Research Article
BibTex RIS Cite

Copper Recovery from Roasted Chalcopyrite Concentrate by Using Hydrochloric Acid or Water Leaching Method

Year 2015, Volume: 1 Issue: 1, 1 - 8, 07.09.2015

Abstract

In this study, the sulphation roasting in atmospheric medium of chalcopyrite concentrate and hydrochloric acid or water leaching of roasted chalcopyrite concentrate were investigated. The effects of roasting temperature (200-700 oC) and roasting time (15-120 min.) on recovery of copper were also researched. The optimum roasting temperature and roasting time were determined to be 450 oC and 60 min., respectively. The roasted chalcopyrite concentrate is leached with hydrochloric acid solution or water for recovery of copper. It was shown that the copper extractions from roasted chalcopyrite concentrate are high as 85-90%, while recoveries of iron were are only 6-20%. The leaching conditions with hydrochloric acid solution or water for roasted chalcopyrite concentrate were selected as follows: liquid/solid (v/w) ratio, 10 mL/g; leaching temperature, ambiance temperature; leaching time, 15 min; concentration of hydrochloric acid solution, 0.1 N. Under these conditions, for roasting at 450 oC, recoveries of copper and iron with hydrochloric acid leaching were 89.7% and 20.1%, respectively. On the other hand, copper and iron extraction yields with water leaching were 86.8% and 13.5%, respectively. For all conditions, it was determined that the amounts of copper obtained from hydrochloric acid leaching are higher than values obtained from water leaching

References

  • Adebayo, A.O., Ipinmoroti, K.O., Ajayi, O.O., 2003, Dissolution kinetics of chalcopyrite with hydrogen peroxide in sulphuric acid medium. Chemical and Biochemical Engineering Quarterly, 17:213–218.
  • Bayer, G., Wiedemann, H.G., 1992, Thermal analysis of chalcopyrite roasting reactions. Thermochimica Acta, 2: 3030-312.
  • Cai, Y., Chen, X., Ding, J., Zhou, D., 2012, Leaching mechanism for chalcopyrite in hydrochloric acid. Hydrometallurgy, 113: 109–118.
  • Chakravortty, M., Srikanth, S., 2000, Kinetics of salt roasting of chalcopyrite using KCl. Thermochimica Acta, 362: 25-35.
  • Engineering, 17: 469-471.
  • Ruiz, M.C., Montes, K.S., Padilla, R., 2011, Chalcopyrite leaching in sulfate-chloride media at ambient pressure. Hydrometallurgy, 109: 37–42.
  • Sandström, A., Shchukarev, A., Paul, J., 2005, XPS characterisation of chalcopyrite chemically and bio-leached at high and low redox potential. Mineral Engineering 18: 505–515.
  • Sokic, M., Ilıc, I., Zivkovic, D., Vuckovic, N., 2008, Investigation of mechanism and kinetics of chalcopyrite concentrate oxidation process. Metabk, 47: 109-113.
  • Solis-Marcial, O.J., Lapidus, G.T., 2013, Improvement of chalcopyrite dissolution in acid media using polar organic solvents.
  • Hydrometallurgy, 131: 120–126.
  • Solis-Marcial, O.J., Lapidus, G.T., 2014, Chalcopyrite leaching in alcoholic acid media. Hydrometallurgy, 147: 54–58.
  • Qian, G., Li, J., Li, Y., Gerson, A.R., 2014, Probing the effect of aqueous impurities on the leaching of chalcopyrite under controlled conditions. Hydrometallurgy, 149: 195–20.
  • Watling, H.R., 2006. The bioleaching of sulphide minerals with emphasis on copper sulphides a review. Hydrometallurgy, 84: 81–108.
  • Zivkovic, Z., Mitevska, N., Savovic, V., 1996. Kinetics and mechanism of the chalcopyrite-pyrite concentrate oxidation process. Thermochimica Acta, 282/283: 121-130.

Hidroklorik Asit veya Su Liçi Yöntemi Kullanarak Kavrulmuş Kalkopirit Konsantresinden Bakır Kazanılması

Year 2015, Volume: 1 Issue: 1, 1 - 8, 07.09.2015

Abstract

Bu çalışmada, kalkopirit konsantresinin atmosferik ortamda sülfatlama kavurması ve kavrulmuş kalkopirit konsantresinin hidroklorik asit veya su liçi incelendi. Bakır kazanılması üzerine kavurma sıcaklığı (200-700 oC) ve kavurma zamanının (15-120 dk) etkileri de araştırıldı. En uygun kavurma sıcaklığı ve kavurma süresi, sırasıyla, 450 oC ve 60 dk olarak belirlendi. Kavrulmuş kalkopirit konsantresi, bakırın kazanılması için, hidroklorik asit çözeltisi veya su ile liç edildi. Kavrulmuş kalkopirit konsantresinden sadece % 6-20 demir kazanımı olurken % 85-90 gibi yüksek bakır ekstraksiyonu olduğu görüldü. Kavrulmuş kalkopirit konsantresi için hidroklorik asitçözeltisi ve su ile liç şartları, müteakip şekilde seçildi: sıvı/katı (v/w) oranı, 1 0 mL/g; liç sıcaklığı: ortam sıcaklığı; liç süresi: 15 dakika; hidroklorik asit derişimi: 0.1 N. Bu şartlar altında, 450 oC'deki kavurma için, hidroklorik asit liçi ile bakır ve demir kazanımları, sırasıyla, % 89.7 ve % 20.1'dir. Diğer taraftan, su liçi ile bakır ve demir ekstraksiyon miktarları, sırasıyla, % 86.8 ve % 13.5'tir. Tüm şartlar için, hidroklorik asit liçinden elde edilen bakır miktarlarının su liçinden elde edilen değerlerden daha yüksek olduğu belirlendi.

