??????????：?? ?????? ???????? ????????? ???? ?????? ??? ??????????? ?????????? ???????? ?????? ???, ?? ??????? ???? ?????????? ????????? ???? ??????? ??????? ???? ????? ???? ????????? ???????? ????????

????????? ????, ?? ????? ??????,Foundry, ?????????? ??? ????????????? ??? ?????? ?????????? ??????? ???, ?? ???? ????? ??? ?????? ???? ???? ????????? ?????? ????????? ????????? ???? ??????? ??? ???????? ?? ???????? (???, ??????????????, ?????, ????, ???????) ?????? ??? ??? ??????? ??????????? ????? ???, ??? ??????? ???? ?????????? ????????? ???? ?????? ??? ?? ????? ?????? ??????? ???? ????????????

??? ???????????? ????? ?????? ?????????????? ???? ???????? ??? ??? (???? ???????? ?????? ??? ???? ?????? ?????), ??? ??????????? ????????????? ????????? ?? ???????????? ????????????????? ????????? ????? ???????????? ????? ?????? ??? ????????? ??????????? ????????? ???????, ?????????? ????????, ??? ??????? ??? ????????? ??????? ???

Standard Quartz Sand Beneficiation and Purification Process

???????? ???????? ????? ???????? ?????????? ?????? (???????? → ??????? ??????????)

1. ??????????????: ???? ? ????? (???? ???? ??????????, ???? ????? ??????)

??? ????????:????? ?????? ?????? ???? ???? ?????? ???? ????? ????? ??? ??? ????? ? ?????? ???? ????? ????, ??????? ???????????? ???? ???? ???????? ?????

?????????? ???????:

  • ????? ???? (????????? ????, ????????? ????? ????) ???? ?????/??????? ??????? ????? ???? ??????? ????????? ????????? ???? ?????? ???;
  • 2.???????? ???????:???? ??????? ?????? ??????????? ???? ??-??? ???? ??????? ??? ???? ??????? ??????? ?????? ????????????? ???? ???? ?????
  • 3.????????? ??? ?????????????:??????? ???? ?????? ???? ????????? ????? ?????? (??? ???? 10–20 ????) ??????? ??? ????? ???????? ??? ?????? ???? ????? ??? ??? ???????? ????, enquanto ????? ?????? ??????? ???????? ???? ?????? ?????
  • 4.??? (??????) ?????????????:???? ??????? ?????? ??????????? ?????? ??????? ?????? ???? 5–10 ???? ??????? ??? ???? ????, ?? ??? ?????? ???? ???????? ??????? ?????
  • 5.???? ??????? ????:???? ?????? ?????? ???? ????????? ????? ???????? ???? ?????? ??? ???? ???? ???? ???????? ??????? ??? ???? ??? ???????? ?????? ????? ?????? ???? (?? ??????? ????????? ??????? ???????? ????)?

??? ???????????:??????? ?????? ???? ?–?? ???? ?????????? ??? ???; ????? ??????????? ≥ ??%?

2. ???? ??? ??????????? (???? ???? ???????, ????? ????? ???)

??? ????????:????????? ????????? ???????? ????????? (????, -20 ???, -100 ???) ? ???? ???? ????, ???????? ????????? (????, ???? ???????, ????) ???? ??????????? ???????????? ????? ???, ??????? ?????????? ???? ?????? ?????? ????

?????????? ???????:

  • (1) ??????????? ?????? ??? ????? ???? ??????? ???? ???? ?????? ??? ??? ???? ???? ?? ??? ?? ?? ????? ????? ???????? Feed ??? ??? (?????? ????? ???? ?? ??????? ???????? ?????? ??? ??? ???? ???? ????? ????? ??? ???)?
  • (?) ???????? ???? ???? ??????????? ??????? (???????-????? ??????, ???????????????, ???? ???????? ???????????) ?????? ??? ????????? ??? ??????? ??? ???? ???? ?????
  • (3) ????-???? ??????: ???????????? ???? ???????????? (????????) ??????? ??????? ??????? ?????? ???? ???? ???? ???; ???????? ??????? (????? ??? ????) ????????? ???? ??? ?????

??? ???????????:

  • ???? ????? ??????:??????? ?????????????? ???????? ???????? ?????? ????? ????? ???? ??? ???? ??% ?? ???? ??? ??? ????????; ????/??????????-????? ????? ???? ??? ???? ??% ?? ???? ??? ??? ?????????
  • ?????? ?????:Grinding-?? ???? 60%–70% ??? ?????????????? ???? 30%–40% ????????????

?. ????????? ??????? ???? (???????? ??????, ????????? ??????)

????????? ????? ?????? ???????? ?? ????? (Fe?O?), ?????????????? (Al?O?), ????, ??? ????, ?? ???? ???????? "??????? + ????????" ?????????? ?????????

