FORMALDEHYDE-FREE LIGNIN-AMINE COAGULANTS

A method for making lignin-amines is provided. The method comprises providing a lignin; then modifying the lignin with modifier to create a modified lignin; and then reacting the modified lignin with an amine to form a lignin-amine. Suitable modifiers comprise acrylates. A method for coagulating sus...

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Bibliographic Details
Main Authors LEWIS, Larry, Neil, PENG, Wenqing, DONG, Hongchen
Format Patent
LanguageEnglish
French
German
Published 22.05.2019
Subjects
CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Summary:A method for making lignin-amines is provided. The method comprises providing a lignin; then modifying the lignin with modifier to create a modified lignin; and then reacting the modified lignin with an amine to form a lignin-amine. Suitable modifiers comprise acrylates. A method for coagulating suspended materials in a water stream is also disclosed. The method comprises providing a water stream and contacting the suspended materials in the water stream with at least one lignin-amine.
Bibliography:Application Number: EP20120812485