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中国化工公司浙江新安的在萃取中使用有机溶剂制备固体草甘膦铵盐的专利已在美国获准。这项专利申请已在美国审查3年,此前已在中国、南非和越南获准。公司指出,高浓度的草甘膦铵盐是在草甘膦市场中一个相对近代的发展。
Patents on the preparation of solid glyphosate ammonium salt by Chinese chemical company Zhejiang Xin’an using organic solvents in extraction have been approved in the United States. The patent application has been reviewed in the United States for three years, previously approved in China, South Africa and Vietnam. The company noted that high concentrations of ammonium glyphosate are a relatively recent development in the glyphosate market.