Clays from the lignite mining district in the Rhineland – new raw materials for building ceramics!?

In the scope of a study commissioned by RWE Power AG, studies were conducted at the FGK research institute on the ceramic suitability of clay raw materials from open lignite mines. In ongoing surface mining, clays are recovered from several-metres-thick and homogeneous mining horizons. The individual horizons differ in their chemical composition and mineralogy, as a result of which a wide and varied spectrum of potentially usable raw materials is obtained. The clays were first analysed in chemical-physical processes. Then their ceramic processing properties were tested and fired samples assessed. The results showed that the properties of the clays meet quality requirements in different ceramic segments. With regard to sustainable supply of raw materials, it would therefore be expedient to utilize these clays in higher-value applications.

Stefan Ginzel (M. Sc.), Forschungsinstitut für Anorganische Werkstoffe - Glas/Keramik-GmbH, Höhr-Grenzhausen

x

Related articles:

Issue 2016-6

New website for the Marcheluzzo Ceramic Division

Marcheluzzo launched a new website for its Ceramic Division. Under the web address //www.marcheluzzo.com:www.marcheluzzo.com:www.marcheluzzo.com|_blank)$ both of the company’s portals are accessible:...

more
Issue 2008-12 Raw materials extraction, Raw materials haulage

Goerg & Schneider buys “Stoss” deposit and mining operations

Goerg & Schneider GmbH u. Co. KG, the clay mining company based in Siershahn/Westerwald, has acquired the “Stoss” deposit and mining operations in Haiger-Langenaubach (in the north-east of the...

more
Issue 2019-6

Witgert commissions new raw materials hall

Arno Witgert has been mining clay since 1820, making it one of the oldest clay mining companies still in operation in the Westerwald region. In recent decades, emphasis has centred on processing...

more
Issue 2020-1 3 to 5 March 2020

Indian Ceramics Asia introduces segment for finished goods

From 3 to 5 March 2020, the 15th Indian Ceramics Asia – India’s leading B2B trade fair for ceramic raw materials, ceramics machinery and ceramics technology – is taking place at the Exhibition...

more
Issue 2015-7

Goerg & Schneider presenting broad range of raw materials

Goerg & Schneider is presenting a broad range of raw materials including raw clays, fireclays, powdered clays and bodies for sundry structural ceramics, earthenware and porcelain stoneware, and...

more