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公开(公告)号：US10058795B2
公开(公告)日：2018-08-28
申请号：US14773697
申请日：2014-02-04
申请人： Sulzer Chemtech AG , Futerro S.A.
IPC分类号： B01D3/14 , C07D319/12 , B01D9/00 , B01D1/06 , B01D3/02
CPC分类号： B01D3/14 , B01D1/065 , B01D3/02 , B01D3/143 , B01D3/148 , B01D9/0031 , B01D9/004 , B01D2009/0086 , C07D319/12
摘要： The invention relates to a process for purification of a stream containing a cyclic ester of an alpha-hydroxycarboxylic acid of formula (I), wherein each R independently represents hydrogen or an aliphatic hydrocarbon having 1 to 6 carbon atoms comprising the steps of: (a) separating the cyclic ester-containing stream into one or more cyclic ester-containing vapor fractions and one or more cyclic ester-containing liquid fractions; (b) condensing a cyclic ester-containing vaporized fraction as obtained in step (a) to obtain a cyclic ester-containing condensate; (c) subjecting at least part of the cyclic ester-containing condensate as obtained in step (b) to melt crystallization to obtain a purified cyclic ester-containing stream and a residue stream; and (d) recovering the purified cyclic ester-containing stream as obtained in step (c). The invention further relates to an apparatus suitable for carrying out the present process.
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公开(公告)号：US09889390B2
公开(公告)日：2018-02-13
申请号：US14650926
申请日：2013-11-27
申请人： Sulzer Chemtech AG
发明人： Jörg Koch , Juan Ramon Herguijuela
CPC分类号： B01D11/043 , B01D11/0434 , B01D11/0457 , B01D11/0488 , B01D21/0039 , B01D21/10 , B01D2011/002 , B01F3/0873
摘要： A liquid-liquid extraction system (1) adapted for the flow of two or more liquids therein is disclosed. The system comprises a mixer settler sub-system (100) and a counter-current liquid-liquid extraction column (200). The sub-system (100) comprises one or more mixer settlers (110) connected in series, and the column (200) comprises either a mixing section (260) comprising an agitation means (261) and/or a static section (280) comprising an internal (281). The first outlet (131) of the mixer settler sub-system (100) is in fluid communication with the first inlet (221) of the column (200) and the second inlet (112) of the mixer settler sub-system (100) is in fluid communication with the second inlet (222) of the counter-current liquid-liquid extraction column (200). The invention further relates to a counter-current liquid-liquid extraction process for using said system 1. The present invention further relates also to the use of the system (5) or process in removing aromatic compounds from organic streams, in treating an oil stream of a refinery, or in a liquid-liquid extraction process having at least two feed streams of different viscosity, similar density, or low interfacial tension.
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公开(公告)号：US09751092B2
公开(公告)日：2017-09-05
申请号：US14370160
申请日：2013-01-02
申请人： Sulzer Chemtech AG
CPC分类号： B03C11/00 , B01D17/045 , B01D17/06 , B03C2201/02 , C02F1/46104 , C02F1/48 , C02F2101/325
摘要： The invention relates to a device for electrostatic coalescence of liquid particles in a flowing fluid mixture, comprising: a tube having an feed opening located at the front side of the tube and a discharge opening located on the opposite side of the tube and a least one arrangement with flow guide vanes arranged in the tube, positioned in between the opened infeed side and an opposite opened outfeed side, for reducing the turbulence or for imparting a rotating movement to the fluid mixture flowing through the tube. The invention also relates to a method for electrostatic coalescence of liquid particles in a flowing fluid mixture.
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44.发明申请公开(公告)号：US20170240700A1
公开(公告)日：2017-08-24
申请号：US15510917
申请日：2015-08-19
申请人： Sulzer Chemtech AG
摘要： A method for stabilizing a condensed phase composition in a process of manufacturing a polyester from cyclic ester monomer comprising the steps of devolatilizing a reaction mixture, which contains i) at least one polymerizable cyclic ester, ii) at least one catalyst and optionally at least one initiator, to produce a vapor stream and a molten residue, wherein the vapor stream includes mainly i) the at least one polymerizable cyclic ester and ii) the at least one catalyst and/or the at least one initiator and/or a reaction product or a residue of the at least one catalyst and/or the at least one initiator and condensing the vapor stream to form the condensed phase composition, wherein at least one polymerization inhibitor is added as stabilizer to the reaction mixture and/or to the condensed phase composition in an amount so that the degree of conversion of the polymerizable cyclic ester in the condensed phase composition is not more than 15%, wherein the degree of conversion is 100▪ (c0−CF)/c0, wherein c0 is the initial concentration of the cyclic ester in the condensed phase composition obtained by the condensation of the vapor stream and CF is the concentration of the cyclic ester in the condensed phase composition after addition of 150 ppm of tin octoate as catalyst and of 100 mmol/kg of ethyl-hexanol as initiator to the condensed phase composition and a subsequent heat treatment of condensed phase composition under inert atmosphere conditions for 12 hours at 160° C.
