Bauxite

Lub npe scientific ntawm bauxite yogbauxite, bauxite ore. Nws muaj pes tsawg leeg yog qhov nyuaj heev, thiab nws yog ib lub ntsiab lus dav dav rau ntau hom hydrous alumina ores los ntawm ntau qhov chaw geological. Xws li boehmite, diaspore thiab gibbsite (Al2O3 3H2O); ib co muaj li ntawm diaspore thiab kaolinite (2SiO2 Al2O3 2H2O); Qee qhov feem ntau yog kaolinite, thiab nrog qhov nce ntawm cov ntsiab lus kaolinite tsim cov bauxite lossis kaolinite av nplaum. Bauxite feem ntau yog tsim los ntawm chemical weathering los yog exogenous nkaus. Muaj ob peb cov zaub mov ntshiab thiab ib txwm muaj qee cov zaub mov tsis huv, ntau dua lossis tsawg dua cov av nplaum, cov zaub mov hlau, titanium minerals thiab detrital hnyav minerals.

Bauxite dawb los yog tawm -dawb, brownish- daj los yog lub teeb liab vim muaj hlau. Qhov ceev 3.45g / cm3, hardness 1-3, opaque thiab nkig. Yooj yim heev rau yaj. Insoluble hauv dej, soluble hauv sulfuric acid thiab sodium hydroxide tov. Nws yog tsuas yog siv rau aluminium smelting thiab refractory

Kev siv bauxite:

(1) Aluminium smelting kev lag luam. Siv rau hauv kev tiv thaiv hauv tebchaws, aviation, tsheb, khoom siv hluav taws xob, tshuaj, khoom siv niaj hnub, thiab lwm yam.

⑵ precision casting. Lub bauxite clinker tau ua tiav rau hauv cov hmoov zoo thiab ua rau hauv pwm rau precision casting. Siv nyob rau hauv kev lag luam tub rog, aerospace, kev sib txuas lus, instrumentation, machinery thiab khoom kho mob departments.

⑶ rau cov khoom siv refractory. Lub refractoriness ntawm siab alumina bauxite clinker yog siab li 1780 degree, muaj zog tshuaj stability thiab zoo lub cev.

⑷Aluminosilicate refractory fiber ntau. Nws muaj qhov zoo ntawm lub teeb yuag, kub tsis kam, zoo thermal stability, tsis tshua muaj thermal conductivity, me me tshav kub muaj peev xwm thiab mechanical shock resistance. Siv nyob rau hauv hlau thiab hlau, nonferrous metallurgy, electronics, roj av, tshuaj kev lag luam, aerospace, atomic zog, lub teb chaws tiv thaiv thiab lwm yam lag luam. Nws tso siab -alumina clinker rau hauv siab- kub hluav taws xob arc rauv nrog qhov kub thiab txias ntawm li 2000-2200℃, thiab tom qab siab - kub melting, siab -siab siab -ceev cua los yog chav txhaj tshuaj, thiab ua kom txias "1ton" aluminium Refractory fiber ntau. Nws tuaj yeem raug nias rau hauv daim pam fiber ntau, cov laug cam los yog woven rau hauv daim ntaub los hloov refractory cib hauv ob sab phlu high-temperature kilns hauv smelting, tshuaj, iav thiab lwm yam lag luam. Cov neeg tua hluav taws tuaj yeem ua cov khaub ncaws los ntawm daim ntaub refractory fiber.

⑸Siv magnesia thiab bauxite clinker ua raw cov ntaub ntawv, ntxiv ib tug zoo binder, nws yog heev zoo rau pouring tag nrho cov hauv ob sab phlu ntawm lub steel nruas.

⑹ Kev tsim khoom ntawm bauxite cement, cov khoom siv abrasive, ceramic kev lag luam thiab tshuaj lom neeg kev lag luam tuaj yeem tsim ntau yam sib xyaw ntawm txhuas.