Chemical maker in Xifeng advances smart, green upgrades

Guiyang Kailin Phosphate Fertilizer Co, located in the Chemical Industrial Park of Xiaozhaiba town in Xifeng county, has continued to promote intelligent transformation and green upgrading in recent years.

The production line of the Guiyang Kailin Phosphate Fertilizer Co. [Photo/xifeng.gov.cn]

The company has implemented a series of related projects, including upgrades to its wet-process phosphoric acid system and ultra-low emission treatment for sulfuric acid tail gas.

The company's wet-process phosphoric acid purification technology has now been upgraded to its fifth generation. Product quality has steadily reached food additive-grade standards, while efforts are underway to achieve breakthroughs toward electronic-grade phosphoric acid, promoting the transition of phosphorus resources toward deeper and higher-value processing.

The company displays some of its samples. [Photo/xifeng.gov.cn]

Within the industrial park, the company's 200,000-metric-ton-per-year PPA (purified wet-process phosphoric acid) capacity expansion project has reached full production standards and capacity. The project represents a bold move forward in the company's transformation from a traditional fertilizer producer to a high-end fine phosphorus chemical manufacturer.

At present, the production line is running at full capacity, continuously producing high-quality purified phosphoric acid products. "Our wet-process phosphoric acid purification technology is still being upgraded," said Wang Xianwei, the project leader. "Through continuous technical efforts, our team has achieved product quality reaching electronic-grade phosphoric acid standards under laboratory conditions."