??????? Metatungstate ??? ?????? ????? ????? ???????, ????? ????? ??? ????? ???, ?????? ???????, ???????, ??? ????. ?? ???????? ?????? ?? ????? ???, ????? ????????? ??????? ?????, ????? ??????? Metatungstate ??? ???? ???. ???? ???? ?????, ??????? paratungstate ???? ????? ???, ????? ??????? ????? ????? ??????? Metatungstate; ????? ?? ??? ???, ??? ??????? ???, ????? ?????? ???? ?????, ?????? ??????? ??? ???.

????? ????? ??????? Metatungstate ??????? paratungstate ??????? ????? ??? ?????: (?) ????? paratungstate ??????? ???? ?? ????? ?????? ??? ????? ????? ?????? ?? ??????? Metatungstate; (?) ????? ?????? ??????? ?? ??????? Metatungstate ????? ????? ????? ?? ??????? Metatungstate; ?- (?) ????? ????? ?????? ?????? ?? ??????? Metatungstate ????? ???? ?? ??????? Metatungstate.

A.The ????? paratungstate ??????? ????: ??? ?????? ?????? ???? ????? ???? ? ??????; paratungstate ??????? ???? [5 (NH4) 2O12WO35H2O] ?????? ??? ?? ???? ??????? ??????? ?? 150 ?? 200 ???? / ??? ??? ?????; ??? ????? paratungstate ??????? ?????, ???? ?? 1: ????? ?????? ???? 3 (HNO3) ??????? ??? ????? ?????? ?- pH 3 ?? 5; ?????? ??"? ???? ???? ????? ????? WO3 ?? ?????? ???? 150 ?? '/ ????; ???? ?????? ?????? ????? ???? ??? ???, ??????? ?????? ????? ??? ???? ????? ????? ????, ?? ??? ????? ????? ?????? ?? ??????? Metatungstate.

B.The ??? ?? ?????? ??????? ?? ??????? Metatungstate ?????? ????? ?? ??????? Metatungstate: ?????? ?????? ?? ??????? Metatungstate ???? ????? ????? ??????? ???? 4 ????, ?????? ????? ???? ????? ????? ????? 1; 1 ?????? ??? ?????? ???? ??? ???? ????? ?????? ?????? ??, ??? ??? 1 ?????? ????, ?? ?????? ???? (NH3H2O) ?? 1: 5 ???? ??? ?????? ?? ?????? ?- pH 3 ?? 4; ???? ??????? ?? ?????? ????? 2, ?????? ?? ?????? 1 ?????, ???? 1 ??? ?? ?????, ??????? ?????? ????? ??? ????? ????? ?????? ???? ???? ????? ????? 2; ?????? ??? 2 ???? ???? ???? ?????, ???? ??????? ???? 8 ????, ????? ??? ??????? ?????? ????? ??? ????? ????? ?????? ???? tertiarily ??? ????? ????? ????? ?? ??????? Metatungstate.

????? ????? C.The ?? ?????? ?????? ?? ??????? Metatungstate: ?????? ?????? ?? ??????? Metatungstate ?????? B ??? ????? ???? ???? ????? ?? ??????? Metatungstate ??? ????? ???? ??? ???? ????? ????? ?????????? ??????? ????? ????? ?? atomizing ????? ?????????. ??????-????? ????? ?????? ?: ???????? ?????? ?????? 220 ??? 280 ° C., ???????? ?????? ???? 110 ??? 160 ° C., ??????? ????? 300 ?? 400 ?"? / ???.