Your current location:HOME >opinions >Tech company finds profit in coal waste 正文
TIME:2024-05-21 17:58:51 Source: Internet compilationEdit:opinions
A technology company in Shanxi province is pioneering the transformation of coal waste into valuable
A technology company in Shanxi province is pioneering the transformation of coal waste into valuable industrial materials, offering a solution to a mounting environmental challenge.
Shanxi Bright Kaolin Technology Corp, located in a major coal-producing region, has developed a technique to manufacture kaolin, a white clay mineral, from coal gangue — a byproduct of coal mining that creates environmental problems.
Coal gangue not only occupies land but also pollutes the air through sulfur emissions and poses a risk of spontaneous combustion. In Shanxi alone, coal gangue storage has reached 900 million metric tons, with its output accounting for 18 percent of coal production.
"Coal gangue is mainly utilized for low-value purposes in China," said Wu Qiang, a national political adviser and professor at the China University of Mining and Technology (Beijing). "Despite a national utilization rate exceeding 70 percent, it's primarily used in building materials, combustion and road paving."
The new technology offers a solution, transforming waste into valuable products.
"We've achieved breakthroughs in manufacturing coating kaolin and high-performance coal-based kaolin with exceptional porosity from coal gangue," said Li Yunxia, deputy director of the company's technology center. "Our products boast a large surface area, high oil absorption and strong coverage, meeting international standards."
Through a multi-step process including crushing, grinding, drying and calcination, the company produces ultra-fine kaolin particles exceeding 8,000 mesh — 100 times finer than flour. These particles possess valuable properties like wear resistance, moldability, fire resistance and electrical insulation, making them ideal for various industries such as coatings, aerospace, ceramics and wiring.
Shanxi Bright Kaolin consumes 600,000 tons of coal gangue annually, producing 500,000 tons of ultra-fine kaolin exported to over 40 countries.
"The strong export performance is a testament to the high quality of our coating products," said Yan Hongguang, a senior engineer at a partnering coating company. "While kaolin makes up only 5 to 10 percent of raw materials, its quality significantly impacts the final product."
Recognizing the company's innovation, Shanxi designated the comprehensive utilization industry chain for abandoned resources as a key provincial chain in 2023. Shanxi Bright Kaolin was chosen to lead resource integration and industrial development within this chain.
"We plan to increase investment in research and development, coordinate the development of upstream and downstream sectors, and upgrade the entire industry chain to contribute to the province's high-quality development," said company head Luo Xunqiao.
‘The Blue Angels,’ filmed for IMAX, puts viewers in the ‘box’ with the elite flying squad2024-05-21 17:50
Queen Camilla, Princess Anne and Sarah Ferguson all don traditional spring shade2024-05-21 17:41
Core blimey: French apple rose tart2024-05-21 17:13
'The more, the merrier!' Mother of Princess Beatrice's stepson says she is still close with her ex2024-05-21 17:07
Target to lower prices on basic goods in response to inflation2024-05-21 16:28
Core blimey: French apple rose tart2024-05-21 16:25
My toddler saved my life after I had an epileptic seizure and fell in the bath2024-05-21 16:08
Copa 71 review: An enlightening documentary about REAL girl power, writes BRIAN VINER2024-05-21 15:39
A warrant for Netanyahu’s arrest was requested. But no decision was made about whether to issue it2024-05-21 15:39
King Willem2024-05-21 15:24
Kristin Cavallari, 37, ignores critics of her age2024-05-21 17:38
US targets Russia with hundreds of sanctions over Ukraine war, Navalny death2024-05-21 17:23
The name's Johnson... Taylor2024-05-21 17:14
ESTHER RANTZEN: I asked Mail readers to help me plan my funeral. Your choices2024-05-21 16:46
Candice Swanepoel stuns in a form2024-05-21 16:31
Should you put 'magic' mushrooms in your coffee?2024-05-21 16:21
King Willem2024-05-21 16:02
Dog severely burned and abandoned by owner in San Bernardino2024-05-21 15:56
Student fatally shot, suspect detained at Georgia's Kennesaw State University2024-05-21 15:28
From being bitten by a flesh2024-05-21 15:25