公开(公告)号：EP3041816A1

公开(公告)日：2016-07-13

申请号：EP14762083.5

申请日：2014-09-05

申请人： Plaxica Limited

发明人： DONEGAN, Stephen ,  GOODIER, Philip James ,  MARSHALL, Edward Leslie ,  PANDYA, Urvish Rameshchandra ,  PATEL, Ajitkumar Mukundrai

IPC分类号： C07C67/08 ,  C07C69/68 ,  C07C51/295 ,  C07C59/08

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为氯和氢氧化钠; 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。

公开(公告)号：EP3041816B1

公开(公告)日：2017-11-15

申请号：EP14762083.5

申请日：2014-09-05

申请人： Plaxica Limited

发明人： DONEGAN, Stephen ,  GOODIER, Philip James ,  MARSHALL, Edward Leslie ,  PANDYA, Urvish Rameshchandra ,  PATEL, Ajitkumar Mukundrai

IPC分类号： C07C67/08 ,  C07C51/295 ,  C07C51/41 ,  C07C51/02 ,  C07C59/08 ,  C07C69/08

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.