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Gear Metering Pump: The Indispensable Choice for Extraction Feed Control
Gear Metering Pump: The Indispensable Choice for Extraction Feed Control
In liquid-liquid extraction processes, one factor matters more than the extractant itself — the precise control of the phase ratio (O/A ratio).
Whether you're working in hydrometallurgy (copper, cobalt, nickel, lithium, rare earths), rare earth counter-current extraction lines, or lithium extraction from salt lakes, you'll face a common challenge when feeding low-viscosity extraction liquids (aqueous or organic phases, viscosity close to water). Conventional pumps often suffer from unstable flow, pulsation, and frequent phase ratio fluctuations, leading to reduced extraction efficiency and chemical waste.
The gear metering pump is specifically designed to solve this problem.
Why Is It the Industry Standard for Extraction Feed?
| Challenge | Gear Metering Pump Solution |
|---|---|
| Low-viscosity fluids cause internal leakage and poor pressure build-up | Precision-machined gear clearances deliver volumetric efficiency >95%, maintaining stable pressure even with low-viscosity media |
| Phase ratio instability affects extraction balance | Pulsation-free output with repeatability ≤ ±0.3% — flow remains stable over long-term operation |
| Corrosion and leakage risks from organic solvents | All stainless steel / Hastelloy construction + magnetic drive or double mechanical seals — leak-free design |
| Frequent process adjustments needed | Flow can be adjusted linearly online with VFD or servo motor control |
Typical Applications (Find Your Scenario at a Glance)
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Hydrometallurgy: Organic extractant feed for copper, cobalt, nickel, lithium, rare earths (P204, P507, N235, M564, etc.)
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Fine Chemical / Pharmaceutical: Reaction solution extraction, API intermediates, solvent feed (ethyl acetate, dichloromethane, toluene, etc.)
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Rare Earth Separation: Organic and aqueous phase precision metering in counter-current extraction lines
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Lithium Battery Materials & Salt Lake Lithium Extraction: Extractant feed and circulation for impurity removal and lithium recovery
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Environmental Extraction: Quantitative feeding of extractants in phenol removal, heavy metal removal, or solvent recovery systems
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Laboratory / Pilot Plants: High-precision small-flow feed for continuous extraction units
In the industry, this pump is commonly referred to as an Extraction Feed Metering Pump, Organic Phase Feed Pump, or Liquid-Liquid Extraction Dosing Pump.
Need Selection Advice or a Quote?
If you are planning an extraction process, or struggling with feed fluctuations on an existing line, feel free to reach out.
CIXIFM winny
📧 sales01@cxflowmeter.com
📞 WhatsApp: +86 18049841995
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