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    • 51. 发明申请
    • METHOD FOR THE MANUFACTURE OF A POLYHYDROXY-CARBOXYLIC ACID
    • 制备聚羟基羧酸的方法
    • WO2012110117A1
    • 2012-08-23
    • PCT/EP2011/070168
    • 2011-11-15
    • SULZER CHEMTECH AGSTEPANSKI, ManfredLOVIAT, FrançoisKUSZLIK, Andrzej
    • STEPANSKI, ManfredLOVIAT, FrançoisKUSZLIK, Andrzej
    • B01D7/00B01D7/02B01D9/00B01D9/02B01D9/04C07D319/12C08G63/08
    • C08G63/08B01D3/10B01D9/0013B01D9/0045B01D19/0036C07D319/12C08F124/00C08G63/78C08G63/785C08G63/90C08L67/04
    • Disclosed is a method to prepare a polylactic acid comprising the steps of performing a ring opening polymerization using a catalyst and either a catalyst killer compound or an endcapping additive to obtain a raw polylactic acid of MW greater than 10,000 g/mol, purifying the raw polylactic acid by removing and separating low boiling compounds comprising lactide and impurities from the raw polylactic acid by devolatization of the low boiling compounds as a gas phase stream, and purifying the lactide from the devolatization and removing the impurities from the gas phase stream of evaporated low boiling compounds by means of crystallization by desublimation from the gas phase, wherein the lactide is purified and the removed impurities include a catalyst residue and a compound containing at least one hydroxyl group such that the purified lactide is then polymerized by feeding it back into the ring opening polymerization. The invention further relates to an apparatus for carrying out the method comprising a polymerization reactor for performing a ring opening polymerization to obtain a raw polylactic acid, a devolatization apparatus for separating low boiling compounds comprising lactide and impurities from a raw polylactic acid, and a crystallization apparatus for purifying a lactide and removing impurities by means of a desublimation and a crystallization in the same crystallization apparatus.
    • 公开了一种制备聚乳酸的方法,其包括以下步骤:使用催化剂和催化剂杀菌化合物或封端添加剂进行开环聚合,得到MW大于10,000g / mol的原始聚乳酸,纯化原料聚乳酸 通过将作为气相物流的低沸点化合物脱挥发分,从原料聚乳酸中除去和分离包含丙交酯和杂质的低沸点化合物,并从脱挥发分纯化丙交酯,并从蒸发的低沸点气相物流中除去杂质 化合物通过从气相中进行结晶化而得到,其中丙交酯被纯化,并且除去的杂质包括催化剂残余物和含有至少一个羟基的化合物,使得纯化的丙交酯通过将其送回到开环中而聚合 聚合。 本发明还涉及一种用于进行包括聚合反应器进行开环聚合以获得原始聚乳酸的方法的设备,用于从原始聚乳酸中分离包含丙交酯和杂质的低沸点化合物的脱挥发分装置和结晶 用于纯化丙交酯并通过在相同的结晶装置中进行凝胶化和结晶去除杂质的装置。
    • 52. 发明申请
    • TROPFENABSCHEIDER
    • DRIFT
    • WO2012041665A1
    • 2012-04-05
    • PCT/EP2011/065386
    • 2011-09-06
    • SULZER CHEMTECH AGGÄBLER, Ansor
    • GÄBLER, Ansor
    • B01D45/08
    • B01D45/08B01D45/06B01D45/12B01D50/002B29C65/00
    • Ein Tropfenabscheider (10) umfasst einen Strömungskanal (5), durch welchen ein tröpfchenbeladenes Gas hindurch leitbar ist und entlang einer Hauptströmungsrichtung (6) von diesem tröpfchenbeladenen Gas durchströmbar ist, wobei ein Abscheideelement (8) im wesentlichen ringförmig um den Strömungskanal (5) angeordnet ist, welches von einer vom Strömungskanal (5) weggerichteten Ringströmung durchströmbar ist. Das Abscheideelement (8) weist ein Bodenelement (11) und ein Deckenelement (12) sowie eine Mehrzahl von Verbindungselementen (1) auf, welche zwischen dem Bodenelement (11) und dem Deckenelement (12) derart angeordnet sind, dass das Bodenelement (11) und das Deckenelement (12) in einem Abstand zueinander angeordnet sind, welcher durch die Verbindungselemente (1) festgelegt ist. Das Verbindungselement (1) umfasst ein Wandelement (3, 13, 30), entlang dessen Tröpfchen des tröpfchenbeladenen Gases in Richtung der Bodenelements (11) als Film leitbar sind, wobei das Wandelement (3, 13, 30) eine Abscheideoberfläche aufweist, welche eine mittlere Breite von mehr als 1 mm aufweist. Das Abscheideelement (8) enthält ein Ringelement (17), welches im wesentlichen ringförmig um den Strömungskanal (5) angeordnet ist und eine innere Mantelfläche aufweist, die im wesentlichen den Durchmesser des Strömungskanals (5) hat und Durchtrittsöffnungen für den Eintritt des tröpfchenbeladenen Gases in das Ringelement vorgesehen sind.
