The Application and Development of Microbubble Column Flotation Technology in China

2010 ◽  
Vol 136 ◽  
pp. 194-201 ◽  
Author(s):  
Yong Tian Wang
Keyword(s):  
Mineral Processing ◽  
Dense Medium ◽  
Column Flotation ◽  
Flotation Process ◽  
Fine Coal ◽  
Column Type ◽  
Flotation Columns ◽  
Efficient Column ◽  
Coal Slime ◽  
High Ash Coal

Since the early 1980s, great progress has been made in microbubble column flotation technology. As one of the important mineral processing methods, the application and development of this technology in China are summarized in this paper from four respects. Firstly, a patented cyclone- static microbubble separation method was proposed to overcome the notable problems mentioned in the previous flotation columns. Secondly, microbuble column flotation was introduced to separate the high ash as well hard-to-separate coal slime generated from dense medium processes. The characteristics of the microbubble column, and the flotation process for fine coal and the high ash coal separation was analyzed. Thirdly, the application of microbubble column flotation in China was detailed introduced, especially the characteristics of series microbubble column flotation equipment, and efficient column type coal slime separation crafts were discussed. The application of microbubble column flotation particularly in low ash content coal preparation, and discarded coal slime processing technology were presented. Finally, microbubble column flotation has been extended to non-coal mineral processing, such as magnetite concentrate upgrading (concentration iron and removing silicon), sulfide copper mine separation, white tungsten flotation, etc., the related research was briefly introduced in this paper as well.

The Flotation Process with High Intensity Conditioning and Cleaning for Fine Coal

2014 ◽  
Vol 1010-1012 ◽  
pp. 1636-1639 ◽  
Author(s):  
Ji Hui Li ◽  
Li Qiang Ma ◽  
Yan Zhao Li ◽  
Wen Jing Li ◽  
Jian Wei Yue
Keyword(s):  
High Intensity ◽  
Coal Sample ◽  
Ash Content ◽  
Clean Coal ◽  
Flotation Reagents ◽  
Flotation Process ◽  
Fine Coal ◽  
Percentage Points ◽  
Coal Slime

The properties analyzing of flotation feed sample told that this fine coal sample is high-ash and hard-to-float coal slime. The ash reduction comparison of the step-by-step release flotation test with high intensity conditioning (HIC) or not, and the comparison of flotation test with HIC and adding depressant were made. The results showed that HIC can significantly improve the flotation effect for high-ash and hard-to-float coal slime. Comparing with the traditional step-by-step flotation process, if it meets the demand of ash content is 10.00% and 8.00%, the clean coal yield with HIC will increase 18 and 29 percentage points respectively; comparing with the effect of floatation adding depressant, HIC has more help to reduce the ash content and increase the yield of clean coal. In addition, HIC will save a lot of flotation reagents.

Exploratory Study of Gold Recycle from the Tailing of All-Sliming Cyanidation CIP

2014 ◽  
Vol 878 ◽  
pp. 348-352
Author(s):  
Shuai Xing Shi ◽  
Deng Feng Han ◽  
Ming Tan ◽  
Qiang Li
Keyword(s):  
Organic Carbon ◽  
Negative Influence ◽  
Industrial Test ◽  
Gansu Province ◽  
Column Flotation ◽  
Flotation Process ◽  
Flotation Column ◽  
Metallic Mineral ◽  
Flotation Columns ◽  
Leaching Residue

Gold ore is processed by all-sliming cyanidation CIP (carbon in pulp) at a gold mine in Gansu province of China. The leaching residue (tailing) Au grade is about 0.52 g/t, which is much valuable to be recovered. Mineralogical analysis shows that the loss of gold in leaching residue is mainly organic carbon adsorption gold and inclusion gold, accounting for 45.55% and 54.45% respectively. The inclusion gold is mostly wrapped by gangue and metallic mineral separately, accounting for 35.56% and 18.89%. Excluding the gold in gangue, both the gold adsorbed by organic carbon and wrapped in metallic mineral could be recycled by flotation process. Study has been carried out for recovering gold in cyanide residue by solely column flotation apparatus. During the semi-industrial test, B and E type sparger were adopted in flotation columns to evaluate their influence on process performance. To further improve metallurgy technology the ultrasonic device was introduced into flotation column tank. The results showed that ultrasonic pretreatment is negative influence, and the E type sparger is better than B type sparger. The concentrate Au grade is up to 10.14g/t, and34.3% of Au lost in tailing was recovered while feed grade being 0.52g/t. The column flotation process was proven being a proper way to recycle gold from the tailing of all-sliming cyanidation CIP.

