公开(公告)号：US20240343703A1

公开(公告)日：2024-10-17

申请号：US18682825

申请日：2022-08-11

申请人： SULZER MANAGEMENT AG

发明人： Francesco DISTANTE ,  Florian KEHRER ,  Claudia VON SCALA REICHENBACH DE SOUSA

IPC分类号： C07D319/12 ,  B01D3/14 ,  B01D3/36 ,  B01J19/00 ,  B01J19/18 ,  B01J23/14

CPC分类号： C07D319/12 ,  B01D3/143 ,  B01D3/36 ,  B01J19/0013 ,  B01J19/1862 ,  B01J23/14 ,  B01J2523/43

摘要： A process of producing lactide from lactic acid is provided. The process comprises feeding lactic acid, a hydrocarbon solvent and at least one catalyst into a reactor to form a reaction mixture. The process further comprises reacting the reaction mixture in the reactor so that at least a part of the lactic acid is converted to lactide and water, while distilling at least a part of the reaction mixture to remove an azeotrope of water and the hydrocarbon solvent from the reactor. The process also comprises separating at least a part of the water from the azeotrope, and separating at least a part of the lactide from the reaction mixture. The at least one catalyst comprises a homogeneous catalyst comprising an organometallic compound selected from the group consisting of: tin alkoxides, zinc alkoxides, aluminum alkoxides, titanium alkoxides, tin carboxylates, zinc carboxylates, aluminum carboxylates, titanium carboxylates and mixtures thereof.

公开(公告)号：US12077497B2

公开(公告)日：2024-09-03

申请号：US18531135

申请日：2023-12-06

申请人： SULZER MANAGEMENT AG

发明人： Rahul Khandelwal ,  Joseph C. Gentry ,  Randi Wytcherley ,  Kimberly Anderson ,  Meta Naulita-Ellis ,  Claudia Pudack ,  Celine Rioual ,  Christoph Kirschner ,  B. Bryant Slimp ,  Manfred Stepanski ,  Erik Temmel

IPC分类号： C07C7/14 ,  B01D3/14 ,  B01D3/40 ,  B01D9/00 ,  C07C5/03 ,  C07C7/00 ,  C07C7/08

CPC分类号： C07C7/14 ,  B01D3/143 ,  B01D3/40 ,  B01D9/0013 ,  B01D9/0031 ,  B01D9/0059 ,  C07C5/03 ,  C07C7/005 ,  C07C7/08 ,  B01D2009/0086

摘要： A method for preparing a purified styrene composition with a styrene yield of at least 80%. The method comprises providing a crude composition containing styrene, and subjecting the crude composition to at least one crystallization step. The at least one crystallization step comprises at least one static crystallization stage and at least one dynamic crystallization stage.

公开(公告)号：US12025150B2

公开(公告)日：2024-07-02

申请号：US16780280

申请日：2020-02-03

申请人： Sulzer Management AG

发明人： Steve Milojevic

IPC分类号： F04D29/42 ,  F04D1/06 ,  F04D29/44 ,  F15D1/04

CPC分类号： F04D29/42 ,  F04D1/06 ,  F04D29/445 ,  F15D1/04 ,  F05B2240/14 ,  F05B2260/60

摘要： A multistage pump includes a pump casing, a shaft, a first impeller, a second impeller, and a pipe. The shaft is rotatably disposed within the pump casing and has a longitudinal axis. The first impeller is disposed within the casing at a first position along the shaft. The second impeller is disposed within the casing at a second position and along the shaft. The pipe is detachably attached to the pump casing, and has an inlet and an outlet, the inlet disposed at the discharge of the first impeller and the outlet disposed at an eye of the second impeller, such that discharge from the first impeller can be conveyed to the eye of the second impeller.

