আয়নিক তরল নির্যাসক 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, উচ্চ তাপ স্থিতিশীলতা, and highly tunable nature.
1. Classification of Ionic liquid extractant
In hydrometallurgical processing, ionic liquids are utilized in following primary capacities:
ক. 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.
খ. 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. এই ক্ষেত্রে, 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.
উপায় দ্বারা, নীচের হিসাবে আমাদের ধাতু নিষ্কাশন, আপনার প্রয়োজন হলে, অনুগ্রহ করে নির্দ্বিধায় আমাদের জিজ্ঞাসা করুন:
- P204 (D2EHPA or HDEHP) This is used for first step to remove impurity for laterite nickel ore.
- P507 non-ferrous metal extractant for copper, zinc, cobalt-nickel, cadmium, gold-silver, platinum group metals, rare earths and so on.
- DY272 Nickel cobalt separation extractant, it can take cobalt out from nickel cobalt solution, then leave pure nickel.
- DY984N copper solvent extraction reagent.
- QL256-2 নিকেল কোবাল্ট ম্যাঙ্গানিজ সহ নিষ্কাশন নিষ্কাশন.
- DY316 লিথিয়াম নির্যাসক.
- DY319 ব্যাটারি পুনর্ব্যবহার করার জন্য উচ্চ দক্ষতা নিকেল কোবাল্ট সহ নিষ্কাশন নিষ্কাশন, can take out nickel and cobalt together from Lithium battery electrolyte.
- DY366 স্ক্যান্ডিয়াম নির্যাসক.
- DY377 দক্ষ নিকেল এবং হীরা বিচ্ছেদ নিষ্কাশনকারী.
