Tall oil pitch, which is the residual mixture in the extraction process to produce fatty acid and resin from crude tall oil and is also a by-product of paper-making industry.

本研究系用造纸工业附产品塔尔油，被提取脂肪酸、松香之后下余的混合物—浮油沥青。

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The residual mixture in the extraction process to produce fatty acid and resin from crude tall oil which is a by-product of paper-making industry, is called tall oil pitch.

造纸工业副产品粗塔罗油被提取脂肪酸、松香、油头之后下余的混合物称为浮油沥青。

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