Characterisation of gravity amenable gold ores - Sample representivity and determination methods

GeoMet 2011 - 1st AusIMM International Geometallurgy Conference 2011

Volumn , Issue , 2011, Pages 281-292

  Dominy, S C ^a,b   Murphy, B ^c   Gray, A H ^c  

^a Snowden Mining Industry Consultants Pty Limited   (Australia)

^b CURTIN UNIVERSITY   (Australia)

^c Gekko Systems Pty Limited   (Australia)

Author keywords

[No Author keywords available]

Indexed keywords

CONCENTRATION METHOD; GOLD ORES; GOLD PARTICLES; GRAVITY SEPARATION; IN-SITU; MINERALISATION; RECOVERY STAGES; REPRESENTIVITY; SAMPLE FREQUENCY;

GOLD DEPOSITS; GRINDING (COMMINUTION); ORES; RECOVERY;

GOLD;

EID: 84866864780     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (44)

1. Ashley, K J and Callow, M I, 2000. Ore variability: Exercises in geometallurgy, Eng Min J, 201:24-28.
2. Angove, J, 2005. Metallurgical testwork: Gold processing options, physical ore properties and cyanide management, in Advances in Gold Ore Processing, pp 97-107 (Elsevier BV: Amsterdam).
3. Berkman, D, 1998. Coarse gold problems, ALS Minerals Division Newsletter, 7(1):1-4.
4. Burt, R O, 1984. Gravity Concentration Technology, 605 p (Elsevier: Amsterdam).
5. Chryssoulis, S L and McMullen, J, 2005. Mineralogical investigation of gold ores, in Advances in Gold Ore Processing, pp 21-71 (Elsevier: Amsterdam).
6. Clark, J, 2005. A simplified gravity recoverable gold test, MSc thesis (unpublished), McGill University, Canada.
7. Clifton, H E, Hunter, R E, Swanson, F J and Phillips, R L, 1969. Sample Size and Meaningful Gold Analysis, professional paper 625-C, 17 p (United States Geological Survey: Washington DC).
8. Dominy, S C, 1997. Sampling and Estimation of Gold Deposits, unpublished final research report for EC BRITE-EURAM MIDAS sub-project, 230 p (University of Greenwich: Chatham and Welsh Gold PLC: Dolgellau).
9. Dominy, S C, 2007. Sampling - A critical component to gold mining project evaluation, in Proceedings Project Evaluation Conference 2007, pp 89-96 (The Australasian Institute of Mining and Metallurgy: Melbourne).
10. Dominy, S C, Annels, A E, Johansen, G F and Cuffley, B W, 2000. General considerations of sampling and assaying in a coarse gold environment, Trans Inst Min Metall, 109:B145-B167.
11. Dominy S C and Petersen J S, 2005. Sampling coarse gold-bearing mineralisation - Developing effective protocols and a case study from the Nalunaq mine, southern Greenland, in Proceedings Second World Conference on Sampling and Blending 2005, pp 151-165 (The Australasian Institute of Mining and Metallurgy: Melbourne).
12. Dominy, S C and Platten, I M, 2007. Gold particle clustering - A new consideration in sampling applications, Trans Inst Min Metal, 116:B130-B142.
13. Dominy, S C, Xie, Y and Platten, I M, 2008a. Characterisation of in-situ gold particle size and distribution for sampling protocol optimisation, in Proceedings Ninth International Congress on Applied Mineralogy 2008, pp 175-185 (The Australasian Institute of Mining and Metallurgy: Melbourne).
14. Dominy, S C, Xie, Y and Platten, I M, 2008b. Gold particle characteristics in narrow vein deposits: implications for evaluation and metallurgy, in Proceedings Narrow Vein Mining Conference 2008, pp 91-104 (The Australasian Institute of Mining and Metallurgy: Melbourne).
15. Dominy S C, Gray, A H and Daffern, T J, 2010. Development of underground gold processing plants, in Proceedings XXV International Mineral Processing Conference 2010, pp 683-696 (The Australasian Institute of Mining and Metallurgy: Melbourne).
16. Dominy, S C, Platten, I M and Minnitt, R C A, 2010. Heterogeneity, sampling errors and the nugget effect in gold ores: implications for evaluation, exploitation and extraction, in Proceedings Gravity Gold Conference 2010, pp 3-17 (The Australasian Institute of Mining and Metallurgy: Melbourne).
17. Dominy, S C, Platten, I M and Xie, Y, 2010. Determining gold particle size in gravity ores for sampling and metallurgical characterisation: discussion and test protocol, in Proceedings Gravity Gold Conference 2010, pp 83-95 (The Australasian Institute of Mining and Metallurgy: Melbourne).
18. Dominy, S C and Minnitt, R C A, 2011. Design of grade control sampling programmes for underground gold mines, in Proceedings Eighth International Mining Geology Conference, pp 271-284 (The Australasian Institute of Mining and Metallurgy: Melbourne).
19. Dominy, S C, Platten, I M, Howard, L E, Elangovan, P, Armstrong, R, Minnitt, R C A and Abel, R L, 2011. Characterisation of gold ores by X-ray computed tomography - Part 2: applications to the determination of gold particle size and distribution, in Proceedings The First AusIMM International Geometallurgy Conference, pp 295-312 (The Australasian Institute of Mining and Metallurgy: Melbourne).
20. François-Bongarçon, D M, 2009. Fishy samples: how big a sample to avoid the infamous 'Poisson effect', in Proceedings of the Fourth World Conference on Sampling and Blending 2009, pp 43-46 (The Southern African Institute of Mining and Metallurgy: Johannesburg).