公开(公告)号：US12006949B2

公开(公告)日：2024-06-11

申请号：US16688404

申请日：2019-11-19

申请人： Sulzer Management AG

发明人： Matthew Bourne ,  Nicholas Czemerys

IPC分类号： F04D29/54 ,  F04D19/02 ,  F04D29/18 ,  F04D29/52

CPC分类号： F04D29/54 ,  F04D19/02 ,  F04D29/181 ,  F04D29/52

摘要： A multiphase pump for conveying a multiphase process fluid from a low pressure side to a high pressure side includes an outer housing, a casing, the casing having a pump inlet and a pump outlet for the process fluid, and a pump rotor capable of rotating about an axial direction arranged within the casing, and configured to convey the process fluid from the pump inlet to the pump outlet. The casing includes a plurality of stage segments, and the plurality of stage segments include an individual stage-segment, a low pressure segment arranged at the pump inlet and a high pressure segment arranged at the pump outlet, the individual stage-segment arranged between the high pressure segment and the low pressure segment, and the plurality of stage segments being held together by a sealing support structure, the casing being arranged within the outer housing.

公开(公告)号：US12006946B2

公开(公告)日：2024-06-11

申请号：US17454072

申请日：2021-11-09

申请人： Sulzer Management AG

发明人： Karel De Raeve ,  Thomas Welschinger

IPC分类号： F04D29/06 ,  F04D1/08 ,  F04D13/08 ,  F04D29/041 ,  F04D29/047 ,  F16C17/02 ,  F16C17/08 ,  F16C17/14

CPC分类号： F04D29/061 ,  F04D1/08 ,  F04D13/086 ,  F04D29/0413 ,  F04D29/0416 ,  F04D29/0473 ,  F16C17/02 ,  F16C17/08 ,  F16C17/14

摘要： A process fluid lubricated pump includes a housing with an inlet to receive the fluid, and an outlet to discharge the fluid, a shaft extending from a drive end to a non-drive end and rotatable about an axial direction, the drive end of the shaft arranged outside the housing, a hydraulic unit including impellers mounted on the shaft, a collection chamber to collect leaking process fluid, the collection chamber comprising an exit, through which the shaft passes, and an exit to discharge the process fluid, and a throttle device arranged between the hydraulic unit and the collection chamber, the throttle device comprising a stationary throttle part having first and second axial faces delimiting the stationary throttle part, the first axial face facing the collection chamber, and the throttle device including a throttle gap surrounding the shaft and extending from the first axial face to the second axial face.

公开(公告)号：US20240116022A1

公开(公告)日：2024-04-11

申请号：US17768432

申请日：2020-09-28

申请人： Sulzer Management AG

发明人： Marc WEHRLI ,  Ilja AUSNER ,  Florian KEHRER ,  Markus DUSS

IPC分类号： B01J19/32

CPC分类号： B01J19/32 ,  B01J2219/32213 ,  B01J2219/32227 ,  B01J2219/32262 ,  B01J2219/32286

摘要： A structured packing element for a column for at least one of mass transfer and heat exchange between a heavy fluid phase and a light fluid phase. The structured packing element comprises at least two layers of a grid comprising openings that are surrounded and separated from each other by separating elements. At least two of the layers are arranged in a longitudinal direction parallel and in touching contact with each other such that an open space extending from one end to an opposite end of the layers is provided between the layers such that at least one of the heavy fluid phase and the light fluid phase may flow therethrough. An average width of at least 50% of the separating elements between adjacent openings is at least 15 times a layer material thickness and is between 70% and 125% of an average hydraulic diameter of the adjacent openings.