    • 液滴分离器(10)包括(5),通过该液滴含尘气体穿过其可沿着主流动方向被传递(6)的该液滴载货气体可以流动,被设置在分离器的流动通道(8)是基本上环形围绕所述流动通道(5) 是,被引导从流动管道的一个远(5)环状流可以流动。 分离器元件(8)具有设置在底部元件(11)和天花板元件(12)和多个连接元件(1),其是底部元件(11)和天花板元件(12)之间,使得所述底部元件(11) 与天花板元件(12)被布置在由所述连接元件(1)被固定定义的相互距离。 所述连接元件(1)包括壁元件(3,13,30)沿着其在地板元件的方向的液滴含尘气体的液滴(11),其为膜,来进行,其中具有具有沉积表面的壁构件(3,13,30) 具有大于1mm平均宽度。 分离器元件(8),包括被布置成基本上环形围绕所述流动通道中的环形部件(17)(5)以及具有内周表面,其具有流动通道的大致直径(5)和通道,用于液滴的条目含尘气体在开口 设置在环部件。
    • 54. 发明申请
    • TRAY APPARATUS, COLUMN WITH SAME AND METHOD OF ASSEMBLING AND USING
    • 托盘装置,具有相同的柱和组装和使用的方法
    • WO2004071636A2
    • 2004-08-26
    • PCT/US2004/003201
    • 2004-02-05
    • SULZER CHEMTECH AGPILLING, Mark, W.FISCHER, Markus
    • PILLING, Mark, W.FISCHER, Markus
    • B01F3/04
    • B01D3/20B01D3/22
    • A vapor-liquid contact tray apparatus having a tray with a fluid infeed section and a fluid travel section together with a supported downcomer which is in fluid communication with the fluid travel section of the tray. A redirecting baffle is positioned at an inlet opening of the downcomer and push valves are provided in the fluid travel section of the tray. The push valves are preferably arranged in one or more zones of high concentration of push valves relative to one or more bubbling aperture zones with a lower concentration of push valves or no push valves. The redirecting baffle is provided in the downcomer and extends above the tray to capture fluid flowing horizontally off of the tray (e.g., exiting from a weirless or weir interface) and into a preferably concave upper portion of the redirecting baffle for controlling and redirecting the high momentum flow into and through the downcomer. A plurality of redirecting baffles are featured in one embodiment together with apertured straight sections extending down into the downcomer as in down to the half way mark of downcomer depth or further down including out of the bottom of downcomer.
    • 一种气液接触托盘装置,具有具有流体进料段的托盘和流体传送部分以及与托盘的流体传送部分流体连通的支撑的降液管。 重定向挡板位于降液管的入口处,并且推动阀设置在托盘的流体移动部分中。 推动阀优选地布置在相对于一个或多个具有较低浓度的推动阀或不推动阀的一个或多个鼓泡孔区域的高浓度推压阀的一个或多个区域中。 重定向挡板设置在降液管中并且在托盘上方延伸以捕获水平地离开托盘的流体(例如,从无堰或堰界面离开)并且进入重定向挡板的优选凹入的上部,用于控制和重定向高 动量流入并通过降液管。 在一个实施例中,多个重定向挡板的特征在于向下延伸到降液管中的有孔直的部分,直到下降管深度的下半部标记或进一步向下包括在降液管的底部之外。
    • 56. 发明申请
    • DEVICE FOR HOMOGENISING HIGHLY VISCOUS FLUIDS
    • 设备用于均高粘度流体
    • WO1995009689A1
    • 1995-04-13
    • PCT/CH1994000195
    • 1994-09-30
    • SULZER CHEMTECH AGSIGNER, Arno
    • SULZER CHEMTECH AG
    • B01F05/06
    • B29C45/581B01F5/0618B01F2005/0639B29C47/362
    • A device for homogenising highly viscous fluids has static mixing elements (11, 12) and if required filtering elements (6). These elements of the device are arranged in a sleeve (13) along the axis (15) of the sleeve. The sleeve is made of several parts and the elements that make up the device are monolithic components (10, 20; 60). Many or all components have flange- or nose-like parts (4; 4a, 4b) with which they are anchored in the area of the sleeve located between the parts that make up the sleeve and at the same time form parts of the sleeve. This device is suitable for example as mixing head (1) in the nozzle of an injection casting machine or as molten mass mixer in an extruder.
