US3640862A
Expired / Lapsed
US
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Liquid cationic flotation composition
Assignee: Wyeth Holdings LLC
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Filing: 1968-08-08
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Granted: 1972-02-08
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Expires: 1988-08-08
Abstract
Abstract A liquid, temperature-stable, cationic ore concentration flotation composition prepared from an aliphatic alcohol and the reaction product of a fatty acid, diethylene triamine, and glacial acetic acid.
Inventors
- 👤 Elmer William Gieseke
- 👤 Frank Peterson Howald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:50
CPC Classifications
B; B03; B03D; B03D1/00; B03D1/001; B03D1/004; B03D1/01; C; C01; C01B; C01B25/00; C01B25/16; C01B25/26; C01B25/32; B03D2203/00; B03D2203/02; B03D2203/04; B03D2203/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
A process for the preparation of a liquid cationic flotation composition comprising: reacting, at a temperature of between about 100* and about 300* C., a tall oil fatty acid having an acid value of 195-199, a saponification value of 197-200, an iodine value of 129-131 and containing 0.3 to 4.2 percent rosin acid and 0.4 to 1.6 percent unsaponifiables, with diethylene triamine, cooling the thus formed product and treating said product with glacial acetic acid, the ratio of fatty acid to diethylene triamine to acetic acid being about 1:1.5-2.5:0.2-1.0, respectively; cooling the product from said reaction and treating said product with from about 20 to 40 by weight of an alcohol having a boiling point between about 131* and 161* C. selected from the group consisting of methylisobutyl carbinol, heptanol, and mixtures thereof.
Claim 2
Dependent Claim
139 words
A liquid cationic ore separation flotation composition comprising from about 20 to 40 percent by weight of an aliphatic alcohol having a boiling point between about 131* and 161* C. selected from the group consisting of methylisobutyl carbinol, heptanol, and mixtures thereof, and about 60 to 80 percent by weight of the product obtained by reacting approximately one equivalent of a tall oil faTty acid having an acid value of 195-199, a saponification value of 197-200, an iodine value of 129-131 and containing from about 0.3 to 4.2 percent rosin acid and 0.4 to 1.6 percent unsaponifiables with from about 1.5 to 2.5 equivalents of diethylene triamine at a temperature between about 100* and 300* C. and thereafter treating the product with from about 0.2 to 1.0 equivalents of glacial acetic acid to at least partially neutralize the product.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-07 | 1975-08-09 | 1976-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-07 | 1979-08-09 | 1980-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-07 | 1983-08-09 | 1984-02-08 | $7700.00 | Window Closed / Lapsed |