Separating lignin solids and black liquor

Details Separating lignin solids and black liquor Separating lignin solids and black liquor

C - Chemistry, Metallurgy

08

L

C08L 97/00 (2006.01) C08L 97/02 (2006.01) C07G 1/00 (2006.01)

Patent

CA 2285276

The separation of black liquor, containing lignin, from tall oil is enhanced by the addition of a separation aid. The separation aid is an alkylphenol- Formaldehyde resin ethoxylate, an ethanol amine condensate, or combination thereof.

L'ajout d'un auxiliaire de séparation accentue la séparation de la liqueur noire, renfermant de la lignine, du tallöl. Cet auxiliaire de séparation est un éthoxylate d'une résine d'alkylphénol-formaldéhyde, un condensat d'éthanolamine, ou une combinaison de ces deux composés.

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