Anionic resins feem ntau yog cov khoom siv txuas ntxiv dua tshiab uas tuaj yeem rov qab tau lawv lub peev xwm adsorption los ntawm kev ua kom tiav. Ntau hom anionic resins thiab cov ntawv thov siv tau zoo yuav xav tau ntau txoj kev ua kom raug xaiv. Qhov tseeb, txoj kev ua kom yuav tsum tau xaiv thiab hloov kho raws li qhov xwm txheej tshwj xeeb kom ua tiav cov txiaj ntsig zoo tshaj plaws.
Txoj kev ua kom nquag plias rau anionic resins
1. Kev ua kom lub cev: feem ntau ua tiav los ntawm kev hloov pauv qhov kub, siab, pH thiab lwm yam kev mob ntawm anion resin. Piv txwv li, kev ua kom dej kub yog immersing cov resin nyob rau hauv high-temperature dej, siv qhov kub thiab txias hloov ua rau cov kev hloov nyob rau hauv lub internal qauv ntawm resin, yog li ua rau nws muaj peev xwm adsorption thiab pauv efficiency. Txoj kev siv roj compressed rau kev ua kom muaj peev xwm muab cov resin tso rau hauv qhov chaw muaj roj siab, siv lub siab ntawm cov pa los qhib qhov pores ntawm cov resin thiab txhim kho nws cov haujlwm.
2. Kev siv tshuaj lom neeg: feem ntau yog siv cov tshuaj reagents los hloov cov qauv thiab cov khoom ntawm anionic resins, xws li siv cov tshuaj siv tshuaj xws li hydrochloric acid, sulfuric acid, sodium hydroxide, thiab lwm yam. Los ntawm kev siv tshuaj lom neeg nrog cov resin, tus activator tuaj yeem hloov nws. pore loj, pore qauv, thiab nqi zog, yog li txhim kho nws adsorption muaj peev xwm thiab xaiv.
3. Kev siv tshuaj lom neeg lub cev: Nws yog kev sib xyaw ua ke ntawm lub cev thiab tshuaj siv rau kev ua kom muaj zog. Piv txwv li, siv high-temperature acid ntxuav los ua kom cov resin tsis tau tsuas yog hloov lub pore qauv ntawm cov resin los ntawm acid ntxuav, tab sis kuj hloov cov nqi zog ntawm resin los ntawm kub kub, yog li ua tau zoo ua kom cov nyhuv.
Common activators rau anionic resins
1. Ua kom siv cov tshuaj nitrate: Muab cov anionic resin rau hauv cov tshuaj nitrate thiab tshem tawm cov impurities thiab hydrogen ions ntawm cov pab pawg sib pauv los ntawm kev rov qab ntub dej, ntxuav, lub cev qhuav dej, thiab lwm cov kauj ruam los kho nws cov kev ua haujlwm zoo li qub.
2. Kev ua kom siv cov tshuaj carbonate: Txoj kev no zoo ib yam li txoj kev ua kom muaj nitrate, qhov uas cov anion resin yog immersed nyob rau hauv cov tshuaj carbonate kom tshem tawm impurities thiab hydrogen ions ntawm cov pab pawg sib pauv, rov ua kom nws li qub adsorption kev ua tau zoo.
3. Kev ua kom siv cov tshuaj sodium hydroxide: Soak thiab ntxuav cov anionic resin hauv sodium hydroxide tov kom tshem tawm cov impurities thiab hydrogen ions ntawm cov pab pawg sib pauv, thiab rov ua nws qhov kev ua haujlwm zoo li qub.
4. Kev ua kom siv cov tshuaj sulfate: Txoj kev no feem ntau yog siv rau kev ua kom muaj zog alkaline resins, uas tshem tawm impurities los ntawm soaking thiab ntxuav nrog sulfate, thiab kho lawv li qub adsorption kev ua tau zoo.
5. Ua kom siv cov tshuaj ammonia: Soak cov anionic resin hauv cov tshuaj ammonia, kho cov concentration thiab ua kom lub sijhawm ntawm cov tshuaj kom tshem tawm cov impurities ntawm qhov chaw ntawm cov resin thiab rov ua nws qhov kev ua haujlwm zoo li qub.
6. Ua kom siv hydrochloric acid: Soak cov anionic resin nyob rau hauv hydrochloric acid tov kom tshem tawm impurities nyob rau saum npoo ntawm resin thiab restore nws li qub adsorption kev ua tau zoo.