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US 2026/0201271 A1Published application
Fractionation of crude tall oil
AssigneeStora Enso OYJ
InventorsJari Kavakka, Staffan Torssell
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Abstract
The present invention is directed to fractionation of crude tall oil, which originates from the Kraft process black liquor. In the method according to the present invention, at least two strongly basic anion exchange resins are used to efficiently separate fractions from the crude tall oil.
Claims11
A process for separating components from crude tall oil comprising the steps of
- a) providing a mixture comprising crude tall oil and an alcohol selected from a group consisting of:
- methanol, ethanol, iso-propanol, and combinations thereof,
- b) bringing the mixture from step a) into contact with a strongly basic anion exchange resin,
- c) recovering at least a first fraction and a second fraction, wherein each fraction comprises at least one component,
- d) bringing the first fraction recovered step c) into contact with a second strongly basic anion exchange resin, and
- e) recovering a neutral fraction and a neutral-depleted fraction.
3 more elements
Dependencies are inferred from the claim text.