(1) ????????? ??? ?????????? (????, ?????????? ???? ??????)

  • ?????????:????????? ???? + ??????????? ????? ????????? ??? ????? ???? ????? ???? ??? ??????? ????? ??? ???? (????? ?????????? ???? ???? ????, ?? ??????? ???? ???????? ???????? ???)?
  • ???????:????? ???????ber, ???????? ???????ber (??? ?????? ????????? ??? ???????)?
  • ??? ???????????:????????? ???? ??–?? ?????; ?????? ????? ??%–??%; ????-????? ?? ??? ?.?–?.? ??????

(?) ??????????? ??? ?????? ???????? ??? (???? ?????? ???????? ????????)

  • ?????????:??? ????? ???? ??????? ?????? ?????? ???? ???????? ?????? ?????????? ???? (???? ??? ???????????????? ???????? ??????? ??????)?
  • ???????:???????????????, ????????? ????? ????????
  • ?????????:??????????? ???????? (??? ??????) ????????? ???; ??????????? (???? ????????? ???????) ???? ???????? ???? ?????? ?????

(3) ??? ???????? ???? ?????? ????? ??? (?????? ?????? ??????)

  • ?????????:?????? ???? (????, ???????????) ??? ?????? ?????? ???? (????, ????????, ????????) ?????? ???? ???? ????? ????????
  • ??????????? ????????:?????-??????? ?????? ????????????? (?? ??????? ????, ??????????? ?????? ???) + ????-??????? ?????? ????????????? (?? ?????????? ????????? ????, ????-??????????? ??????? ?????? ???)?
  • ??? ???????????:????-???????? ?????? ????? ????? ??,???–??,??? ????; ?????? ???????? ?????? ?.?–?.? ?????/??????? ???? ?????? ??????????? ???????? ???? ??????? ??? ?????

(?) ???????? (?????, ?????????? ?? ??? ?????-?????? ???? ?????? ??????)

  • ???????:????-??????? ????????? ????? ???? ???????? (????, Fe?O? ≤ 0.02%) ???? ?????????? ??? ???? ???? ??? ???? (??????????? ??? ??? ?????, ?????? ??????? ?????? ??????????? ???)?
  • ????:????????? ???????? (pH 2–3), ???????? ????????? (????, ???????? ????????, ???????? ????????????? ?????????????) ?? ????, ?????????? ??? ???? ??????? ??????? ???? ???? ??? ????, ??? ????????? ???????? ???? ?????
  • ???????:????????? ??????? ???????? ?????, ????? ???????? ???????? ????? (???????? ?????? ?????? ???????? ???? ???-????????? ????????)?

(?) ???????? ?????????? (PV/??????????-????? ????? ???? ?????????)

  • ???????:??? ?????? ?????????????? ????-???????? ????????????? ???? ???? ????? ??? ?? (????, Fe?O? ≤ 0.005%)?
  • ??????????? ??????????:
    • ??????? ?????: ?????????? ????? ?????? ???? ????? ??????? (??????????????, ?????????, ??????????????) ? ??????? ????? ???? ??????? ???? ??? ?????????????? ??????? ?????? ?????
    • ???????-??????? ?????: ?????? ????????? ?????? 600–800°C ?? ????? ???? ???? ????????? ????? ??????? ??????? ????? ?????????? ???, ????? ??????? ????????? ??????? ?????? ?????? ?????
  • ?????? ???????:???? ???????? ??, ??????? ?????? ?????? ???? ?????? ???????? ??????????? ?? ??? ??? ???? ??????? ?? ???? ?????????? (pH ?–?) ??????? ???? ?????

?. ????? ?????? ??? ?????? (????? ?????? ?????? )

  • ???????? ?????? ???? ????? ??????? ???????? ??? ???? ?????????? ??????????? ??????? ????? ??????? ???, ??? ??? ?????????? ????? 60%–70% ??????? ????? ?????
  • ????????????? ?????? ???? ??????? ????? ?? ????????? ???????? ????? ?? ???? ???????? ???????? ≤ 10% ? ?????? ??? ????
  • ?. ??????? ????? ???? ?????? ????????? (???–???°C) ??????? ???? ????? ????????? ???? ??????????? ?????
  • ?. ????? ?????? ???? ??????? ?????? ??????? ?????????? ??? ??? ???? ?????? ??????? ???????? ??????? ???????????? (????, ?????, ??????, ??????? ????) ?? ???????? ???????? ????? ??? ?????

?. ?????? ?????? ???????? ??? ???????

  • ???????? ????:SiO? ????????? (?????? ????? ???? ≥98.5%, ????? ???? ≥99.3%, ????-????? ≥99.9%, ??????????-????? ≥99.99%), Fe?O? ??????? (?????? ???? ≤0.3%, ???-???? ???? ≤0.005%), ???? ???? ?????, ???????? ????????
  • ???????:?????? ???? ????? ??? ???? ????? ??????? ??? ??? ???????? ?????? (????, ???? ?????, ????) ???????

