Recycling hydroxylamine-containing stripper solutions
AssigneeBASF SE
InventorsOtto Watzenberger, Heiner Schelling
Life of this patent
Estimating the term…
Abstract
A process for working up hydroxylamine-containing solutions as obtained in particular in the electronics industry during the cleaning of electronic components is described. According to the invention, the hydroxylamine is stripped from the wastewater with steam. The products obtained are aqueous hydroxylamine and an aqueous solution of the amines. Both product streams can be purified in further process steps to give a saleable product.
Claims6
A process for working up hydroxylamine-containing solutions, in particular from the electronics industry, wherein the hydroxylamine is stripped from the hydroxylamine-containing solution with steam.
Dependencies are inferred from the claim text.