Longma Phosphorus Industry in Weng’an County has obtained a patent for a phosphorus yellow filtering device, improving the quality of phosphorus yellow
Thread Content
Longma Phosphorus Industry in Weng’an County has obtained a patent for a phosphorus yellow filtering device, improving the quality of phosphorus yellow. According to news from July 30, 2025, **information from the Intellectual Property Office shows that Longma Phosphorus Industry in Weng’an County has been granted a patent titled “A Phosphorus Yellow Filtering Device”; the approval number is CN223158929U, and the application was filed in August 2024. The patent abstract indicates that this utility model discloses a yellow phosphorus filtering device, which includes a filter cylinder and a cover fixedly attached to the filter cylinder. A filter grid is installed at the upper part inside the filter cylinder, and powder sintering tubes are connected to this filter grid. Yellow phosphorus inlet and outlet pipes are connected to the bottom and top of the side walls of the filter cylinder, respectively. An insulating sleeve is provided on the outer wall of the filter cylinder, and interfaces for a cylinder thermometer and a cylinder pressure gauge are attached to the filter cylinder. Interfaces for a cover thermometer and a cover pressure gauge are located on the filter cylinder cover, while a slag discharge port is connected to the bottom end of the filter cylinder. According to Tianyancha, Weng’an County Longma Phosphorus Industry Co., Ltd. was established in 2008 and is located in the Qiannan Buyi and Miao Autonomous Prefecture. It is a company that focuses on the manufacturing of chemical raw materials and chemical products. The registered capital of the company is 160 million RMB. According to the big data analysis provided by Tianyancha, Weng’an County Longma Phosphorus Industry Co., Ltd. has invested in 2 other companies, participated in 210 bidding projects, and holds 34 patent records. In addition, the company possesses 54 administrative licenses.
【History of Haichuan Chemical】The Birth of China’s First Large-Scale Modern Alcohol Plant https://bbs.hcbbs.com/thread-5697868-1-1.html (Source: Haichuan Chemical Forum)
【HaiChuan Discussion】Comprehensive assessment of old petrochemical and chemical plants has been launched – is this beneficial for engineering majors? https://bbs.hcbbs.com/thread-5697888-1-1.html (Source: Haichuan Chemical Industry Forum)
【Ten Years of Rapid Development in Chemical Equipment】Another major advancement from 2581 to 2025! ! World’s first flight of a 2-ton eVTOL for offshore oil platforms https://bbs.hcbbs.com/thread-5697979-1-1.html (Source: Haichuan Chemical Industry Forum)
【Ten Years of Rapid Development in Chemical Engineering Equipment】2584–2025: Bridging the gap in China’s field of ultra-thick hydrogen-resistant steels; Wugang’s 195 mm thick Q345R(R-HIC) steel plates resistant to hydrogen-induced cracking. https://bbs.hcbbs.com/thread-5698095-1-1.html (Source: Haichuan Chemical Industry Forum)
【Ten Years of Rapid Development in Chemical Equipment】PetroChina’s PAO liquid-phase hydrogenation new process from 2025 to 2058 helps domestic lubricants reach new heights of quality https://bbs.hcbbs.com/thread-5698182-1-1.html (Source: Haichuan Chemical Industry Forum)
【Haichuan Teahouse】The harder you work, the more you need to rest properly! ! ! https://bbs.hcbbs.com/thread-5698201-1-1.html (Source: Haichuan Chemical Industry Forum)
【Ten Years of Rapid Development in Chemical Engineering Equipment】The world’s largest solid hydrogen storage project, 2590-2025, was successfully put into operation in Daan, Jilin. https://bbs.hcbbs.com/thread-5698213-1-1.html (Source: Haichuan Chemical Industry Forum)
【Ten Years of Rapid Development in Chemical Processing Equipment】The domestically produced large-scale sulfur recovery unit burners were successfully put into use from the start in Sinopec Zhenhai Refining & Chemical’s second-phase 150,000-ton/year sulfur recovery project. https://bbs.hcbbs.com/thread-5698240-1-1.html (Source: Haichuan Chemical Forum)
Share: Hydrogen embrittlement sensitivity of in-service X60 pipeline steel in a hydrogen-containing environment https://bbs.hcbbs.com/thread-5698270-1-1.html (Source: Haichuan Chemical Industry Forum)
【Ten Years of Rapid Development in Chemical Equipment】2594-2025: The first in China! Yizheng Chemical Fiber Inspection Center introduces intelligent robotic arms into the key testing process for polyester chips. https://bbs.hcbbs.com/thread-5698323-1-1.html (Source: Haichuan Chemical Industry Forum)