Preparation method for copper glyphosate
A glyphosate and copper oxide technology, applied in chemical instruments and methods, compounds of Group 5/15 elements of the periodic table, organic chemistry, etc., can solve problems such as low yield, many by-products, complex preparation process, etc.
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[0018] The invention provides a kind of preparation method of copper glyphosate, comprising:
[0019] Glyphosate and copper-containing compounds are heated and reacted in the solution to obtain copper glyphosate;
[0020] The copper-containing compound is selected from one or more of copper oxide, copper hydroxide and basic copper carbonate.
[0021] In the invention, glyphosate and a copper-containing compound are heated and reacted in a solution to obtain copper glyphosate. The copper-containing compound is selected from one or more of copper oxide, copper hydroxide and basic copper carbonate; preferably selected from one of copper oxide, copper hydroxide and basic copper carbonate; the present invention is for all The source and purity of the glyphosate are not limited, and can be commercially available, preferably glyphosate with a purity of more than 95%; the present invention does not limit the source and purity of the above-mentioned copper oxide, copper hydroxide and ...
Embodiment 1
[0064] Put 250ml of water and 4.5g of 98% black copper oxide into a 500ml glass reactor, stir, heat to 90°C, add 20g of 95.5% glyphosate dry product, continue heating to 95°C, measure pH = 3.5, heat preservation reaction 1 After 1 hour, filter hot to obtain a blue, clear and transparent hot solution. Slowly lower the temperature to 20°C and stir for 24 hours. A large amount of blue solids crystallize. Suction filtration gives 45.1 g of blue wet solids. The filtrate is the mother liquor, which can be used in the next feeding. The blue wet product solid was dried to obtain 20.1 g of blue dry product solid.
[0065] Verify that glyphosate and copper ion are determined in the blue dry product solid according to verification method described in the present invention; Measure glyphosate in mother liquor according to assay method described in the present invention, the result shows, mother liquor contains glyphosate 0.95%, according to the determination method of the present inventi...
Embodiment 2
[0067] Put 250ml of water, 250ml of glyphosate copper mother liquor, and 9.0g of 98% black copper oxide into a 500ml glass reactor, stir, heat to 60°C, add 40g of 97% glyphosate dry product, continue heating to 95°C, and measure pH = 3.5, heat preservation reaction for 1 hour, hot filtration to obtain a blue clear and transparent hot solution. Slowly cool down to 20°C, cool down to 20°C, stir for 24 hours, a large amount of blue solid crystallizes, filter with suction to obtain 101.3g of blue wet solid, the filtrate is the mother liquor, which can be used in the next feeding. The blue wet product solid was dried to obtain 42.8 g of blue dry product solid. Verify that glyphosate and copper ion are determined in the blue dry product solid according to verification method described in the present invention; Measure glyphosate in mother liquor according to assay method described in the present invention, the result shows, mother liquor contains glyphosate 0.88%, according to the ...
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