FIELD: chemistry.
SUBSTANCE: invention refers to the method for preparation of polymer-clayish composition which can be used in different branches of industry as sorbent for water purification and decontamination. According to the invention the surface activator - guanidine-containing salt with quaternary nitrogen atom is added to bentonite clay and then the activated surface is treated with unsaturated organic acid (acrylic or metacrylic) in presence of radical initiator of polymerisation - ammonium persulphate. The mixture is heated at temperature 60-70°C with stirring up to polymerisation of unsaturated organic acid. The mass ratio of activated bentonite clay to unsaturated organic acid is 1:1÷2.
EFFECT: simplifying of the process of bentonite surface activation, enhancing of sorption activity, improvement of bentonite performance as well as transfer to bentonite composition of biocide properties.
3 tbl, 9 ex, 1 dwg
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| NUCLEOPHILIC METHOD FOR OBTAINING ORGANOPHILIC BENTONITE CLAY | 2022 |
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