| Citation: | Ouyang Liaoyuan, Chen Yuangan, Wang Huihui, Feng Bo. The Desorption Behavior of Methylcellulose from Talc at Different Temperature of Pulp[J]. Multipurpose Utilization of Mineral Resources, 2022, (2): 66-68, 78. doi: 10.3969/j.issn.1000-6532.2022.02.012 |
Through flotation tests and desorption tests, the desorption behavior of methylcellulose from the surface of talc at different temperatures and its influence on the flotation of talc were studied. The results show that the natural floatability of talc is good. The depressive effect on methylcellulose on talc is enhanced with the increase of pulp temperature. Washing can weaken the depressive effect on methylcellulose on talc, increase the flotation recovery of talc, and increase the flotation recovery of talc more at low temperature. The flotation separation of chalcopyrite and talc can be realized by using methylcellulose.
| [1] | 赵玉卿, 黄秉雄, 刘磊, 等. 蛇纹石、绿泥石、滑石的可浮性及抑制方法综述[J]. 矿产综合利用, 2018(2): 7-11. ZHAO Y Q, HUANG B X, LIU L, et al. Review of floatability and inhibition methods of serpentine, chlorite and talc[J]. Multipurpose Utilization of Mineral Resources, 2018 (2): 7-11. |
| [2] | 龙涛, 冯其明, 卢毅屏, 等. 羧甲基纤维素对层状镁硅酸盐矿物浮选的抑制与分散作用[J]. 中国有色金属学报, 2011, 21(5):1145-1150. LONG T, FENG Q M, LU Y P, et al. Inhibition and dispersion of layered magnesium silicate minerals by carboxymethyl cellulose[J]. The Chinese Journal of Nonferrous Metals, 2011, 21(5):1145-1150. |
| [3] | Steenberg E, HarrisPJ. Adsorption of carboxymethyl cellulose, guar gum and starch onto talc, sulphides, oxides and salt-type minerals. South African journal of chemistry, 1984, 37: 85–90. |
| [4] | 刘谷山, 冯其明, 张国范. 某铜镍硫化矿浮选脱除滑石的研究[J]. 金属矿山, 2005(9):35-37. doi: 10.3321/j.issn:1001-1250.2005.09.010 LIU G S, FENG Q M, ZHANG G F. Study on flotation removal of talc from a copper-nickel sulfide ore[J]. Metal Mine, 2005(9):35-37. doi: 10.3321/j.issn:1001-1250.2005.09.010 |
| [5] | Khraisheh M, Holland C, Creany C, Harris P, Parolis L. Effect of molecular weight and concentration on the adsorption of CMC onto talc at different ionic strengths. International Journal of Mineral Processing, 2005, 75: 197–206. |
| [6] | 欧乐明, 齐超. 非极性表面矿物滑石与辉钼矿浮选分离中的多糖抑制[J]. 金属矿山, 2015, 44(5):5-89. OU L M, QI C. Polysaccharide inhibition in flotation separation of non-polar surface mineral talc and molybdenite[J]. METAL MINE, 2015, 44(5):5-89. |
| [7] | Zhang Y, Gao C, Li X, et al. Thermosensitive methylcellulose-based injectable hydrogels for post-operation anti-adhesion[J]. Carbohydrate polymers, 2014, 101:171-178. doi: 10.1016/j.carbpol.2013.09.001 |
| [8] | Lin S Y, Wang S L, Wei Y S, et al. Temperature effect on water desorption from methylcellulose films studied by thermal FT-IR microspectroscopy[J]. Surface science, 2007, 601(3):781-785. doi: 10.1016/j.susc.2006.11.006 |
| [9] | 冯博, 朱贤文, 彭金秀. 甲基纤维素的应激反应及其对滑石浮选的影响[J]. 中国有色金属学报, 2017, 27(5): 1031-1036. FENG B, ZHU X W, PENG J X. Stress reaction of methyl cellulose and its effect on talc flotation. The Chinese Journal of Nonferrous Metals, 2017, 27(5): 1031-1036. |
Relationship between talc flotation recovery and pH (MIBC=1×10-4 mol/L)
Effect on temperature on talc flotation with methycellulose
Effect on methycellulose dosage on talc flotation at different temperature
Effect on washing times on talc flotation recovery
Desorption behavior of methylcellulose at different conditions