Pengekstrak cecair ionik represent a highly innovative class of “designer solvents” in liquid-liquid extraction and hydrometallurgy. Composed entirely of ions with a melting point typically below 100°C, these organic salts are increasingly evaluated as alternatives to traditional volatile organic compounds and molecular extractants due to their near-zero volatility, Kestabilan terma yang tinggi, and highly tunable nature.
1. Classification of Ionic liquid extractant
In hydrometallurgical processing, ionic liquids are utilized in following primary capacities:
A. ILs as Non-Functionalized Diluents
Instead of kerosene or toluene, a conventional molecular extractant is dissolved inside a highly hydrophobic, chemically inert ionic liquid.
Benefit: Studies indicate that switching from an organic diluent to an IL can enhance metal extraction efficiency and selectivity by several orders of magnitude.
B. Pure ILs as Active Extractants
Many standalone ionic liquids can extract metals directly via their inherent anionic or cationic coordination behavior without needing an auxiliary extractant. Contohnya, phosphonium- or ammonium-based ILs paired with thiocyanate or chloride anions are highly effective at capturing metal-chloro complexes or transitioning heavy metals via anion exchange.
2. Extraction Mechanisms of Ionic liquid extractant
The chemistry of extraction shifts significantly when moving from molecular organic phases to ionic liquid phases.
3. Industrial Advantages & Challenges of Ionic liquid extractant:
Enhanced Performance: Often provides drastically elevated separation factors for notoriously difficult splits.
Process Safety: Non-flammable and zero vapor pressure minimizes fire hazards and volatile emissions.
By the way, pengekstrak logam kami seperti di bawah, jika anda perlukan, sila berasa bebas untuk bertanya kepada kami:
- P204 (D2EHPA atau HDEHP) Ini digunakan untuk langkah pertama untuk membuang kekotoran untuk bijih nikel laterit.
- P507 pengekstrak logam bukan ferus untuk kuprum, zink, kobalt-nikel, kadmium, emas Perak, logam kumpulan platinum, nadir bumi dan sebagainya.
- DY272 Pengekstrak pengasingan kobalt nikel, ia boleh mengeluarkan kobalt daripada larutan nikel kobalt, kemudian tinggalkan nikel tulen.
- DY984N reagen pengekstrakan pelarut kuprum.
- QL256-2 Pengekstrakan bersama nikel Kobalt Mangan.
- DY316 Pengekstrak litium.
- DY319 pengekstrak bersama nikel kobalt kecekapan tinggi untuk kitar semula bateri, boleh mengeluarkan nikel dan kobalt bersama-sama daripada elektrolit bateri Litium.
- DY366 Ekstrak skandium.
- DY377 pengekstrak pemisahan nikel dan berlian yang cekap.
