The preparation of an active absorbent of hydrogen sulphide from waste oxide of iron

✍ Scribed by Whalley, H. K.

• Publisher: Wiley (John Wiley & Sons)
• Year: 1946
• Weight: 595 KB
• Volume: 65
• Category: Article
• ISSN: 0368-4075
• DOI: 10.1002/jctb.5000650801

✦ Synopsis

iron oxi&. which L a by-product in the extraction of alumina h%%b, m valuebr an ab.orben( for h dngen rdphide. Attempk to .ctiv.b the r u b oxide by lirnpb chemicartmatmenta wem umucceuful. Putul raluctim in ral gy folbwcd by oxidation with &, gave thmo r""p of osidm mboring high activity, high capcity and rapid mdrr Uity. f h d y of the ab.Orptio0 and rsactivatiw mtiona &owed that ml Idation occuncd in two 'tap : fint. a rapid logarithmio mattion, f o % d by a dower aubcatalytic aborption. If the reaction were .bppcd oe compktim of the fimt w e , and the material then revivified, the multant oxide .bowed tbe awond aut0r.t.I ic stage. Ruggentionn for tbs m m ~r n m of tim c-involvMt am A a n c a i . Tbs activated ox& wam .born b be hetter t b n aU of a number of com-merCti atmcwhentr examimd. ex-for om admixed with peat. and eveo withthir high-@ nubrial t ~c o m p u L o n w u n d t o o u l l r a v o ~l k .

Zntmtiucfim.-The ~~t e product from bauxite, after the CXtraCtion of aI&m by the wet method, is impure ferric oxide, commonly known M red mud. 1ta composition is FeaOs, 5 6 4 % ;