21. François-Bongarçon, D M and Gy, P M, 2001. The most common error in applying 'Gy's Formula' in the theory of mineral sampling and the history of the Liberation factor, in Mineral Resource and Ore Reserve Estimation - The AusIMM Guide to Good Practice, pp 67-72 (The Australasian Institute of Mining and Metallurgy: Melbourne).
22. Gray, A H, Atasoy, Y, Boadi, Y, Wemyss, P and McCallum, A, 2004. Improving sulphide recoveries in complex gold orebodies using cost effective pre-concentration by gravity, in Proceedings Canadian Mineral Processors Conference, pp103-120 (Canadian Mineral Processors: Ottawa).
23. Gray, A H and Hughes, T, 2007. A focus on gravity and flotation concentration and intensive leaching rewrites conventional milling circuit design and improves environmental and cost outcomes, in Proceedings World Gold Conference 2007, pp 229-238 (The Australian Institute of Mining and Metallurgy: Melbourne).
24. Gy, P M, 1979. Sampling of Particulate Materials: Theory and Practice, 431 p (Elsevier: Amsterdam).
25. Heins, R, Spargo, R and McCallum, R, 2003. Successful application of the In-Line Pressure Jig with particular reference to gold and diamonds, in Proceedings of the Gravity Conference 2003, 16 p (The Southern African Institute of Mining and Metallurgy: Johannesburg).
26. Howard, L E, Elangovan, P, Abel, R L, Dominy, S C, Armstrong, R and Hezel, D, 2011. Characterisation of gold ores by X-ray computed tomography - Part 1: software for calibration and quantification of mineralogical phases, in Proceedings The First International Geometallurgy Conference 2011, pp 321-330 (The Australasian Institute of Mining and Metallurgy: Melbourne).
27. Hughes, T, Donaldson, K and Murphy, B, 2010. Is the Python right for me - Python amenability test work, in Proceedings of the Gravity Gold Conference 2010, pp 101-107 (The Australasian Institute of Mining and Metallurgy: Melbourne).
28. Johansen, G F and Dominy, S C, 2005. Development of sampling protocols at the New Bendigo gold project, Australia, in Proceedings of the Second World Conference on Sampling and Blending 2005, pp 175-183 (The Australasian Institute of Mining and Metallurgy: Melbourne).
29. Koppalkar, S, Bouajila, A, Gagnon, C and Noel, G, 2011. Understanding the discrepancy between prediction and plant GRG recovery for improving the gold gravity performance, Mins Eng, 23:559-564.
30. Laplante, A R, 2000. Testing requirements and insight for gravity gold circuit design, in Proceedings of the Randol Gold and Silver Forum 2000, pp 73-83 (Randol International Limited: Golden).
31. Laplante, A R, 2000. Ten do's and don'ts of gold gravity recovery, in Proceedings Randol Gold and Silver Forum 2000, pp 107-117 (Randol International Limited: Golden).
32. Laplante, A R, Woodcock, F C and Huang L, 2001. A laboratory procedure to characterise gravity recoverable gold, SME Transactions, 308:53-59.
33. th Annual Meeting of the Canadian Mineral Processors, pp 105-124 (Canadian Institute of Mining and Metallurgy: Montreal).
34. Laplante, A R and Spiller, D E, 2002. Bench-scale and pilot plant testwork for gravity concentration circuit design, in Proceedings of the Mineral Processing Plant Design, Practice and Control Conference, pp 160-175 (Society for Mining, Metallurgy and Exploration: Littleton).
35. Laplante, A R and Gray, A H, 2005. Advances in gravity gold technology, in Advances in Gold Ore Processing, pp 280-306 (Elsevier BV: Amsterdam).
36. th Annual Meeting of the Canadian Mineral Processors, pp 51-64 (Canadian Institute of Mining and Metallurgy: Montreal).
37. Ofori-Sarpong, G and Amankwah, R K, 2011. Morphology of gold particles generated in different grinding environments: implications on particle separation, Mins Eng, 24:590-592.
38. Pitard, F F, 1993. Pierre Gy's Sampling Theory and Sampling Practice, 488 p (CRC Press: Boca Raton).
39. Pitard, F F, 2007. The in-situ nugget effect: a major component of the random term of a variogram, in Proceedings of the Third World Conference on Sampling and Blending 2007, pp 91-110 (Fundacao Luiz Englert: Porto Alegre).
40. Platten, I M and Dominy, S C, 2003. The occurrence of high-grade gold pockets in quartz reefs at the Gwynfynydd mine, Wales, United Kingdom: A geological explanation of the nugget effect, Explor Min Geol, 10:249-272.
41. Smee, B W and Stanley, C R, 2005. Sample preparation of nuggety samples: dispelling some myths about sample size and sampling errors, Explore, 126:21-27.
42. Subasinghe, G K N, 2007. Evaluating an alternative to the gravity recoverable gold (GRG) test, in Proceedings of the Ninth Mill Operators Conference 2007, pp 235-239 (The Australasian Institute of Mining and Metallurgy: Melbourne).
43. Wills, B A, 2007. Wills' Mineral Processing Technology, 444 p (Elsevier: Oxford).
44. Woodcock, F and Laplante, A R, 1993. A laboratory method for determining the amount of gravity recoverable gold, in Proceedings of the Randol Gold Forum 1993, pp 151-155 (Randol International Limited: Golden).