• 专利标题:   Removing hexavalent chromium from waste water using cyclohexane diamine tetraacetic acid modified magnetic graphene oxide comprises adding cyclohexyldiamine tetracetic acid-modified magnetic graphene oxide into wastewater, and oscillating.
  • 专利号:   CN104724787-A, CN104724787-B
  • 发明人:   HU X, LIU Y, LI T, WANG H, ZHANG M, ZENG G, GUO F, WANG S
  • 专利权人:   UNIV HUNAN
  • 国际专利分类:   B01J020/22, B01J020/30, C02F001/28, C02F001/62
  • 专利详细信息:   CN104724787-A 24 Jun 2015 C02F-001/28 201565 Pages: 8 Chinese
  • 申请详细信息:   CN104724787-A CN10129118 23 Mar 2015
  • 优先权号:   CN10129118

▎ 摘  要

NOVELTY - Removing hexavalent chromium from waste water by using cyclohexane diamine tetraacetic acid modified magnetic graphene oxide comprises adding hexavalent chromium waste water and adjusting pH, adding cyclohexyl diamine tetracetic acid-modified magnetic graphene oxide into wastewater, where the dry weight of the carboxylated magnetic graphite oxide is 0.02-3 g/l based on the wastewater, stirring, oscillating, controlling reaction, and separating the cyclohexane diamine tetra-acetic acid-modified magnetic graphene oxide magnetic from the solution. USE - The method is useful for removing hexavalent chromium from waste water by using cyclohexane diamine tetraacetic acid modified magnetic graphene oxide (claimed). ADVANTAGE - The method: has low cost and high efficiency; is easy to operate, separate and recover hexavalent chromium. DETAILED DESCRIPTION - Removing hexavalent chromium from waste water by using cyclohexane diamine tetraacetic acid modified magnetic graphene oxide comprises adding hexavalent chromium waste water and adjusting pH to 1-10, adding cyclohexyl diamine tetracetic acid-modified magnetic graphene oxide into wastewater, where the dry weight of the carboxylated magnetic graphite oxide is 0.02-3 g/l based on the wastewater, stirring at 100-200 revolutions per minute, oscillating for 0-48 hours, controlling reaction at 10-50 degrees C, and separating the cyclohexane diamine tetra-acetic acid-modified magnetic graphene oxide magnetic from the solution.