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Zawartość zarchiwizowana w dniu 2019-03-12

REFINEMENT AND ENRICHMENT OF CLAY AND KAOLIN RAW MATERIALS BY DRESSING PROCESSES

Cel



ADOPTION OF THE RAW MATERIALS QUALITY TO THE REQUIREMENTS OF NEW TECHNOLOGIES IN CERAMIC INDUSTRY.

THE AIM OF THE RESEARCH IS TO ASCERTAIN:

- WHICH PROPERTIES OF CLAY RAW MATERIALS DETERMINE THE FIELD OF APPLICATION AND HOW THIS DEPENDS ON THE MINERAL COMPOSITION;
- WHICH PROCESSING METHODS, FOR A GIVEN MINERAL CONTENT, CAN CHANGE THE COMPOSITION OF SUCH A RAW MATERIAL;
- HOW THE PROPERTIES OF RAW MATERIALS CAN BE CHANGED;
- HOW RAW MATERIALS FOR USE IN SPECIAL CERAMIC TECHNOLOGIES.
THE RESEARCH INCLUDES THE FOLLOWING STEPS:
- DETERMINATION OF THE COMPOSITION OF THE CRUDE RAW MATERIALS: MINERAL AND CHEMICAL COMPOSITION BY MEANS OF X-RAY DIFFRACTION, THERMAL ANALYSIS, IR-SPECTROSCOPY, SEM- AND POL-MICROSCOPY;
- DETERMINATION OF THE GRAIN-SIZE DISTRIBUTION OF THE MINERALS WITHIN THE GRAIN-SIZE DISTRIBUTION OF THE BULK MATERIAL BY MEANS OF ATTERBERG SEDIMENTATION AND X-RAY SEDIGRAPH;
- DETERMINATION OF THE PROPERTIES WHICH ARE RELEVANT FOR SPECIAL APPLICATIONS SUCH AS STRENGTH OF UNFIRED BODIES, VISCOSITY, DENSIFICATION BY THE FORMING PROCESSES, FIRING PROPERTIES AND THE INTERDEPENDENCES OF THE COMPOSITION;
- ENRICHMENT OF DESIRED COMPONENTS AND REMOVAL OF UNDERSIRED COMPONENTS ON THE BASIS OF THE KNOWLEDGE OF THE RESEARCH MENTIONED ABOVE BY CENTRIFUGING, FLOTATION, SLURRY-PROCESSES, MAGNETIC SEPARATION;
- DETERMINATION OF THE PROPERTIES OF PREPARED MATERIALS WITH METHODS SUCH AS THOSE DESCRIBED FOR THE RAW MATERIALS;

THIS RESEARCH PROJECT IS PART OF A COMMON PROGRAMME THAT HAS BEEN DRAW UP BY SEVERAL WELL-EQUIPPED RESEARCH CENTRES IN THE COMMUNITY TO WORK ON A CERTAIN NUMBER OF RAW MATERIALS.
THE RESEARCH HAS BEEN DISTRIBUTED AS FOLLOWS:
MINERALOGICAL ASPECTS - FRG, MSA-202-D
SHAPING-RHEOLOGY - BELGIUM, MSA-208-B, HOLLAND, MSA-207-NL
DRYING - FRANCE, MSA-203-F; MSA-204-F
FIRING - UNITED KINGDOM, MSA-211-UK
PROPERTIES OF FINISHED PRODUCTS - ITALY, MSAAA-206-I.

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Koordynator

Friedrich-Alexander-Universität Erlangen Nürnberg
Wkład UE
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Adres
Martensstraße 2
91058 ERLANGEN
Niemcy

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