Fluorite, a strategic industrial mineral, was investigated for flotation separation from bastnaesite with tannic acid (TA) as depressant. In this study, the adsorption analysis indicates that the adsorption density of TA on bastnaesite was greater than that of fluorite. The zeta potential, Fourier transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS) provide the evidence that chemisorption and electrostatic attraction occurred simultaneously between TA and fluorite or bastnaesite at optimal pH, the latter also involving hydrogen bonding interactions. Furthermore, the micro-flotation and batch flotation results suggest that TA could effectively depress bastnaesite with a negligible effect on fluorite at low concentrations, and that TA attached to the surface of bastnaesite precluded the adsorption of phthalic acid (PA) as collector, whereas it could be adsorbed on the fluorite surface. These findings offer a robust theoretical foundation and valid guidance for the flotation separation of fluorite from bastnaesite in industrial processes.
AbbasiM, SalariradMM, GhasemiI.2010. Selective separation of PVC from PET/PVC mixture using floatation by tannic acid depressant. Iran Polym J. 19(7):483–489.
2.
AsadiM, MohammadiMT, MoosakazemiF, EsmaeiliMJ, ZakeriM.2018. Development of an environmentally friendly flowsheet to produce acid grade fluorite concentrate. J Cleaner Prod. 186:782–798. doi: 10.1016/j.jclepro.2018.03.118.
3.
BêcheE, CharvinP, PerarnauD, AbanadesS, FlamantG.2008. Ce 3d XPS investigation of cerium oxides and mixed cerium oxide (CexTiyOz). Surf Interface Anal. 40(3-4):264–267. doi: 10.1002/sia.2686.
BermúdezdCFH, BorregoAG.1996. The influence of temperature during flotation of celestite and calcite with sodium oleate and quebracho. Int J Miner Process. 46(1-2):35–52. doi: 10.1016/0301-7516(95)00059-3.
6.
BermúdezdCFH, HocesMCD.1993. Influence of quebracho and sodium silicate on flotation of celestite and calcite with sodium oleate. Int J Miner Process. 37(3-4):283–298. doi: 10.1016/0301-7516(93)90032-6.
7.
BremmellKE, FornasieroD, RalstonJ.2005. Pentlandite–lizardite interactions and implications for their separation by flotation. Colloids Surf A. 252(2-3):207–212. doi: 10.1016/j.colsurfa.2004.10.100.
8.
CaoS, CaoY, LiaoY, MaZ.2018a. Depression mechanism of strontium ions in bastnaesite flotation with salicylhydroxamic acid as collector. Minerals. 8(2):66. doi: 10.3390/min8020066.
9.
CaoS, CaoY, MaZ, LiaoY.2018b. Metal ion release in bastnaesite flotation system and implications for flotation. Minerals. 8(5):203. doi: 10.3390/min8050203.
10.
CaoS, CaoY, MaZ, LiaoY, ZhangX.2020. Structural and electronic properties of bastnaesite and implications for surface reactions in flotation. J Rare Earths. 38(3):332–338. doi: 10.1016/j.jre.2019.04.020.
11.
CaoZ, CaoY, QuQ, ZhangJ, MuY.2019. Separation of bastnäsite from fluorite using ethylenediamine tetraacetic acid as depressant. Miner Eng. 134:134–141. doi: 10.1016/j.mineng.2019.01.030.
12.
ChangS, LiM, GaoK, ZhangD, DuanH, MaL, RuanZ.2022. Mechanism of phthalic acid collector in flotation separation of fluorite and rare earth. J Rare Earths. 40(1):118–126. doi: 10.1016/j.jre.2020.11.002.
13.
ChenW, ChenY, BuX, LongT, ZhangG, ChenF, LiuR, JiaK, SongY.2019. Rheological investigations on the hetero-coagulation between the fine fluorite and quartz under fluorite flotation-related conditions. Powder Technol. 354:423–431. doi: 10.1016/j.powtec.2019.06.019.
14.
ChenZ.2019. Reserch of floatability and its Crystal chemical mechanisms of scheelite and other calcium-containing minerals. Northeastern University, Shenyang in China; p. 149.
15.
DerhyM, TahaY, HakkouR, BenzaazouaM.2020. Review of the main factors affecting the flotation of phosphate ores. Minerals. 10(12):1109. doi: 10.3390/min10121109.
