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Nature, 1950
MONTMORILLONITE is known to be capable of forming organic complexes of two kinds, one due to a cation-exchange reaction1 and the other to the interlamellar adsorption of complete molecules2,3. Halloysite has also been reported as giving complexes of the latter type2, and recently also vermiculite4,5. Using a typical vermiculite, complexes of both types
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MONTMORILLONITE is known to be capable of forming organic complexes of two kinds, one due to a cation-exchange reaction1 and the other to the interlamellar adsorption of complete molecules2,3. Halloysite has also been reported as giving complexes of the latter type2, and recently also vermiculite4,5. Using a typical vermiculite, complexes of both types
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Clays and clay minerals (National Conference on Clays and Clay Minerals), 1954
Hydrothermal techniques have been used to study the stability and transformations in vermiculite. Partial dehydration occurs first at 550° C and completely nonexpanding structures are obtained first at 650° C at 1,000 atmospheres water pressure. Above 350° C (and rapidly near 400° C) a transformation of the vermiculite to a “chlorite-like” phase takes ...
R. Roy, L. A. Romo
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Hydrothermal techniques have been used to study the stability and transformations in vermiculite. Partial dehydration occurs first at 550° C and completely nonexpanding structures are obtained first at 650° C at 1,000 atmospheres water pressure. Above 350° C (and rapidly near 400° C) a transformation of the vermiculite to a “chlorite-like” phase takes ...
R. Roy, L. A. Romo
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Treatment of oily waters using vermiculite
Water Research, 2005The main objective of this study was to examine the removal of oil from water by expanded and hydrophobized vermiculite. A pH of 9 showed a higher removal efficiency of oil by vermiculite. Oil removal efficiencies at pH 9 were found to be 79%, 93%, 90%, 57% for standard mineral oil (SMO), Canola oil (CO), Kutwell oil (KUT45), refinery effluent (RE ...
Deepa, Mysore +2 more
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Vermiculite: A Review of the Mineralogy and Health Effects of Vermiculite Exploitation
Regulatory Toxicology and Pharmacology, 1995Vermiculite is a mica-type mineral that is being used in increasing quantities for insulation, in composite cements, and in horticulture. No serious health risks have been found resulting from the exposure to vermiculite alone nor are any anticipated in view of its long-term chemical durability, even with respect to fibers of vermiculite.
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Mechanically treated vermiculite particles in PCL/vermiculite thin films
Materials Today: Proceedings, 2022Karla Čech Barabaszová +3 more
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Nature, 1949
GRUNER1 has shown that vermiculite consists of talc-like layers, 9·26 A. high, alternating with water layers (4·95 A.), the total water content of the mineral being in the region of 20 per cent. Theories2,3 as to the nature of the water layers have found difficulty in explaining the observation1,2,3 that, when vermiculite is heated at 110° C., about ...
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GRUNER1 has shown that vermiculite consists of talc-like layers, 9·26 A. high, alternating with water layers (4·95 A.), the total water content of the mineral being in the region of 20 per cent. Theories2,3 as to the nature of the water layers have found difficulty in explaining the observation1,2,3 that, when vermiculite is heated at 110° C., about ...
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