| 释义 |
tall oil, n.
Brit. |ˈtɑːl ɔɪl|, U.S. |ˈtɑl ˈɔɪl|
[‹ German Tallöl (1909; > n.1)), with substitution of oil n.1 for the second element.]
A resinous mixture of fatty acids, resin acids, and plant sterols recovered when resinous wood pulp is digested during paper-making, used in making lubricants, paints, and adhesives.
1909Chem. Abstr. 3 1697 The author reinvestigated the chemical and physical properties of ‘Tall’ oil, a by-product of the cellulose industry. 1941Indian Forester 67 395 Tall oil is a commercial name given to certain oily by-products obtained during chemical pulping of pinewood by the alkali-sulphate process. 1962N. Potter & N. T. Christie Trends Nat. Resource Commodities 262 All naval stores are priced at the gum product prices—including the gum content of tall oil. 1994Resource Oct. 18/2 The traditional rosin size is obtained as a byproduct at kraft mills where tall oil is separated from the black liquor. |