16.
DuanH, LiuW, WangX, ZhaoL, FangP, GuX.2020. Preparation of a novel bis hydroxamic collector and its impact on bastnaesite flotation. Miner Eng. 156:106496. doi: 10.1016/j.mineng.2020.106496.
17.
ErdemP, BursaliEA, YurdakocM.2013. Preparation and characterization of tannic acid resin: study of boron adsorption. Environ Prog Sustain Energy. 32(4):1036–1044. doi: 10.1002/ep.11703.
18.
EspirituERL, Da SilvaGR, AziziD, LarachiF, WatersKE.2018. The effect of dissolved mineral species on bastnäsite, monazite and dolomite flotation using benzohydroxamate collector. Colloids Surf A. 539:319–334. doi: 10.1016/j.colsurfa.2017.12.038.
19.
FilippovaIV, FilippovLO, DuvergerA, SeverovVV.2014. Synergetic effect of a mixture of anionic and nonionic reagents: Ca mineral contrast separation by flotation at neutral pH. Miner Eng. 66-68:135–144. doi: 10.1016/j.mineng.2014.05.009.
20.
FilippovaIV, FilippovLO, LafhajZ, BarresO, FornasieroD.2018. Effect of calcium minerals reactivity on fatty acids adsorption and flotation. Colloids Surf A. 545:157–166. doi: 10.1016/j.colsurfa.2018.02.059.
21.
FoucaudY, LainéJ, FilippovLO, BarrèsO, KimWJ, FilippovaIV, PastoreM, LebègueS, BadawiM.2021. Adsorption mechanisms of fatty acids on fluorite unraveled by infrared spectroscopy and first-principles calculations. J Colloid Interface Sci. 583:692–703. doi: 10.1016/j.jcis.2020.09.062.
22.
GaoJ, HuY, SunW, LiuR, GaoZ, HanH, LyuF, JiangW.2019. Enhanced separation of fluorite from calcite in acidic condition. Miner Eng. 133:103–105. doi: 10.1016/j.mineng.2019.01.013.
23.
GaoZ, BaiD, SunW, CaoX, HuY.2015. Selective flotation of scheelite from calcite and fluorite using a collector mixture. Miner Eng. 72:23–26. doi: 10.1016/j.mineng.2014.12.025.
24.
GaoZ, WangC, SunW, GaoY, KowalczukPB.2021. Froth flotation of fluorite: a review. Adv Colloid Interface Sci. 290:102382. doi: 10.1016/j.cis.2021.102382.
25.
GarandA, MucciA.2004. The solubility of fluorite as a function of ionic strength and solution composition at 25°C and 1 atm total pressure. Mar Chem. 91(1-4):27–35. doi: 10.1016/j.marchem.2004.04.002.
26.
GiesekkeEW.1983. A review of spectroscopic techniques applied to the study of interactions between minerals and reagents in flotation systems. Int J Miner Process. 11(1):19–56. doi: 10.1016/0301-7516(83)90043-1.
27.
GuoC, HouS, WangW, JinH.2022. Surface chemistry of xanthan gum interactions with bastnaesite and fluorite during flotation. Miner Eng. 189:107891. doi: 10.1016/j.mineng.2022.107891.
28.
HanG, WenS, WangH, FengQ.2020. Interaction mechanism of tannic acid with pyrite surfaces and its response to flotation separation of chalcopyrite from pyrite in a low-alkaline medium. J Mater Res Technol. 9(3):4421–4430. doi: 10.1016/j.jmrt.2020.02.067.
29.
HuY, XuZ.2003. Interactions of amphoteric amino phosphoric acids with calcium-containing minerals and selective flotation. Int J Miner Process. 72(1-4):87–94. doi: 10.1016/S0301-7516(03)00089-9.
30.
HwangYS, LiuJ, LenhartJJ, HadadCM.2007. Surface complexes of phthalic acid at the hematite/water interface. J Colloid Interface Sci. 307(1):124–134. doi: 10.1016/j.jcis.2006.11.020.
31.
JongK, PaekI, KimY, LiI, JangD.2020. Flotation mechanism of a novel synthesized collector from Evodiaefructus onto fluorite surfaces. Miner Eng. 146:106017. doi: 10.1016/j.mineng.2019.106017.
