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    • 1. 发明授权
    • Preparation of solid ammonium glyphosate using organic solvent in extraction
    • 在萃取中使用有机溶剂制备固体草甘膦
    • US07435847B2
    • 2008-10-14
    • US10521649
    • 2003-09-04
    • Wei WangBufan RenShuguang ZhouMin BaoHongchao ZhengBaiqing ZhangJiang Li
    • Wei WangBufan RenShuguang ZhouMin BaoHongchao ZhengBaiqing ZhangJiang Li
    • C07F9/38A01N57/18C07F9/22
    • C07F9/3813
    • A method of preparing ammonium glyphosate suitable for preparation of water-soluble solid ammonium glyphosate formulation by an extraction with organic solvent in a gas-liquid-solid phase system, which comprises adding glyphosate and water into a reactor with a stirer, introducing ammonia to carry out the reaction, an aqueous solution of ammonium glyphosate is formed after the reaction is completed; adding a water-soluble organic solvent such as methanol and/or ethanol and/or methylal to decrease the solubility of the ammonium glyphosate in the system, thereby crystallizing out ammonium glyphosate; and filtering in suction or further oven-drying to obtain the solid ammonium glyphosate. The organic solvent may be recovered and reused by rectifying or distilling, the remainder residue may be returned to the reaction procedure or used in the preparation of the aqueous formulation of ammonium glyphosate.
    • 一种通过气 - 液 - 固相体系中有机溶剂萃取制备适用于制备水溶性固体草甘膦制剂的草甘膦的方法,该方法包括将草甘膦和水加入到具有稳定剂的反应器中,引入氨以携带 反应完成后,形成草甘膦铵水溶液; 加入水溶性有机溶剂如甲醇和/或乙醇和/或甲缩醛,以降低草铵膦在体系中的溶解度,从而结晶出草甘膦铵; 并抽吸过滤或进一步烘干,得到固体草甘膦。 可以回收有机溶剂并通过精馏或蒸馏再利用,其余残余物可以返回到反应程序中或用于制备草甘膦铵的水性制剂。
    • 2. 发明申请
    • Preparation of solid ammonium glyphosate using organic solvent in extraction
    • 在萃取中使用有机溶剂制备固体草甘膦
    • US20050209105A1
    • 2005-09-22
    • US10521649
    • 2003-09-04
    • Wei WangBufan RenShuguang ZhouMin BaoHongchao ZhengBaiqing ZhangJiang Li
    • Wei WangBufan RenShuguang ZhouMin BaoHongchao ZhengBaiqing ZhangJiang Li
    • C07F9/38A01N57/18
    • C07F9/3813
    • A method of preparing ammonium glyphosate suitable for preparation of water-soluble solid ammonium glyphosate formulation by an extraction with organic solvent in a gas-liquid-solid phase system, which comprises adding glyphosate and water into a reactor with a stirer, introducing ammonia to carry out the reaction, an aqueous solution of ammonium glyphosate is formed after the reaction is completed; adding a water-soluble organic solvent such as methanol and/or ethanol and/or methylal to decrease the solubility of the ammonium glyphosate in the system, thereby crystallizing out ammonium glyphosate; and filtering in suction or further oven-drying to obtain the solid ammonium glyphosate. The organic solvent may be recovered and reused by rectifying or distilling, the remainder residue may be returned to the reaction procedure or used in the preparation of the aqueous formulation of ammonium glyphosate.
    • 一种通过气 - 液 - 固相体系中有机溶剂萃取制备适用于制备水溶性固体草甘膦制剂的草甘膦的方法,该方法包括将草甘膦和水加入到具有稳定剂的反应器中,引入氨以携带 反应完成后,形成草甘膦铵水溶液; 加入水溶性有机溶剂如甲醇和/或乙醇和/或甲缩醛,以降低草铵膦在体系中的溶解度,从而结晶出草甘膦铵; 并抽吸过滤或进一步烘干,得到固体草甘膦。 可以回收有机溶剂并通过精馏或蒸馏再利用,其余残余物可以返回到反应程序中或用于制备草甘膦铵的水性制剂。
    • 6. 发明授权
    • Waste disposer
    • US11590544B2
    • 2023-02-28
    • US16993100
    • 2020-08-13
    • Wei Wang
    • Wei Wang
    • B09B3/40B02C18/14B02C23/20C02F11/12F26B1/00F26B3/347C02F11/131
    • A waste disposer comprising a primary dehydrating chamber, a grinding device, a secondary dehydrating chamber, and a storage chamber. The primary dehydrating chamber is adapted to allow waste to be heated therein to partly dehydrate the waste. The primary dehydrating chamber has: a first waste inlet for receiving the waste, a first vapor outlet for exhausting vapor from the waste, a drainage outlet for draining free liquid from the waste, and a first waste outlet for outputting the partly dehydrated waste. The grinding device is adapted to receive the waste from the first waste outlet and grind the waste to reduce the size thereof. The secondary dehydrating chamber is adapted to allow the ground waste to be heated therein to further dehydrate the waste. The secondary dehydrating chamber has a second waste inlet for receiving the ground waste, a second vapor outlet for exhausting vapor from the waste, and a second waste outlet for outputting the further dehydrated waste. The storage chamber is adapted to receive the waste from the second waste outlet and store the waste in the storage chamber.