METHOD OF PRODUCING CARBON MOLECULAR SIEVE Russian patent published in 2016 - IPC C01B31/08 B01J20/20

Abstract RU 2578147 C1

FIELD: chemistry.

SUBSTANCE: invention relates to production of carbon sorbents with molecular sieve properties. Method involves fine grinding of hard coal of grade SSOM or SSPK. Obtained dust is mixed with coal-tar resin, containing coke in amount of not less than 15 %, and potash. Composition is moulded, followed by drying, carbonisation, devolatilisation and activation. Carbonisation is conducted at a temperature of 450-500 °C with heating rate of not more than 5 °C per minute. Activation is carried out at 900 °C to ablation in range of 5-10 %.

EFFECT: invention provides a sorbent suitable for separation of molecules in gaseous media.

1 cl, 3 tbl

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RU 2 578 147 C1

Authors

Zorina Evgenija Ivanovna

Farberova Elena Abramovna

Dates

2016-03-20—Published

2015-02-13—Filed