Claims
- 1. A novel preblended composition suitable as a collection agent consisting essentially of (a) a dispersant of the formula: ##STR6## wherein R' is either hydrogen, methyl, or ethyl and y is an integer from 6 to 17, said dispersant having a molecular weight from about 300 to about 1000, and (b) an aqueous composition made according to the process which comprises:
- (1) reacting a Group IA alkali metal or ammonium hydroxide with an alkyl or alkenyl mercaptan wherein the alkyl or alkenyl group has from 2 to 12 carbon atoms; and
- (2) thereafter adding to the resulting reaction product carbon disulfide in an amount sufficient to effect formation of the desired aqueous composition,
- the ratio of (b) to (a) being from about 80:20 to about 99:1 parts by weight.
- 2. A novel composition according to claim 1 wherein said dispersant has a molecular weight from about 400 to about 750.
- 3. A novel composition according to claim 1 wherein said dispersant is poly(propylene glycol)monomethyl ether.
- 4. A novel composition according to claim 1 wherein said metal hydroxide and said mercaptan are reacted in approximately equivalent amounts.
- 5. A novel composition according to claim 1 wherein said dispersant is poly(propylene glycol)monomethyl ether, said alkali metal hydroxide is sodium hydroxide and said mercaptan is n-butyl mercaptan.
Parent Case Info
This application is a continuation-in-part of U.S. application Ser. No. 387,393, filed on June 11, 1982 now abandoned.
US Referenced Citations (7)
Non-Patent Literature Citations (2)
Entry |
Ind. and Eng. Chem., vol. 42, No. 5, May 1950, pp. 918-919. |
U.S. Pat. Appln. Ser. No. 455,375. |
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
387393 |
Jun 1982 |
|