1. Some Opportunities to reduce the Iron-Oxide Contaminants in Raw Materials of Glasses using Permanent Magnets Csilla, Paróczai, Dr. László A., Gömze femparcs@uni-miskolc.hu University of Miskolc Department of Ceramics and Silicate Engineering MicroCAD, Miskolc, 16-17. March 2006

2. Abstract MicroCAD, Miskolc 16-17. March 2006. Csilla, Paróczai - Dr. László A., Gömze The art of state is to show the efficiency of the magnetic cleaning of mineral raw materials of glasses. We used the model CMT 5 magnetic trap, in which there are five magnetic tubes. We cleaned all types of mineral with this magnetic trap ten times. After the cleaning we examined the compound of materials, which stick on the magnets. These materials mainly contain metal-oxides, especially iron and titan-oxides. In this article the results of these research and examination are showed.

3. Eriez CMT 5 magnetic trap MicroCAD, Miskolc 16-17. March 2006. Csilla, Paróczai - Dr. László A., Gömze

4. Investigated raw-materials Raw-materials% Quartz sand54,89 Soda19,79 Dolomite13,97 Natrium-sulphate0,48 Limestone5,30 Feldspar3,32 Coke0,039 Water2,21 Investihated raw-materials:  Quartz sand  Dolomite  Limestone  Feldspar MicroCAD, Miskolc 16-17. March 2006. Csilla, Paróczai - Dr. László A., Gömze

5. The test to leach 2kg raw-materials, 10 times The polluted paper MicroCAD, Miskolc 16-17. March 2006. Csilla, Paróczai - Dr. László A., Gömze

6. The quartz sand MicroCAD, Miskolc 16-17. March 2006. Csilla, Paróczai - Dr. László A., Gömze

7. The dolomite I. Cleaning with magnet – to compare the different fraction MicroCAD, Miskolc 16-17. March 2006. Csilla, Paróczai - Dr. László A., Gömze

8. Cleaning with magnet – to compare the different fraction - to allow for screening The dolomite II. MicroCAD, Miskolc 16-17. March 2006. Csilla, Paróczai - Dr. László A., Gömze

9. The limestone I. Cleaning with magnet – to compare the different fraction MicroCAD, Miskolc 16-17. March 2006. Csilla, Paróczai - Dr. László A., Gömze

10. The limestone II. Cleaning with magnet – to compare the different fraction - to allow for screening MicroCAD, Miskolc 16-17. March 2006. Csilla, Paróczai - Dr. László A., Gömze

11. The feldspar I. Cleaning with magnet – to compare the different fraction MicroCAD, Miskolc 16-17. March 2006. Csilla, Paróczai - Dr. László A., Gömze

12. Cleaning with magnet – to compare the different fraction - to allow for screening The feldspar II. MicroCAD, Miskolc 16-17. March 2006. Csilla, Paróczai - Dr. László A., Gömze

13. To compare the different raw-materials I. MicroCAD, Miskolc 16-17. March 2006. Csilla, Paróczai - Dr. László A., Gömze

14. To allow for the compound of mixture To compare the different raw-materials II. MicroCAD, Miskolc 16-17. March 2006. Csilla, Paróczai - Dr. László A., Gömze

15. To compare the different raw-materials III. To allow for the compound of mixture MicroCAD, Miskolc 16-17. March 2006. Csilla, Paróczai - Dr. László A., Gömze

16. The reason why we analyzed the separated pollutant The pollutant usually appears in three mode: - private grain - in the quartz grain - surface of the quartz grain MicroCAD, Miskolc 16-17. March 2006. Csilla, Paróczai - Dr. László A., Gömze

17. The separated pollutant MicroCAD, Miskolc 16-17. March 2006. Csilla, Paróczai - Dr. László A., Gömze

18. The compound and morphology of the separated pollutant I. W%At%W%At%W%At% Magnesium11,0614,35 Magnesium 0,300,61 Magnesium 1,813,84 Aluminium9,5811,20 Aluminium 1,001,84 Aluminium 0,340,71 Silicon36,3740,87 Silicon 2,804,92 Silicon 0,00 Sulphur2,612,57 Sulphur 0,140,22 Sulphur 0,180,29 Potassium1,531,24 Potassium 0,280,36 Potassium 0,240,32 Calcium34,1326,88 Calcium 0,520,64Calcium0,290,38 Titanium2,181,43 Titanium 49,6051,22 Titanium 30,0632,42 Manganese1,070,62 Manganese 1,561,41 Manganese 0,960,90 Iron1,480,84 Iron 43,9738,78 Iron 66,0961,14 Sum100 Sum100 Sum100 MicroCAD, Miskolc 16-17. March 2006. Csilla, Paróczai - Dr. László A., Gömze

19. W%At%W%At% Aluminium 0,681,33 Silicon 2,003,90 Silicon 4,097,65 Iron 98,0096,10 Sulphur 0,320,52 Sum 100 Potassium 0,280,37 Calcium 0,450,59 Titanium 0,410,45 Chrome17,7017,89 Manganese 2,832,71 Iron 1,480,84 Nickel8,737,81 Sum100 The compound and morphology of the separated pollutant II. MicroCAD, Miskolc 16-17. March 2006. Csilla, Paróczai - Dr. László A., Gömze

20. W%At%W%At% Magnesium 0,360,80 Magnesium 0,400,87 Aluminium 0,450,91 Aluminium 0,360,70 Silicon 1,052,04 Silicon 1,352,54 Potassium 0,00 Potassium 0,070,10 Calcium 1,301,77 Calcium 8,4311,13 Chrome 0,00 Iron 89,4084,67 Manganese 0,00 Sum 100 Iron 96,8494,48 Sum100 The compound and morphology of the separated pollutant III. MicroCAD, Miskolc 16-17. March 2006. Csilla, Paróczai - Dr. László A., Gömze

21. Summary  When we compared the different raw-materials we got the following order: the feldspar is the most polluted, the next is the limestone, then the dolomite and the least polluted is the quartz sand.  When we used up a known mixture of glass factory, we got: although the most contaminant get into the melt with the quartz sand, but if we add the contamination of dolomite and feldspar, the summation is beyond the contaminant of quartz sand.  We analyzed the magnetic separated materials, and we established that the used magnet able to detach the private contaminant and the other contaminant which are in the quartz grain or surface of the quartz grain.  The examined raw.materials in the most percentage contains iron, titanium és nickel and these oxide. We can reduce the amount of these undesirable materials with magnet, so we get a long sight better raw-materials. MicroCAD, Miskolc 16-17. March 2006. Csilla, Paróczai - Dr. László A., Gömze

22. Thank you for attention! Csilla, Paróczai PhD student Témavezető: Dr. László A., Gömze University of Miskolc Department of Ceramic and Silicate Engineering