Union Oil Company of California

Entek Corporation

Marjorie M Hatter

Charles F Wong

William C Lieffers

Salts of tetrathiocarbonic acid are produced by a process in which a hydroxide, sulfur, carbon disulfide and hydrogen sulfide are reacted continuously. The salts are produced as aqueous solutions having concentrations of about 15 to about 55 percent by weight.

Tetrathiocarbonate continuous process

Salts of tetrathiocarbonic acid are produced by a batch process in which a hydroxide, hydrogen sulfide, sulfur and carbon disulfide are reacted sequentially. The salts are produced as aqueous solutions having concentrations of upwards of 30 percent by weight.

Tetrathiocarbonate batch process

A method for capping an idle geothermal steam well so as to prevent hydrogen sulfide emissions and well damage due to steam condensation includes replacing geothermal steam in a well borehole with gas, perferably an inert gas such as nitrogen, and sealing the well at the wellhead. Thereafter additional quantities of the gas are bled into the well borehole at a rate that substantially prevents steam condensation in the borehole. The method includes purging the well bore with air sufficiently to assure all steam is swept out of the well before the gas is introduced.

Growing community of inventors

Fullerton, CA, United States of America

Marjorie M Hatter