Replacement for Praestol 2500 nonionic polyacrylamide

Replacement for Praestol 2500 nonionic polyacrylamide

Our high molecular weight nonionic flocculants offer flocculation efficiency comparable to Praestol 2500 in applications such as mineral processing, coal washing, and industrial wastewater treatment. Free samples and beaker tests are available.25kg / 650kg / 1000Kg bags

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Why can HRFLOC Nonionic Polyacrylamide replace Praestol 2500?

Our product matches the nonionic character and high molecular weight range of Praestol 2500, ensuring:

In wastewater with high salinity, such as that from mining and coal washing, our product maintains stable flocculation effects and does not experience performance degradation due to charge shielding, unlike ionic polymers.
Nonionic polyacrylamide exhibits stable performance under acidic conditions, and our alternative can continuously exert flocculation effects for acidic wastewater or mineral processing fluids with low pH values.
The residual amount of monomers in the product is controlled at ≤0.05%, which meets the safety standards for PAM used in drinking water and the food industry.

Performance Comparison

NPAM for Paper Mill Water Purification

Turns turbid paper white water into crystal-clear reusable water. Premium NPAM flocculation rapidly aggregates fibers and fillers, accelerating settlement for superior clarity. Ensures compliant discharge or efficient recycling.

NPAM for food factories water treatment

Utilizes NPAM for powerful flocculation to remove suspended solids, ensuring superior water purification. Ideal for food factory treatment, it produces clear, safe effluent that meets strict discharge and reuse standards.

NPAM for stone processing wastewater treatment

Leverages premium NPAM flocculation to rapidly settle stone powder and fines, dramatically enhancing water purification. Delivers crystal-clear recycled water for stone fabrication plants.

HRFLOC Nonionic Polyacrylamide

Product Name	Non-ionic Polyacrylamide	Anionic Polyacrylamide
Cas No.	9003-05-8
Appearance	Off-white Granular Powder
Product Code	HRFLOC-A606	HRFLOC-A608	HRFLOC-A613	HRFLOC-A623	HRFLOC-A658	HRFLOC-A678
Charge Density	Very Low	Low	Low	Medium	Medium	High
Molecular Weight	High	High	High	Very High	Very High	Very High
Solid Content(%)		≥90
Acrylamide Monomer(%)		≤0.05
PH 1% Soulution	6-8
Dissolution Time(mins)	≤120	≤90

Product PDF SDS

why choose hangrui polyacrylamide manufacturer

Stable & Reliable PAM Product Quality

Professional Customized Solution Service

Factory Direct Supply & Sufficient Capacity

Hangrui Mature R&D & Technical Support

Strict Quality Control & Complete Qualifications

Perfect After-Sales & Global Service System

The use method of nonionic polyacrylamide

1.Wear protective equipment

Wear gloves, safety goggles, and a dust mask. Although nonionic PAM has low irritation, you should still avoid prolonged skin contact and prevent dust inhalation when handling the powder.

2.Prepare the dissolving tank and water

Use a clean plastic or stainless steel dissolving tank. Fill it with clean, neutral water (pH 6-8) with low hardness. Nonionic PAM is highly sensitive to water quality, and high-hardness water can severely affect its dissolution and performance.

3.Calculate and weigh the powder

Calculate the required amount based on the target concentration (typically 0.05%–0.3%). Nonionic PAM has a high molecular weight, so the dosage is usually lower than that of anionic PAM. Weigh the powder accurately to avoid waste or insufficient effect.

4.Add water first, then start mixing

Pour the prepared water into the tank, then start the mixer before adding the powder. Use a low-to-moderate stirring speed (150–300 rpm) — high speed can break the polymer chains and reduce the flocculation effect.

5.Sprinkle powder slowly and evenly

Sprinkle the powder slowly and evenly along the edge of the vortex, not directly into the center. Nonionic PAM is prone to forming undissolved clumps ("fish eyes") if added too quickly.

6.Keep mixing until fully dissolved

Continue stirring for 45–60 minutes. Stop stirring only when the solution is completely clear, with no visible particles or gel clumps. Do not stir at too high a speed, as this will degrade the polymer.

7.Let the solution mature

Let the solution stand for 30–60 minutes to ensure full hydration of the polymer chains. The maturing process is critical for nonionic PAM to reach its optimal performance.

8.Determine the dosage by jar tests

Conduct jar tests to find the optimal dosage. Nonionic PAM is often used for low-temperature or highly turbid water, so test different dosages and mixing times to achieve the best flocculation and clarification effect.

9.Add the solution to the treatment system

Add the matured solution to the treatment system, usually before the flocculation tank. Ensure sufficient mixing time to allow the polymer to fully contact and react with the suspended solids.

10.Use the solution promptly and clean the equipment

The prepared nonionic PAM solution is less stable than anionic solutions, so it is best used within 12 hours. After use, rinse the dissolving tank and mixer thoroughly with clean water to prevent residue buildup.