Pompe à boue de lithium pour le traitement du carbonate de lithium

Project Information	Détails
Customer Country	Chile
L'industrie	Lithium Resource Processing / Lithium Carbonate Production / Lithium Salt Processing
Processus	Mineral leaching, lithium salt solution treatment, purification, concentration, lithium carbonate precipitation and mother liquor circulation
Main Media	Sulfuric acid leach solution, lithium sulfate solution, acidic process liquid, lithium carbonate slurry, mother liquor and process circulation liquid
Main Pumping Conditions	Corrosive liquids, corrosive slurry, solid particles and continuous operation
Solution de pompe	UHB, CYF and CYH Series Lithium Slurry Pump
Main Selection Concerns	Corrosion resistance, wear resistance, mechanical sealing and continuous operation
Supplier	Pompe Changyu

Contexte du projet

The customer is a lithium resource processing company in Chile. Its production process includes mineral leaching, lithium salt solution treatment, purification, concentration, lithium carbonate precipitation and mother liquor circulation. The pumping conditions change between process stages. Some process liquids are strongly corrosive, while the slurry generated during lithium carbonate precipitation and circulation may contain fine particles and crystals. For this reason, the pumps need to handle corrosion, particle wear, sealing and continuous operation.

Changyu Pump selected UHB, CYF and CYH series pumps according to the medium composition, corrosion level, solids content and operating conditions of each process section.

Main Pumping Conditions

Étape du processus	Moyen	Pumping Condition	Pompe recommandée
Lixiviation	Sulfuric acid leach solution	Strongly corrosive, low solids	FCJE
Lithium Salt Solution Treatment	Lithium sulfate solution	Corrosive liquid	CYF / CYH
Acidic Process Liquid Transfer	Acidic process liquid	Corrosive liquid, continuous operation	CYF / CYH
Lithium Carbonate Precipitation	Lithium carbonate slurry	Corrosion + solid particles	UHB
Mother Liquor Circulation	Lithium carbonate mother liquor	Corrosive liquid, continuous circulation	CYH
Process Circulation	Process circulation liquid	Long-term operation	CYH
Product Washing	Product washing liquid	Depends on actual composition	CYH / Selected by condition

Why a Lithium Slurry Pump Is Used for Lithium Carbonate Slurry

Lithium carbonate precipitation produces a slurry rather than a completely clear liquid. Fine particles and crystals can pass through the pump together with the liquid, creating a wear issue in addition to corrosion.

For this part of the process, Changyu Pump uses the UHB corrosion and wear resistant slurry pump. The final UHB model is selected according to the actual solids content, particle size, temperature, flow rate and head.

For more information on the UHB series specifications, please read our product article:Pompe à boues chimiques horizontale de la série UHB

Engineer’s Advice

• If the lithium carbonate process liquid contains noticeable solid particles, it should not be treated simply as an acid-pumping application.
• Corrosion and particle wear need to be considered together. Solids content and particle size are particularly important because they affect the impeller, flow passages and mechanical seal.

CYF Fluoroplastic-Lined Centrifugal Pump for Acidic Liquids

CYF is mainly used for sulfuric acid leach solution, acidic process liquid, lithium salt solution and other corrosive liquids with relatively low solids content.

The pump uses a fluoroplastic-lined structure to reduce direct contact between the corrosive medium and the metal base.

For sulfuric acid leach solution, the material should not be selected from the medium name alone. Acid concentration and operating temperature also need to be confirmed.

For more information on the CYF series specifications, please read our product article:Pompe centrifuge en plastique fluoré de la série CYF

CYH Corrosion Resistant Chemical Pump for Process Liquids

CYH is mainly used for acidic solutions, lithium salt process liquids, mother liquor and other corrosive chemical media.

The wetted material can be selected according to the medium composition, concentration, temperature and operating conditions.

For mother liquor and process circulation, continuous operation is also an important consideration because the pump may need to operate for long periods.

For more information on the CYH series specifications, please read our product article:Pompe centrifuge en acier inoxydable pour produits chimiques de la série CYH

Pump Selection Logic

The basic selection logic for this project was:

• Corrosive liquid with low solids content → CYF / CYH
• Corrosive medium containing solid particles → UHB

The final pump model still needs to be confirmed according to the actual flow rate, head, concentration, temperature, solids content and particle size.

Engineer’s Advice for Lithium Slurry Pump Selection

For lithium processing applications, pump selection should start with the actual operating condition rather than the medium name alone.

Before selecting a Lithium Slurry Pump, the following information should be confirmed:

• Medium name and composition
• Acid or salt concentration
• Température
• Teneur en solides
• Particle size
• Débit
• Tête
• Fonctionnement continu ou intermittent

These parameters help determine whether the application requires a corrosion-resistant chemical pump or a corrosion- and wear-resistant slurry pump, as well as the appropriate wetted material and sealing configuration.

Conclusion

This Chilean lithium carbonate project did not use one pump type for every process section.

• FCJE was selected for acidic leach solutions and other corrosive liquids.
• CYH was used for lithium salt solutions, mother liquor and other process liquids.
• UHB was selected for corrosive slurry containing solid particles.

For lithium carbonate production, pumping conditions can change significantly between process stages. Corrosion, solid particles, temperature and continuous operation therefore all need to be considered when selecting a Lithium Slurry Pump.

Changyu Pump provides Lithium Slurry Pump solutions based on actual medium and operating conditions, with UHB, CYF and CYH series available for different liquid and slurry applications. If you’re facing similar operating conditions, contact us today.