Application of Ozone Decomposition Catalysts in Chlorine - free Paper Bleaching

In an era of increasing environmental awareness, the papermaking industry has an ever - more - urgent need for green production technologies. Chlorine - free paper bleaching technology, as an environmentally friendly process, has gradually become the focus of the industry, and ozone decomposition catalysts play a crucial role in it.

Traditional chlorine - containing paper bleaching methods, such as the use of chlorine gas or chlorine - containing compounds, although they have significant bleaching effects, generate a large amount of chlorine - containing wastewater. The organic chlorides in it are toxic and bio - accumulative, causing serious pollution to the environment. Chlorine - free paper bleaching technology aims to abandon chlorine - containing reagents and achieve paper bleaching in a more environmentally friendly way. Ozone is an ideal substitute.

Ozone has strong oxidizing properties and can destroy the structure of chromophores in paper, thus achieving the purpose of bleaching. However, ozone has limited solubility in water and poor stability. If unreacted ozone is directly discharged, it not only causes waste of resources but may also have a negative impact on the environment. This is where ozone decomposition catalysts come into play.

MINSTRONG has invested a large amount of resources in the research of ozone decomposition catalysts. The company has established a professional research team composed of experts from multiple fields such as materials science and chemical engineering. They deeply study the reaction mechanism of ozone decomposition and are committed to developing more efficient catalysts. Through continuous experiments and explorations, the team has discovered a special combination of active ingredients and optimized the distribution of active sites on the catalyst surface. This enables the catalysts of MINSTRONG to react more rapidly with ozone molecules, greatly reducing the activation energy of ozone decomposition and accelerating the decomposition of ozone into oxygen and reactive oxygen species.

During the chlorine - free paper bleaching process, these reactive oxygen species can react more effectively with pigments and impurities in the paper, improving the bleaching efficiency. On the one hand, it significantly increases the utilization rate of ozone, reduces the amount of ozone used, and lowers the production cost. On the other hand, it reduces the emission of unreacted ozone and decreases the potential harm to the environment. At the same time, due to the efficient action of reactive oxygen species, paper bleaching can be achieved under relatively mild conditions, which helps to protect the strength and performance of paper fibers and improve the paper quality.

At present, however, the widespread application of this technology still faces some challenges. For example, the high cost of catalysts limits their large - scale promotion; the stability and durability of some catalysts need to be improved, affecting their performance in actual production; in addition, the fiber structures and chemical compositions of different types of paper vary, posing higher requirements for the adaptability of catalysts.

Looking to the future, with the continuous development of materials science and catalytic technology, it is believed that MINSTRONG will develop more efficient, more economical, and more stable ozone decomposition catalysts. This will further promote the development of chlorine - free paper bleaching technology, enable the papermaking industry to move towards a more green and sustainable direction, and make greater contributions to environmental protection and resource conservation.