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1. 发明申请

US20160185704A1 LACTATE PRODUCTION PROCESS 有权
标题翻译： LACTATE生产工艺
公开(公告)号：US20160185704A1
公开(公告)日：2016-06-30
申请号：US14912372
申请日：2014-09-05
申请人： PLAXICA LIMITED
发明人： Stephen Donegan , Philip James Goodier , Edward Leslie Marshall , Urvish Rameshchandra Pandya , Ajitkumar Mukundrai Patel
IPC分类号： C07C51/02 , C07C51/41 , C07C67/08
CPC分类号： C07C51/02 , A01N63/02 , A61K35/744 , C01B7/03 , C01D1/04 , C01D3/04 , C07C51/295 , C07C51/41 , C07C59/08 , C07C67/08 , C07C69/68
摘要： A process for producing lactic acid is provided. The process comprises (a) reacting a stream rich in saccharide with sodium hydroxide in the presence of water to produce a reaction mixture comprising sodium lactate; (b) reacting at least a portion of the sodium lactate with HCl to produce lactic acid and sodium chloride; (c) converting at least a portion of the sodium chloride to chlorine and sodium hydroxide; and (d) recycling at least a portion of the sodium hydroxide produced in step (c) to step (a). Also provided are processes for the production of alkyl lactate, oligomeric lactic acid, lactide, alkyl lactyllactate, poly-lactic acid, propylene glycol and acrylic acid.
摘要翻译：提供了一种生产乳酸的方法。该方法包括（a）在水的存在下使富含糖的物流与氢氧化钠反应，以产生包含乳酸钠的反应混合物; （b）使至少一部分乳酸钠与HCl反应生成乳酸和氯化钠; （c）将至少一部分氯化钠转化成氯和氢氧化钠; 和（d）将步骤（c）中产生的至少一部分氢氧化钠再循环到步骤（a）。还提供了用于制备乳酸烷基酯，低聚乳酸，丙交酯，乳糖基乳酸烷基酯，聚乳酸，丙二醇和丙烯酸的方法。

2. 发明申请

US20150152449A1 Lactate Production Process 审中-公开
标题翻译：乳酸生产工艺
公开(公告)号：US20150152449A1
公开(公告)日：2015-06-04
申请号：US14406048
申请日：2013-06-10
申请人： Plaxica Limited
发明人： Edward Leslie Marshall , Alan Keasey , David Mark Sutton
IPC分类号： C12P7/62 , C07C67/465 , C07C67/29 , C07D319/12 , C07C51/09
CPC分类号： C12P7/62 , C07C51/09 , C07C67/29 , C07C67/465 , C07D319/12 , C12P7/56 , C12P7/625 , C12P41/005
摘要： A process for producing alkyl R-lactate from an initial compound comprising substructure (I) is provided. The process involves producing an intermediate comprising R,R- and S,S-lactide from the initial compound, wherein the initial compound is subjected to stereoisomerisation conditions; and reacting at least a portion of the intermediate with an alkyl alcohol to produce a product comprising alkyl R-lactate, wherein alkyl R-lactate is produced in the presence of an enzyme. Also provided are processes for the production of R-lactic acid, oligomeric R-lactic acid, R,R-lactide, poly-R-lactic acid and stereocomplex lactic acid.
摘要翻译：提供了由包含亚结构（I）的初始化合物制备R-乳酸烷基酯的方法。该方法包括从初始化合物产生包含R，R-和S，S-丙交酯的中间体，其中初始化合物经历立体异构化条件; 并使所述中间体的至少一部分与烷基醇反应以产生包含R-乳酸烷基酯的产物，其中在酶存在下产生R-乳酸烷基酯。还提供了生产R-乳酸，低聚R-乳酸，R，R-丙交酯，聚R-乳酸和立体络合乳酸的方法。

3. 发明授权

US09604895B2 Lactate production process 有权
公开(公告)号：US09604895B2
公开(公告)日：2017-03-28
申请号：US14912372
申请日：2014-09-05
申请人： PLAXICA LIMITED
发明人： Stephen Donegan , Philip James Goodier , Edward Leslie Marshall , Urvish Rameshchandra Pandya , Ajitkumar Mukundrai Patel
IPC分类号： C07C59/08 , C07C51/02 , C01B7/03 , C07C67/08 , C07C51/295 , C07C51/41 , C01D1/04 , C01D3/04 , A61K35/744 , A01N63/02
CPC分类号： C07C51/02 , A01N63/02 , A61K35/744 , C01B7/03 , C01D1/04 , C01D3/04 , C07C51/295 , C07C51/41 , C07C59/08 , C07C67/08 , C07C69/68
摘要： A process for producing lactic acid is provided. The process comprises (a) reacting a stream rich in saccharide with sodium hydroxide in the presence of water to produce a reaction mixture comprising sodium lactate; (b) reacting at least a portion of the sodium lactate with HCl to produce lactic acid and sodium chloride; (c) converting at least a portion of the sodium chloride to chlorine and sodium hydroxide; and (d) recycling at least a portion of the sodium hydroxide produced in step (c) to step (a). Also provided are processes for the production of alkyl lactate, oligomeric lactic acid, lactide, alkyl lactyllactate, poly-lactic acid, propylene glycol and acrylic acid.