公开(公告)号：US11891358B2

公开(公告)日：2024-02-06

申请号：US17916554

申请日：2021-05-07

申请人： SULZER MANAGEMENT AG

发明人： Rahul Khandelwal ,  Joseph C. Gentry ,  Randi Wytcherley ,  Kimberly Anderson ,  Meta Naulita-Ellis ,  Claudia Pudack ,  Celine Rioual ,  Christoph Kirschner ,  B. Bryant Slimp ,  Manfred Stepanski ,  Erik Temmel

IPC分类号： C07C7/14 ,  C07C5/03 ,  B01D3/14 ,  B01D3/40 ,  B01D9/00 ,  C07C7/00 ,  C07C7/08

CPC分类号： C07C7/14 ,  B01D3/143 ,  B01D3/40 ,  B01D9/0013 ,  B01D9/0031 ,  B01D9/0059 ,  C07C5/03 ,  C07C7/005 ,  C07C7/08 ,  B01D2009/0086

摘要： A method for preparing a purified styrene composition with a styrene yield of at least 80%. The method comprises providing a crude composition containing styrene, and subjecting the crude composition to at least one crystallization step. The at least one crystallization step comprises at least one static crystallization stage and at least one dynamic crystallization stage.

公开(公告)号：US20240026884A1

公开(公告)日：2024-01-25

申请号：US18038922

申请日：2021-10-27

申请人： Sulzer Management AG

发明人： Kalle TITINEN ,  Janne RIPATTILA

IPC分类号： F04D1/06 ,  F04D1/04

CPC分类号： F04D1/06 ,  F04D1/04 ,  F05D2250/51

摘要： A centrifugal pump includes a pump housing having a suspension inlet and a suspension outlet and a flow channel between the inlet and the outlet, a shaft mounted by bearings for rotation about a center axis, an impeller which is rotatable by the shaft, in alignment with the inlet and arranged to be rotated about the axis in the flow channel, and gas collecting openings for gas removal arranged in the flow channel. The inlet end of the flow channel includes a number of static vanes comprising gas collecting openings, the vanes extend radially from an inner wall of the flow channel toward the center of the flow channel and are upstream of the impeller.

公开(公告)号：US11879483B2

公开(公告)日：2024-01-23

申请号：US17241485

申请日：2021-04-27

申请人： Sulzer Management AG

发明人： Karel De Raeve ,  Bartosz Kus ,  Thomas Welschinger

IPC分类号： F04D29/66 ,  F04D3/00 ,  F04D29/08 ,  F04D29/52 ,  F04D29/54

CPC分类号： F04D29/669 ,  F04D3/00 ,  F04D29/086 ,  F04D29/528 ,  F04D29/548 ,  F04D29/66 ,  F04D29/661 ,  F04D29/667

摘要： A multiphase pump for conveying a multiphase process fluid includes a pump housing, a stationary diffuser, a rotor and swirl brake. The rotor is arranged in the pump housing and is rotatable about an axial direction, the rotor including a pump shaft and an impeller fixedly mounted on the pump shaft. The stationary diffuser is arranged adjacent to and downstream of the impeller. The impeller includes a blade with the blade having a radially outer tip, and a ring surrounding the impeller and arranged at the radially outer tip of the blade. A passage is between the ring and a stationary part configured to be stationary with respect to the pump housing, the passage extending in the axial direction from an entrance to a discharge. The swirl brake is disposed at the passage, and configured and arranged to brake swirling of the process fluid passing through the passage.

公开(公告)号：US20230405487A1

公开(公告)日：2023-12-21

申请号：US18035724

申请日：2021-11-02

申请人： SULZER MANAGEMENT AG

发明人： Christian BACHMANN ,  Faton BERISHA ,  Stefan LEUPPI

IPC分类号： B01D3/00 ,  B01D53/18

CPC分类号： B01D3/008 ,  B01D53/185

摘要： A liquid distributor for a separation device is provided. The liquid distributor comprises at least one pre-distributor member positioned above a plurality of distributor members. The at least one pre-distributor member comprises at least two troughs each comprising a plurality of discharge openings. Each two of the at least two troughs are connected with each other, and a first trough has an overflow portion and at least one deflector attached to the overflow portion or a side wall of the first trough. A second trough has an upper edge. If a liquid level in the first trough reaches the overflow portion, the at least one deflector extends from above the upper edge of the second trough to the second trough so that liquid flows into the second trough from the first trough over the overflow portion or the side wall and the at least one deflector.