Boehmite tshwm sim hauv tropical laterites thiab bauxites tsim los ntawm alumino-silicate bedrock. Nws kuj tshwm sim raws li hydrothermal hloov khoom ntawm corundum thiab nepheline.
bauxite nyob qhov twg?
Bauxite feem ntau pom nyob rau hauv cov av saum toj kawg nkaus nyob hauv ntau thaj chaw sov thiab subtropical. Cov ore tau txais los ntawm ib puag ncig lub luag haujlwm strip-mining kev ua haujlwm. Bauxite reserves muaj ntau nyob rau hauv teb chaws Africa, Oceania thiab South America.
boehmite siv rau dab tsi?
Boehmite (APYRAL AOH®) yog qhov kub-resistant aluminium oxide-hydroxide. Cov khoom siv ua haujlwm tau siv los ua cov khoom siv thauj khoom rau catalytic converters lossis ua cov nplaim hluav taws kub hauv cov ntawv luam tawm.
Boehmite tsim li cas?
Boehmite yog tej zaum tsim los ntawm cov tshuaj tiv thaiv ntawm hydroxyl ions nrog txhuas ions txav tawm ntawm cov hlau; Cov tshuaj tiv thaiv thawj zaug tshwm sim nyob rau hauv lub pores ntawm pre-existing oxide txheej thiab tom qab ntawd rau sab nrauv.
Puas muaj lwm qhov chaw ntawm txhuas?
Vim tias txhuas hlau ua rau dej thiab cua los ua hmoov oxides thiab hydroxides, txhuas hlau yeej tsis pom nyob rau hauv qhov. … Lwm qhov chaw ntawm txhuas tej zaum yuav muaj ib hnub muaj xws li kaolin av nplaum, roj shales, cov pob zeb hauv av anorthosite, thiab txawm tias cov khib nyiab pov tseg.
