Pulp and Paper

In the pulp and paper industry, chelates find various applications. Here are a few examples:

Metal Ion Control: Chelating agents are used to control the levels of metal ions in the pulp and papermaking processes. Metal ions present in the raw materials or process water can have detrimental effects on the paper quality and process efficiency. Chelates can sequester these metal ions, preventing their interference with processes such as bleaching, pulp delignification, and enzymatic treatments.

Bleaching Processes: Chelating agents play a significant role in bleaching processes, particularly in chlorine-based bleaching systems. They help to control and remove metal ions that catalyze the degradation of bleaching agents or cause unwanted reactions. Chelates improve the effectiveness of bleaching agents and contribute to the brightness and quality of the final paper product.

Pitch and Stickies Control: Pitch and stickies refer to organic contaminants such as resins, adhesives, and waxes that can cause operational issues and quality defects in the papermaking process. Chelating agents are used to control and remove these contaminants by chelating metal ions present in them, thereby improving process efficiency and paper quality.

Water Treatment: Chelating agents are utilized in water treatment processes in the pulp and paper industry. They can chelate metal ions present in the process water, preventing their detrimental effects on equipment and processes. Chelates help to improve the efficiency of water treatment and minimize scaling and corrosion issues.