4. 发明申请

US20140147898A1 Separation Process 有权
标题翻译：分离过程
公开(公告)号：US20140147898A1
公开(公告)日：2014-05-29
申请号：US14232365
申请日：2012-07-16
申请人： PLAXICA LIMITED
发明人： Edward Leslie Marshall , Jade Jocelyn Afriye Osei-Tutu , Stephen Alexander Calder Smith
IPC分类号： C12P7/62
CPC分类号： C12P7/62 , C12P7/56 , C12P17/06 , C12P41/003
摘要： A process for treating a mixture of R,R- and S,S-lactide is provided. The process involves contacting the mixture with an aliphatic alcohol and an enzyme to produce a mixture comprising aliphatic ester of lactic acid corresponding to one lactide enantiomer and the aliphatic ester of lactyllactic acid corresponding to the other lactide enantiomer; separating the mixture from the enzyme, and recycling the enzyme to the process; and separating the aliphatic ester of lactic acid from the aliphatic ester of lactyl-lactic acid by fractional distillation. Also provided are processes for the production of S-lactic acid, S,S-lactide, poly-S-lactic acid, R-lactic acid, R,R-lactide, poly-R-lactic acid and stereocomplex polylactic acid.
摘要翻译：提供了一种用于处理R，R-和S，S-丙交酯的混合物的方法。该方法包括使混合物与脂族醇和酶接触以产生包含对应于一种丙交酯对映异构体的乳酸脂肪酸酯和对应于其它丙交酯对映异构体的乳糖乳酸脂族酯的混合物; 从酶分离混合物，并将酶再循环至该方法; 并通过分馏从乳酸 - 乳酸的脂肪族酯分离乳酸的脂族酯。还提供了用于生产S-乳酸，S，S-丙交酯，聚S-乳酸，R-乳酸，R，R-丙交酯，聚R-乳酸和立体络合物聚乳酸的方法。

5. 发明申请

US20140342413A1 Separation Process 有权
标题翻译：分离过程
公开(公告)号：US20140342413A1
公开(公告)日：2014-11-20
申请号：US14232426
申请日：2012-07-16
申请人： Plaxica Limited
发明人： Edward Leslie Marshall , Jade Jocelyn Afriye Osei-Tutu , Stephen Alexander Calder Smith
IPC分类号： C12P7/62
CPC分类号： C12P7/62 , C12P7/56 , C12P17/06 , C12P41/003
摘要： A process for treating a mixture of R,R- and S,S-lactide is provided. The process involves contacting the lactide mixture with an aliphatic alcohol and/or an alkoxide to produce a mixture of R,R- and S,S-aliphatic ester of lactyllactic acid, subsequently contacting the mixture of R,R- and S,S-aliphatic ester of lactyllactic acid with an enzyme to produce a mixture comprising aliphatic ester of lactic acid corresponding to one lactide enantiomer and the aliphatic ester of lactyllactic acid corresponding to the other lactide enantiomer, and recovering the product. Also provided are processes for the production of S-lactic acid, S,S-lactide, poly-S-lactic acid, R-lactic acid, R,R-lactide, poly-R-lactic acid and stereocomplex polylactic acid.
摘要翻译：提供了一种用于处理R，R-和S，S-丙交酯的混合物的方法。该方法包括使丙交酯混合物与脂族醇和/或醇盐接触以产生乳糖基乳酸的R，R-和S，S-脂族酯的混合物，随后将R，R-和S的混合物S- 将乳酸乳酸的脂肪族酯与酶反应，生成包含对应于一种丙交酯对映异构体的乳酸脂肪酸酯和对应于其它丙交酯对映异构体的乳糖乳酸脂肪酸酯的混合物，并回收该产物。还提供了用于生产S-乳酸，S，S-丙交酯，聚S-乳酸，R-乳酸，R，R-丙交酯，聚R-乳酸和立体络合物聚乳酸的方法。

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