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

Abstract MicroCAD, Miskolc March 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.

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

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 March Csilla, Paróczai - Dr. László A., Gömze

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

The quartz sand MicroCAD, Miskolc March Csilla, Paróczai - Dr. László A., Gömze

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

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

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

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

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

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

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

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

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

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 March Csilla, Paróczai - Dr. László A., Gömze

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

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 March Csilla, Paróczai - Dr. László A., Gömze

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 March Csilla, Paróczai - Dr. László A., Gömze

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 March Csilla, Paróczai - Dr. László A., Gömze

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 March Csilla, Paróczai - Dr. László A., Gömze

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