Sepiolite and Related Compounds: Its Stability and Application

Cambridge University Press (CUP) - 1961
A. Preisinger1
1Mineralogisches Institut, Universität Wien, Vienna, Austria

Tóm tắt

AbstractThe unit-cell characteristics and structures of sepiolite, ferri-sepiolites (xylotile, mountain wood, gunnbjarnite), loughlinite and palygorskite (attapulgite) and their structural relationships are discussed. The chemical, morphological and thermal properties are explained by their structures. The unit-cell characteristics and structures of sepiolite “anhydride”, loughlinite “anhydride” and palygorskite “anhydride” are given. Under low water vapor pressure the phase transformations sepiolite to sepiolite “anhydride” and palygorskite to palygorskite “anhydride” are reversible. It was not possible to synthesize sepiolite in the system MgO−SiO2−H2O under confined pressure within a range of 80° to 300°CThe possibility of the application of sepiolite and related compounds in industry, specially in the automobile industry, is referred to.

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Tài liệu tham khảo

Bradley, 1940, The structural scheme of attapulgite, Amer. Min., 25, 405

Preisinger, 1959, Clays and Clay Minerals, 61

Strunz, H. (1957) Gunnbjarnit, ein Ierri-Sepiolith: N. Jahrb. f. Min. Monatsh. pp. 75–77.

10.1007/BF01128033

10.1111/j.1151-2916.1960.tb13610.x

Kulbicki, 1959, High temperature phases in sepiolite, attapulgite and saponite, Amer. Min., 44, 752

Fahey, 1960, Loughlinite, a new hydrous sodium magnesium silicate, Amer. Min., 45, 270

Doelter, 1917, Handbuch der Mineralchemie, 2, 670

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Cambridge University Press (CUP)

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