Sodium Chloride → Epichlorohydrin

HRID 1707879Notes

Reaction equation

HRID 1707879 reaction equation
C(OC=C)(=O)C.C1(=O)OC(=O)C=C1.[Na+].[Cl-:15].[CH2:16]([CH:18]1[O:20][CH2:19]1)[Cl:17].[OH-:21].[Na+]>O>[CH2:16]([CH:18]1[O:20][CH2:19]1)[Cl:17].[Cl:15][C:16]([Cl:17])([OH:21])[CH2:18][CH3:19]

Participants

8

Reactant 5

HCID 5234Sodium ChlorideHCID 7835EpichlorohydrinHCID 7904Vinyl AcetateHCID 7923Maleic AnhydrideHCID 14798Sodium Hydroxide

Product 2

HCID 7835EpichlorohydrinHCID 444122,2-Dichloropropanol

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

A suitable reaction vessel is charged with 107 parts of a terpolymer of acrylic ester, vinyl acetate and maleic anhydride (0.6 COOH equivalents, e.g. Belclene® 283), 90 parts of water and 4 parts of NaCl. After 90 pans of epichlorohydrin have been added, the reaction mixture is heated to 80°-85° C. for about 1 hour, cooled down to room temperature and neutralised with sodium hydroxide solution (pH about 6.8). Excess epichlorohydrin and dichloropropanol formed in the course of the reaction are then distilled off azeotropically. The product is adjusted to contain 25% of polymer, 25% of 3-chloro-1,2-propanediol and 50% of water.

Workup

  1. temperaturethe reaction mixture is heated to 80°-85° C. for about 1 hour

Sources & evidence

ORD record
ord-8b52d60120314864aec6ff87434093c5
Source dataset
uspto-grants-1994_10
Patent number
US05356442

Reaction notes

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