32.
KangJ, HuY, SunW, GaoZ, LiuR.2019. Utilization of sodium hexametaphosphate for separating scheelite from calcite and fluorite using an anionic–nonionic collector. Minerals. 9(11):705. doi: 10.3390/min9110705.
33.
LiLZ, YangX.2016. China's rare earth resources, mineralogy, and beneficiation. In: Ismar Borges De LimaWalter Leal Filho, editor. Rare earths industry. Elsevier; p. 139–150. doi: 10.1016/B978-0-12-802328-0.00009-7.
34.
LimaRMF, BrandãoPRG, PeresAEC.2005. The infrared spectra of amine collectors used in the flotation of iron ores. Miner Eng. 18(2):267–273. doi: 10.1016/j.mineng.2004.10.016.
35.
LinY, ChenC, WangW, JiangY, CaoX.2020. Beneficial effects and mechanism of lead ions for bastnaesite flotation with octyl hydroxamic acid collector. Miner Eng. 148:106199. doi: 10.1016/j.mineng.2020.106199.
36.
MagotraR, NamgaS, SinghP, AroraN, SrivastavaPK.2017. A new classification scheme of fluorite deposits. Int J Geosci. 8(4):599–610. doi: 10.4236/ijg.2017.84032.
37.
MillerJD, HuJS, JinR.1989. Thermochemistry of oleate adsorption at the fluorite/water interface. Colloids Surf. 42(1):71–84. doi: 10.1016/0166-6622(89)80078-2.
38.
MuhozaB, XiaS, ZhangX.2019. Gelatin and high methyl pectin coacervates crosslinked with tannic acid: the characterization, rheological properties, and application for peppermint oil microencapsulation. Food Hydrocolloids. 97:105174. doi: 10.1016/j.foodhyd.2019.105174.
39.
OzcanO, BulutcuAN.1993. Electrokinetic, infrared and flotation studies of scheelite and calcite with oxine, alkyl oxine, oleoyl sarcosine and quebracho. Int J Miner Process. 39(3-4):275–290. doi: 10.1016/0301-7516(93)90020-B.
40.
PerryDL, TsaoL, BrittainHG.1984. X-ray photoelectron and infrared spectroscopic studies of the decarboxylation/oxidation of cerium(III) carbonate octahydrate. J Mater Sci Lett. 3:1017–1019. doi: 10.1007/BF00720345.
41.
PitaF, CastilhoA.2017. Separation of plastics by froth flotation. The role of size, shape and density of the particles. Waste Manage. 60:91–99. doi: 10.1016/j.wasman.2016.07.041.
42.
QiJ, FanH, LiuG.2020a. β-Amino-hydroxamate surfactants: preparation, and adsorption mechanism in bastnaesite flotation. Sep Purif Technol. 240:116634. doi: 10.1016/j.seppur.2020.116634.
43.
QiJ, LiuG, DongY.2020b. Probing the hydrophobic mechanism of N-[(3-hydroxyamino)-propoxy]-N-octyl dithiocarbamate toward bastnaesite flotation by in situ AFM, FTIR and XPS. J Colloid Interface Sci. 572:179–189. doi: 10.1016/j.jcis.2020.03.080.
44.
RezaeiR, MassinaeiM, MoghaddamAZ.2018. Removal of the residual xanthate from flotation plant tailings using modified bentonite. Miner Eng. 119:1–10. doi: 10.1016/j.mineng.2018.01.012.
45.
RutledgeJ, AndersonCG.2015. Tannins in mineral processing and extractive metallurgy. Metals (Basel). 5(3):1520–1542. doi: 10.3390/met5031520.
46.
SarquísPE, Menéndez-AguadoJM, MahamudMM, DziobaR.2014. Tannins: the organic depressants alternative in selective flotation of sulfides. J Cleaner Prod. 84:723–726. doi: 10.1016/j.jclepro.2014.08.025.
47.
SarvaraminiA, AziziD, LarachiF.2016. Hydroxamic acid interactions with solvated cerium hydroxides in the flotation of monazite and bastnasite—experiments and DFT study. Appl Surf Sci. 387:986–995. doi: 10.1016/j.apsusc.2016.07.044.
48.
TangarfaM, HassaniNSA.2021. Adsorption of tannic acid on fluorite surface: experimental and modelling studies. EasyChair. 5117.
