Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Patent
1997-07-11
1999-04-06
Barts, Samuel
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
562589, C07C 5148
Patent
active
058921095
ABSTRACT:
A process for the production of lactic acid and for the separation and/or recovery of lactic acid from a lactate feed solution. A lactate feed solution preferably obtained from a fermentation broth is combined with and extracted by a water immiscible trialkyl amine in the presence of carbon dioxide. Lactic acid is recovered from the resulting organic phase. Recovered carbonate or bicarbonate from the aqueous phase is preferably recycled to the fermentor and regenerated extractant is preferably recycled for use in the extraction.
REFERENCES:
patent: 1906068 (1933-04-01), Jenemann
patent: 2223797 (1940-12-01), Tindall
patent: 2539472 (1951-01-01), Ratchford et al.
patent: 4275234 (1981-06-01), Baniel et al.
patent: 4282323 (1981-08-01), Yates
patent: 4405717 (1983-09-01), Urbas
patent: 4444881 (1984-04-01), Urbas
patent: 4698303 (1987-10-01), Bailey et al.
patent: 5071754 (1991-12-01), Walkup et al.
patent: 5132456 (1992-07-01), King et al.
patent: 5349084 (1994-09-01), Shishikura et al.
patent: 5510526 (1996-04-01), Baniel et al.
Proceedings of the International Solvent Extraction Conference, Col. 3, issued 1974, R. Blumberg et al., "Interesting Aspects in the Development of a Novel Solvent Extraction Process for Producing Sodium Bicarbonate", pp. 2789-2802.
D.R. Johnson, "Lactic Acid Purification Processes", Moffat Research, Arga, IL Nov. 1970.
R. Blumberg et al., "A Process for the Manufacture of Alkali Metal Carbonates", 1972.
N.L. Ricker et al., "Solvent Extraction with Amines for Recovery of Acetic Acid from Dilute Aqueous Industrial Streams", J. Separ. Proc. Technol. 1(2) 23-30 (1980).
R. Bar and J.L. Geiner, Biotechnology Progress 3, 109 (1987).
Baniel Avraham M.
Eyal Aharon M.
Fisher Rod R.
Hazan Betty
Kolstad Jeffrey J.
Barts Samuel
Cargill Incorporated
LandOfFree
Lactic acid production, separation and/or recovery process does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Lactic acid production, separation and/or recovery process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lactic acid production, separation and/or recovery process will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1372966