Stable urease inhibitor as well as preparation method and application thereof

• Main Authors: YANG WEIHONG, LI XINZHU, LI ZHENGRU, CHANG YUYAN
• Format: Patent
• Language: Chinese; English
• Published: 04.10.2022
• Subjects: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; CHEMISTRY; FERTILISERS; FERTILISERS CHARACTERISED BY THEIR FORM; MANUFACTURE THEREOF; METALLURGY; MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENTSUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVINGA SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES,SOIL-CONDITIONERS, WETTING AGENTS; NITROGENOUS FERTILISERS; ORGANIC CHEMISTRY

The invention relates to a stable urease inhibitor as well as a preparation method and application thereof, and belongs to the field of fertilizer synergists. The stable urease inhibitor benzylamine thiophosphoric triamide (NLT) is prepared by taking benzylamine and thiophosphoric chloride as initial raw materials. The urease inhibitor is stable to water and temperature, is not easy to decompose, has a good urea decomposition inhibition effect, is applied to preparation of synergistic urea and synergistic fertilizer, and has the advantages of short processing flow, good stability, high utilization rate, convenience in use, low cost, easiness in popularization and the like. 本发明涉及一种稳定脲酶抑制剂及其制备方法与应用，属于肥料增效剂领域。本发明以苄胺和三氯硫磷为起始原料，制备稳定性脲酶抑制剂苄胺基硫代磷酰三胺(NLT)。该脲酶抑制剂对水和温度稳定，不易分解，且具有良好的抑制尿素分解效果，将本发明脲酶抑制剂应用于增效尿素、增效肥料的制备，具有加工流程短、稳定性好、利用率高、使用方便，成本低、易于推广等优点。