日：2012-11-20
申请人： Oxea GmbH
发明人： Guido D. Frey , Jörg Arnold , Wolfgang Höfs , Matthias Kramer , Thomas Müller , Heinz Strutz
IPC分类号： C07C51/50 , C07C51/02 , C07C51/235 , C07C51/44 , C07C51/48
CPC分类号： C07C51/50 , C07C51/02 , C07C51/235 , C07C51/44 , C07C51/48 , C07C53/128 , C07C53/126
摘要： A process is provided for recovering aliphatic monocarboxylic acids having from 4 to 11 carbon atoms from the distillation residue obtained in the oxidation of the corresponding aldehyde by means of oxygen or oxygen-containing gas mixtures in the presence of alkali metal carboxylates or alkaline earth metal carboxylates to form the corresponding monocarboxylic acid and subsequent distillation, characterized in that the distillation residue is reacted with an aqueous acid in a tube reactor and the two-phase mixture flowing out from the tube reactor is introduced into a settling vessel in which the organic phase which separates out has a pH of 4.5 or less.
摘要翻译： 提供了一种方法，用于在碱金属羧酸盐或碱土金属羧酸盐存在下，通过氧或含氧气体混合物从相应醛氧化得到的蒸馏残余物中回收具有4至11个碳原子的脂肪族单羧酸 形成相应的一元羧酸并随后蒸馏，其特征在于蒸馏残余物与管式反应器中的含水酸反应，从管式反应器流出的两相混合物被引入沉降容器中，其中有机相 分离出的pH值在4.5以下。
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公开(公告)号：US09840454B2
公开(公告)日：2017-12-12
申请号：US14915915
申请日：2014-10-09
申请人： Oxea GmbH
摘要： A process for obtaining product streams enriched with polyol esters from the secondary streams from polyol ester preparation, comprising a) the reaction of polyols of the general formula (II) H—(—O—[—CR1R2—]m—)o—OH (II) in which R1 and R2 are each independently hydrogen, an alkyl radical having 1 to 5 carbon atoms or a hydroxyalkyl radical having 1 to 5 carbon atoms, m is an integer from 1 to 10, o is an integer from 2 to 15, with linear or branched aliphatic monocarboxylic acids having 3 to 20 carbon atom, with removal of the water formed; b) the removal of unconverted starting compounds from the crude ester formed; c) the treatment of the crude ester obtained in step b) with steam to form a volatile secondary stream; and d) the removal of the volatile secondary stream obtained in step c), characterized in that the volatile secondary stream obtained in step d) is separated into an aqueous phase and an organic phase and the organic phase removed is subjected to a further treatment with steam and a product stream enriched with polyol esters is obtained as residue.
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