Tschernichite, the mineral analogue of zeolite Beta

Smith, J. V.; Pluth, J. J.; Boggs, Russell C.; Howard, D.

doi:10.1039/c39910000363

Cited by 43 publications

(17 citation statements)

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“…It should be noted, however, that the addition of OSDA can significantly speed up the crystallization process or may still be required to obtain alternative framework compositions for the above-mentioned topologies [28,36]. An indication that OSDAs are not strictly indispensable for Beta zeolite synthesis, appeared with the discovery of Tschernichite, the natural mineral analogue of Beta zeolite [37].…”

Section: Osda-free Synthesis Of Beta Zeolitementioning

confidence: 99%

Catalytic applications of OSDA-free Beta zeolite

Baerdemaeker

Yilmaz

Müller

et al. 2013

Journal of Catalysis

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Zeolite Beta obtained from seeded synthesis without the use of organic structure directing agents (OSDA) has been used as a catalyst in different types of reactions. The large number of strong acid sites resulted in a high activity for the alkylation of benzene with ethene and a high cracking activity in the hydroconversion of n-decane. However, the high framework polarity resulted in fast deactivation in the acylation of aromatic ethers. Dealumination treatments resulted in improved stability in alkylation reactions with the more reactive olefins like propene. In acylation reactions, the activity was significantly increased and in hydroconversion, a better balance between the hydrogenation/dehydrogenation and the acid sites was obtained.

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Section: Osda-free Synthesis Of Beta Zeolitementioning

confidence: 99%

Catalytic applications of OSDA-free Beta zeolite

Baerdemaeker

Yilmaz

Müller

et al. 2013

Journal of Catalysis

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“…Ca [A12Si6016].~8H20 Z = 8 BEA Smith et aL (1991), Boggs et al (1993). Type locality: Goble Creek, 0.2 km north of Goble, Columbia County, Oregon, U.S.A. Named after Rudy W. Tschernich, zeolite investigator of the American Pacific Northwest, who discovered the mineral.…”

Section: Tschemichitementioning

confidence: 99%

Recommended nomenclature for zeolite minerals: report of the subcommittee on zeolites of the International Mineralogical Association, Commission on New Minerals and Mineral Names

Coombs

Alberti²,

Armbruster³

et al. 1998

Mineral. mag.

236

120

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This report embodies recommendations on zeolite nomenclature approved by the International Mineralogical Association, Commission on New Minerals and Mineral Names. In a working definition of a zeolite mineral used for this review, structures containing an interrupted framework of tetrahedra are accepted where other zeolitic properties prevail, and complete substitution by elements other than Si and Al is allowed. Separate species are recognized in topologically distinctive compositional series in which different extra-framework cations are the most abundant in atomic proportions. To name these, the appropriate chemical symbol is attached by a hyphen to the series name as a suffix, except for the names harmotome, pollucite and wairakite in the phillipsite and analcime series. Differences in space-group symmetry and in order-disorder relationships in zeolites having the same topologically distinctive framework do not in general provide adequate grounds for recognition of separate species. Zeolite species are not to be distinguished solely on the ratio Si : Al except for heulandite (Si : Al < 4.0) and clinoptilolite (Si : Al ≥ 4.0). Dehydration, partial hydration, and overhydration are not sufficient grounds for the recognition of separate species of zeolites. Use of the term "ideal formula" should be avoided in referring to a simplified or averaged formula of a zeolite. Newly recognized species in compositional series are as follows: brewsterite-Sr, -Ba, chabazite-Ca, -Na, -K, clinoptilolite-K, -Na, -Ca, dachiardite-Ca, -Na, erionite-Na, -K, -Ca, faujasite-Na, -Ca, -Mg, ferrierite-Mg, -K, -Na, gmelinite-Na, -Ca, -K, heulandite-Ca, -Na, -K, -Sr, levyne-Ca, -Na, paulingite-K, -Ca, phillipsite-Na, -Ca, -K, and stilbite-Ca, -Na. Key references, type locality, origin of name, chemical data, IZA structure-type symbols, space-group symmetry, unit-cell dimensions, and comments on structure are listed for 13 compositional series, 82 accepted zeolite mineral species, and three of doubtful status. Herschelite, leonhardite, svetlozarite, and wellsite are discredited as mineral species names. Obsolete and discredited names are listed.Keywords: zeolite nomenclature, herschelite, leonhardite, svetlozarite, wellsite, brewsterite, chabazite, clinoptilolite, dachiardite, erionite, faujasite, ferrierite, gmelinite, heulandite, levyne, paulingite, phillipsite, stilbite. SOMMAIRECe rapport contient les recommandations à propos de la nomenclature des zéolites, telles qu'approuvées par l'Association minéralogique internationale, commission des nouveaux minéraux et des noms de minéraux. Dans la définition d'une zéolite retenue ici, les structures contenant une trame interrompue de tétraèdres sont acceptées dans les cas où les autres propriétés satisfont les critères de cette famille de minéraux. De plus, il peut y avoir remplacement complet de Si et Al par d'autres éléments. Des espèces distinctes font partie de séries de compositions dont l'agencement topologique est le même, le cation dominant ne faisant pas partie de la trame ...

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“…Ca[Al 2Si6O16] .~8 H2O Z = 8 BEA Smith et al (1991), Boggs et al (1993). Type locality: Goble Creek, 0.2 km north of Goble, Columbia County, Oregon, U.S.A. Named after Rudy W. Tschernich, zeolite investigator of the American Pacific Northwest, who discovered the mineral.…”

Section: Tschernichitementioning

confidence: 99%

Recommended nomenclature for zeolite minerals: Report of the Subcommittee on Zeolites of the International Mineralogical Association, Commission on New Minerals and Mineral Names

Coombs

Alberti²,

Armbruster³

et al. 1998

ejm

142

101

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This report embodies recommendations on zeolite nomenclature approved by the International Mineralogical Association Commission on New Minerals and Mineral Names. In a working definition of a zeolite mineral used for this review, interrupted tetrahedral framework structures are accepted where other zeolitic properties prevail, and complete substitution by elements other than Si and Al is allowed. Separate species are recognized in topologically distinctive compositional series in which different extra-framework cations are the most abundant in atomic proportions. To name these, the appropriate chemical symbol is attached by a hyphen to the series name as a suffix except for the names harmotome, pollucite and wairakite in the phillipsite and analcime series. Differences in space-group symmetry and in order-disorder relationships in zeolites having the same topologically distinctive framework do not in general provide adequate grounds for recognition of separate species. Zeolite species are not to be distinguished solely on Si : Al ratio except for the heulandite (Si : Al < 4.0) and clinoptilolite (Si : Al ≥ 4.0) series. Dehydration, partial hydration, and over-hydration are not sufficient grounds for the recognition of separate species of zeolites. Use of the term "ideal formula" should be avoided in referring to a simplified or averaged formula of a zeolite. Newly recognized species in compositional series are as follows:

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Tschernichite, the mineral analogue of zeolite Beta

Cited by 43 publications

References 1 publication

Catalytic applications of OSDA-free Beta zeolite

Catalytic applications of OSDA-free Beta zeolite

Recommended nomenclature for zeolite minerals: report of the subcommittee on zeolites of the International Mineralogical Association, Commission on New Minerals and Mineral Names

Recommended nomenclature for zeolite minerals: Report of the Subcommittee on Zeolites of the International Mineralogical Association, Commission on New Minerals and Mineral Names

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