FIELD: chemistry.
SUBSTANCE: method of obtaining cellulose from brown algae includes delignification of crushed raw material by boiling in 4-6% solution of sulphuric acid at hydromodulus 1:45-55 for 5-10 min, separation and washing of solid residue with further boiling in 2.5-5.0% solution of potassium hydroxide at hydromodulus 1:50-60 for 5-10 min, washing and air drying of separated target product.
EFFECT: reduction of technological process duration, increase of output and quantity of commercial product, obtained from brown algae, and extension of raw material base.
2 cl, 2 ex
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