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Preparation of zeol...
Preparation of zeolite A with excellent optical properties from clay
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- Garcia, Gustavo (författare)
- Luleå tekniska universitet,Kemiteknik
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- Aguilar, Wilson (författare)
- Luleå tekniska universitet,Kemiteknik
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- Carabante, Ivan (författare)
- Luleå tekniska universitet,Geovetenskap och miljöteknik
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- Cabrera, Saúl (författare)
- Chemistry Research Institute IIQ, San Andres Mayor University UMSA, La Paz
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- Hedlund, Jonas (författare)
- Luleå tekniska universitet,Kemiteknik
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- Mouzon, Johanne (författare)
- Luleå tekniska universitet,Kemiteknik
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(creator_code:org_t)
- Elsevier BV, 2015
- 2015
- Engelska.
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Ingår i: Journal of Alloys and Compounds. - : Elsevier BV. - 0925-8388 .- 1873-4669. ; 619, s. 771-777
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Discoloration of zeolite A powder is a common problem when natural raw materials such as kaolin clay are used because of the formation of colored iron compounds. In this study, we report on a novel method to produce zeolite A with excellent optical properties, from clays. The brightness is as high as 94.5 and the yellowness is as low as 3.0. The product is comprised of intergrown zeolite A crystals with cubic habit and a length ranging between 0.5 and 2 μm. Good optical properties are obtained when the raw material contains magnesium, as some natural raw materials do, or alternatively, when a magnesium compound is added to the raw material. Magnesium probably forces iron inside colorless extraneous magnesium aluminosilicate compounds. This simple process appears very promising for the preparation of zeolite A with good optical properties from inexpensive natural raw materials.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Kemiska processer (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Chemical Process Engineering (hsv//eng)
Nyckelord
- Chemical Technology
- Kemisk teknologi
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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