PolyDADMAC Cationic Coagulant for Iron Ore Concentrate Thickening
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Product Overview
PolyDADMAC, also known as Poly(dimethyl diallyl ammonium chloride) or PDADMAC, is a water-soluble cationic polymer widely used in mining, mineral processing, wastewater clarification, and sludge dewatering applications.
During iron ore beneficiation, large amounts of concentrate slurry and process water are generated. The slurry contains fine iron particles, silica minerals, clay, and other suspended solids. Due to their small particle size and surface charge, these particles can remain suspended for a long time, resulting in slow settling, poor thickener overflow quality, and inefficient water recovery.
Bluwat PolyDADMAC Cationic Coagulant works through charge neutralization and adsorption to destabilize suspended mineral particles. It promotes the formation of larger and stronger flocs, improving iron ore concentrate thickening, overflow clarification, and process water recycling.
Application in Iron Ore Concentrate Thickening
Iron ore concentrators require efficient thickening systems to increase solids concentration, recover process water, and improve downstream filtration performance.
PolyDADMAC is commonly used in:
Iron ore concentrate thickener feed treatment
Mineral slurry clarification
Iron ore beneficiation wastewater treatment
Tailings water recovery
Thickener overflow clarification
Fine iron particle settling
Filter press pretreatment
Process water recycling
By improving particle aggregation, PolyDADMAC helps optimize thickener operation and achieve cleaner overflow water.
Key Benefits
Strong Charge Neutralization Ability
Iron ore slurry particles often carry negative surface charges. PolyDADMAC provides strong cationic charge to neutralize these particles and improve coagulation efficiency.
Improved Thickener Performance
PolyDADMAC helps form larger mineral flocs, improving settling speed and increasing thickener underflow density.
Cleaner Thickener Overflow
Better floc formation reduces suspended solids in overflow water, improving water recovery and reducing recycling load.
Enhanced Solid-Liquid Separation
The product supports efficient separation of iron concentrate solids from process water during thickening and filtration.
Reduced Water Consumption
Improved clarification allows more process water to be recovered and reused in iron ore processing circuits.
Flexible Grade Selection
Bluwat offers multiple viscosity and molecular weight grades to match different iron ore slurry conditions and equipment requirements.
Working Principle
PolyDADMAC improves iron ore concentrate thickening through the following mechanism:
- Fine iron ore particles and mineral solids carry negative charges.
- PolyDADMAC neutralizes surface charges and destabilizes particles.
- Polymer chains adsorb onto particle surfaces.
- Particle aggregation forms larger mineral flocs.
- Flocs settle faster in thickening equipment.
- Clear water is recovered from thickener overflow.
Typical Iron Ore Applications
Iron Ore Concentrate Thickening
PolyDADMAC improves settling behavior of concentrate slurry before filtration or further processing.
Beneficiation Plant Wastewater Treatment
It helps remove suspended mineral solids from wastewater generated during ore processing.
Tailings Water Clarification
PolyDADMAC improves tailings pond settling and supports water recovery systems.
Filter Feed Conditioning
Used before filtration equipment to improve solid-liquid separation performance.
