화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.33, 131-141, January, 2016
DOI10.1016/j.jiec.2015.09.027  Export Citation
Investigation on the selectivity of N-((hydroxyamino)-alkyl) alkylamide surfactants for scheelite/calcite flotation separation
Lanqing Deng1, 2, Gang Zhao1, 3, Hong Zhong1, 3, †, Shuai Wang1, 3, and Guangyi Liu1, 3, †
  • 1College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
  • 2Key Laboratory of Yueyang Chinese Herbal Utilization, Yueyang Vocational Technical College, Yueyang 414000, China
  • 3, China
E-mail:,
In this paper, novel amide-hydroxamic acid surfactants, such as (N-(6-(hydroxyamino)-6-oxohexyl) benzamide (NHOB), N-(6-(hydroxyamino)-6-oxohexyl) octanamide (NHOO), N-(6-(hydroxyamino)-6-oxohexyl) decanamide (NHOD) and N-(4-(hydroxyamino)-4-oxobutyl) octanamide (NOBO), were introduced as flotation collectors for selective separation of scheelite from calicite. The micro-flotation results demonstrated that compared to NHOO, NOBO and NHOB, NHOD exhibited superior collecting power to scheelite and enabled the separation of scheelite and calcite under pH around 10. The calculation results of density functional theory (DFT) and C log P (octanol.water partition coefficient) indicated that NHOD owned excellent hydrophobicity and affinity to scheelite surfaces. The analyses of FTIR spectra, zeta potential and XPS illustrated that besides the electrostatic attraction with Ca cationic species on scheelite surfaces, NHOD might chemisorb onto scheelite by formation of NHOD-W surface complexes, resulting in a superior selectivity to scheelite compared with calcite. NHOD’s unique properties, such as characteristic bond patterns on scheelite surfaces, double hydrophobic groups, and intermolecular hydrogen bonds between neighboring molecules coated on scheelite surfaces, rendered it to be a superior collector for scheelite/calcite flotation separation.
Keywords:Flotation;Scheelite;Calcite;Hydroxamic acid;Amide
  1. Hu YH, Xu ZH, Int. J. Miner. Process., 72(1-4), 87 (2003)
  2. Rao KH, Forssberg KSE, Miner. Eng., 4, 879 (1991)
  3. Hanumantha RK, Antti BM, Forssberg E, Int. J. Miner. Process., 28, 59 (1990)
  4. Kellar JJ, Young CA, Knutson K, Miller JD, J. Colloid Interface Sci., 144, 381 (1991)
  5. Gong WQ, Parentich A, Little LH, Warren LJ, Langmuir, 8, 118 (1992)
  6. Filippova IV, Filippov LO, Duverger A, Severov VV, Miner. Eng., 66-68, 135 (2014)
  7. Somasundaran P, Fuerstenau DW, Int. J. Miner. Process., 32, 1 (1991)
  8. Gao Z, Bai D, Sun W, Cao X, Hu Y, Miner. Eng., 72, 23 (2015)
  9. Martinez-Luevanos A, Uribe-Salas A, Lopez-Valdivieso A, Miner. Eng., 12(8), 919 (1999)
  10. Miller JD, Li M, Wang X, Selective flotation of phosphate minerals with hydroxamate collectors, US Patent, 634, 1697, 2000.
  11. Wang XM, Liu J, Miller JD, J. Colloid Interface Sci., 325(2), 398 (2008)
  12. Assis SM, Montenegro LCM, Peres AEC, Miner. Eng., 9(1), 103 (1996)
  13. Pradip, Rai B, Rao TK, Krishnamurthy S, Vetrivel R, Mielczarski J, Cases JM, J. Colloid Interface Sci., 256(1), 106 (2002)
  14. Ni X, Liu Q, Colloids Surf. A: Physicochem. Eng. Asp., 411, 80 (2012)
  15. Frisch MJ, Trucks GW, Schlegel HB, Gaussian 09, Revision A.02, Gaussian, Inc., Pittsburgh, PA, 2009.
  16. Zhao G, Zhong H, Qiu XY, Wang S, Gao YD, Dai ZL, Huang JP, Liu GY, Miner. Eng., 49, 54 (2013)
  17. Gao Z, Bai D, Sun W, Cao X, Hu Y, Miner. Eng., 72, 23 (2015)
  18. Karlkvist T, Patra A, Rao KH, Bordes R, Holmberg K, J. Colloid Interface Sci., 445, 40 (2015)
  19. Yuan P, Cheng Z, Zhou Z, Yuan W, Semiat R, Colloids Surf. A: Physicochem. Eng. Asp., 328, 60 (2008)
  20. Rezaei-Gomari KA, Hamouda AA, Denoyel R, Colloids Surf. A: Physicochem. Eng. Asp., 287, 29 (2006)
  21. Weng XQ, Mei GJ, Zhao TT, Zhu Y, Sep. Purif. Technol., 103, 187 (2013)
  22. Vazquez-Vuelvas OF, Hernandez-Madrigal JV, Gavino R, Tlenkopatchev MA, Morales-Morales D, German-Acacio JM, J. Mol. Struct., 987, 106 (2011)
  23. Liu G, Zeng H, Lu Q, Zhong H, Choi P, Xu Z, Colloids Surf. A: Physicochem. Eng. Asp., 409, 1 (2012)
  24. Liu GY, Zhong H, Dai TG, Xia LY, Miner. Eng., 21(12-14), 1050 (2008)
  25. Omae I, Coord. Chem. Rev., 280, 84 (2014)
  26. Wang K, Liu Q, Colloids Surf. A: Physicochem. Eng. Asp., 436, 656 (2013)
  27. Kay MI, Frazer BC, Almodovar I, Chem J, J. Chem. Phys., 40, 504 (1964)
  28. Hazen RM, Finger LW, Mariathasan JWE, J. Phys. Chem. Solids, 46, 253 (1985)
  29. Marinakis KI, Kelsall GH, Colloids Surf., 26, 243 (1987)
  30. Cooper TG, Leeuw NH, Surf. Sci., 531, 159 (2003)
  31. Gao Z, Sun W, Hu Y, Liu X, Trans. Nonferrous Met. Soc. China, 23, 2147 (2013)
  32. Darkins R, Cote AS, Freeman CL, Duffy DM, J. Cryst. Growth, 367, 110 (2013)
  33. Hockly E, Richon VM, Woodman B, Smith DL, Zhou X, Rosa E, Sathasivam K, Ghazi-Noori S, Mahal A, Lowden PAS, Steffan JS, Proc. Natl. Acad. Sci. U.S.A., 100, 2041 (2003)
  34. Juvale DC, Kulkarni VV, Deokar HS, Wagh NK, Padhye SB, Kulkarni VM, Org. Biomol. Chem., 4, 2858 (2006)
  35. Chen PC, Patil V, Guerrant W, Green P, Oyelere AK, Bioorg. Med. Chem., 16, 4839 (2008)
  36. Klinglele J, Boas JF, Pilbrow JR, Moubaraki B, Murray KS, Berry KJ, Hunter KA, Jameson GB, Boyd PDW, Brooker S, J. Chem. Soc.-Dalton Trans., 6, 633 (2007)
  37. Hemgesberg M, Schutz S, Muller C, Schlorholz M, Latzel H, Sun Y, Ziegler C, Thiel WR, Appl. Surf. Sci., 259, 406 (2012)
  38. Kou J, Tao D, Xu G, Int. J. Miner. Process., 95(1-4), 1 (2010)