METHOD OF MANUFACTURING CARBONACEOUS FIBROUS MATERIAL Russian patent published in 2004 - IPC

Abstract RU 2231583 C1

FIELD: composite materials.

SUBSTANCE: invention relates to manufacture of cellulose material-based carbonaceous fibrous materials suitable for use as domestic- and medicinal-destination conductive elements and sorbents. Method comprises treating cellulose material with 10-19% aqueous catalyst solution, in particular ammonium chloride/synergetic (urea or ammonium orthoborate) mixture, until content of catalyst on fiber achieves 5 to 20%, followed by heat treatment in air (from 20оС to 95±5оС) and in an inert medium (from 95±5оС to 450-3000оС) while gradually raising temperature, said heat treatment being performed with cellulose material containing no organosilicon compounds. Material subjected to above heat treatment undergoes supplementary heat treatment at 750-900оС in activation agent medium to produce sorption-active carbonaceous materials.

EFFECT: increased yield of carbonaceous fibrous materials showing various properties and manufactured according to the same process flowsheet.

2 cl, 3 tbl, 76 ex

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RU 2 231 583 C1

Authors

Lysenko A.A.

Astashkina O.V.

Piskunova I.A.

Mukhina O.Ju.

Shvagurtseva L.V.

Jakobuk Anatolij Alekseevich

Polkhovskij Mikhail Vasil'Evich

Grinevich Petr Nikolaevich

Krjuchkov Oleg Valer'Evich

Dokuchaev Vladimir Nikolaevich

Dates

2004-06-27Published

2002-11-05Filed