??????? ?????????? ?????????????? ???? ??????? ?????????? ?????????

???????????? ??????? ??? ?????????? ??? ??? ????????
?????? ??????? ???? ??????? ? ????????? → ????????? ? ?????????? → ??????????? SiO? ≥ ??%, Fe?O? ≤ ?.?%
?????/????????? ???? ??????? ??? ????????? → ?????????? ??? ??????????? → ????????? ??? ????????? → ????? ??? ????-???????? ?????? ???????? SiO? ≥ ??.?%, Fe?O? ≤ ?.?%
??????????? (?? ??) ???? ??????? ? ????????? → ????? ??? ? ???????????? → ????????? ? ???????? → ?????? ??????? → ???????? → ??????? ????? SiO? ≥ ??.?%, Fe?O? ≤ ?.???%
??????????-????? ???? ??????? ? ????????? → ?????????? ? ??????????? → ????????? ? ???????? → ?????? ???????? → ???????? → ???????-??????? ????? → purified ?? ????? SiO? ≥ 99.99%, Fe?O? ≤ 0.001%

?????????? ?????? ????????? ??? ?????? ?????????

?. ??? ?????????:

  • ??????-????? ??????-??????? ?????? (??????? ??? ?????????? ?????) ???? ??? ???? ??????? ??? ??? ????? ????? ??????
  • "??????? ????????? ????????, ???????? ????????? ????????" ?????? ??????? ??? ????????? ??????? ????? ???????? ????? ????
  • ???????????? ???????????? ??????? ???, ?? ??????? ????? ???? ??? ?????????? ??????? ????? ????????? ?????? ??? ??????? ?????? ????

?. ??? ????????:

  • ??? ???? ????????:????? ??? ????????? ???????????? ????? ?? ??????? ???????? ?????????? ??? ???? ???? ?????? ???? ???? ???????? ?????? ??????? ????? ????
  • ???????? ??????????:???????? ??? ??????? ???????? ???????? ??????? ???????? ?????? ???????? ??? ??? pH ???????? ?????????? ?????
  • ?????? ?? ???????????:??????? ????? ?????? ?? ???????? ?? ?????????????? ??? ?????????? ??? ???? (????, ?????? ??????? pH ~7 ????? ???) ???? ???? ???????? ??? ?????

??? ?????????? ?????? (???? ??????????)

?????????? ??? ????? ?????????? ??????????? ??????????
???????? ??? ????? ?? ???????, ?? ???????, ????????? ????? ??????? ????? ???????, ???????? ???? ????, ??????? ???? ????
????? ??? ? ?????????????? ???? ?? ???, ???????????????, ???????? ???????????? ?????, ?????? ?????
????????? ???????? ?????????, ?????-?????????????? ?????? ????? ???? ??????, ????-?????????????? ?????? ????? ???? ??????, ???????? ?????, ???? ????? ??????? ?????????? ???????, ????????? ????????? ???????
????? ?????? ? ?? ?????? ??????????, ??????? ?????, ?????? ???????? ?????????? ???????, ?????? ???? ????

???? ???????????? ????? ?????? ???????? SiO? ??????????, ????????? ?????? (??????????, ????????????? ???????? ??) ??? ?????? ?????????? ?????? ??? ?????? ??? ?????????? ??????? ??? ???? ????? ?????? ???????? ???? ????????????? ???? ????????? ????? ?????? ???????? ???? ?????????

??????? ????? ????????? ???? ?????? ????-??????? ????????? ????? ???????? ???? ???? ????????? ??? ???????? ????? ????? ????????? ????? ?????? ??????? ??????????? ???????? ?????? ????????? ??? ????????? ???????????? ?????? ??? ?? ????????? ???????? ??????????? ?????? ???? ?????? ??? ??????, ??? ???? ??????? ???? ????????? ??? ??????? ????????????? ???? ???? ??????? ??????????, ????-??? ?????????? ??? ???? ????? ??????????? ??????? ???, ????????? ???? ?????????????? ??????????????? ??? ????? ?????? ???? ????? ?? ?????, ?????????, ?????????? ??? ??????????-????? ????? ???? ????? ??? ???? ?? ??????? ???? ???????????? ?????????? ?????????? ??? ???????? ???????? ????? ???? ??? ????? ???????? ??????? ??? ????? ?????? ???????

?????????? ????????? ?????? ??? ????????? ?????????? ???????? ????, ????? ???????? ?????????? ??????? ?????? ?????????? ?????????? ???? ??? ?????? ????? ???????? ???? ???? ???????? ???????? ??????????

????????? ????: