• 专利标题:   Preparing wastewater containing sulfur cyanide useful for treating wastewater containing sulfur cyanide, comprises e.g. dissolving ferrous sulfate heptahydrate in deionized water, adding graphene and deionized water, placing the mixed solution under microwave condition, separating and grinding.
  • 专利号:   CN115178266-A
  • 发明人:   LUO M, LI P, YAO Q, LU Q, YUAN A, WEI Q, ZHAO S, ZHANG J, YANG Y, HUANG H, ZHANG S, FENG Y, LIU Y, ZENG H, ZHANG W, WEI A, LUO X, DAI C, LAI X, WU Y, LUO L
  • 专利权人:   GUANGXI IRON STEEL GROUP CO LTD, LIUZHOU IRON STEEL CO LTD
  • 国际专利分类:   B01J023/745, B01J035/10, B01J037/34, C02F001/30, C02F001/72, C02F101/10, C02F101/16
  • 专利详细信息:   CN115178266-A 14 Oct 2022 B01J-023/745 202203 Chinese
  • 申请详细信息:   CN115178266-A CN10825374 13 Jul 2022
  • 优先权号:   CN10825374

▎ 摘  要

NOVELTY - Preparing wastewater containing sulfur cyanide, comprises (i) dissolving ferrous sulfate heptahydrate in deionized water to obtain 30-60 g/l ferrous sulfate aqueous solution, (ii) adding 0.01-0.05 pts. wt. graphene and 100-150 pts. wt. deionized water to obtain graphene solution, (iii) adding ferrous sulfate aqueous solution into graphene solution for mixing in which volume ratio between ferrous sulfate aqueous solution and graphene solution is 1:4-1:10, after magnetic stirring for 0.5-3 hours, placing the mixed solution under microwave condition for 20-40 minutes, then cooling to below 60 ℃, and (iv) separating and drying the cooled solution, and then grinding to obtain final product. USE - The method is useful for treating wastewater containing sulfur cyanide (claimed). ADVANTAGE - The method reduces reaction temperature, shortens the processing time and improves processing effect. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for treating wastewater containing sulfur cyanide, comprising (a) adding certain amount of hydrogen peroxide and ferrous ion/graphene (Fe2+/GO) composite catalyst in waste water tank containing sulfur cyanide, Fe2+/GO composite catalyst adopts the method for preparing and treating sulfur-cyanide containing cyanide wastewater catalyst, and (b) adopting wastewater lifting pump to send the wastewater containing sulfur cyanide into microwave reactor, setting microwave condition to process the wastewater containing sulfur cyanide and removing the sulfur cyanide of wastewater.