Location History:
- Taoyuan County, TW (2009 - 2012)
- Pingjhen, TW (2013)
Company Filing History:
2 out of 154 
1 out of 75 Years Active: 2009-2013
Title: Ching-Tu Chang: Innovator in Waste Acid Stabilization
Introduction
Ching-Tu Chang is a notable inventor based in Taoyuan County, Taiwan. He has made significant contributions to the field of waste management through his innovative methods for solidifying and stabilizing waste acids. With a total of three patents to his name, Chang's work addresses critical environmental challenges.
Latest Patents
One of Ching-Tu Chang's latest patents is a method for solidifying and stabilizing waste acid. This invention involves several steps, including condensing waste acid containing phosphoric acid to reduce its volume. The condensed waste acid is then mixed with waste acid containing fluoroboric acid to achieve solidification and stabilization. The pH of the mixed acid is adjusted by adding barium hydroxide as a neutralizer. The efficiency of solidifying waste acid can be enhanced by partially granulating and indirectly adding a solidifying agent. This method also prevents intensely exothermic reactions that can occur when solidifying agents are added. Furthermore, the process is controlled at a temperature of 30 to 45°C to improve the polymerization of the mixed waste acid, thereby increasing the efficiency of solidification.
Career Highlights
Ching-Tu Chang has worked with several esteemed organizations, including the Atomic Energy Council, the Institute of Nuclear Energy Research, and the Institute of Nuclear Energy Research. His experience in these institutions has allowed him to develop and refine his innovative methods for waste acid management.
Collaborations
Throughout his career, Chang has collaborated with notable colleagues, including Ching-Tsuen Huang and Chao-Yuh Chen. These collaborations have contributed to the advancement of his research and the successful implementation of his inventions.
Conclusion
Ching-Tu Chang's innovative approaches to waste acid stabilization demonstrate his commitment to environmental sustainability. His patents reflect a deep understanding of chemical processes and a dedication to improving waste management practices. Chang's work continues to influence the field and offers valuable solutions to pressing environmental issues.