A Study of the Rejects Recovery in a Column Flotation

2005 ◽  
Vol 498-499 ◽  
pp. 278-284 ◽  
Author(s):  
M.S. Oliveira ◽  
D.R. Cioqueta ◽  
M. Sallum ◽  
R. Miro ◽  
R.C. Guimarães ◽  
...  
Keyword(s):  
Column Flotation ◽  
Flotation Process ◽  
Rational Use ◽  
Flotation Column ◽  
Different Types ◽  
Flotation Columns ◽  
Flotation Technique ◽  
Useful Life ◽  
Discontinuous Mode ◽  
Rice Oil

Performing of the flotation process in columns started in the year 1981. Since then, this new flotation technique became usual in many countries, including Brazil, where nowadays flotation columns are installed in plants for iron and phosphate ore concentration. Sees the need of a rational use of the phosphate of Barreiro, Araxá (MG), whose medium useful life is esteemed in 30 years, Federal University of Uberlândia in partnership with Bunge Fertilizers looks for in this work to develop conditions for use of the rejects of the flotation process. A laboratory flotation column was operated in discontinuous mode in order to examine the mixture of two different types of collectors, ore conditioning time and reagents dosages. Contents between 22 and 29 % P2O5 were obtained and Apatite recovery varied in the range of 18 to 58 wt %. The results shows that the use of mixture of the synthetic reagent KE and the rice oil soap provided an increase considerable in the selectivity of the concentrate.

Mineral Processing Technology Study on a Lean Hematite Ore with Finely-Disseminated Minerals

2013 ◽  
Vol 303-306 ◽  
pp. 2473-2476
Author(s):  
Wei Zhi Wang ◽  
Li Hui Zhou ◽  
Chun Guang Yang
Keyword(s):  
Mineral Processing ◽  
Low Grade ◽  
Iron Recovery ◽  
Technology Study ◽  
Complex Composition ◽  
Flotation Process ◽  
Iron Concentrate ◽  
Second Stage ◽  
Fine Grain ◽  
Hematite Ore

The mineral processing experimental research was carried out on the hematite bearing characteristics of low grade, fine grain,complex composition. The results showed that using the technological flowsheet of “stage grinding- low intensity magnetic separation”, the iron concentrate with recovery of 36.56% and grade of 65.85% Fe can be obtained. And the iron concentrate with recovery of 17.23% and grade of 63.53% Fe can be obtained by “stage grinding-HIMS process-reverse flotation” process. The final iron concentrate with TFe grade of 65.10%,yield of 19.19% and total iron recovery of 53.79% from the raw ores with TFe grade of 23.41％ was obtained, with the first stage grinding size being 55% -0.074mm and the second stage,93% -0.074mm.

scholarly journals Study on the Fluidization Quality Characterization Method and Process Intensification of Fine Coal Separation in a Vibrated Dense Medium Fluidized Bed

ACS Omega ◽  
2021 ◽  
Author(s):  
Enhui Zhou ◽  
Yadong Shan ◽  
Linhai Li ◽  
Fanshun Shen ◽  
Enkhsaruul Byambajav ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Process Intensification ◽  
Dense Medium ◽  
Fine Coal

Dynamic characterization of column flotation process laboratory case study

1999 ◽  
Vol 12 (11) ◽  
pp. 1339-1346 ◽  
Author(s):  
T. Carvalho ◽  
F. Durão ◽  
C. Fernandes
Keyword(s):  
Column Flotation ◽  
Dynamic Characterization ◽  
Flotation Process

Concept of Seafloor Mineral Processing for Development of Seafloor Massive Sulfides

2011 ◽  
Author(s):  
Yasuharu Nakajima ◽  
Shotaro Uto ◽  
Shigeo Kanada ◽  
Joji Yamamoto ◽  
Ichihiko Takahashi ◽  
...  
Keyword(s):  
High Pressures ◽  
Pure Water ◽  
Analytical Data ◽  
Mineral Resources ◽  
Mineral Processing ◽  
Column Flotation ◽  
Metallic Elements ◽  
Massive Sulfides ◽  
Chemical Reagents ◽  
Froth Layer

Seafloor Massive Sulfides (SMS), which were formed by deposition of precipitates from hydrothermal fluids vented from seafloor, is one of unconventional mineral resources beneath deep seafloors in the world. The authors have proposed the concept of seafloor mineral processing for development of SMS, where useful minerals included in SMS ores are separated on seafloor to be lifted while the remaining gangue is disposed on seafloor in appropriate ways. To apply column flotation, one of conventional methods in mineral processing, to seafloor mineral processing, the authors carried out simulating experiments of column flotation on deep seafloor using ores including copper, iron, lead and zinc as metallic elements. Prior to the experiments at high pressures, preparatory experiments at the atmospheric pressure were carried out to find out the optimum condition of the properties of pulp, a mixture of feed ore, water and chemical reagents. In flotation experiments at high pressures, formation and overflow of froth layer by bubbling were observed at 1MPa in both of pulps with pure water and artificial seawater. The analytical data showed that the concentration of metallic elements such as copper and zinc in the concentrates recovered from the experiments was higher than that in the feed ores while the concentration of silicon and calcium, which are assigned to gangue, in the concentrates was lower than that in the feed ores. These results suggest that column flotation can be applied to operation on seafloor.

scholarly journals Erratum to: Effect of various gases on the column flotation of fine coal

1998 ◽  
Vol 15 (4) ◽  
pp. 65-65
Author(s):  
A. Raichur ◽  
X. H. Wang ◽  
B. K. Parekh
Keyword(s):  
Column Flotation ◽  
Fine Coal

Dense-Medium Cycloning of Fine Coal Refuse Material

2003 ◽  
Vol 23 (5-6) ◽  
pp. 267-284 ◽  
Author(s):  
Michael L. Turek ◽  
Mark S. Klima
Keyword(s):  
Dense Medium ◽  
Fine Coal ◽  
Coal Refuse
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