SURFACE-REACTED CALCIUM CARBONATE IN COMBINATION WITH HYDROPHOBIC ADSORBENT FOR WATER TREATMENT Russian patent published in 2012 - IPC C02F1/28 B01J20/02 B01J20/16 

Abstract RU 2463256 C2

FIELD: chemistry.

SUBSTANCE: present invention relates to a method of reducing the amount of organic compounds in water. Surface-reacted natural calcium carbonate and a hydrophobic adsorbent, selected from a group consisting of talc, hydrophobised calcium carbonate, hydrophobised bentonite, hydrophobised kaolinite, hydrophobised glass or any mixture thereof, are brought into contact with the water to be purified. The surface-reacted natural calcium carbonate in form of a suspension, having pH higher than 6.0, is a product of reaction of natural calcium carbonate with an acid and carbon dioxide.

EFFECT: invention provides efficient purification from a range of organic substances and simple purification.

31 cl, 2 dwg, 1 tbl, 3 ex

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RU 2 463 256 C2

Authors

Gejn Patrik A. K.

Gantenbajn Daniehl'

Shelkopf Joakhim

Dates

2012-10-10Published

2008-06-06Filed