Process for purification of mixtures containing water, salts, gl

Details Process for purification of mixtures containing water, salts, gl Process for purification of mixtures containing water, salts, gl

1982-04-26

1984-06-12

Cintins, Ivars C.

Liquid purification or separation

Processes

Ion exchange or selective sorption

210683, B01D 1504

Patent

active

044540450

ABSTRACT:
A process for purifying or working-up a mixture containing water, water-soluble salts, organic ions and organic solvents, particularly mixtures of water, NaCl, Na glycolate and aliphatic alcohols such as methanol or isopropanol, by separating the mixture into its components using acidic and/or basic ion exchangers, in particular, using weakly basic anion exchangers after optionally adjusting the pH of the mixture to an acid value. The process is especially suited for purifying liquid reaction media and/or washing media from the production of polysaccharides, such as cellulose ethers or starch ethers containing sodium-carboxymethyl group substituents, which are prepared from polysaccharides, an alkali metal hydroxide and monochloroacetate ions in a medium containing water and at least one organic solvent.

REFERENCES:
patent: 2517577 (1950-08-01), Klug et al.
patent: 2617800 (1952-11-01), Bergman
patent: 3069409 (1962-12-01), Henry et al.
patent: 3284441 (1966-11-01), Bishop et al.
patent: 3347855 (1967-10-01), Nelson
patent: 3361740 (1968-01-01), Sommers
patent: 3859349 (1975-01-01), Cody
patent: 4017671 (1977-04-01), Schminke et al.
patent: 4054601 (1977-10-01), Metz et al.
Stevens, T. S. et al., "Determination of Anions in Boiler Blow-Down Water with Ion Chromatograhy" Anal. Chem., vol. 49, No. 8 (Jul. 1977), pp. 1176-1178.
"Encyklopaedie der Technischen Chemie" 4th Edition (Ullmanns).

Affiliated with

Also associated with

Rating

Process for purification of mixtures containing water, salts, gl 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 purification of mixtures containing water, salts, gl, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for purification of mixtures containing water, salts, gl will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-120511