Cov neeg sawv cev sib sau yog tus sawv cev flotation uas hloov cov pob zeb hydrothbicity ntawm cov ntxhia thiab ua rau cov ntxhia cov ntxhia partles ua rau cov npuas. Cov qeb tseem ceeb tshaj plaws los xaiv yog muaj potions. Nws muaj ob qhov tseem ceeb tshaj plaws: (1) Nws tuaj yeem xaiv adsorbed ntawm cov ntxhia; (2) Nws tuaj yeem nce cov hydrophobicity ntawm cov ntxhia saum npoo av, ua rau nws yooj yim rau kev ua npuas, Li txhim kho cov pob zeb hauv av ntab. Xanthate yog ib qho ntawm cov neeg sau neeg tseem ceeb!
Cov khoom ntawm Xanthate:
Xanthate yog Xanthate, uas nws lub npe science yog hydrocarbyl dithiocarbonate. Nws tuaj yeem suav tias yog cov khoom ntawm carbonate nyob rau hauv uas ib hlau hlau yog hloov los ntawm ib pawg hydrocarbyl thiab ob oxygen atoms tau hloov los ntawm cov leej faj atoms. Nws yog feem ntau cov mis yog R-ocssme, xws li sodium Ethyl Xanthate. R nyob rau hauv lub tswv yim dav dav feem ntau yog ib pawg neeg siv nyiaj ntau pab pawg Cnh2n CNH2N + Groupian Group, itc. Kuv yog feem ntau na (+), k (+ ), thiab cov khoom lag luam muaj feem ntau ntawm (+). Cov yam ntxwv ntawm kaxanthate thiab sodium xanthate yog ib qho yooj yim dua li sodium xanthate qis dua ntawm Sodium Xanthate. Txhua yam yog yooj yim soluble hauv dej, cawv thiab acetone.
Feem ntau, methyl xantthate thiab ethyl xanthate yog hu ua bet-qib Xanthate, thiab cov nrog butyl thiab saum toj no yog hu ua high-qib xanthate. Xanthate yog crystalline lossis hmoov. Impurries feem ntau yog daj-ntsuab lossis txiv kab ntxwv-liab gelatinous nrog lub ntom ntom ntawm 1.3 ~ 1.7 g / cm3. Nws muaj cov ntxhiab pungent thiab yog tshuaj lom (nruab nrab). Luv-saw Xanthath yog yooj yim soluble hauv dej, soluble hauv acetone thiab dej cawv, thiab medroum ether. Yog li ntawd, cov acetone-ether tshuaj lom cov kuab coj los siv rau recrystallize thiab Purify tus Xanthate.
Daim ntawv thov thiab cia ntawm Xanthate
Cov khoom siv sib sau thiab xaiv tau ntawm Xanthate rau ntau cov zaub mov muaj ntau yam yog cuam tshuam nrog cov khoom siv solubility ntawm nws cov hlau xov tooj. Cov khoom siv hlau feem ntau muab faib ua peb pawg raws li cov hlau Ethylal raws li cov hlau Ethyl xanthate tsawg dua li 4.9 × 10 ^ -9. Cov hlau uas poob rau hauv pawg no muaj xws li au, ag, CU, CU, CU, CU, CU, AG, CU, thiab lwm yam) thiab hlau Cov txiv hmab txiv ntoo sulfide ntawm cov ntsiab lus ntawd. (2) Sidophilic Lub Minerals: Cov khoom siv Solubility ntawm nws cov hlau Ethyl xanthate yog ntau dua li 4.9-9 tab sis tsawg dua 7 × 10 ^ -2. Cov hlau uas poob rau hauv pawg no suav nrog ZN, FE, thiab lwm yam muaj peev xwm khaws cov khoom siv hlau me me, tab sis nws tsis muaj zog. Yog tias Xanthate siv los ua tus sau, nws yog qhov yooj yim dua kom ua tiav cov pa roj sib cais ntawm cov ntxhib cov txiv ntoo uas yog Chalcophile cov zaub mov uas yog cov khoom siv sulfide uas yog Sidophile cov ntsiab lus. Txawm hais tias solubility cov khoom ntawm ethyl xanthate ntawm cobalt thiab npib tsib xee yog tsawg dua 10 ^ -1 thiab lawv feem ntau flotated ua ke nrog hlau alerals ua ke nrog hlau alerals ua ke nrog hlau alerals ua ke nrog hlau alerals ua ke nrog hlau alerals ua ke nrog hlau sulfide zaub mov. (3) Lithhhot cov zaub mov ntoo: cov khoom siv solubility ntawm nws cov hlau Ethyl xanthate yog ntau dua 4.9 × 10 ^ -2. Cov hlau cov cuab yeej siv rau cov pawg no muaj CA, MG, thiab lwm yam vim yog cov khoom siv hlau loj hauv qab ntawm cov huab cua sib luag, thiab xanthhate tsis muaj Kev siv cov nyhuv ntawm hom hlau ntxhia. Yog li ntawd, Xanthather tsis siv ua tus sau thaum txheeb cov alkali thiab alkaline lub ntiaj teb hlau cov zaub mov, cov zaub mov oxide thiab cov zaub mov silicate. Feem ntau, cov khoom siv solubility ntawm hlau sulfide cov zaub mov yog me dua li cov khoom siv solubility ntawm cov hlau sib raug zoo. Raws li cov hauv paus ntsiab lus siv tshuaj, nws yog tsis yooj yim sua rau xanthate anion x (-) kom hnov mob nrog cov nplaim dej thiab hloov S (2-). Tsuas yog thaum cov nplaim hluav taws ntawm cov hlau hluav taws kub, ohidide me me, yog li ntawm cov av ntawm lub ntsej muag lossis lwm tus (2-), s2o3 (2-); 2-), thiab tom qab cov khoom lag luam sasma, cov hlau thaum cov khoom solubility ntawm xanthate yog me dua li cov khoom siv sib txuas ntawm cov hlau sib txuas, nws yog qhov ua tau rau xanthate anion X (-) los hloov cov anion sib xws rau cov hlau oxide nyob rau saum npoo ntawm cov hlau sulfide ntxhia. Xanthath feem ntau siv los ua ib tus neeg sau rau cov hlau (xws li au, ag, Cu, thiab lwm yam) thiab cov hlau cov ntsiab lus hauv Chalcophile thiab siderophile. Txhawm rau tiv thaiv hydrolysis, decomposition thiab ntau dhau oxidation ntawm Xanthate, xanthhate yuav tsum muab khaws cia rau hauv airtight ntim. Zam kev sib cuag nrog huab cua noo thiab dej, ua tib zoo mloog rau dej thiab noo-pov thawj, thiab yuav tsum tsis txhob raug rau lub hnub lossis khaws cia ntev. Nws yuav tsum tau muab cia rau hauv qhov chaw txias, qhuav thiab muaj qhov cua. Yuav tsum tsis txhob siv cov dej ntev ntev ntev ntev dhau los npaj cov tshuaj muaj aqueeve. Qhov kev daws teeb meem xanthate feem ntau yog siv rau ntawm kev npaj ua haujlwm, thiab kev npaj ua kom zoo rau kev npaj yog feem ntau 5%.
Lub Sijhawm Post: Sep-13-2024
