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Polyelectrolyte Flocculant
Created with Pixso. Anionic Polyacrylamide Emulsion for Coal Washing Water Clarification and Tailings Thickening with Very-High Molecular Weight

Anionic Polyacrylamide Emulsion for Coal Washing Water Clarification and Tailings Thickening with Very-High Molecular Weight

Brand Name: BLUWAT
Model Number: Blufloc Emulsion
MOQ: 1000kgs
Price: negotiable
Delivery Time: 5-10days
Detail Information
Place of Origin:
China
Certification:
ISO9001
Product Name:
Anionic Polyacrylamide Emulsion
Brand Name:
BluFloc
Abbreviation:
APAM Emulsion
Product Category:
Water-Soluble Polymer Flocculant
Chemical Type:
Anionic Acrylamide Copolymer
Physical Form:
Liquid Emulsion
Available Formulations:
Oil-Based Emulsion And Water-Based Emulsion
Molecular Weight:
Very High
Anionic Charge Degree:
Medium To High
Solubility:
Dispersible And Soluble In Water After Proper Dilution
Main Functions:
Flocculation, Clarification, Sedimentation, Thickening And Solid-Liquid Separation
Grade:
Industrial Grade
Manufacturer:
Yixing Bluwat Chemicals Co., Ltd.
Customization:
Molecular Weight And Anionic Charge Density Available Upon Request
Packaging Details:
30kgs, 50kgs, 250kgs, 1250kgs drums
Highlight:

Anionic Polyacrylamide PAM for coal washing

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Polyelectrolyte flocculant for water clarification

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PAM emulsion for slurry settling

Product Description
Blufloc Anionic PAM Emulsion

Anionic PAM Emulsion for Coal Washing Water Clarification and Tailings Thickening

Aggregate fine coal, shale, and clay for faster settling, clearer recycled wash water, and more stable tailings thickening with oil-based EA 6520 and water-based EWA 7520.

Very-High Molecular Weight Fine Coal and Clay Bridging Oil- and Water-Based Options Wash-Water Recycling

Application Snapshot

  • Product Anionic PAM Emulsion
  • Grades EA 6520 and EWA 7520
  • Primary Role Fine-solids settling, recycled-water clarification, and tailings thickening
  • Selection Coal-, clay-, water-, and circuit-specific laboratory and plant trials
Product Introduction

Coal Rank, Clay, and Process Water Change Polymer Demand

Coal washing circuits accumulate ultrafine coal, shale, and clay. Poor settling reduces recycled-water quality, disrupts separation performance, and increases tailings inventory.

The preferred APAM depends on coal rank, clay mineralogy, process-water salinity, particle size, and whether the objective is clarified water, thickener underflow, or flotation-tailings capture.

Blufloc APAM Emulsion

Anionic PAM emulsion aggregates fine coal, clay, and mineral solids for faster settling and clearer recycled wash water.

Blufloc very-high-molecular-weight EA 6520 and EWA 7520 support continuous clarification and tailings thickening when selected with fresh, representative slurry.

Application Challenges

Where Coal Washing Water Treatment Becomes Unstable

Seam changes, fine clay, recycled-water chemistry, solids loading, and hydraulic shear can shift the optimum polymer grade, dose, dilution, and addition conditions.

01

Stable Fine Suspensions

Ultrafine coal and clay can remain dispersed and settle too slowly for efficient water recovery.

02

Dark Clarifier Overflow

Residual fine solids can reduce recycled-water quality and disturb downstream separation performance.

03

Seam and Ore Changes

Coal rank, ash, clay type, and particle-size distribution can alter adsorption and polymer demand.

04

Production-Peak Loading

High solids loading and short contact time can reduce distribution, floc growth, and settling performance.

Treatment Mechanism

How the PAM Emulsion Works

APAM chains adsorb onto fine coal and mineral surfaces and bridge multiple particles into larger aggregates that settle under gravity. Very-high molecular weight supports long-range bridging, while the anionic degree must match particle surfaces, dissolved ions, and circuit conditions.

Step 1

Prepare and Distribute

Activate and dilute the selected emulsion, then distribute it evenly through the fresh slurry.

Step 2

Bridge Fine Solids

Long APAM chains link fine coal, shale, clay, and mineral particles into larger aggregates.

Step 3

Settle and Clarify

Gentle floc growth supports clearer overflow and a denser, more controllable thickener underflow.

Important: The grades below are starting candidates, not a fixed prescription. Final selection and dosage require representative laboratory and plant trials. Confirm carrier-specific preparation instructions on the current grade-specific TDS.
Recommended Grades

Recommended Blufloc Grades

Compare candidates on equal active polymer mass using fresh, fully mixed coal slurry at realistic solids concentration, temperature, salinity, and hydraulic shear.

Grade Base Molecular Weight Charge Suggested Screening Role
EA 6520 Oil-based Very High High anionic Strong candidate for coal tailings and clay-rich slurry
EWA 7520 Water-based Very High Medium anionic Water-based comparator for automatic wash-water treatment

The product pages classify the cationic EC and EWC series as high molecular weight and the anionic EA and EWA grades as very high molecular weight. Confirm exact commercial specification limits, active content, viscosity, shelf life, and preparation instructions on the current grade-specific TDS and order specification.

