METHOD FOR PREPARING PHYTOSORBENT Russian patent published in 2006 - IPC B01J20/24 

FIELD: vegetable materials, sorbents.

SUBSTANCE: invention relates to technology for preparing vegetable-base phytosorbents that can be used in treatment of aqueous solution for contaminants. Proposed method involves using as the parent vegetable raw the oil cake representing waste in the process for pumpkin seeds processing and spotted milk thistle plant for preparing the complex non-refined vegetable oil from pumpkin-milk thistle. Waste is washed out with water, dried firstly at temperature 60-65°C for 2-3 h and then at 100-105°C up to the constant mass followed by milling and dispersing, and fraction of size 0.2-2 mm is selected. Method provides treatment of aqueous solution from, for example, copper and cadmium and methylene blue with the sorption capacity values 3.8-4.0 and 0.5 mg/g. respectively.

EFFECT: improved preparing method, valuable properties of phytosorbent.

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