Title:
PRODUCTION OF FIRED CERAMIC ARTICLES FROM A MIXTURE COMPRISING CLAY AND ZEOLITE
Document Type and Number:
WIPO Patent Application WO/2012/010845
Kind Code:
A3
Abstract:
A method of producing a fired ceramic article comprises the steps of: (i) preparing a clay composition by adding a zeolite and preferably also a sodium compound to a clay and admixing the clay, the zeolite and (if used) the sodium compound to produce said composition; (ii) forming the composition produced in step (i) into a preform of a predetermined shape corresponding to that of the article; (iii) drying the preform; and (iv) firing the preform to produce the ceramic article. The method reduces the firing temperature required to produce the ceramic article and inclusion of the sodium compound provides the advantage of reducing, minimising or eliminating the amount of water required during the blending step (i.e. step (i)). The method also reduces fluoride emissions during the firing step (i.e. step (iv)).
Inventors:
DE WITTE MARK (BE)
THORPE MALCOM JOHN (GB)
WIEGERS ROBERT BENNO (NL)
SIJBERS-WISMANS MARIA GEERTRUIDA JOHANNA (NL)
THORPE MALCOM JOHN (GB)
WIEGERS ROBERT BENNO (NL)
SIJBERS-WISMANS MARIA GEERTRUIDA JOHANNA (NL)
Application Number:
PCT/GB2011/001098
Publication Date:
September 07, 2012
Filing Date:
July 22, 2011
Export Citation:
Assignee:
IBR CONSULT B V (NL)
DE WITTE MARK (BE)
THORPE MALCOM JOHN (GB)
WIEGERS ROBERT BENNO (NL)
SIJBERS-WISMANS MARIA GEERTRUIDA JOHANNA (NL)
DE WITTE MARK (BE)
THORPE MALCOM JOHN (GB)
WIEGERS ROBERT BENNO (NL)
SIJBERS-WISMANS MARIA GEERTRUIDA JOHANNA (NL)
International Classes:
C04B33/13; C04B33/08; C04B33/30; C04B33/32; C04B35/626; C04B35/63
Domestic Patent References:
| WO1999005063A1 | 1999-02-04 |
Foreign References:
| JP2008127259A | 2008-06-05 | |||
| US2318753A | 1943-05-11 | |||
| JPH1135381A | 1999-02-09 |
Other References:
DEMIRKIRAN A S ET AL: "Effect of natural zeolite addition on sintering kinetics of porcelain bodies", JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, ELSEVIER, NL, vol. 203, no. 1-3, 18 July 2008 (2008-07-18), pages 465 - 470, XP022681326, ISSN: 0924-0136, [retrieved on 20071030], DOI: 10.1016/J.JMATPROTEC.2007.10.053
DATABASE WPI Week 198124, Derwent World Patents Index; AN 1981-43679D, XP002662590
DATABASE WPI Week 200169, Derwent World Patents Index; AN 2001-605807, XP002662605
DATABASE WPI Week 198124, Derwent World Patents Index; AN 1981-43679D, XP002662590
DATABASE WPI Week 200169, Derwent World Patents Index; AN 2001-605807, XP002662605
Attorney, Agent or Firm:
ATKINSON, Peter (1 New York Street, Manchester M1 4HD, GB)
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