???? ????? ???????? ???? APT
???? ??????? ????? ????? paratungstate ??????? (APT) ?????? ???? ????? ????? ???? ????? ?? ????? ??:
1. ???? ?? ?????? ??????? ??????? ?? ???? ?? ????? ?? ???? ????? ????? ?? ?????????, ??? ???? APT ????? ?? ?????;
2. ??? ?? ???? ??? ?????? ???? ??? ????? ?????? ?? ??? ?????????, ??? ????? ?????? ??? ??? APT.
????? ???? ??????, paratungstate ??????? ????? ?? ??? ???? ??????? ????? ??? ??? ????? ???? ????; ?? ???, ?????? ???? superfine ??????? paratungstate ???? ?? ???? ???????? ?????? (FSSS) ????? 0.6 ~ 1.3μm. ?????, APT ?????? ?? ??????? ?? ??????? ????? ?? ???? ????????, ??????? ?? ??????, ???? ???? ??????? ????? ???? ????? ?????? ????? W-Re, W-Cu ???? ??????? ?? ???? ????.
?????? ??????:
???? ?????? ??????? ????? ??? 2.72 (?? W18O49), ??? ??? ??? ?? ?????? ???????, ????? VTO, ??? ???? ????? ???? ????, ??? ???? ???? ??? ?? ???? ????.
??????? paratungstate ??? ???? ????, ????? ?????? ?????, ???? ??? ????? ?? ?????? ?? ??????????? ???? ????? ?? trioxide ??????? ?? ???? ??????? ?????? ???? ??????? ????.
????? Tungstic ?????? ?????? ????????? ?? ??????? trioxide, WO3. ????? ?????? ?????, ?monohydrate, ??? WO3. h2o, dihydrate ?? 3.2 h2o ???? ??. . ???? ???? ????? ?? WO3 H2O ????? ????? ?? octahedrally ????? WO5 (H2O) ?????? ??? 4 ???????? ???????.
0.6 ??????? ??????? ??????, ?????? ???????, ????? ?? ???? ????? ??????, ????? ????????? ????, ?????? ?????? ?? 0.6-1.0 g/cm3.