Invention Grant
- Patent Title: Lactate production process
-
Application No.: US14912372Application Date: 2014-09-05
-
Publication No.: US09604895B2Publication Date: 2017-03-28
- Inventor: Stephen Donegan , Philip James Goodier , Edward Leslie Marshall , Urvish Rameshchandra Pandya , Ajitkumar Mukundrai Patel
- Applicant: PLAXICA LIMITED
- Applicant Address: GB Redcar
- Assignee: Plaxica Limited
- Current Assignee: Plaxica Limited
- Current Assignee Address: GB Redcar
- Agency: Kilpatrick Townsend & Stockton LLP
- Priority: GB1315929.8 20130906
- International Application: PCT/GB2014/052700 WO 20140905
- International Announcement: WO2015/033159 WO 20150312
- Main IPC: C07C59/08
- IPC: C07C59/08 ; C07C51/02 ; C01B7/03 ; C07C67/08 ; C07C51/295 ; C07C51/41 ; C01D1/04 ; C01D3/04 ; A61K35/744 ; A01N63/02

Abstract:
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.
Public/Granted literature
- US20160185704A1 LACTATE PRODUCTION PROCESS Public/Granted day:2016-06-30
Information query