Japan, Sept. 16 -- NIPPON SODA CO LTD has got intellectual property rights for 'METHOD OF TREATING CYAN-CONTAINING EFFLUENT.' Other related details are as follows:
Application Number: JP,2023-057607
Category (FI): C02F1/58@N
Stage: PROBLEM TO BE SOLVED: To provide a treatment method capable of converting cyan-containing effluent to a safer treated liquid by decomposing cyan, not by adsorbing nor by filtering cyan, without using a toxic/deleterious substance, among methods of treating cyan-containing effluent including a toxic cyan component generated when a small amount of sodium cyanide or potassium cyanide is used in an experimentation facility, an analysis facility or the like.SOLUTION: The method of treating cyan-containing effluent, comprises the steps of: adding reducing sugar to cyan-containing effluent, and reacting the reducing sugar and cyan present in the effluent under the condition of pH 7 to 11 to produce cyanohydrin; subsequently adding an acid to the effluent to hydrolyze the cyanohydrin under an acidic condition; and subsequently neutralizing the effluent.SELECTED DRAWING: None (Grant)
Filing Date: March 31, 2023
Publication Date: Oct. 15, 2024
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
