FIELD: chemical industry; production of sorbents obtained from cellulose-containing materials and used for cleaning various surfaces from petroleum products.
SUBSTANCE: cellulose-containing material is subjected to extrusion at simultaneous auto-hydrolysis at temperature not below 100°C and pressure no less than 10 Mpa at mechanical shear-compressive strain.
EFFECT: reduction of time required for performing the process; reduced power requirements.
5 cl, 5 ex
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