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公开(公告)号：US20170240697A1
公开(公告)日：2017-08-24
申请号：US15510859
申请日：2015-09-03
申请人： Sulzer Chemtech AG
摘要： A process of manufacturing a polyester from cyclic ester monomer comprises the steps of: a) providing a cyclic ester, b) polymerizing the cyclic ester in the presence of a catalyst and optionally an initiator in a reactor to form a reaction mixture comprising polyester and unreacted cyclic ester, wherein after the polymerization at least one polymerization inhibitor is added to the reaction mixture, wherein the polymerization inhibitor is selected from the group consisting of monoimines, diimines, mono alkyl phosphates according to the formula RPO4H2, wherein R is a C6-16 linear, branched or cyclic alkyl group, di alkyl phosphates according to the formula R2PO4H, wherein each R is independently a C6-16 linear, branched or cyclic alkyl group or a combination thereof, and phosphate esters according to the general formula (I) wherein at least one of R′, R″ and R″′ has the general structure as in general formula (II) wherein n>0 and Q is independently a C1-16 linear, branched or substituted alkyl group, and R is independently an H or linear, branched, cyclic or substituted alkyl group or a phenyl group derivative, and wherein any of R′, R″ and R″′ not having the general structure as in general formula (II) is independently an H or a linear, branched, cyclic or substituted alkyl group or a phenyl group derivative.
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公开(公告)号：US09700840B2
公开(公告)日：2017-07-11
申请号：US14415784
申请日：2013-04-23
申请人： Sulzer Chemtech AG
CPC分类号： B01D53/8668 , B01D53/1425 , B01D53/1493 , B01D53/96 , B01D2255/2022 , B01D2255/2027 , B01D2255/2045
摘要： A method for the removal of an ester (3′) from a vapor mixture (5′) containing the ester (3′) is disclosed. The method comprises the steps of by bringing the vapor (5) mixture (5′) into contact with an aqueous solution (6′) containing the acid (4′) corresponding to the ester (3′), wherein a portion of the ester (3′) is dissolved in or otherwise transferred to the aqueous solution (6′), and the aqueous solution (6′) is after the contact led in a circulation (73), the aqueous solution (6′) is processed in the circulation (73) in a process comprising: a heating step (240), a (10) reaction step (250) having a residence time and a temperature, a cooling step (260), wherein the heating step (240) precedes the reaction step (250), the reaction step (250) precedes the cooling step (260), and the residence time and the temperature in the reaction step (250) are sufficient to substantially reduce the content of the ester (3′) in the aqueous solution (6′). The invention further (15) relates to an apparatus (1) for carrying out said process. The present invention further relates also to the use of the apparatus (1) in the method of the invention, preferably in the production of a lactide (13′) or a polylactic acid polymer (12′).
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公开(公告)号：US09687759B2
公开(公告)日：2017-06-27
申请号：US14419571
申请日：2013-08-07
申请人： Sulzer Chemtech AG
CPC分类号： B01D19/0057 , B04C3/04 , B04C5/13
摘要： The invention relates to an apparatus for cyclone separation of a fluid flow into essentially a gas phase fraction and a liquid phase fraction, by bringing the fluid flow into rotation so that said fluid flow is separated into a central zone essentially containing the gas phase fraction, and an outer annular zone essentially containing the liquid phase fraction, comprising: a housing (2); a swirl element (6) for rotation of the fluid; a gas phase outlet (5); and a liquid phase outlet (4); whereby the gas phase outlet and the liquid phase outlet both connect to a common collecting chamber outside the housing. The invention also relates to a vessel provided with at least one such apparatus.
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48.发明申请A Method for Manufacturing Poly(2-Hydroxyalkanoic Acid), and the Poly(2-Hydroxyalkanoic Acid) Obtainable Thereby 有权制备聚（2-羟基链烷酸）的方法和由此获得的聚（2-羟基链烷酸）公开(公告)号：US20160159977A1
公开(公告)日：2016-06-09
申请号：US14907910
申请日：2014-02-11
CPC分类号： C08G63/823 , C08G63/08 , C08G63/78 , C08G63/912
摘要： A method for manufacturing poly(2-hydroxyalkanoic acid), preferably a poly(lactic acid), is disclosed. The method comprises the steps of: mixing a cyclic diester of a 2-hydroxyalkanoic acid and a polymerization catalyst, polymerizing the cyclic diester to form poly(2-hydroxyalkanoic acid) in liquid phase, adding a peroxide-based compound as a catalyst deactivating agent to the liquid phase, applying a devolatilisation step to the liquid phase, and allowing the poly(2-hydroxyalkanoic acid) to solidify, characterized in that an end-capping agent is added to the poly(2-hydroxyalkanoic acid) in the liquid phase. The present invention also relates to a poly(2-hydroxyalkanoic acid), preferably a poly(lactic acid), obtainable with said method characterized in that the polymer has a Mn abs ranging between 10000 and 250000 g/mol, preferably between 20000 and 85000 g/mol.
