Bluwat PolyDADMAC DA 407 for Kaolin and China Clay Beneficiation
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Product Overview
Bluwat PolyDADMAC DA 407 is a liquid cationic polymer based on Poly(dimethyl diallylammonium chloride), also known as PolyDADMAC or PDADMAC. It is supplied as a high charge density polymer solution with strong coagulation and flocculation performance.
In kaolin and china clay beneficiation, the process water often contains ultrafine clay particles, silica, organic impurities, and suspended mineral solids. These fine particles are difficult to settle naturally and may cause high turbidity, poor overflow clarity, slow thickening, and inefficient dewatering.
PolyDADMAC DA 407 helps destabilize fine clay particles through cationic charge neutralization. It promotes particle aggregation, improves floc formation, and supports better solid-liquid separation in kaolin washing, classification, thickening, and wastewater recycling systems.

Application in Kaolin and China Clay Beneficiation
Kaolin and china clay processing requires stable separation of fine particles and efficient recovery of process water. Bluwat PolyDADMAC DA 407 can be applied in different stages of the beneficiation and wastewater treatment process.
Typical applications include:
Why DA 407 Is Suitable for Clay Processing
DA 407 belongs to Bluwat’s 40% solid content PolyDADMAC liquid series. It has very high molecular weight and high viscosity, making it suitable for difficult mineral slurry systems where stronger floc formation and better settling performance are required.
For kaolin and china clay wastewater, DA 407 can help improve floc strength, accelerate clay particle settling, and enhance water recovery from high-turbidity process streams.
Key Benefits
Strong Cationic Charge Neutralization
Fine kaolin and china clay particles often remain suspended due to stable surface charges. DA 407 provides strong cationic charge to neutralize these particles and support rapid coagulation.
Improved Clay Particle Settling
The very high molecular weight of DA 407 helps form larger and stronger flocs, improving settling speed in clarification tanks, thickeners, and settling ponds.
Better Overflow Clarity
By reducing suspended solids and turbidity, DA 407 supports clearer overflow water that can be reused in kaolin washing and beneficiation systems.
Enhanced Thickening Performance
DA 407 improves particle aggregation before thickening, helping increase underflow solids concentration and stabilize thickener operation.
Supports Sludge Dewatering
The product can improve floc structure and support more efficient water release during clay sludge dewatering processes.
Easy Liquid Application
As a liquid polymer, DA 407 is convenient for dilution, dosing, and continuous operation in mineral processing plants.
Can Be Used Alone or with Inorganic Coagulants
DA 407 can be applied alone or combined with inorganic coagulants such as Polyaluminium Chloride when process water quality requires enhanced treatment.
Working Principle
Bluwat PolyDADMAC DA 407 improves kaolin and china clay beneficiation water treatment mainly through charge neutralization and floc formation.
Treatment mechanism:
1. Fine clay particles carry negative surface charges.
2. DA 407 neutralizes these charges and destabilizes particles.
3. Destabilized particles collide and aggregate.
4. Larger clay flocs are formed.
5. Flocs settle faster in thickeners or clarifiers.
6. Clearer process water is recovered for reuse.
Recommended Treatment Process
Kaolin or china clay process wastewater
↓
Water quality analysis and pH check
↓
DA 407 dilution
↓
DA 407 dosing and rapid mixing
↓
Slow mixing for floc growth
↓
Sedimentation, thickening, or clarification
↓
Clear water recovery
↓
Clay sludge dewatering or disposal
Product Specifications
Application Fields: Mining, kaolin beneficiation, wastewater treatment, sludge dewatering, paper-making, oil industry, and industrial clarification.
Package: 25L plastic drum, 200L plastic drum, or 1000L IBC drum.
Application Method
For kaolin and china clay beneficiation water treatment, DA 407 should be diluted before dosing. When used alone, the recommended dilution concentration is generally 0.5–5% based on solid content.
The optimum dosage depends on: Clay slurry concentration, Particle size distribution, Water turbidity, pH condition, Mineral composition, Thickener or clarifier design, Required overflow clarity, and Dewatering target.
Jar testing is recommended before plant application. The dosing point and mixing speed should be carefully controlled to ensure uniform dispersion and avoid breaking formed flocs.
Product Selection Guidance
DA 407 is suitable when the clay process water contains very fine suspended particles and requires stronger floc formation. For lower turbidity water or systems requiring faster dispersion, lower viscosity PolyDADMAC grades may be considered.
