Yunnan Sanhuan Sinochem Fertilizer has obtained a patent for a crystalline ammonium dihydrogen phosphate neutralization system

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Yunnan Sanhuan Sinochem Fertilizer has obtained a patent for a crystalline ammonium dihydrogen phosphate neutralization system, which enables a more complete and thorough reaction between ammonia and phosphoric acid. According to a report from Finance World on April 4, 2025, the Intellectual Property Office records show that Yunnan Sanhuan Sinochem Fertilizer Co., Ltd. holds a patent titled “A Crystalline Ammonium Dihydrogen Phosphate Neutralization System”; the approval number for this patent is CN 222709670 U, with the application date being June 2024. The patent abstract indicates that this utility model relates to the field of chemical production technology. Specifically, it provides a crystalline ammonium dihydrogen phosphate neutralization system, which includes a primary neutralization tower and a secondary neutralization tower connected in sequence. A primary reactor is arranged within the primary neutralization tower, and a first discharge pipe is provided at the discharge end of the primary reactor ； The first discharge pipe is connected to the secondary neutralization tower ； The secondary neutralization tower includes a secondary reactor, a tertiary reactor, and a circulation pump ； The secondary reactor is located within the secondary neutralization tower, and it is connected to the first discharge pipe ； A second discharge pipe is installed at the bottom of the secondary neutralization tower, and a discharge branch pipe is connected to one side of the second discharge pipe ； The circulation pump is installed at the discharge end of the second discharge pipe; it is connected to the third discharge pipe, whose discharge end is in connection with the secondary neutralization tower ； One side of the third discharge pipe is connected to a three-stage reactor for transporting liquid nitrogen, which enables a more complete and thorough reaction between ammonia and phosphoric acid, as well as ensures a more stable and reliable installation and connection among the various components of the neutralization system.