Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing oxygen-containing organic compound
Patent
1998-10-22
2000-07-11
Weber, Jon P.
Chemistry: molecular biology and microbiology
Micro-organism, tissue cell culture or enzyme using process...
Preparing oxygen-containing organic compound
435136, 435803, 435917, C12P 748
Patent
active
060871393
ABSTRACT:
Citric acid and/or the salts thereof are produced from a raw material containing carbohydrates. An aqueous solution of the raw material is converted into a first solution containing citric acid by means of fermentation, and from the first solution a second solution containing citric acid is obtained by means of a cell separation. The second solution is subjected to a protein precipitation at temperatures of 2 to 70.degree. C., and protein is separated by filtration. From the filtration, a third solution containing citric acid is obtained, and the same is passed through a first anion exchanger. The solution containing citric acid, which is discharged from the first anion exchanger, is passed through a second anion exchanger, which is selectively charged with citric acid. The second anion exchanger charged with citric acid is eluted with hydroxide solution or water, and there is thus obtained a fourth solution, in which citrate or citric acid is dissolved. Water is at least partly removed from the fourth solution.
REFERENCES:
patent: 4851573 (1989-07-01), Kulprathipanja et al.
patent: 4851574 (1989-07-01), Kulprathipanja
patent: 4855494 (1989-08-01), Margureanu et al.
patent: 4924027 (1990-05-01), Kulprathipanja et al.
patent: 5237098 (1993-08-01), Bemish et al.
patent: 5759826 (1998-06-01), Ahlers et al.
Boensch Rudolf
Cerny Vaclav
Hohmann Klaus
Hotek Frantisek
Kuhn Juergen
Dubno Herbert
Metallgesellschaft Aktiengesellschaft
Myers Jonathan
Weber Jon P.
LandOfFree
Process for producing citric acid and/or citrates does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for producing citric acid and/or citrates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing citric acid and/or citrates will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-541066