How is DTPMPA used in papermaking?

DTPMPA (Diethylene Triamine Penta (Methylene Phosphonic Acid)) is mainly used as chelating agent and scale inhibitor in paper industry, the following are its specific applications:

Chelating agent:

Prevent metal ions from interfering: in papermaking process, water often contains metal ions such as calcium, magnesium, iron, etc. These ions will interfere with the performance of papermaking chemicals. dtpmpa combines with these metal ions through chelating, preventing them from reacting with other chemicals in the pulp and ensuring the smooth progress of papermaking process.

Improvement of paper quality: Chelating metal ions avoids the negative effects of metal ions on fibers, thus improving the strength and whiteness of paper.

Scale inhibitor:

Prevents scaling: In paper making water system, if the water hardness is high, precipitates such as calcium carbonate and calcium sulfate are easily formed, leading to scaling of equipment.DTPMPA can prevent calcium and magnesium ions from precipitating by complexing them, protecting equipment and pipelines, and reducing maintenance costs.

Improve heat exchange efficiency: By preventing scaling, DTPMPA is able to maintain the efficiency of heat exchangers, saving energy and improving productivity.

Anti-corrosion agent:

Extend equipment life: DTPMPA has good anti-corrosion properties, preventing corrosion of piping and equipment, extending their life and reducing downtime and maintenance costs.

Overall, the application of DTPMPA in the paper industry not only improves the quality of paper, but also effectively reduces production costs and improves production efficiency.