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US 8,133,932 B2Granted
Method for producing metal particles, metal particles produced thereby, and the use thereof
AssigneeBayer Technology Service GmbH
InventorsJohan Kijlstra, Peter H. Weuta, Dirk Storch, Daniel Duff, Werner Hoheisel
Life of this patent
Estimating the term…
Abstract
Process for producing metal particle sols having a metal particle content of ≧1 g/l, comprising the steps of a) reacting a metal salt solution with a solution containing hydroxide ions b) reacting the solution obtained from step a) with a reducing agent, wherein at least one of the solutions in step a) comprises a dispersing assistant, metal particles produced by the process and the use thereof.
Claims8
Process for producing silver metal particle sols having a metal particle content of ≧1 g/l, comprising the steps of
- a) reacting a silver metal salt solution having a silver metal salt concentration of ≧0.1 to ≦0.5 mol/l with a solution containing hydroxide ions at a concentration of ≧0.1 to ≦0.5 mol/l, thereby forming silver metal oxides or hydrates thereof, silver metal hydroxides or hydrates thereof, mixed silver metal oxide hydroxides or hydrates thereof, or any combination thereof,
- b) reacting the solution obtained from step a) with a reducing agent,
- wherein at least one of the solutions in step a) comprises a dispersing assistant and whereby both steps a) and b) are performed continuously in a microreactor.
Dependencies are inferred from the claim text.