Zinc Industry

Solid-liquid separation for electrolytic zinc

Centralized smelters in Latin America process over 1.5M tons/year. Each stage of the electrolytic process generates critical filtration challenges.

1.47M
tons/year Peru
344K
Cajamarquilla cap.
90%+
electrolytic process
Planta de procesamiento de zinc
Electrolytic Process

Each stage generates solid-liquid separation challenges

The electrolytic zinc process involves multiple critical points where TSF intervenes

01

Leaching

Calcine + H₂SO₄ → ZnSO₄
Challenge
Leach residue (Pb, Ag, Fe) requires separation
TSF Solution
TSF filter presses dewater residue
02

Iron Removal

Jarosite / Goethite
Challenge
Gelatinous precipitates difficult to filter
TSF Solution
TSF handles Goethite iron residues
03

Electrowinning

ZnSO₄ → Zn cathode (99.99%)
Challenge
Cell sediment affects purity
TSF Solution
TSF pneumatic cleaning without shutdown

3 of 5 stages require specialized solid-liquid separation

Smelters processing 300K+ tons/year cannot afford shutdowns or inefficiencies. TSF offers mobile solutions without CAPEX that intervene exactly where needed.

0%
Production downtime
$0
Initial CAPEX
100%
Mobile and flexible
TSF Solutions

Mobile services for zinc smelters

Specialized filtration at every critical point of the electrolytic process. No CAPEX investment, no shutdowns.

APPLICABLE

Leach Residue Filtration

Efficient separation of leach residue (Pb, Ag, Fe) with high-capacity mobile filter presses.

Up to 70 tons/day cake
Pb/Ag recovery
High abrasion handling
Validated technology
APPLICABLE

Zinc EW Cell Cleaning

Pneumatic cleaning with inline filtration. Maximum zinc electrolyte purity.

No electrolyte loss
Purity >99.99%
No shutdowns
Validated technology
APPLICABLE

Concentrate Dewatering

Mobile filter presses adapted for zinc concentrates with higher abrasiveness.

Up to 70 tons/day cake
Reinforced equipment
High Zn abrasiveness
Adaptable technology
CRITICAL

Jarosite/Goethite Residue Filtration

Specialized handling of gelatinous iron precipitates, the biggest filtration challenge in electrolytic zinc.

Up to 50 tons/day Fe residue
Gelatinous phase handling
Filtration optimization
Biggest zinc challenge
APPLICABLE

Water Clarification

Solids removal from clarified water to meet environmental regulations.

Up to 120 m³/day
Environmental compliance
Total mobility
Multi-industry
APPLICABLE

Fine Solids Removal

Fine solids treatment from clarifiers with zinc abrasiveness control.

Up to 14 tons/day solids
High abrasion equipment
Clarifier protection
Proven capacity
REFERENCE OPERATION

Cajamarquilla: The Scale of Electrolytic Zinc

The Cajamarquilla refinery in Peru is the largest zinc smelter in the Americas (344K tons/year), processing concentrates from multiple mines. This centralized scale defines why mobile TSF is strategic.

TSF OPPORTUNITY

TSF allows centralized smelters to optimize filtration without permanent CAPEX investment, adapting to feed variability and campaign volumes characteristic of electrolytic zinc.

Challenges at Scale

Massive iron residue volumes (Jarosite/Goethite)
Multiple feeds with high variability
Scaled shutdown costs
Critical continuous operation

Mobile TSF Advantages

Scalable capacity per campaign
No $5M+ CAPEX on fixed filtration
Flexibility for variable feed
Maintenance without affecting production
Results

Measurable improvements in electrolytic process

Standard operation comparison vs. optimization with specialized mobile TSF filtration

Zn Purity
Before
99.90%
cathodes
After
99.99%+
cathodes
Impurities
Before
80
ppm total
After
< 30
ppm total
Consumption
Before
3.6
kWh/kg Zn
After
3.1
kWh/kg Zn
Recovery
Before
88%
variable
After
95%+
consistent
+0.09%
additional purity
-60%
total impurities
-15%
EW energy
TSF Model

Why mobile at smelter scale?

Massive centralized volumes

Smelters 300K+ tons/year process iron residues in volumes that justify specialized services

Multiple feeds with high variability

Concentrates from multiple mines require flexibility that fixed equipment doesn't provide

Exponential shutdown costs

At smelter scale, each hour stopped costs $50K+. Mobile allows maintenance without stopping production

$0
Initial CAPEX
vs $5M-$15M fixed filtration at smelter scale

TSF Model at Scale

Scalable capacity per campaign, specialized operators, TSF maintenance without stopping smelter

Zinc operation in Latin America?

We evaluate your electrolytic zinc smelter and design a mobile solution adapted to your scale and specific conditions

Email: contacto@tsf.clPhone: +56 2 2334 7087Latin America