94317-64-3Relevant articles and documents
Urea-based blend composition and method for the manufacture thereof
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, (2021/07/29)
The invention relates to a solid, particulate, urea-based blend composition comprising a urea-based compound in particulate form, one or more components in particulate form, selected from the group of nitrates, phosphates, sulphates and chlorides, and a urease inhibitor of the type phosphoric triamide, in particular N-(n-butyl) thiophosphoric triamide (nBTPT), wherein the urea-based blend composition is further characterized in that it comprises one or more reactive alkaline or alkaline-forming inorganic or organic compounds. The composition according to the invention has been stabilized against the degradation of a urease inhibitor of the type phosphoric triamide, in particular N-(n-butyl) thiophosphoric triamide (nBTPT). The invention further relates to a method for the manufacture of the claimed solid, particulate, urea-based blend composition.
A continuous reaction synthesis N - alkyl thio phosphoric triamide
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Paragraph 0033; 0035; 0036; 0037; 0045; 0048; 0050, (2017/08/25)
The invention discloses a method for synthesizing N-alkylthiophosphoryl triamide through a continuous reaction. The method comprises the following steps: 1, mixing thiophosphoryl chloride with an organic solvent, pre-cooling the obtained mixture in a heat exchanger to -5-0DEG C, mixing the material with an aminated compound pre-cooled to -5-0DEG C, and reacting the obtained mixture in a micro-reactor to obtain N-alkylthiophosphoryl dichloride at the outlet of the reactor; and 2, allowing N-alkylthiophosphoryl dichloride to directly enter an ammoniation reactor, carrying out an ammoniation reaction on N-alkylthiophosphoryl dichloride and ammonia gas, and post-processing after the ammoniation reaction is completed to obtain N-alkylthiophosphoryl triamide. N-alkylthiophosphoryl triamide is synthesized through a micro-reaction technology with high mass transfer and heat transfer efficiency, so conversion of intermittence to continuity is realized, the operating step is simplified, and the reaction yield is improved.
A N-hydrocarbyl thiophosphoro phosphoric triamide method for the production of (by machine translation)
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Paragraph 0038; 0041, (2016/10/31)
This invention involves a kind of N-hydrocarbyl thiophosphoro phosphoric triamide method of production, comprising the following steps : (1) compound in the organic solvent and the presence of acid, trichloro with hydrocarbyl reaction of primary amine, acid, generating hydrocarbyl amidogen phosphinylidyne two chlorine ; (2) step (1) after filtration of a reaction liquid in the reaction with ammonia, generating N-hydrocarbyl thiophosphoro phosphoric triamide. Step (1) the preferred composite acid-binding agent and the mixture of the triethylamine. Said step (2) in the reaction process of participating in the reaction-hydrocarbyl N all phosphorothioic dichlorides N-hydrocarbyl of phosphorothioic dichlorides of the mass fraction of 1% - 10% of the returning. The production method of the invention can be intermittent or continuous, mild reaction conditions, there are few by-products, the yield is good, high purity, is easy to separate and purify, is suitable for industrial production. (by machine translation)
