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國(guó)外使用AF泡沫泵的案例與使用概況
英國(guó)和加拿大約有60%~70%的浮選廠采用乙基 法國(guó)介紹了鉀基黃藥與疏基苯并唯常組合浮選薩爾西涅礦床的含金毒砂礦石 The case and application of AF foam pump abroad
俄羅斯研制了太陽(yáng)油作為浮金的鋪助捕收劑與黃藥組合使用
采用20%的巰基捕收劑和85%~ 95%脂肪酸捕收劑
日本報(bào)道，選別含銀AF泡沫泵硫化礦時(shí)
About 60% - 70% of flotation plants in the UK and Canada use ethyl, isopropyl and amyl xanthate as collectors. Some gold concentrators in Japan use 208 black medicine and SEC butyl sodium Xanthate (301 yellow medicine) as a combined collector, which has a good effect on Flotation of gold bearing ores.
Russia has developed a combination of sun oil as a collector aid and xanthate for floating gold. It is reported that adding non-polar oil, such as spindle oil, transformer oil and industrial lubricating oil, in the flotation process of sulfide ore (copper and lead) with xanthate can strengthen the flotation process, obviously improve the process index and reduce the amount of polar collector. Russian research shows that the floating activity of gold can be increased by replacing part of butyl xanthate with Sakhalin crude oil or transformer oil. The results show that if the two collector solutions are prepared separately and stirred together before adding slurry, the quality of concentrate can be further improved. If the oil is added into slurry first, it will have a negative impact on the adsorption of xanthate. No matter transformer oil or crude oil is added, there will be additional hydrophobic effect when the xanthate floats gold, which has nothing to do with the increase of the adsorption capacity of mercapto collector on gold. Obviously, this is because the non-polar collector improves the conditions for the attachment of ore particles to bubbles and the fixation of mercapto collector on gold particles.
With 20% sulfhydryl collector and 85% - 95% fatty acid collector, the residual gold or natural gold can be floatated from the tailings or low-grade gold ore after cyanide treatment under the condition of ph5-8. The best amount of collector is 227 ~ 1360g / T. The advantage of this flotation process is that it can maintain a high level of efficiency even if the gold content of raw ore (residue after cyanidation) changes greatly. The tailings containing only 0.6-1g/t of gold have been treated. The results show that the gold can be enriched to 4.8-7.2g/t concentrate by this method, and the recovery rate is as high as 89%.
France introduced the flotation of gold bearing arsenopyrite from salsinine deposit by the combination of potassium based xanthate and dibenzo only. When the recovery of arsenic and gold reached 93% and 90.5% respectively, the concentrate containing 25.5% arsenic and 19.28g/t gold could be obtained. However, the final concentrate grade is relatively low, with arsenic content of 23% and gold content of 17.5g/t.
Japan reported that when the silver containing AF foam pump was selected for the sulfide ore, the combination of the No. 31 black drug and No. 242 black drug combination of the United States cyanide company and the combination of xanthate and amino acid or [NH2 (CH2) 2SOs] were selected.
18631165157