Process for the continuous recovery of free tartaric acid...

Details Process for the continuous recovery of free tartaric acid... Process for the continuous recovery of free tartaric acid...

2007-12-25

2007-12-25

Drodge, Joseph (Department: 1723)

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

C023S299000, C023S300000, C210S663000, C210S669000, C210S774000, C210S787000, C210S804000, C426S495000, C562S585000

Reexamination Certificate

active

10789704

ABSTRACT:
In a process for the continuous recovery of free tartaric acid from raw materials containing potassium hydrogentartrate, the same are mixed with water and the potassium hydrogentartrate is dissolved. The process is improved in that the suspension is decanted, the clarified liquid is refiltered, the filtrate is cooled to crystallization temperature under a vacuum, the potassium hydrogentartrate crystals formed are dissolved, the solution is subjected to a cation exchange, and the tartaric acid solution obtained is evaporated.

REFERENCES:
patent: 3114770 (1963-12-01), Dabul
patent: 3963700 (1976-06-01), Philip
patent: 4560565 (1985-12-01), Wucherpfennig et al.
patent: 4781809 (1988-11-01), Falcone, Jr.
patent: 4889743 (1989-12-01), Tazawa et al.
patent: 5268283 (1993-12-01), Mothes et al.
patent: 6534678 (2003-03-01), Bonsch et al.
patent: 6670505 (2003-12-01), Collins et al.
patent: 6790429 (2004-09-01), Ciampi
patent: 2003/0185959 (2003-10-01), Singh et al.
patent: 2005/0020853 (2005-01-01), Kuroda et al.
patent: 749707 (1999-03-01), None
patent: C-264005 (1883-03-01), None
patent: A-19819884 (1998-05-01), None
patent: 965576 (1999-04-01), None
patent: 1454984 (2004-01-01), None
patent: A-2646421 (1989-04-01), None
patent: 88445 (1986-01-01), None
patent: 390067 (1973-10-01), None
Derwent Translated Abstract for Soviet Union Publication SU 390,067, published Oct. 26, 1973.

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