Mixed alkali metal-magnesium salt of crosslinked starch...

Details Mixed alkali metal-magnesium salt of crosslinked starch... Mixed alkali metal-magnesium salt of crosslinked starch...

C - Chemistry, Metallurgy

08

B

260/221.3

C08B 31/06 (2006.01) C02F 1/28 (2006.01)

Patent

CA 1063103

MIXED ALKALI METAL-MAGNESIUM SALT OF CROSSLINKED STARCH XANTHATE AND PROCESS OF PREPARATION ABSTRACT Mixed alkali metal (sodium or potassium)-magnesium salts of crosslinked starch xanthates are prepared by incorporating a critical amount of a water-soluble magnesium salt (e.g. magnesium sulfate) in the reaction slurry prior to dewatering the xanthated starch. The rate of dewatering by filtration or centrifugation is accelerated, and the resulting product has improved properties for use in removing heavy metal ions from aqueous solutions.

279760

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