Quartz sand

At research of natural quartz raw materials of a deposit of "Chetvernja" The unitary enterprise Scientifically research institute of building materials it has been revealed that quartz sand can be used for manufacture of tare glass of mark PT, and also the painted tare glasses to which structure less rigid demands in accordance with GOST Р 52022-2003 are made.
Batch calculation, as the basic component is used quartz sand of a deposit "Chetvernja", presented more low.

Results of batch calculation:

The name of raw materials The maintenance of oxidizing agent weight % On 100 kg. glasses On 100 kg. batch
SiO2 Na2O+K2O (In recalculation on Na2O CaO MgO Al2O3 Fe2O3
Quartz sand of a deposit "Chetvernja" 72,31 1,02 0,31 0,18 2,66 0,27 77,66 64,77
Soda ash - 12,81 - - - - 22,06 18,40
Dolomite 0,18 0,00 1,77 1,19 0,005 0,002 6,03 5,03
Chalk 0,14 0,00 6,81 0,00 0,034 0,003 13,46 11,23
Sodium sulphate 0,00 0,30 0,00 0,00 0,00 0,00 0,69 0,57
Total 72,63 14,13 8,89 1,37 2,70 0,28 119,9 100

We invite the interested organisations to address for the conclusion of contracts on delivery of quartz sand for manufacture of tare glass of mark PT.