Beneficiation of glass-making sands in a hydrocyclone

Khramov, P. G.; Sokolov, I. G.

doi:10.1007/bf00672359

Cited by 1 publication

(1 citation statement)

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“…These devices are usually utilised in the removal of impurities in minerals such as clays, kaolin, feldspar, glass, etc. (Al-Momani and Khoury, 2010; Bradley, 2013; Khramov and Sokolov, 1956;Rao and Vibhuti, 2004;Scott and Bristow, 2002).…”

Section: Methodsmentioning

confidence: 99%

Ceramic porcelain stoneware production with Spanish clays purified by means of the removal of iron compounds and organic matter using physical methods

Barrachina

Calvet

Fraga

et al. 2017

Applied Clay Science

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As the production of ceramic porcelain stoneware in Spain is totally conditioned by the importation of ball clays, because of the lack of adequate Spanish ball clays, this work has focused on the formulation of ceramic porcelain body from Spanish clays purified by means of physical removal processes. This method was applied to three Spanish clays containing common clay impurities of iron (hematite and siderite) and organic matter. Iron removal was carried out using the wet sieve method, the hydrocycloning method and the electromagnetic filtering method, obtaining a reduction in iron content of up to 80 wt%, while the clay containing organic matter was treated thermally at 400ºC for 30 minutes so as to leave it almost completely purified. These treated clays, after being characterized (chemical and mineralogical composition, plasticity, organic carbon, thermal behaviour and colour), were used in the porcelain stoneware body composition instead of imported clays, the result being a composition capable of substituting the standard porcelain stoneware formulation in terms of sintering, morphology, colour, flexural strength and dilatometry.

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Section: Methodsmentioning

confidence: 99%