GR-9000 Bleach control agent

◼PRODUCT DESCRIPTION

Model GR-9000:

This product is a silicon-free bleaching agent with strong metal ion ch elation, preventing hydrogen peroxide waste by controlling its decomposition. It ensures stable and efficient bleaching while protecting metal equipment from corrosion. Suitable for chemical pulp and  ink pulp bleaching, it reduces hydrogen peroxide usage and system scaling.

◼Features

• Highly efficient and stable, cost-saving.

Strongly chelating metal ions allows for precise control of hydrogen peroxide decomposition, significantly improving utilization rates and effectively reducing hydrogen peroxide dosage, directly lowering bleaching costs.

• Silicone-free formula eliminates scaling.

The innovative silicone-free chemical structure fundamentally eliminates the formation of silica scale in equipment and piping, ensuring production continuity and minimizing downtime and cleaning costs.

• Dual protection extends life.

It protects pulp fibers by removing corrosive agents (metal ions) and protects production equipment by forming a film on metal surfaces, providing dual protection for both product and equipment.

• Excellent results and improved quality.

It ensures a stable and uniform bleaching process, effectively improving pulp brightness and maintaining pulp strength, thereby enhancing the quality of the final product.

• Environmentally friendly and smooth operation.

The silicone-free formula reduces chemical residues and cleaning wastewater burden, contributing to a cleaner and more environmentally friendly production process.

◼Typical Applications

This product is designed for hydrogen peroxide bleaching in the following applications:

• Bleaching of chemical pulps, such as kraft pulp and mechanical pulp, in multi-stage or single-stage bleaching.

• Bleaching of deinked pulp: This product is particularly suitable for bleaching and decolorizing recycled fibers such as mixed office waste (MOW) and old newspaper (ONP) in the waste paper recycling process.

◼How does GR-9000's "strong metal ion chelation" specifically reduce hydrogen peroxide usage?

In bleaching systems, trace amounts of metal ions such as Fe²⁺ and Cu²⁺ catalyze the rapid decomposition of hydrogen peroxide (H₂O₂) into water and oxygen. This reaction has no bleaching effect and is the primary cause of ineffective H₂O₂ loss. GR-9000's functional groups form stable complexes with these metal ions, deactivating their catalytic activity. This redirects the decomposition of H₂O₂ toward the effective bleaching reaction pathway, significantly improving H₂O₂ utilization and reducing usage.

◼What are the practical benefits of GR-9000's silicone-free nature compared to traditional silicone-containing bleaches?

Silicon-containing bleaches can form a hard, silica-like scale on the inside of equipment and pipes. This scale is not only difficult to clean, requiring frequent downtime for treatment, but also affects heat transfer efficiency and increases energy consumption. GR-9000's silicone-free nature fundamentally solves the scaling problem, ensuring continuous and stable operation of the production line and reducing maintenance costs and energy consumption.

◼This product claims to "protect metal equipment from corrosion." What is its mechanism?

GR-9000 forms an extremely thin, dense protective film on the surface of metal equipment. This film effectively blocks direct contact between chloride ions, oxygen, and other corrosive media in the bleaching system and the metal surface, significantly inhibiting electrochemical corrosion and extending the service life of the equipment.