Packaging and Storage
Bluwat PolyDADMAC DA 407 is supplied in 25L, 200L, and 1000L IBC drums. Store the product in original containers in a cool and dry place. Keep away from heat, flame, and direct sunlight.
Why Choose Bluwat PolyDADMAC DA 407?
Bluwat Chemicals is a professional manufacturer and exporter of water treatment chemicals, supplying PolyDADMAC, PAM, PAC, Polyamine, and other coagulants and flocculants.
- ✔ 40% liquid PolyDADMAC grade
- ✔ Very high molecular weight
- ✔ High charge density cationic polymer
- ✔ Technical support for jar testing and dosage optimization
FAQ
PolyDADMAC DA 407 is a 40% solid content liquid cationic polymer with very high molecular weight and Brookfield viscosity of 12000–15000 cps.
Yes. DA 407 is suitable for kaolin and china clay process water clarification, clay slurry settling, thickening, and sludge dewatering applications.
DA 407 neutralizes the surface charge of fine clay particles and promotes floc formation, helping suspended solids settle faster and improving overflow water clarity.
Yes. DA 407 can be used with PAM when additional floc growth, faster settling, or better dewatering performance is required.
Product Overview (Continued)
Bluwat PolyDADMAC DA 407 is a liquid cationic polymer based on Poly(dimethyl diallylammonium chloride), also known as PolyDADMAC or PDADMAC. It is supplied as a high charge density polymer solution with strong coagulation and flocculation performance.
In kaolin and china clay beneficiation, the process water often contains ultrafine clay particles, silica, organic impurities, and suspended mineral solids. These fine particles are difficult to settle naturally and may cause high turbidity, poor overflow clarity, slow thickening, and inefficient dewatering.
PolyDADMAC DA 407 helps destabilize fine clay particles through cationic charge neutralization. It promotes particle aggregation, improves floc formation, and supports better solid-liquid separation in kaolin washing, classification, thickening, and wastewater recycling systems.
Application in Kaolin and China Clay Beneficiation
Kaolin and china clay processing requires stable separation of fine particles and efficient recovery of process water. Bluwat PolyDADMAC DA 407 can be applied in different stages of the beneficiation and wastewater treatment process.
Why DA 407 Is Suitable for Clay Processing
DA 407 belongs to Bluwat’s 40% solid content PolyDADMAC liquid series. It has very high molecular weight and high viscosity, making it suitable for difficult mineral slurry systems where stronger floc formation and better settling performance are required.
Key Benefits
Strong Cationic Charge Neutralization
Fine kaolin and china clay particles often remain suspended due to stable surface charges. DA 407 provides strong cationic charge to neutralize these particles and support rapid coagulation.
Improved Clay Particle Settling
The very high molecular weight of DA 407 helps form larger and stronger flocs, improving settling speed in clarification tanks, thickeners, and settling ponds.
Working Principle
Bluwat PolyDADMAC DA 407 improves kaolin and china clay beneficiation water treatment mainly through charge neutralization and floc formation.
Recommended Treatment Process
Kaolin or china clay process wastewater → Water quality analysis and pH check → DA 407 dilution → DA 407 dosing and rapid mixing → Slow mixing for floc growth → Sedimentation, thickening, or clarification → Clear water recovery → Clay sludge dewatering or disposal.
Product Specifications
Product Name: Bluwat PolyDADMAC DA 407. Solid Content: 39.0–41.0%. pH Value: 3.0–7.0. Brookfield Viscosity at 25°C: 12000–15000 cps.
Application Method
For kaolin and china clay beneficiation water treatment, DA 407 should be diluted before dosing. Jar testing is recommended before plant application.
Product Selection Guidance
DA 407 is suitable when the clay process water contains very fine suspended particles and requires stronger floc formation.
Packaging and Storage
Supplied in 25L, 200L, and 1000L IBC drums. Store in a cool and dry place.
Why Choose Bluwat PolyDADMAC DA 407?
Bluwat Chemicals is a professional manufacturer and exporter of water treatment chemicals, providing high-performance solutions for mining and mineral processing.
FAQ
When used alone, DA 407 is usually diluted to 0.5–5% concentration based on solid content before dosing.
The dosage should be confirmed by jar testing based on slurry concentration, turbidity, particle size, process pH, and treatment target.










