Title:
発酵ブロスからの多価イオン及び乳酸イオンを分離する方法
Document Type and Number:
Japanese Patent JP2006503571
Kind Code:
A
Abstract:
Separating multivalent ions and lactate ions from a fermentation broth comprising a multivalent ion lactate comprising introducing the broth in a first compartment limited by an anion-selective or non-selective membrane and a cathode, converting the multivalent ion to obtain a residual stream comprising the hydroxide of the multivalent ions, and transporting the lactate ion into a second compartment limited by the membrane and an anode, is new. Separation of multivalent ions and lactate ions from a fermentation broth comprising a multivalent ion lactate, involves introducing the broth having at least 0.1 mole/l multivalent ion concentration, less than 300 g/l lactate ion concentration, and other negatively charged ion of less than 10 mol.% of the lactate ion, into a first compartment of an electrodialysis or electrolysis apparatus. The compartment is limited by an anion-selective or non-selective membrane and a cathode. The multivalent ion is converted to obtain a residual stream comprising the hydroxide of the multivalent ion. The lactate is transported through the anion-selective or non-selective membrane into a second compartment limited by the anion-selective or non-selective membrane and an anode, after which the lactate ion is neutralized to lactic acid. An independent claim is also included for an electrodialysis or electrolysis apparatus for separating a fermentation broth into a residual stream comprising multivalent ions and lactate ions.
Inventors:
Baet, peter
Groot, Willem, Jacob
Groot, Willem, Jacob
Application Number:
JP2004546052A
Publication Date:
February 02, 2006
Filing Date:
October 27, 2003
Export Citation:
Assignee:
Purak Biochem B. Buoy.
International Classes:
C12P7/56; B01D61/44; B01D61/46; C07C51/487; C07C59/08; C12M1/00; C12M1/12
Domestic Patent References:
| JPH02286090A | 1990-11-26 |
Foreign References:
| US6331236B1 | 2001-12-18 |
Attorney, Agent or Firm:
Mitsuo Matsui