METHOD OF WATER CLEANING Russian patent published in 2018 - IPC C02F1/28 C02F1/54 C01F11/18 

Abstract RU 2674133 C1

FIELD: chemical industry.

SUBSTANCE: invention can be used in chemical industry and water treatment. Calcium carbonate-reacted mineral material and/or precipitated calcium carbonate reacted on the surface is coated with at least one anionic polymer with a total negative charge density ranging from 1 mceq/g to 15,000 mceq/g. Resulting calcium carbonate-containing material with a surface coating is used to purify water, dewatering sediments or suspended sediments.

EFFECT: claimed group of inventions provides increased flocculation efficiency, promotes dehydration or filtration of sediments or suspended sediments.

21 cl, 7 ex, 3 tbl

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RU 2 674 133 C1

Authors

Poffet Martine

Jaeggi Pascal

Gerard Daniel E.

Hess Peter

Dates

2018-12-04Published

2016-03-03Filed