Recommended Treatment Process
Iron ore slurry or concentrate wastewater
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Water quality analysis
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PolyDADMAC dilution
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Rapid mixing and charge neutralization
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Slow mixing and floc growth
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Thickening or clarification
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Clear overflow water recovery
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Concentrate filtration or tailings dewatering
Product Specifications
Product Name: BLU DA Series PolyDADMAC Liquid
Chemical Name: Poly(dimethyl diallylammonium chloride)
Short Name: PolyDADMAC / PDADMAC
CAS No.: 26062-79-3
Appearance: Colorless to light yellow liquid
Solid Content: 20–50%
pH Value: 3.0–7.0
Specific Gravity at 25°C: 1.01–1.10
Charge Type: Cationic
Relative Molecular Weight: Low, medium, high, and very high molecular weight grades available
Brookfield Viscosity at 25°C: Below 200 cps to above 15000 cps depending on grade
Package:
25L plastic drum
200L plastic drum
1000L IBC drum
Available PolyDADMAC Grades
DA 20% Series
DA 201
Low molecular weight, viscosity below 200 cps
DA 202
Medium molecular weight, viscosity 200–700 cps
DA 203
Medium molecular weight, viscosity 700–1000 cps
DA 204
High molecular weight, viscosity 1000–2000 cps
DA 205
Very high molecular weight, viscosity 2000–3000 cps
DA 40% Series
DA 401
Low molecular weight, viscosity below 500 cps
DA 402
Medium molecular weight, viscosity 500–1000 cps
DA 403
Medium molecular weight, viscosity 1000–3000 cps
DA 404
High molecular weight, viscosity 3000–5000 cps
DA 405
High molecular weight, viscosity 5000–8000 cps
DA 406
Very high molecular weight, viscosity 8000–12000 cps
DA 407
Very high molecular weight, viscosity 12000–15000 cps
DA 408
Very high molecular weight, viscosity above 15000 cps
DA 45% Series
DA 451
High molecular weight grade, viscosity 8000–12000 cps
DA 50% Series
DA 501
Low-medium molecular weight, viscosity 1000–2000 cps
DA 502
Medium molecular weight, viscosity 2000–3000 cps
DA 503
High molecular weight, viscosity 3000–5000 cps
DA 504
High molecular weight, viscosity 5000–8000 cps
DA 505
Very high molecular weight, viscosity 8000–12000 cps
DA 506
Very high molecular weight, viscosity 12000–15000 cps
DA 507
Very high molecular weight, viscosity above 15000 cps
Application Method
The optimum PolyDADMAC dosage for iron ore concentrate thickening depends on:
Iron ore mineral composition
Slurry concentration
Particle size distribution
pH condition
Thickener design
Required overflow clarity
Before application, PolyDADMAC should be diluted according to the dosing system. When used alone, it is recommended to dilute the product to 0.5–5% concentration based on solid content.
Jar testing is recommended to select the most suitable grade and dosage. Proper mixing conditions should be maintained to maximize floc formation and avoid excessive shear.
Product Selection Guidance
For fine iron ore particles with slow settling characteristics, medium to high molecular weight PolyDADMAC grades are commonly selected.
For thickener overflow clarification, lower viscosity grades may provide better dispersion and faster charge neutralization.
For concentrate thickening and high solid slurry treatment, higher molecular weight grades may help improve floc strength and settling performance.
Final selection should be confirmed through laboratory testing and plant trial.
Packaging and Storage
Bluwat PolyDADMAC Liquid is supplied in:
25L plastic drums
200L plastic drums
1000L IBC drums
Store in original containers in a cool and dry place. Avoid heat sources, flame, and direct sunlight. Refer to TDS, MSDS, and product label for detailed storage information.
Why Choose Bluwat PolyDADMAC?
Bluwat Chemicals is a professional manufacturer and exporter of water treatment chemicals, providing PolyDADMAC, PAM, PAC, Polyamine, and other coagulants and flocculants for global industrial applications.
Advantages:
Professional cationic polymer manufacturer
Stable quality control
Multiple molecular weight grades
Suitable for mining and mineral processing applications
Technical support for chemical selection
COA, TDS, and MSDS available
Global export experience
FAQ
Can PolyDADMAC be used for iron ore concentrate thickening?
Yes. PolyDADMAC is suitable for mineral processing applications including iron ore concentrate thickening, slurry clarification, and tailings water treatment.
How does PolyDADMAC improve thickener efficiency?
It neutralizes particle charges and promotes floc formation, allowing mineral solids to settle faster and improving thickener overflow clarity.
Can PolyDADMAC replace PAM in iron ore processing?
PolyDADMAC and PAM have different functions. PolyDADMAC mainly provides charge neutralization, while PAM mainly improves floc growth through bridging. They can be used separately or together depending on process requirements.
Is PolyDADMAC compatible with mineral processing chemicals?
Yes. PolyDADMAC can be used with many conventional water treatment chemicals. Compatibility testing is recommended before large-scale application.
How do I choose the correct PolyDADMAC grade?
Grade selection depends on slurry characteristics, mineral composition, equipment type, and required settling performance. Jar testing is recommended.