Crude Tall Oil
Crude tall oil (CTO) is a co-product from kraft pulping. Tall oil soap is collected at the mills and then acidulated to make crude tall oil. The crude tall oil is a mixture of fatty acids, rosin and other neutral materials. The CTO can be further refined through the fractionation process to separate it into the components of tall oil fatty acid, tall oil rosin, distilled tall oil, pitch and heads.
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