钨矿山伴生有价组分综合回收的研究
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摘要
本文以赣南茅坪矿区深部浸染型矿体云英岩钨矿石为对象,采用浮—重流程回收钨、钼、铋、铜有价矿物,侧重对矿石中伴生的钼、铋、铜硫化矿浮选分离进行详细试验研究,以使用高效新药剂为目标,通过筛选比较,以PMo-4#替代煤油作辉钼矿捕收剂,XTL-3为铜抑制剂用于铋铜分离,取得良好效果。
针对辉钼矿、辉铋矿、黄铜矿三种单矿物进行了可浮性研究,试验结果表明,辉钼矿、黄铜矿在试验pH(4~12)范围内均有较好的可浮性,而辉铋矿pH>9时,可浮性明显下降;钼捕收剂PMo-4#对辉钼矿的捕收性能优于煤油,用量仅为煤油的一半。当PMo-4#用量在15mg·L-1时,辉钼矿上浮量达95%以上;新型铜抑制剂XTL-3只抑制黄铜矿不抑制辉铋矿,当XTL-3用量在50 mg·L-1时黄铜矿受到强烈抑制,相比于ZnSO4∶NaCN(2∶1),在分离效果相当的情况下,使用XTL-3可减少污染,有利于保护生态环境。红外光谱分析结果表明,XTL-3是一种多官能团的小分子有机抑制剂,可能的官能团有-SH、-OH、-COO-,并对这些官能团在铜矿物表面作用的可能性进行了初步分析。
在实际矿石的实验中,验证了PMo-4#的捕收性能和XTL-3的抑制效果。采用优先浮钼,铋铜混浮—分离原则流程,经实验室小型闭路试验,获钼精矿品位47.27%,回收率87.78%;铋精矿品位16.16%,回收率76.39%;铜精矿品位17.68%,回收率66.59%。同时对黑钨矿也进行了回收的试验研究。
The paper investigated deep part of disseminated orebody greisen tungsten ore in mining area of GanNan maoping. Gravity-Flotation Dressing Technology was used for recovering valuable metals, such as tungsten, molybdenum, bismuth and copper. The flotation separation of associated bismuth, molybdenum and copper sulphide ore were extra emphasis investigated in detail. Targeting the use of highly efficient medicine for goal, the better results were obtained for new type of molybdenum collector PMo-4#, which was substituted for molybdenite collecting agent, and XTL-3 copper depressant was used to separate bismuth and copper, through screening and comparison.
This paper investigated the flotability of there kinds of monomineral, for example, molybdenite, bismuthinite and copper pyrites. The experiment results showed that molybdenite and copper pyrites had better floatability in test pH(4~12), and bismuthinite floatability dramatic declined in pH>9. The molybdenum collector PMo-4# worked on molybdenite superior to kerosene catchability, the dosage of PMo-4# only half as much as kerosene. When the dosage of PMo-4# was 15mg·L-1, the content of upward floating had reached 95%. The new type of copper deactivator XTL-3 only suppressed the copper pyrites without bismuthinite. When the dosage of XTL-3 was 50 mg·L-1, copper pyrites was greatly restrained. Compared to zinc sulfate+cyanide (2∶1) reagent, using XTL-3 to inhibit copper pyrites were abtained considerably separating effect and pollution abatement, in favor of preserve the ecological environment. The infrared spectrum analysis results showed that XTL-3 is a polyfunctional group for micromolecule organic inhibitor and preliminary analyze it probability surface action of copper mineral, the possibility functional group such as -SH、-OH、-COO-.
The real ore test results verifyed the catchability of PMo-4# and inhibition effect of XTL-3. Adopting preferential flotation molybdenum, principle flow of bismuth and copper bulk flotation and separation. It had obtained molybdenum concentrate grade was 47.27% and coefficient of recovery was 87.79%, bismuth concentrate grade was 47.27% and coefficient of recovery was 76.39%, copper concentrate grade was 17.68% and coefficient of recovery was 66.59% by closed-circuit test. At the same time, the experimental investigation ofpeanut ore were also processed and reclaimed.
针对辉钼矿、辉铋矿、黄铜矿三种单矿物进行了可浮性研究,试验结果表明,辉钼矿、黄铜矿在试验pH(4~12)范围内均有较好的可浮性,而辉铋矿pH>9时,可浮性明显下降;钼捕收剂PMo-4#对辉钼矿的捕收性能优于煤油,用量仅为煤油的一半。当PMo-4#用量在15mg·L-1时,辉钼矿上浮量达95%以上;新型铜抑制剂XTL-3只抑制黄铜矿不抑制辉铋矿,当XTL-3用量在50 mg·L-1时黄铜矿受到强烈抑制,相比于ZnSO4∶NaCN(2∶1),在分离效果相当的情况下,使用XTL-3可减少污染,有利于保护生态环境。红外光谱分析结果表明,XTL-3是一种多官能团的小分子有机抑制剂,可能的官能团有-SH、-OH、-COO-,并对这些官能团在铜矿物表面作用的可能性进行了初步分析。
在实际矿石的实验中,验证了PMo-4#的捕收性能和XTL-3的抑制效果。采用优先浮钼,铋铜混浮—分离原则流程,经实验室小型闭路试验,获钼精矿品位47.27%,回收率87.78%;铋精矿品位16.16%,回收率76.39%;铜精矿品位17.68%,回收率66.59%。同时对黑钨矿也进行了回收的试验研究。
The paper investigated deep part of disseminated orebody greisen tungsten ore in mining area of GanNan maoping. Gravity-Flotation Dressing Technology was used for recovering valuable metals, such as tungsten, molybdenum, bismuth and copper. The flotation separation of associated bismuth, molybdenum and copper sulphide ore were extra emphasis investigated in detail. Targeting the use of highly efficient medicine for goal, the better results were obtained for new type of molybdenum collector PMo-4#, which was substituted for molybdenite collecting agent, and XTL-3 copper depressant was used to separate bismuth and copper, through screening and comparison.
This paper investigated the flotability of there kinds of monomineral, for example, molybdenite, bismuthinite and copper pyrites. The experiment results showed that molybdenite and copper pyrites had better floatability in test pH(4~12), and bismuthinite floatability dramatic declined in pH>9. The molybdenum collector PMo-4# worked on molybdenite superior to kerosene catchability, the dosage of PMo-4# only half as much as kerosene. When the dosage of PMo-4# was 15mg·L-1, the content of upward floating had reached 95%. The new type of copper deactivator XTL-3 only suppressed the copper pyrites without bismuthinite. When the dosage of XTL-3 was 50 mg·L-1, copper pyrites was greatly restrained. Compared to zinc sulfate+cyanide (2∶1) reagent, using XTL-3 to inhibit copper pyrites were abtained considerably separating effect and pollution abatement, in favor of preserve the ecological environment. The infrared spectrum analysis results showed that XTL-3 is a polyfunctional group for micromolecule organic inhibitor and preliminary analyze it probability surface action of copper mineral, the possibility functional group such as -SH、-OH、-COO-.
The real ore test results verifyed the catchability of PMo-4# and inhibition effect of XTL-3. Adopting preferential flotation molybdenum, principle flow of bismuth and copper bulk flotation and separation. It had obtained molybdenum concentrate grade was 47.27% and coefficient of recovery was 87.79%, bismuth concentrate grade was 47.27% and coefficient of recovery was 76.39%, copper concentrate grade was 17.68% and coefficient of recovery was 66.59% by closed-circuit test. At the same time, the experimental investigation ofpeanut ore were also processed and reclaimed.
引文
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