Lantanoid va Aktinoidlar

China India CISa Malaysia

*Data for CIS (Commonwealth of Independent States) is an estimate.

Раствор (Y, Ln)2(S04)3 иттриевой подгруппы

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1. MINING

From the ground to crushed ore

2. MILLING

Grinding and beneficiation of REE minerals

3. HYDROMETALLURGY

Cracking the REE minerals to produce mixed REE oxides concentrates

4. SEPARATION

Separating and purifying the individual REE oxides

Lantanoidlarning olinishi 2

► Alohida olingan metal komplekslariga oksalatli ishlov beriladi va u termik parchalanadi:

Ln2(C2O4)3 = Ln2O3 + 3CO + 3CO2

► Oksidlar ftoridga o’tkaziladi:

Ln2O3 + 6HF = 2LnF3 + 3H2O

► Oddiy moddalar metallotermiya usulida qaytarib olinadi:

2LnF3 + 3Ca = 3CaF2 + 2Ln

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► Qiyin suyuqlanuvhan metallar - 795-1660°C

► Barchasi kumushsimon oq; Pr va Nd sarg’ish

► Polimorfizm xos;

► Kristall panjarasi geksagonal tuzilishli;

► Ba’zi lantanoidlar yuqori temperaturada ham ferromagnit

► Elektr o’tkazuvchanligi past (Cu dan 25-50 marta)

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