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øߎXƂۺȻXˇо

øߎXƂۺȻXˇо

ժҪҪоÃ(yu)|(zh)ߎXVԭڲκXԭϵėlƂۺȻXPACķ^Y@ʾߎXVӽ(jng)^700ߜџ1hٽ(jng)÷ִͶϺͺڼӰˮϡጷɫ@91.2Xʺ 53.6}(B)wa(chn)ƷXĺ22.7

PI~ߎX Ƃ ۺȻX

һǰ

ۺȻXPolyaluminum Chloride,QPACַQAʽȻXuȻXͨʽ[ Al2(OH)nCl6-n]m Alm(OH)nCl3m-n(m<10,n1~5)һN(ni)⃞(yu)ğoC߷ӃˮPACζ᝭ˮl(f)ˮͬrSl(f)늻WͳW^лܺáwЧʸɱ͡m÷Vȃ(yu)cҪڃˮͽoˮˮ|(zh)̎FkȾ͵߀ˮI(y)Uˮ̎С

Ŀǰ҇ߎXVa(chn)YԴʮS(j)Ї|(zh)Va(chn)оԺ䃦_230.45fɰܛ|(zh)ߎXmϴҎ(gu)ģa(chn)ijоñVa(chn)YԴ(jng)џһϵвEƂˮPACԝM(ni)100ft/a Mh(hun)a(chn)I(y)İl(f)չҪ(jng)Ч

򞲿

SCijظߎXԇՓMɿɱʾAl2O32SiO22H2O(jng)^ϴɫ@120ĿˮϴߎXҪWɷ֞(|(zh))SiO2 49.97, A12O3 35.03, Fe2O3 1.91

ߎX(ʽAl2O32SiO22H2O ) ͨ^џ, Óˮ:

O32SiO22H2O Al2O32SiO22H2O   2H2O

ߎXc}ᷴ:

l2O32SiO2 HC l AlCl3 SiO2  H2O

VSiO2,һl¿ɉAʽȻX:

6H2OAl2(OH)nCl6-n

mˮMˮۺϷ

(OH )nCl6-n   mx H2OAl2(OH )nCl6-nX H 2O m

îa(chn)Ʒ

.Ҫxԇ

t(Ax޹˾)

늟ظ䣨˹޹˾

شӟᔇK݇AxS

ӋϺ܃x޹˾

fÿ{(dio)늠t

^V

}᣺|(zh)֔(sh)25

ˮܶȞ25g/L

}᣺s0.5mol/L

1 12Һ

Һ0.05mol/L

c_Һ:s3.3mol/L

Һ:500g/L

Ȼ\˜ʵζҺ0.0200mol/L

c˜ʵζҺ0.1000mol/L

׷ӳָʾҺ5g /L

.򞲽E

ĥ^ĸߎXƷt(ni)M700ߜџ,(jng)^1Сr󣬵õɫ۠ĸߎXһƿм25}95mlƿcʽضӋ95ȻƿںشAٌ32gķ۠ߎXӷͶƿÿͶһκҪӟᔇs10Ͷ^m(x)ӟᔇֹӟ^Һl(f)ʧƿһbԁˮsҺ3.5Сr󣬾25g/LİˮMϡֱҺPHֵs3.0-5.0֮gõSɫҺwҺxόӵõҺwڜضȞ100늠tl(f)sƿڟo@wųƿ(ni)ӽSɫrֹͣl(f)ڳsõSɫĩļˮʎܽͬrքeyPHֵӵһˮ󣬵õPH4.0-4.5ĻҰɫҺwrÜ\Sɫw󼴵îa(chn)Ʒ

.a(chn)ƷX}(B)Ĝy

ȡ2.8~3.0gwa(chn)Ʒʽӣ_0.0002gˮܽ⣬ȫ500mlƿˮϡ̶ȣuҺȡ20ml250mlFƿ2mlҺ1mins20mlEDTAҺc_Һ{(dio)(ji)PHs3þPHԇz򞣩2mins10mlc_Һ2~4ζ׷ӳָʾҺȻ\˜ʵζҺζҺɵSɫ׃?yu)΢tɫKc10mlҺӟ΢s˕rҺSɫҺʼtɫtμҺSɫȻ\˜ʵζҺζҺɫĵSɫ׃?yu)΢tɫKcӛ䛵ڶεζĵȻ\˜ʵζҺweVt|(zh)ٷ֔(sh)ʾXAl2O3X1ʽӋ飺

=Vc0.05098/m500/20100=127.45Vc/m(1)

ʽ(1) : VڶεζĵȻ\˜ʵζҺweml;

Ȼ\˜ʵζҺČHmol/L;

ԇϵ|(zh)g;

.05098c1.00mlȻ\˜ʵζҺ[c(ZnCl2)=1.000 mol/L]ஔ?sh)Կ˱ʾX|(zh)

Qȡs0.6gwa(chn)Ʒʽ_0.0002g20~30mlˮ250mlFƿСҺܼ25ml}Һwϱڷˮԡϼӟ10min,sҜ25mlҺu򡣼5ηָ̪ʾҺÚc˜ҺζҺʬF(xin)΢tɫKcͬrò̼sˮհ׌԰ٷֱȱʾ}(B)X2(}ȶxcXĮٷֱһ÷̖BʾB=1[OH]/3[Al]100,ʽ[OH][Al]OHAlĮ

(sh)ͨʽ[Al2(OH)nCl6-n]m Alm(OH)nCl3m-n(m<10,n1~5)fB=n/6100.)ʽӋ飺

=V1-V2c0.01699/ mX1/100100=169.9(V1-V2)c/mX1(2)

ʽ(2): V1հ׌Ěc˜ʵζҺwe,ml;

-yԇĚc˜ʵζҺwe,ml;

c˜ʵζҺĝ,mol/L;

-ʽ(1)МyõXAl2O3ĺ,;

.01699~1.00mlc˜ʵζҺ[c(NaOH)=1.000mol/L] ஔ?sh)Կ˱ʾX|(zh)

Yc

.ߎXџ

 

Aڭh(hun)Ƽ޹˾ɽ(ni)дџߎXИI(y)I(y)32580010001250Ŀ a(chn)50-200ÿa(chn)ɼgD(zhun)׌ɳOa(chn)Ʒ

Aڭh(hun)Ƽ޹˾I(y)YԴߎXИI(y)a(chn)ĻD(zhun)G\D(zhun)ʿ10%a(chn)5%10%ܺĽ20%a(chn)_50-500t/dӹ(ji)ܭh(hun)ֱԃ18637113703(΢̖ͬ)Aڭh(hun)Ƽ˾\գSrgӭǰ텢^!

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