Patent ID: 11932551
Assignee: MICHIGAN TECHNOLOGICAL UNIVERSITY
Field: Materials, metallurgy (Chemistry)
Classification: CPC C | IPC C

Claim 9:
10. A method for producing salt, the method comprising:
preparing hydrohalite particles by crystallization from saturated brine;
adding the hydrohalite particles to a salt brine, thereby forming a hydrohalite-salt brine mixture,
wherein an initial temperature of the salt brine prior to adding the hydrohalite particles is between 0° C. and 40° C.; and
when the initial temperature of the salt brine is between 5° C. and 10° C., a ratio of salt brine to hydrohalite particles, by weight, is from 4.5 to 29;
when the initial temperature of the salt brine is between 10° C. and 15° C., the ratio of salt brine to hydrohalite particles, by weight, is from 2.5 to 4.8;
when the initial temperature of the salt brine is between 15° C. and 20° C., the ratio of salt brine to hydrohalite particles, by weight, is from 1.7 to 2.7;
when the initial temperature of the salt brine is between 20° C. and 25° C., the ratio of salt brine to hydrohalite particles, by weight, is from 1.3 to 1.8;
when the initial temperature of the salt brine is between 25° C. and 30° C., the ratio of salt brine to hydrohalite particles, by weight, is from 1.0 to 1.4; and
when the initial temperature of the salt brine is between 30° C. and 40° C., the ratio of salt brine to hydrohalite particles, by weight, is from 0.4 to 1.2;

agitating the hydrohalite-salt brine mixture until the hydrohalite particles have decomposed into NaCl crystals; and
filtering out the NaCl crystals from the salt brine.