I. TiO2 Titanium Dioxide yog dab tsi
Lub npe scientific ntawm titanium dioxide yog titanium dioxide. Nws muaj ob hom siv lead ua: rutile thiab anatase. Anatase titanium dioxide muaj cov xim zoo dua, tab sis nws lub zog tinting tsuas yog 70 ntawm rutile hom. Nyob rau hauv cov nqe lus ntawm huab cua tsis kam, lub anatase-type titanium dioxide xeem daim pib tawg los yog tev tom qab tsuas yog ib xyoos, thaum lub rutile-type titanium dioxide xeem daim yuav luag tsis muaj kev hloov nyob rau hauv tsos tom qab kaum xyoo. Vim tias rutile titanium dioxide muaj lub zog zoo tinting thiab huab cua tsis kam, nws yog qhov zoo tshaj plaws los siv rutile titanium dioxide rau cov xim yas.
II. Qhov sib txawv ntawm anatase titanium dioxide thiab rutile
1. Cov ntaub ntawv siv lead ua ntawm ob qhov sib txawv. Titanium dioxide muaj peb cov qauv siv lead ua: brookite, anatase thiab rutile. Vim nws cov qauv siv lead ua tsis ruaj khov, brookite tsis tuaj yeem nyob ruaj khov rau lub sijhawm ntev hauv qhov xwm txheej, yog li nws cov nyiaj me me tsis muaj nqi lag luam thiab tsis tau siv. Hom rutile nyiam ua kom ruaj khov dua.
2. Muaj qhov sib txawv ntawm qhov loj me ntawm TiO2 ntawm cov khoom rutile thiab anatase: vim tias cov khoom siv lead ua ntawm cov khoom rutile nyhav hexahedral, nws yooj yim rau disperse uniformly tshaj anatase, thiab cov tsim agglomerates yog ntau uniform. Lub particle loj faib yog nqaim.
3. Txawm hais tias cov txheej txheem ntau lawm ntawm rutile thiab anatase yog qhov zoo sib xws, qhov tshwj xeeb tsis sib txawv.
4. Cov khoom lag luam Anatase tsuas tuaj yeem tsim los ntawm txoj kev sulfuric acid, thiab cov khoom rutile tam sim no muaj sulfuric acid txoj kev thiab chlorination txoj kev.
5. Qhov sib txawv kawg yog cov zaj duab xis txheej: cov khoom siv anatase yog calcined thiab precipitated, thiab ces ntim thiab muag tom qab raug crushed los ntawm Raymond zeb. Txhawm rau txhim kho qhov sib txawv thiab huab cua tsis kam ntawm cov khoom rutile, alumina lossis zirconium yog siv rau kev kho deg tom qab calcination, thiab qee qhov kev kho mob organic kuj tau ua.