Product Advantages

Rapid Settling and Clearer Recycled Wash Water

  • Rapid settling of fine coal and mineral solids
  • Potential for clearer recycled wash water
  • Continuous liquid dosing for stable treatment
  • Grade choice for different seam and clay conditions
  • Laboratory evaluation using fresh slurry
Application Process

Test with Fresh Slurry and Realistic Circuit Conditions

1

Collect Fresh Slurry

Collect from the actual circuit and keep the sample fully mixed to prevent selective settling before testing.

2

Record Coal and Water Conditions

Document seam, ash, clay, solids, particle size, pH, conductivity, salinity, and temperature.

3

Compare Dose and Dilution

Prepare each carrier correctly and apply repeatable mixing under the actual slurry concentration and shear range.

4

Measure the Full Response

Record settling rate, interface clarity, compacted solids, floc strength, overflow color, and TSS.

5

Validate through Seam Changes

Plant-test during representative production and confirm performance during normal loading and seam transitions.

Product Selection Guidance

Let Coal, Clay, and Circuit Duty Decide the Optimum

EA 6520 is a strong first candidate for fine coal and clay-rich tailings. EWA 7520 should be compared where medium anionic charge or water-based dosing offers better process compatibility. Fresh slurry testing should guide the final choice.

Compare Total Operating Cost

Neat-emulsion price per kilogram can be misleading. Compare on active polymer mass and include activity, preparation efficiency, dose, equipment throughput, underflow quality, recycled-water impact, and downstream disposal cost.

  • Active polymer dose expressed per ton of dry solids
  • Settling rate, overflow TSS, and recycled-water quality
  • Underflow solids, handling behavior, and tailings inventory
  • Preparation, pumping, maintenance, and total disposal cost
Trial Data

Operating Indicators to Record

  • Settling rate
  • Overflow TSS
  • Underflow solids
  • Polymer grams per ton
  • Recycled-water impact
Troubleshooting

Retest When Seam or Clay Conditions Change

!

If Flocculation Deteriorates after a Seam Change

Retest the grade and dose instead of only increasing polymer addition. Different clay minerals can change the preferred anionic charge, adsorption response, and dilution requirement.

Also check whether high shear, concentrated polymer feed, unstable make-down, uneven injection, or changing recycled-water salinity is preventing uniform distribution.

Supply Options

Packaging

25 kg Container
200 kg Plastic Drum
1000 kg IBC
Safe Handling

Storage and Handling

Keep the package sealed in a cool, dry, ventilated area. Protect it from direct sunlight, freezing, and excessive heat.

Follow the grade-specific TDS and SDS for shelf life, handling limits, and transport classification. Polymer spills can make floors extremely slippery and should be contained and cleaned promptly.

25+ Years Water-treatment chemical manufacturing experience
3 Plants Modern production and supply support
Manufacturer Support

Why Choose Bluwat Chemicals

  • More than 25 years of manufacturing experience supported by three modern plants
  • More than 800,000 tons delivered and exports to over 100 countries and regions
  • Factory-direct coordination for grade selection, documentation, packaging, and logistics
  • Laboratory screening with representative customer coal slurry and recycled-water samples
  • TDS, SDS, COA, and applicable certification documents for the selected grade and market

For coal slurry settling and wash-water recycling, Bluwat can screen adjacent PAM emulsion grades, review preparation and dosing conditions, and help define a plant-trial plan using agreed settling, overflow, underflow, recycled-water, and cost indicators.

Technical Service

Quality Control and Technical Support

Specification Confirmation

Confirm the required grade specification and order documentation before production and shipment.

Representative Sample Testing

Shortlist products under realistic pH, temperature, solids, coal, clay, water chemistry, and shear.

Preparation and Scale-Up

Supply clear make-down, dilution, dosing, mixing, and scale-up recommendations for the selected grade.

Plant-Trial Data Review

Adjust charge level, dose, addition point, dilution, or mixing conditions using plant-trial data.

Frequently Asked Questions

Coal Washing Water Treatment FAQ

Can APAM recover fine coal?

It can aggregate suspended solids, but whether the captured material is recovered product or tailings depends on circuit design, ash content, and product-quality requirements.

Why test fresh coal slurry?

Particle surfaces, selective settling, oxidation, and slurry distribution can change during storage, making an old or partially settled sample less representative.

Does recycled-water salinity matter?

Yes. Dissolved ions can affect polymer-chain conformation, adsorption, and interactions with coal, shale, clay, and other mineral surfaces.

Can the same dose be used for every seam?

Not always. Seam, ash, particle-size distribution, and clay changes can require a different dose band, dilution, addition point, or grade re-screen.

EA and EWA Screening

Match the APAM Grade to the Coal, Clay, Process Water, and Circuit Duty

Screen EA 6520 and EWA 7520 with fresh representative slurry, controlled carrier-specific preparation, and realistic mixing. Confirm the preferred grade using settling rate, overflow TSS, underflow solids, active polymer dose, recycled-water impact, operating stability, and total cost.