?????????????? Metatungstate

????? ?????
????? ????? ?? metatungstate ???????? ????????? ?????? ????????? ??? metatungstate ???? ?????? ?????: metatungstate ????????? ??? ????? ???????? ???????? ?????????? ????? ?? WO312- ~ 30- ????? ?????. ???? ?= 1: 20: ????? ????????? ??????????? ?????? 3- ~ 5- ?? ??? ??????? ?????? ??? ????? ??????????? ?????????? ????? ??????? ??? ?????? ?????? ??? ?????? ??????? 1: (3 ~ 4)? ????? ????? ??????????? ?? 2 ~ 4 ???????? ? ?? ??? ???????? ??????? 1.18 ~ 1.20? ??????? ??? 80 ~ 90 ℃? ???? ????? ????? ??????? ?????? ?? ????? ????? ???? ????? ???????????? ?? ??? ??????? ???? ????? 4H? ?????????? ?? ??????? ??? ?WO3 ??????? ????? 50-? ???????? ?????? ??? ????? ???????? ?????? ?????? ???????? ???????? ????? ??? 80 ℃ ?????.

????? ??? ??????
????? ??????? ????????? ??? ??????? ?????? ??????? ????? ???? ????? ????? ???????? ?? ???????? ??????? ?? ???? ????????? ??????? = 8? ?? ?? ??????? ?????? ??? ??????? ??? ?? ??????? ??? ??????? ?????? ??? ????? ???? ????? ??????????? ??? 2 ~ 4 ? ???????? ??????? ????? ??? ??????? ??????? 1.5 ~ 2? ???? ??????? ???????? ????????. ???? ?????? ?? ????? ?????????? ???????? ??? ???????? ???? ????? ?? 80 ℃ ???????? ?????? ?????? ??? ??????.

????? ?????? ???????
?????? ??????? ?? ??????????? ????????? ?? ???? ????? metatungstate ?????????: ??????????? ????????? ????? ????? ?? ???? ???? ??????? ??? ??? ?? ?????? ??? ??????? ?????? ????? ??????? ?????? ?? ???? ?????? ?????? ??????? 200 ~ 280 ℃? ??????? ?? ????? 1 ????. ????? ????? ???????? ??????? ????????? ???? ????? ??????????? 5- 6- ~. ?????? ?????? ??????? ?????? ??? ?????? ????? ???? ?????? ?? ????????? ???? ????? ???? ????? ??????????? ?? 3 ??? 4 ?????? ?? 90 ℃ ????? ?????. ??? ?????? ?????????? ??????? metatungstate ?? 50- ???? ??????? ????? ?????? ???? ???????? ?????? ???? ???? ?????? 20- ????? ????? ??????? ???????. ????? ???? ?? ????? ???? ????? ?????? ?????? ?????? ??? ??????? ?????. ??????? ?? 45- 50- ~ metatungstate ????????? ???? ????? ????? ??????? ???? ???? ????? ????? ??????? ????????? ?? ???? ????? ?????? ?????? 250 ~ 300 ℃? ???? ????? ???? 90 ~ 95 ℃? ??????? ????? ????????? ?????? ???? ???????? ???? 200 ???? ? 95?? ??????? ????? ??????? & lt? 1.5-.

????? ????????? ?????????
????????? ????????? ???????? ?? ??????? ????????? ???? ????? ??????? ??????? ???? ?????????? ????? (2- ethylhexyl) ???? (D2EHPA) ?? ???? ?????????? ????? ???? ??????? (TBP) ?????????? ????? ???????? ?? ??????? ???????? ???????? ??????? ????????? ???? ????????? ??? ???? ????? ??????????? ? 2 ~ 4? ????? ?????? ???? ?? metatungstate ?????????. ??????? ????????? ????????? ??????? ???????.

???? ????? ?????
???? ????? ????? ????????? ??????????? ???????? ????? ??????? ???????? ?????? metatungstate ?????????: 130 ~ 140 ??????????? ????????? ℃ ??????? 1-8 ????? ??? ?????? ??? ?????? ??? ?????? ??? 80 ~ 100 ℃ ?????? ???? 2 ~ 6 ?????? ????? ?? metatungstate ?????????. ????? ???????? ????????? ?????? ?????? ??? ??????. ????? ??????? ???????? ??????? ????????? ???????????? ????????? ??????? ????? ???? ????? ??????? ?? metatungstate ?????????: ??????????? ????????? ??? ???? ??????? ????? ??? ???? ??????? ?? ???? ???? ????????? ???? ????? ???? ??????? ????? ?? ???? ???????? ????? ?????? ????? metatungstate ????????? ?????. ?????? ?? ???? ??????? ?? metatungstate ????????? ????? ??????? ???? ?????? ?????? ?????? ????? ?? metatungstate ?????????.