Method for removing lignin from water

Details Method for removing lignin from water Method for removing lignin from water

D - Textiles, Paper

21

C

D21C 9/10 (2006.01) C02F 1/52 (2006.01)

Patent

CA 2573035

The invention relates to a method for removing lignin from an aqueous solution. It is accomplished by adding a calcium compound and an aluminium compound to said solution. Said calcium compound is preferably calcium chloride and said aluminium compound is preferably a polymeric aluminium hydroxide salt.

L'invention concerne un procédé pour évacuer la lignine contenue dans une solution aqueuse. On met en oeuvre ce procédé en ajoutant à ladite solution un composé de calcium et un composé d'aluminium. Le composé de calcium est de préférence un chlorure de calcium, et le composé d'aluminium est de préférence un sel d'hydroxyde d'aluminium polymérique.

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