Process for reducing the content of hydrolyzable chlorine in gly

Details Process for reducing the content of hydrolyzable chlorine in gly Process for reducing the content of hydrolyzable chlorine in gly

1985-12-11

1987-05-26

Milestone, Norma S.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

544221, 544318, 548309, 548318, 525507, 528489, C07D30132

Patent

active

046688072

ABSTRACT:
To reduce the content of hydrolyzable chlorine in glycidyl compounds, these are dissolved in a halogen-free organic solvent and treated with an equivalent excess of aqueous alkali metal hydroxide solution at elevated temperature, the excess being 100 to 200% of the equivalent amount theoretically required for complete dehydrochlorination of the hydrolyzable chlorine, the water is then removed from the organic solution, the organic solution is treated with 5 to 500 times the amount, based on the amount of alkali metal hydroxide employed, of moist cellulose containing up to 35% by weight of water at elevated temperature and, after filtration, the glycidyl compound is isolated from the organic solution.

REFERENCES:
patent: 4017523 (1977-04-01), Vargiu et al.
H. Lee and K. Neville, Handbook of Epoxy Resins, McGraw Hill, New York, 1967, pp. 4-30.

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