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US 2022/0159964 A1Published application
Process for preparation of copper compounds
AssigneeUpl Ltd
InventorsFrederic Ferrier, Philippe Cavasse, Marc Pillot
Life of this patent
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Abstract
The present invention relates to a process for preparation of copper fungicide compounds. More particularly, the present invention relates to a continuous process for production of tribasic copper sulphate (TBCS).
Claims24
A process for the preparation of a copper fungicide, said process comprising reducing the pH of a copper fungicide precursor in the absence of metallic copper.
A process for preparing a copper fungicide comprising:
- (a) reacting metallic copper with copper tetraamine complex to obtain a diamine copper complex;
- (b) oxidizing the diamine copper complex to obtain the copper fungicide precursor;
- and
- (c) modifying the pH of the copper fungicide precursor in the absence of metallic copper to form the copper fungicide.
1 more element
A copper fungicide having a D50 particle size between 3 to about 20 micron.
Dependencies are inferred from the claim text.