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1. (WO2013159497) PARAQUAT WATER DISPERSIBLE GRANULES AND PREPARATION METHOD THEREOF

Pub. No.:    WO/2013/159497    International Application No.:    PCT/CN2012/083367
Publication Date: Fri Nov 01 00:59:59 CET 2013 International Filing Date: Wed Oct 24 01:59:59 CEST 2012
IPC: A01N 43/40
A01N 25/14
A01N 25/30
A01P 13/00
Applicants: NANJING GAOZHENG AGROCHEMICAL CO., LTD
南京高正农用化工有限公司
WANG, Maoqin
汪茂勤
WANG, Shenjie
汪莘杰
MI, Chunjin
米春金
Inventors: WANG, Maoqin
汪茂勤
WANG, Shenjie
汪莘杰
MI, Chunjin
米春金
Title: PARAQUAT WATER DISPERSIBLE GRANULES AND PREPARATION METHOD THEREOF
Abstract:
Disclosed are a paraquat water dispersible granules and a preparation method thereof. The paraquat water dispersible granules comprise 70%-95% by mass of paraquat positive ions, preferably 80%-95% by mass of paraquat positive ions. The preparation method of the paraquat water dispersible granules comprises: mixing a paraquat probe drug, a dispersible wetting agent, a filling agent, a binding agent, and other auxiliaries, and mixing the mixture with water to obtain a suspension or an aqueous solution; and subjecting the suspension or the aqueous solution to spray drying, pelleting, gas-solid separation, and packaging, so as to obtain the paraquat water dispersible granule product. The present invention makes paraquat into high-content water dispersible granules, which effectively reduce the packaging cost and transportation cost; therefore, environmental protection performance and safety of the paraquat granules in each link from production to application are improved, and the paraquat water dispersible granules have more significant control effect on weeds as compared with the conventional paraquat water aqua.