Product range, quality data

Raw perlite grades:

Raw perlite grades suitable for expansion are produced from the perlite rock by crushing, drying and sizing. The water content trapped in the structure of the raw perlite varies between 2 and 5%.

Chemical analysis:

Chemical composition:

SiO2

68 - 75%

Al2O3

10 - 15%

Fe2O3

1,0 - 2,5%

CaO

1,5 - 2,0%

MgO

0,2 - 1,5%

K2O

3,2 - 4,5%

Na2O

2,8 - 4,5%

Ignition loss

2,0 - 5,0%

In the preparation plant in Pálháza following grades are produced at present:

Perlit-92 Kft. Product specification 2018

 

 

 

Type

Size (mm)

Regulations (%)

 

 

 

A

 - 1.000

   5 -  15

 - 1.600

 25 -  55

 - 2.000

 65 -  85

 - 2.800

 95 -100

 

 

 

M

 - 0.315

   0 -  13

 - 0.500

 15 -  35

 - 1.000

 60 -  85

 - 1.600

 95 -100

 

 

 

 

 

 

F35

 - 0.125

 max.   8

 - 0.200

 max. 20

 - 0.250

 max. 35

+ 0.630

 max.   5

 

 

 

FF

 - 0.200

   0 -  20

 - 0.500

 72 -  90

 - 0.630

 90 -100

 - 1.000

100

 

 

 

FF150

 - 0.200

   0 -  50

 - 0.500

 72 -  90

 - 0.630

 90 -100

 - 1.000

100

 

 

 

FF130

 - 0.200

   0 -  35

 - 0.500

 72 -  90

 - 0.630

 90 -100

 - 1.000

100

 

 

 

FF120

 - 0.200

   0 -  28

 - 0.500

 72 -  90

 - 0.630

 90 -100

 - 1.000

100

 

 

 

 F

 - 0.200

 max. 75

 - 0.500

 min. 95

 - 0.630

 min. 99

 

 

 

C

 + 0.250

 max.   6

 - 0.125

 max. 80

 

 

 

SZ

 - 0.050

 max. 95

 +0.125

 max.   3

 

 

 

RT

       - 60.0

 max. 95

          -1.0

 max. 10

Following properties of the material mined and prepared in milling plant are regularly controlled:

Expansion rate 0,1-0,3 mm grains are expanded in a lab-kiln. The loose apparent density of the expanded material should not exceed 35 g/l.

Dead rock content:dead rock content of the perlite is tested by watery separation, the dead rock content should not exceed 5%.

Surface moisture:perlite sample dried until weight consistency at 105° C. The moisture content measured of sample has to be below 1%.

Sieve analysis

Compression strengthsingle-axle strength of the perlite expanded in a lab-kiln is measured by compaction rates of 20 and 40% in accordance with the Brook-method.

Grain structure of expanded material: tested by means of 0,5 mm sieve

Modern sieving equipment