Author:
Harutyunyan L.R., ,Tangamyan L.S.,Petrosyan H.R.,Adamyan R.K.,Sargsyan H.H.,Harutyunyan R.S., , , , ,
Abstract
The effectiveness of sulfur anhydride sorption from roasted molybdenum concentrate gaseous wastes by modified natural zeolites has been studied. Clinoptilolite from Nor Koghb deposit (Noyemberyan, Armenia) has been used as natural zeolite. The modification of zeolite has been done by thermic, acidic and alkaline treatments. It has been established that both thermally and chemically modified zeolites of Nor Koghb deposit are effective sorbents for sorption of sulfur anhydride; moreover, it is determined that the alkaline modified samples of zeolite have the highest sorption ability. Sulfur anhydride has been produced by the three following sources: pure molybdenum disulfate, non-treated molybdenum concentrate from Zangezur Copper Molybdenum Combine (Armenia) and the same molybdenum concentrate after thermal treatment. The highest effectiveness of sulfur anhydride sorption is obtained when pure molybdenum disulfide is used as a sulfur anhydride source. This result is quite predictable because pure molybdenum disulfide practically all turns to sulfur anhydride while additives are present in molybdenum concentrate, which do not produce sulfur anhydride.
Publisher
SHEI Ukrainian State University of Chemical Technology
Subject
Materials Chemistry,General Chemical Engineering,Environmental Chemistry,General Chemistry
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