Vim li cas titanium thiaj li kim?

Peb txhua tus paub tias titanium yog kim, tab sis vim li cas nws thiaj li kim? Cov khoom siv raw yog kim, uas yog, daim txhuam cev titanium yog kim. Hais txog titanium thiab titanium alloys, peb yuav tsum hais txog daim txhuam cev titanium. Daim txhuam cev titanium yog cov khoom siv raw rau kev tsim cov titanium thiab titanium alloys. Yog tsis muaj daim txhuam cev titanium, yuav tsis muaj titanium thiab titanium alloys.

Daim txhuam cev titanium feem ntau yog los ntawm ob hom minerals:

1) Rutile yog cov ntxhia daj rau xim av xim av, lub ntsiab lus tseem ceeb ntawm TiO2, thiab nws kuj muaj qee yam ntawm cov hlau, niobium thiab tantalum.

2) Ilmenite, theoretical molecular mis yog FeTi03, uas cov ntsiab lus theoretical ntawm TiO2 yog 52.63%. Ilmenite nyob rau hauv cov xwm yuav suav hais tias yog ib tug khoom tov muaj li ntawm FeO-TiO2 thiab lwm yam impurity oxides.

Xyoo 1940, Luxembourg tus kws tshawb fawb WJKroll tau siv magnesium los txo TiCl4 los tsim cov titanium ntshiab. Txij thaum ntawd los, txoj kev txo magnesium (tseem hu ua Kroll method) thiab sodium txo txoj kev (tseem hu ua Hunter method) tau dhau los ua cov txheej txheem tseem ceeb hauv kev tsim cov sponge titanium. Thov nco ntsoov tias qhov ntau lawm ntawm no yog "sponge titanium" kuj hu ua "porous titanium". Kev tsim cov titanium daim txhuam cev feem ntau suav nrog cov kauj ruam hauv qab no: ilmenite - mining - ore hnav khaub ncaws - titanium concentrate - enrichment - titanium-nplua nuj cov khoom - chlorination - crude TiC 1 - refining - ntshiab TiC 1 - magnesium txo - crushing - faib - sib tov - titanium daim txhuam cev.

Lwm plaub txheej txheem hauv qab no yog cov txheej txheem tseem ceeb.

1) Cov txheej txheem chlorination: Qhov no yog cov kauj ruam tseem ceeb hauv kev tsim cov titanium tetrachloride. Cov txheej txheem tshwj xeeb suav nrog boiling chlorination, molten ntsev chlorination thiab ntsug rauv chlorination. Boiling chlorination yog txoj kev siv ntau tshaj plaws tam sim no. Los ntawm kev ua haujlwm ntawm qhov kub thiab txias thiab cov roj chlorine, cov khoom siv titanium-nplua nuj reacts nrog cov khoom carbonaceous txo tus neeg sawv cev los tsim titanium tetrachloride. Molten ntsev chlorination thiab ntsug rauv chlorination siv molten ntsev nruab nrab thiab ntsug chlorination rauv rau cov tshuaj tiv thaiv chlorination feem.

2) Refining txheej txheem: Titanium tetrachloride yuav tsum tau ua kom huv si thiab huv si kom tshem tawm cov ntsiab lus boiling siab thiab qis-boiling point impurities. Feem ntau siv refining txoj kev muaj xws li distillation thiab tshuaj txoj kev. Txoj kev distillation siv lub tshuab nqus dej kom muaj txiaj ntsig zoo, thaum txoj kev siv tshuaj siv cov hmoov txhuas tshem tawm vanadium thiab lwm txoj hauv kev.

3) Cov txheej txheem txo qis-distillation: Refined titanium tetrachloride reacts nrog molten magnesium hlau ntawm qhov kub thiab txias los tsim cov sponge zoo li titanium hlau thiab molten magnesium chloride. Tom qab ntawd, magnesium chloride thiab magnesium ntau dhau hauv titanium daim txhuam cev raug tshem tawm los ntawm lub tshuab nqus tsev kom tau txais cov ntshiab titanium.

4) Electrolytic magnesium txheej txheem: Electrolytic magnesium yog ib qho ntawm cov kauj ruam tseem ceeb hauv kev tsim cov titanium daim txhuam cev. Multipolar electrolytic hlwb thiab partitionless magnesium electrolytic hlwb yog dav siv nyob rau hauv txawv teb chaws, thaum domestic technology kuj rov qab, ua rau muaj zog noj thiab chlorine noj. Nyob rau hauv xyoo tas los no, cov chaw tsim khoom tshiab hauv tsev tau maj mam txais cov txheej txheem loj loj electrolytic, uas tau txhim kho cov thev naus laus zis ntau lawm thiab txo cov nqi.

Tus nqi ntawm cov khoom siv raw titanium daim txhuam cev mus txog US $ 2,700 / ton hauv 2005 thiab 2006. Tom qab ntawd, nrog kev tawg ntawm cov khoom siv hauv cov khoom siv raw, chlorination, refining thiab electrolysis ntawm titanium sponge ntau lawm. Nyob ib ncig ntawm 2017, tus nqi ntawm titanium daim txhuam cev tau hloov kho rau US $ 1,100 / tuj. Txog rau xyoo 2024, tus nqi ntawm titanium daim txhuam cev tau pom qhov sib txawv ntawm "qhib siab thiab mus qis". Tus nqi ntawm titanium daim txhuam cev yog siab thaum pib ntawm lub xyoo, tab sis nrog kev hloov pauv ntawm cov khoom lag luam thiab kev thov, tus nqi maj mam poob. Txog tam sim no, tus nqi ntawm titanium daim txhuam cev tau poob los ntawm kwv yees li $ 7, 000 / ton, mus txog qhov tshiab keeb kwm qis.

Txawm hais tias nws qhov qis tshaj plaws, tus nqi ntawm titanium daim txhuam cev tseem yog $ 6 / kg. Vim tias titanium daim txhuam cev yog kim, titanium thiab titanium alloys kim. Kev tsim khoom thiab kev ua kom zoo ntawm titanium daim txhuam cev yog qhov nyuaj heev. Cov txheej txheem tsim khoom kuj tseem yuav tsum tau siv cov khoom siv kub, cov khoom siv hluav taws xob siab thiab lub tshuab nqus tsev. Kev nce nqi hluav taws xob kuj tseem cuam tshuam ncaj qha rau nws tus nqi siab. Qhov no ua rau tus nqi ntawm titanium alloys nyob twj ywm siab.

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