Abstract: The present application discloses a multi-region plasma shell-and-tube reactor comprising a shell body. At least two reaction regions are provided inside the shell body, and a horizontal separation panel is provided between any two adjacent reaction regions, used to separate the two and passing through the tubes. A central hole is provided in the center of any horizontal separation panel, and at least one auxiliary hole distributed around the central axis of the central hole is provided in any horizontal separation panel so as to cooperate with the central hole to cause a vortex state to be formed in a reaction region.

Abstract: The present invention provides a system for continuously producing diethyl methylphosphonite, comprising a rapid mixing reactor and a material circulation subsystem. An inlet of the rapid mixing reactor is provided with a rapid mixing component; the rapid mixing component comprises a first liquid inlet and a second liquid inlet: the second liquid inlet is used for feeding a material containing methylphosphonous dichloride; the material circulation subsystem comprises a filter, a material distribution unit, an acid binding agent premixer and a heat exchanger, which are connected in sequence; the filter is also provided with a solid waste outlet; the material distribution unit is also provided with a diethyl methylphosphonite outlet; the acid binding agent premixer is also provided with a reaction raw material inlet and an acid binding agent inlet; an inlet of the filter is connected to an outlet of the rapid mixing reactor; and an outlet of the heat exchanger is connected to the first liquid inlet.

Abstract: The present application discloses a multi-region plasma shell-and-tube reactor comprising a shell body. At least two reaction regions are provided inside the shell body, and a horizontal separation panel is provided between any two adjacent reaction regions, used to separate the two and passing through the tubes. A central hole is provided in the center of any horizontal separation panel, and at least one auxiliary hole distributed around the central axis of the central hole is provided in any horizontal separation panel so as to cooperate with the central hole to cause a vortex state to be formed in a reaction region.

Abstract: This invention provides the herbicidal active ingredient, a dimethylamine salt crystal of N-phosphonomethyl glycine (glyphosate), its preparation process and a solid formulation containing the crystalline dimethylamine salt of glyphosate as well as its application. Said preparation process comprises adding glyphosate and a suitable amount of solvent into a conventional reactor and introducing a dimethylamine gas for reaction, wherein the reaction temperature is controlled between 5 and 90° C. After the completion of the reaction, the temperature is reduced slowly to a certain value, a crystalline dimethylamine salt of glyphosate is precipitated (or precipitated after a crystal seed is added).

Abstract: This invention provides the herbicidal active ingredient, a dimethylamine salt crystal of N-phosphonomethyl glycine (glyphosate), its preparation process and a solid formulation containing the crystalline dimethylamine salt of glyphosate as well as its application. Said preparation process comprises adding glyphosate and a suitable amount of solvent into a conventional reactor and introducing a dimethylamine gas for reaction, wherein the reaction temperature is controlled between 5 and 90° C. After the completion of the reaction, the temperature is reduced slowly to a certain value, a crystalline dimethylamine salt of glyphosate is precipitated (or precipitated after a crystal seed is added).