49.
TangarfaM, HassaniNSA.2022. The behaviour of tannic acid adsorption on fluorite surface: isotherm, kinetic and thermodynamic studies. Physicochem Probl Mineral Process. 58(1):77–87. doi: 10.37190/ppmp/144288.
50.
TangarfaM, Semlali Aouragh HassaniN, AlaouiA.2019. Behavior and mechanism of tannic acid adsorption on the calcite surface: isothermal, kinetic, and thermodynamic studies. ACS Omega. 4(22):19647–19654. doi: 10.1021/acsomega.9b02259.
51.
TohryA, DehghanR, de Salles Leal FilhoL, ChelganiSC.2021. Tannin: an eco-friendly depressant for the green flotation separation of hematite from quartz. Miner Eng. 168:106917. doi: 10.1016/j.mineng.2021.106917.
52.
WangZ, WuH, XuY, ShuK, YangJ, LuoL, XuL.2020. Effect of dissolved fluorite and barite species on the flotation and adsorption behavior of bastnaesite. Sep Purif Technol. 237:116387. doi: 10.1016/j.seppur.2019.116387.
53.
WeiW, LiJ, HanX, YaoY, ZhaoW, HanR, LiS, ZhangY, ZhengC.2021. Insights into the adsorption mechanism of tannic acid by a green synthesized nano-hydroxyapatite and its effect on aqueous Cu(II) removal. Sci Total Environ. 778:146189. doi: 10.1016/j.scitotenv.2021.146189.
54.
XiongW, DengJ, ZhaoK, WangW, WangY, WeiD.2020. Bastnaesite, barite, and calcite flotation behaviors with salicylhydroxamic acid as the collector. Minerals. 10(3):282. doi: 10.3390/min10030282.
55.
XuW, HanEH, WangZ.2019. Effect of tannic acid on corrosion behavior of carbon steel in NaCl solution. J Mater Sci Technol. 35(1):64–75. doi: 10.1016/j.jmst.2018.09.001.
56.
XuY, XuL, WuH, WangZ, ShuK, FangS, ZhangZ.2020. Flotation and co–adsorption of mixed collectors octanohydroxamic acid/sodium oleate on bastnaesite. J Alloys Compd. 819:152948. doi: 10.1016/j.jallcom.2019.152948.
57.
YangX, SaturJV, SanematsuK, LaukkanenJ, SaastamoinenT.2015. Beneficiation studies of a complex REE ore. Miner Eng. 71:55–64. doi: 10.1016/j.mineng.2014.10.005.
58.
YangY, ChunyaoS, ShuoshiL.2013. Study of flotability and crystal chemistry analysis of sheelite and calciun minerals. J China Univ Min Technol. 42(2):7. doi: 10.13247/j.cnki.jcumt.2013.02.019.
59.
YaoJ, HanH, HouY, GongE, YinW.2016. A method of calculating the interaction energy between particles in minerals flotation. Math Probl Eng. 2016. doi: 10.1155/2016/8430745.
60.
ZhangC, WeiS, HuY, TangH, GaoJ, YinZ, GuanQ.2018. Selective adsorption of tannic acid on calcite and implications for separation of fluorite minerals. J Colloid Interface Sci. 512:55–63. doi: 10.1016/j.jcis.2017.10.043.
61.
ZhangW, HonakerRQ, GroppoJG.2017. Flotation of monazite in the presence of calcite part I: calcium ion effects on the adsorption of hydroxamic acid. Miner Eng. 100:40–48. doi: 10.1016/j.mineng.2016.09.020.
62.
ZhangX, DuH, WangX, MillerJD.2013. Surface chemistry considerations in the flotation of rare-earth and other semisoluble salt minerals. Min Metall Explor. 30(1):24–37. doi: 10.1007/BF03402338.
63.
ZhangY, SongS.2003. Beneficiation of fluorite by flotation in a new chemical scheme. Miner Eng. 16(7):597–600. doi: 10.1016/S0892-6875(03)00136-5.
64.
ZhouW, MorenoJ, TorresR, ValleH, SongS.2013. Flotation of fluorite from ores by using acidized water glass as depressant. Miner Eng. 45:142–145. doi: 10.1016/j.mineng.2013.02.017.