    • 用于高粘度流体的均匀化装置包括静态混合元件(11,12)和任选的过滤器元件(6)。 该装置元件沿着在一个套筒(13)的套筒轴线(15)布置。 根据本发明,套筒被构造几个部分; 所述器件元件是单片部件(10,20; 60),其中所有的或具有多种这些成分凸缘或鼻状部分(4; 4A,4B)。 与这些游戏的组件的访问锚定到在套筒的同一时间部分套筒部件和形式之间的套筒部分。 本发明的装置提供,例如,如在注塑成型机的喷嘴或作为熔体混合器挤出机的混合头(1)。
    • 59. 发明申请
    • SEMI-CONTINUOUS CRYSTALLIZATION METHOD AND APPARATUS
    • 半连续结晶方法和装置
    • WO2016207056A1
    • 2016-12-29
    • PCT/EP2016/063889
    • 2016-06-16
    • SULZER CHEMTECH AG
    • PFEIL, MathiasSTEPANSKI, Manfred
    • B01D9/00C07B63/00C07C7/14C07C51/43
    • C07B63/00B01D9/0013B01D9/004B01D2009/0086C07C7/14C07C51/43C07C15/08C07C15/02C07C59/08
    • A process for the separation of a substance from a liquid feed mixture and for the purification of the substance by fractional layer crystallization, wherein the liquid feed mixture comprises the substance to be separated and purified in a concentration of less than 50 % by weight, which comprises the subsequent steps in the given order: (a) feeding the liquid feed mixture into a crystallization zone, in which at least one surface is provided, so that at least a part of the surface contacts the liquid feed mixture, (b) cooling the at least one surface of the crystallization zone to a temperature below the equilibrium freezing temperature of the liquid feed mixture so that a crystal layer enriched in the substance to be separated and purified is deposited on the at least one cooled surface, whereby a mother liquid having a lower concentration of the substance to be separated and purified than the liquid feed mixture is formed from the liquid feed mixture, (c) removing at least a portion of the mother liquid from the crystallization zone, (d) adding a further portion of liquid feed mixture into the crystallization zone, (e) allowing further deposition of a crystal layer enriched in the substance to be separated and purified to take place on the at least one cooled surface, (f) optionally carrying out a sweating stage and removing a sweating residue and (g) melting the crystal layer to obtain the separated and purified substance.
    • 一种用于从液体进料混合物中分离物质和通过分层结晶纯化物质的方法,其中液体进料混合物包含浓度低于50重量%的分离和纯化物质,其中 包括按照给定顺序的后续步骤:(a)将液体进料混合物进料到其中提供至少一个表面的结晶区,使得表面的至少一部分与液体进料混合物接触,(b)冷却 所述结晶区的所述至少一个表面的温度低于所述液体进料混合物的平衡冷冻温度,使得富集待分离和纯化的物质的结晶层沉积在所述至少一个冷却表面上,由此母液 具有比液体进料混合物要分离和纯化的物质浓度低的液体进料混合物形成的浓度较低,(c)除去至少一部分 的母液,(d)将另外部分的液体进料混合物加入结晶区,(e)允许进一步沉积富集待分离和纯化的物质的晶体层,以在其上发生 至少一个冷却表面,(f)任选地进行出汗阶段并除去出汗残留物,和(g)熔化晶体层以获得分离和纯化的物质。
    • 60. 发明申请
    • A CONTINUOUS METHOD FOR MANUFACTURING A POLYESTER FROM CYCLIC ESTER MONOMER
    • 一种从循环单体制造聚酯的连续方法
    • WO2016041782A1
    • 2016-03-24
    • PCT/EP2015/070163
    • 2015-09-03
    • SULZER CHEMTECH AG
    • COSTA, Liborio IvanoBRACK, Hans-PeterTANCINI, FrancescaYU, Yingchuan
    • C08G63/78C08G63/08
    • C08G63/78C08G63/08C08G63/85C08G63/90
    • 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 RPO 4 H 2 , wherein R is a C 6-16 linear, branched or cyclic alkyl group, di alkyl phosphates according to the formula R 2 PO 4 H, wherein each R is independently a C 6-16 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 (ll) wherein n>0 and Q is independently a C 1-16 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.
    • 从环酯单体制备聚酯的方法包括以下步骤:a)提供环酯,b)在催化剂和任选的引发剂存在下在反应器中聚合环酯以形成包含聚酯和未反应的反应混合物 环状酯,其中在聚合之后,将至少一种聚合抑制剂加入到反应混合物中,其中阻聚剂选自根据式RPO4H2的单亚胺,二亚胺,单烷基磷酸酯,其中R是C6-16 直链,支链或环状的烷基,根据式R 2 PO 4 H的二烷基磷酸酯,其中每个R独立地为C 6-16直链,支链或环状的烷基或其组合,以及根据通式(I)的磷酸酯,其中 R',R“和R'”中的至少一个具有如通式(II)中的通式结构,其中n≥0且Q独立地为C1-16直链,支链或取代 烷基,R独立地为H或直链,支链,环状或取代的烷基或苯基衍生物,并且其中不具有通式(II)中通式结构的R',R“和R” )独立地为H或直链,支链,环状或取代的烷基或苯基衍生物。