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A low cost adsorbent from spent bleaching earth. II—optimisation of the zinc chloride activation procedure
Author(s) -
Pollard Simon J. T.,
Sollars Christopher J.,
Perry Roger
Publication year - 1991
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.280500212
Subject(s) - adsorption , zinc , phenol , aqueous solution , chloride , chemistry , activated carbon , inorganic chemistry , nuclear chemistry , chemical engineering , organic chemistry , engineering
A set of optimised preparative parameters has been established for the zinc chloride activation of spent bleaching earth. Continuous volumetric nitrogen adsorption and aqueous phase phenol isotherms are used to characterise a range of adsorbents prepared using the rotary furnace. A structural model is proposed for these clay‐carbon materials and the key factors affecting their adsorptive capacity are discussed.