References

  • Adebayo, A.O., Ipinmoroti, K.O., Ajayi, O.O., 2003, Dissolution kinetics of chalcopyrite with hydrogen peroxide in sulphuric acid medium. Chemical and Biochemical Engineering Quarterly, 17:213–218.
  • Bayer, G., Wiedemann, H.G., 1992, Thermal analysis of chalcopyrite roasting reactions. Thermochimica Acta, 2: 3030-312.
  • Cai, Y., Chen, X., Ding, J., Zhou, D., 2012, Leaching mechanism for chalcopyrite in hydrochloric acid. Hydrometallurgy, 113: 109–118.
  • Chakravortty, M., Srikanth, S., 2000, Kinetics of salt roasting of chalcopyrite using KCl. Thermochimica Acta, 362: 25-35.
  • Engineering, 17: 469-471.
  • Ruiz, M.C., Montes, K.S., Padilla, R., 2011, Chalcopyrite leaching in sulfate-chloride media at ambient pressure. Hydrometallurgy, 109: 37–42.
  • Sandström, A., Shchukarev, A., Paul, J., 2005, XPS characterisation of chalcopyrite chemically and bio-leached at high and low redox potential. Mineral Engineering 18: 505–515.
  • Sokic, M., Ilıc, I., Zivkovic, D., Vuckovic, N., 2008, Investigation of mechanism and kinetics of chalcopyrite concentrate oxidation process. Metabk, 47: 109-113.
  • Solis-Marcial, O.J., Lapidus, G.T., 2013, Improvement of chalcopyrite dissolution in acid media using polar organic solvents.
  • Hydrometallurgy, 131: 120–126.
  • Solis-Marcial, O.J., Lapidus, G.T., 2014, Chalcopyrite leaching in alcoholic acid media. Hydrometallurgy, 147: 54–58.
  • Qian, G., Li, J., Li, Y., Gerson, A.R., 2014, Probing the effect of aqueous impurities on the leaching of chalcopyrite under controlled conditions. Hydrometallurgy, 149: 195–20.
  • Watling, H.R., 2006. The bioleaching of sulphide minerals with emphasis on copper sulphides a review. Hydrometallurgy, 84: 81–108.
  • Zivkovic, Z., Mitevska, N., Savovic, V., 1996. Kinetics and mechanism of the chalcopyrite-pyrite concentrate oxidation process. Thermochimica Acta, 282/283: 121-130.
There are 14 citations in total.

Details

Primary Language English
Subjects Engineering
Journal Section Articles
Authors

Nurdan Bahar

Publication Date September 7, 2015
Submission Date September 7, 2015
Published in Issue Year 2015 Volume: 1 Issue: 1

Cite

APA Bahar, N. (2015). Copper Recovery from Roasted Chalcopyrite Concentrate by Using Hydrochloric Acid or Water Leaching Method. International Journal of Pure and Applied Sciences, 1(1), 1-8.
AMA Bahar N. Copper Recovery from Roasted Chalcopyrite Concentrate by Using Hydrochloric Acid or Water Leaching Method. International Journal of Pure and Applied Sciences. September 2015;1(1):1-8.
Chicago Bahar, Nurdan. “Copper Recovery from Roasted Chalcopyrite Concentrate by Using Hydrochloric Acid or Water Leaching Method”. International Journal of Pure and Applied Sciences 1, no. 1 (September 2015): 1-8.
EndNote Bahar N (September 1, 2015) Copper Recovery from Roasted Chalcopyrite Concentrate by Using Hydrochloric Acid or Water Leaching Method. International Journal of Pure and Applied Sciences 1 1 1–8.
IEEE N. Bahar, “Copper Recovery from Roasted Chalcopyrite Concentrate by Using Hydrochloric Acid or Water Leaching Method”, International Journal of Pure and Applied Sciences, vol. 1, no. 1, pp. 1–8, 2015.
ISNAD Bahar, Nurdan. “Copper Recovery from Roasted Chalcopyrite Concentrate by Using Hydrochloric Acid or Water Leaching Method”. International Journal of Pure and Applied Sciences 1/1 (September 2015), 1-8.
JAMA Bahar N. Copper Recovery from Roasted Chalcopyrite Concentrate by Using Hydrochloric Acid or Water Leaching Method. International Journal of Pure and Applied Sciences. 2015;1:1–8.
MLA Bahar, Nurdan. “Copper Recovery from Roasted Chalcopyrite Concentrate by Using Hydrochloric Acid or Water Leaching Method”. International Journal of Pure and Applied Sciences, vol. 1, no. 1, 2015, pp. 1-8.
Vancouver Bahar N. Copper Recovery from Roasted Chalcopyrite Concentrate by Using Hydrochloric Acid or Water Leaching Method. International Journal of Pure and Applied Sciences. 2015;1(1):1-8.

154501544915448154471544615445