Ground limestone
Ground limestone for VFK 80/III-V fluidised bed boilers

Ground limestone VFK 80 is produced by grinding natural limestone to the required fineness.

Area Of Use

Its high chemical purity and granulometry make it an effective sorbent for the removal of sulphur oxide from fluidised bed boiler flue gases.

Norm

ČSN 72 1210, ČSN 72 1217, ČSN 72 1220, PN 72 1221

Technical parameters

ISO 9001

Quality management systém is certificated according to ČSN EN ISO 9001:2016.

ISO 14001

Quality management systém is certificated according to ČSN EN ISO 9001:2016.

Physical Properties

Limestone VFK 80 unit PN 72 1221 achieved parameters
moisture % ˂ 1 0,08
bulk weight kg/m3 1428
granulation - residue sieve
- residue sieve 0,090 mm % 80-90 82,8
- residue sieve 0,100 mm % 78-88 79,6
- residue sieve 0,200 mm % 40-68 47,5
- residue sieve 0,500 mm % 6-30 7,9
- residue sieve 0,630 mm % 3-15 4,0
- residue sieve 0,710 mm % 1,5-9
- residue sieve 1,000 mm % 0-2 0,8

Chemical Properties

Limestone VFK 80 unit ČSN 72 1217, class III ČSN 72 1217, class V achieved parameters
CaCO3 + MgCO3 % 96,0 93,0 98,8
MgCO3 only % 2,0 6,0 0,79
SiO2 % 1,5 4,5 0,62
Al2O3 + Fe2O3 % 0,8 3,5 0,17
Fe2O3 only % 0,3 2,0 0,06
SO3 % 0,2 0,3 0,05