Kev hloov pauv ntawm cov pa sov ua kom zoo ntawm Pseudoboehmites yog tus cwj pwm tseem ceeb uas tau txhais cov khoom ntawm cov khoom siv tau yog tias raug rau lub tshav kub. Nyob rau hauv raws li cov txheej txheem alumina theem kev hloov pauv hloov thaum kub nce Boehmite hloov mus rau γ-δ-θ-α.
Huab cua kub spectrum yog cov yam ntxwv ntawm alumina pseudoboehmite theem uas tseem ruaj khov yam tsawg kawg mus txog 250-300 ° C. Kev hloov mus rau hauv gamma (γ) tshwm sim hauv 450–500 ° C thaj av thiab siab purity gamma theem tau txais tom qab calcining ntawm siab txog li 700 ° C. Ua kom qhov kub nce mus txog 900 ° C ua rau tsim qhov raws (δ) theem. Tshaj li 1100 ° C alpha-theem tus thawj (kab ntawm lubta (θ) yuav tuaj yeem pom nyob ntawm seb siv tau los ntsuas kub).
Yog koj muaj lus nug txog pseudoboehmite, thov nrhiav peb!