With the advancement of technology, many electronic products require the use of liquid crystal displays, resulting in an annual increase in the number of polarizers produced domestically. This has led to the rapid emergence of problems such as the disposal of waste polarizers, offcuts, defective products and recycled materials.
In light of this, Hongyuan Industrial uses water ions combined with electromagnetic wave induction heat treatment to transform discarded polarizers, recycling them into usable resources. It also evaluates the reuse of the solid phase residue (residual carbon) to derive fuels and dye adsorbents. This patented technology was recently exhibited at the International Semiconductor Exhibition, allowing more companies to move towards new technologies for energy conservation, carbon reduction and green energy.
Hongyuan Industrial General Manager Xiao Ruichang pointed out that Taiwan's current primary waste disposal method is incineration. However, due to public protests, incinerators have refused to accept waste polarizers due to the iodine ions contained in polarizers, which produce purple smoke when burned. Experimental results show that after treatment with water ionization equipment, the solid phase residue of the polarizers in Example A can be used as a derivative fuel with a calorific value higher than that of anthracite (7,000 kcal/kg); and the carbon residue in Example B can be used as a dye adsorbent.
Taiwan's polarizer production accounts for over 15% of the global market. However, polarizer waste is very bulky, requiring significant storage space. With limited space, this bulky waste not only takes up space but also creates unproductive waste. To address this dilemma for polarizer manufacturers, the Ministry of Economic Affairs' Technology Division has developed a highly efficient recycling technology for waste polarizers, helping companies achieve the benefits of a circular economy while maintaining a cost-effective approach.
Xiao Ruichang stated that the company obtained a US invention patent in November and plans to officially launch its water ion organic solvent machine in March of next year (2022). All system equipment is modular and customized, and the design begins after thorough discussion and collection of waste treatment information to perfectly meet customer needs. Because of the modular design, it is easy to expand the capacity, from 2.5TPD to 100TPD, and the basic performance of large and small models can meet the required standards.
Source: China Times News (https://www.chinatimes.com/newspapers/20220104000181-260210?chdtv)
