Muaj hydrogen peroxideyog siv los tshem cov hlau thiab lwm cov hlau hnyav hauv kev tsim cov hlau ntsev lossis lwm cov sib txuas. Nws kuj tseem siv hauv kev kho cov teeb meem electroplating kom tshem tawm cov khoom ua rau tsis haum thiab txhim kho qhov zoo ntawm cov plated qhov chaw. Nws kuj yog siv rau cov tshuaj ntxuav plaub tsiaj, ua cov ntuab nyoos, kaus ntxhw, sis plawv hniav, rog, thiab lwm yam.
Kev npaj ntawm alkaline hydrogen peroxide:
Cov pa hluav taws xob quinone muaj cov pa hluav taws xob rau kev tsim cov roj ntsha alkaline hydrogen peroxide yog tus cwj pwm hauv txhua tus khub ntawm cov roj hluav taws xob yog muaj cov phaj anode, lub hau yas, cationic diaphragm, thiab quinone muaj huab cua cathode. Sab sauv thiab xaus ntawm qhov chaw electrode ua haujlwm tau muab nrog chav faib tawm thiab kua dej sib xyaw. Kev sib sau ua ke ntawm cov kua paug tawm yog muab nrog orifice ntawm cov kua hluav taws xob. Lub tshuab hluav taws xob ntau txais yuav cov txheej txheem dipole series sib txuas thiab cov yas hose siv rau lub anode ncig alkali dej qhov hluav taws xob thiab qhov hluav taws xob tau ntev ntev, thiab tom qab ntawd txuas nrog lub taub hau yeeb nkab, ntau pawg electrode pawg sib sau ua ke los ntawm chav tsev cov paib.
Phosphoric acid neutralization method:
Nws yog tsiag ntawv nyob rau hauv tias nws tau npaj los ntawm cov tshuaj tov aqueous sodium peroxide nrog cov kauj ruam hauv qab no:
1. Siv phosphoric acid los yog sodium dihydrogen phosphate NaH2PO4 kom nruab nrab cov tshuaj sodium hydroxide rau pH 8.0 txog 8.7 los tsim cov kua dej ntawm NaH2PO4 thiab H2O2.
2. Txias rau Na2HPO4 thiab H2O2 daws teeb meem rau +5 ～ -5 ° C, kom qhov feem ntau ntawm NaH2PO4 yog dej nag sai ua daim ntawv ntawm NaHPO4 · 110H2O hydrate.
3. Cais cov sib xyaw kom haum uas muaj NaH2PO4 · 10H2O hydrate thiab hydrogen peroxide aqueous tov nyob rau hauv ib qho kev faib tawm centrifugal, kom NaH2PO4.110H2O muaju tau sib cais los ntawm cov kua aqueous uas muaj tsawg ntawm NaH2PO4 thiab hydrogen peroxide.
4. Cov tshuaj tov aqueous uas muaj tsawg ntawm NaH2PO4 thiab hydrogen peroxide yog cov dej hauv lub tshuab evaporator kom tau cov pa uas muaj H2O2 thiab H2O, thiab cov ntsev sib tov ntawm NaH2PO4 muaj hydrogen peroxide ntws tawm hauv qab thiab rov qab mus rau lub tank nruab nrab.
5. Cov pa uas muaj H2O2 thiab H2O raug rau lub tshuab nqus tau nyob hauv ib feem ntau lawm kom tau txog 30% H2O2 khoom.
Electrolytic sulfuric acid txoj kev: electrolyze 60% sulfuric acid kom tau peroxodisulfuric acid, thiab tom qab ntawd hydrolyze kom tau txais 95% hydrogen peroxide.
2-ethyl anthraquinone txuj ci:
Cov qauv tseem ceeb ntawm kev lag luam kev lag luam yog 2-ethyl anthraquinone (EAQ) qauv. 2-Ethyl anthraquinone reacts nrog hydrogen ntawm tej yam kub thiab siab nyob rau hauv qhov kev ua ntawm cov catalyst los ua 2-ethyl-hydro anthraquinone, 2-ethyl-hydro anthraquinone ua rau cov tshuaj tiv thaiv rov nrog cov pa ntawm qhov kub thiab qhov siab, 2-ethylhydro txo qis ntawm anthraquinone rau 2-ethyl anthraquinone tseem tsim cov hydrogen peroxide, uas yog tom qab ntawd muab rho tawm kom tau cov tshuaj aqueous hydrogen peroxide, thiab thaum kawg ua kom huv los ntawm hnyav roj ntxhiab hydrocarbons kom tau txais cov tshuaj hydrogen peroxide aqueous tsim nyog, feem ntau hu ua hydrogen peroxide. Txoj kev no feem ntau siv los npaj 27.5% ntawm hydrogen peroxide. Hydrogen peroxide, ntau dua qhov kev xav ntawm hydrogen peroxide aqueous tov (xws li 35%, 50% hydrogen peroxide) tuaj yeem tau los ntawm distillation.
Tus qauv tshuaj lom neeg ntawm cov tshuaj hydrogen peroxide yog H2O2. Cov tshuaj ntshiab hydrogen peroxide yog lub teeb ua kua xiav dej khov ua kua uas tuaj yeem tov nrog dej hauv ib qho kev sib xyaw. Nws yog ib qho muaj zog oxidant. Nws cov kua aqueous feem ntau hu ua hydrogen peroxide thiab yog cov xim ua kom tsis muaj xim thiab pob tshab. Nws cov kuab tshuaj tov yog tsim nyog rau kev kho mob kev kho mob kab mob, ib puag ncig kev ua kom huv, thiab tshuaj tua kab mob. Nyob rau hauv ib txwm muaj xwm txheej, nws yuav yaj mus rau hauv dej thiab oxygen, tab sis tus nqi decomposition yog qeeb heev. Txoj hauv kev ceev nrawm rau cov tshuaj tiv thaiv yog ntxiv cov nplaim hluav taws xob-manganese dioxide, thiab lwm yam, lossis irradiate nws nrog shortwave rays.