摘要翻译： 公开了一种制备聚（2-羟基链烷酸）的方法，优选聚（乳酸）。 该方法包括以下步骤：将2-羟基链烷酸的环状二酯和聚合催化剂混合，使环状二酯聚合形成液相中的聚（2-羟基链烷酸），加入过氧化物类化合物作为催化剂减活剂 向液相施加脱挥发分步骤至液相，并使聚（2-羟基链烷酸）固化，其特征在于在液相中向聚（2-羟基链烷酸）中加入封端剂 。 本发明还涉及通过所述方法获得的聚（2-羟基链烷酸），优选聚（乳酸），其特征在于聚合物的Mn abs范围在10000至250000g / mol之间，优选在20000至85000之间 g / mol。
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公开(公告)号：US20160121297A1
公开(公告)日：2016-05-05
申请号：US14894723
申请日：2014-05-30
申请人： SULZER CHEMTECH AG
发明人： Marc Wehrli
IPC分类号： B01J19/32
CPC分类号： B01J19/32 , B01J2219/3221 , B01J2219/32213 , B01J2219/32227 , B01J2219/32237 , B01J2219/32248 , B01J2219/32251 , B01J2219/32408 , B01J2219/32425 , B01J2219/32483 , F28F25/087
摘要： The invention relates to a packing layer (1) for structured packing (20), the packing layer (1) comprising a plurality of structural elements (2), and the structural elements (2) being shaped and arranged in such a manner that they form a first fine structure (3), and adjacent structural elements (2) having a first spacing (a), the packing layer (1) comprising a plurality of protrusions (4) that are shaped and arranged in such a manner that they form a second fine structure (5), and adjacent protrusions (4) having a second spacing (b). According to the invention, the structural elements (2) and the protrusions (4) are formed without perforations.
摘要翻译： 本发明涉及一种用于规整填料（20）的填料层（1），所述填料层（1）包括多个结构元件（2），所述结构元件（2）的形状和布置方式使得它们 形成第一精细结构（3）和具有第一间隔（a）的相邻结构元件（2），所述包装层（1）包括多个突起（4），所述多个突起（4）以形成和布置的方式形成 第二精细结构（5）和具有第二间距（b）的相邻突起（4）。 根据本发明，结构元件（2）和突起（4）形成为没有穿孔。
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50.发明申请Process and Apparatus for Purification of a Stream Containing a Cyclic Ester of an Alpha-Hydroxycarboxylic Acid 审中-公开用于纯化含有α-羟基羧酸的环酯的流程和装置公开(公告)号：US20160024043A1
公开(公告)日：2016-01-28
申请号：US14773697
申请日：2014-02-04
申请人： SULZER CHEMTECH AG , FUTERRO S.A.
IPC分类号： C07D319/12 , B01D3/14 , B01D9/00 , B01D3/02
CPC分类号： B01D3/14 , B01D1/065 , B01D3/02 , B01D3/143 , B01D3/148 , B01D9/0031 , B01D9/004 , B01D2009/0086 , C07D319/12
摘要： The invention relates to a process for purification of a stream containing a cyclic ester of an alpha-hydroxycarboxylic acid of formula (I), wherein each R independently represents hydrogen or an aliphatic hydrocarbon having 1 to 6 carbon atoms comprising the steps of: (a) separating the cyclic ester-containing stream into one or more cyclic ester-containing vapour fractions and one or more cyclic ester-containing liquid fractions; (b) condensing a cyclic ester-containing vaporized fraction as obtained in step (a) to obtain a cyclic ester-containing condensate; (c) subjecting at least part of the cyclic ester-containing condensate as obtained in step (b) to melt crystallization to obtain a purified cyclic ester-containing stream and a residue stream; and (d) recovering the purified cyclic ester-containing stream as obtained in step (c). The invention further relates to an apparatus suitable for carrying out the present process.
摘要翻译： 本发明涉及纯化包含式（I）的α-羟基羧酸的环状酯的流的方法，其中每个R独立地表示氢或具有1至6个碳原子的脂族烃，包括以下步骤：（a ）将含环酯的物流分离成一种或多种含环状酯的蒸气馏分和一种或多种含环状酯的液体馏分; （b）使步骤（a）中得到的含环状酯的蒸发馏分冷凝，得到含环状酯的缩合物; （c）使步骤（b）中获得的至少部分含环状酯的缩合物熔融结晶以获得纯化的含环状酯的流和残余物流; 和（d）回收步骤（c）中获得的纯化的含环状物流。 本发明还涉及一种适合于执行本方法的装置。
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