Study on Comprehensive Recycling of an Ilmenite Ore Beneficiation Test

2013 ◽  
Vol 785-786 ◽  
pp. 1060-1065
Author(s):  
Rui Zhang ◽  
Zhao Hui Zhang ◽  
Ni Li
Keyword(s):  
Magnetic Separation ◽  
Mineral Processing ◽  
Grinding Process ◽  
Iron Recovery ◽  
Ilmenite Concentrate ◽  
Low Intensity

Ilmenite phase is complex in Shaanxi.There are mainly magnetite, limonite and ilmenite, and associated with extremely small amount of rutile. According to the occurrence iron and titanium in the ilmenite ore。Paper discussed comprehensive recycling of the ilmenite using wet low-intensity magnetic separation by stage grinding process . The results show that it obtains better mineral processing indexes。The productivity of ilmenite concentrate was 28.83%, the grade of iron in concentrate was 62.05%, the content of titanium was 13.11%, iron recovery was 61.73%, titanium recovery was 43.40%.

Experimental Study on the Mineral Processing of a High-Clay and Lean Hematite

2012 ◽  
Vol 550-553 ◽  
pp. 2831-2834
Author(s):  
Wei Zhi Wang ◽  
Qing Mei Jia ◽  
Chun Guang Yang
Keyword(s):  
Experimental Study ◽  
Magnetic Separation ◽  
Experimental Research ◽  
High Intensity ◽  
Mineral Processing ◽  
Shaking Table ◽  
Iron Recovery ◽  
Iron Concentrate ◽  
Second Stage ◽  
Low Intensity

The mineral processing experimental research was carried out on a high mud content lean hematite. The results showed that using the technological flowsheet of “stage grinding- low intensity magnetic separation for obtaining concentrate - high-intensity magnetic separation for discarding tailings-gravity separation(shaking table)”,a final iron concentrate with TFe grade of 65.89% ,yield of 19.35% and iron recovery of 52.32% from the raw ores with TFe grade of 24.07％ was obtained, with the first stage grinding size being 50% -200 mesh and the second stage,95% -200 mesh.

Experimental Research on Mineral Processing Technique of a Brazilian Specularite

2012 ◽  
Vol 535-537 ◽  
pp. 742-745
Author(s):  
Wei Zhi Wang ◽  
Qing Mei Jia ◽  
Chun Guang Yang
Keyword(s):  
Magnetic Field ◽  
Magnetic Separation ◽  
Processing Technique ◽  
Mineral Processing ◽  
Gravity Separation ◽  
Laboratory Research ◽  
High Grade ◽  
Iron Concentrate ◽  
Low Intensity ◽  
The Magnetic Field

Laboratory research on the mineral processing technique of a specularite ore from Baxi was performed, while the processes including gravity separation, low intensity magnetic separation(LIMS) -high intensity magnetic separation(HIMS)-gravity separation was adopted. The run-of-mine ore was milled till the -0.074 mm range accounts for 50% and treated through a LIMS – HIMS process, with the magnetic field strength of LIMS being 95.52 kA/m and HIMS,1.2T. As a result, an iron concentrate grading about 67.58% at a recovery of 96.21% can be obtained, which are rather good metallurgical performances. The iron concentrate with high grade also could be beneficiated by table separation, but its recovery is lower than it obtained from intensive LIMS – HIMS dressing.

Research on Classified Magnetic Separation of Oolitic Hematite from Guizhou Province

2013 ◽  
Vol 634-638 ◽  
pp. 3433-3436
Author(s):  
Wen Hui Chen ◽  
Qin Zhang ◽  
Zhi Hui Shen ◽  
Mao Jiang
Keyword(s):  
Magnetic Separation ◽  
Size Fraction ◽  
Guizhou Province ◽  
Iron Recovery ◽  
Low Intensity ◽  
The World ◽  
Refractory Ores ◽  
Hematite Ore ◽  
Oolitic Hematite Ore

Oolitic hematite is considered to be one of the most refractory ores in the world due to its ultra fine disseminated grain size and complex mineral composition. Various magnetic separation methods were conducted on the oolitic hematite ore samples from Guizhou Province. Because the TFe grades of each size fraction of the grinding products were different from each other, the beneficiation process of “classification – low intensity magnetic separation – high intensity magnetic separation” was finally adopted to guarantee the quality of iron concentrates. After the determined magnetic separation, the relatively good technical indexes are obtained. The TFe grade of iron concentrates is increased from 38.7% to 46.1%, and the iron recovery is 81.7%.

The Study on Microwave Magnetic Roasting Plus Magnetic Seperation and Acid Pickling to Enrich Nb of Low-Grade Niobium Minerals

2012 ◽  
Vol 182-183 ◽  
pp. 17-22 ◽  
Author(s):  
Jie Li ◽  
Jun Wang ◽  
Bao Wei Li ◽  
Lei Wang
Keyword(s):  
Particle Size ◽  
Magnetic Separation ◽  
Separation Process ◽  
Low Grade ◽  
Iron Recovery ◽  
Separation Effect ◽  
Acid Pickling ◽  
Low Intensity ◽  
Separation Result ◽  
Iron Grade

In present article, the low intensity magnetic separation process was studied for the low-grade niobium minerals by microwave magnetic roasting. The influence of magnetic density, particle size of grinding and dispersant addition on the magnetic separation effect of sinter ore with the best magnetisability was investigated emphatically. The results show that the iron recovery was decreased and the iron grade increased gradually with decreasing the magnetic density and particle size of grinding. The magnetic separation result of sinter ore was optimal under the magnetic density of 80KA / m and the grinding grain-size of 33 μm. Fine grinding can effectively make Fe separated from Nb, especially when the dispersant(industrial alcohol) was used in the process of magnetic separation , resulting in the improvement of the grade of iron from 57.2% to 60.5% and enrichment of Nb in the tailing ore(the grade of Nb was 5.01%). After the acid pickling of tailing ore containing Nb, the grade of Nb in the extract was improved to 12.36%, which was enriched four times more than that of low-grade niobium ore before microwave magnetic roasting.

Experimental Research on the Iron Separation from an Ultra Poor Iron Ore

2012 ◽  
Vol 535-537 ◽  
pp. 746-749
Author(s):  
Wei Zhi Wang ◽  
Li Ping Chen ◽  
Chun Guang Yang
Keyword(s):  
Magnetic Separation ◽  
Iron Ore ◽  
Low Grade ◽  
Iron Recovery ◽  
Magnetic Separator ◽  
Iron Concentrate ◽  
Second Stage ◽  
Low Intensity ◽  
Two Stages ◽  
Titanium Magnetite

Test was made on separating iron from a ultra-low-grade vanadium titanium magnetite ore by a process of tailing discarding at a coarser size，staged grinding and staged low intensity magnetic separation. The results show that when the raw ore is treated by permanent dry magnetic separator with low intensity magnetic separation at 12～0 mm size，qualified tailings of about 20% yield can be discarded．The coarse concentrate is grounded in two stages. With the first stage grinding size being 45% -200 mesh and the second stage，75% -200 mesh，and then treated by two stage low intensity magnetic separation．As a result，an iron concentrate with a TFe grade of 65.80%and an iron recovery of 47.74%can be achieved．

Experimental Studies on a Mineral Containing Titanium in Baoding Area

2013 ◽  
Vol 826 ◽  
pp. 34-37 ◽  
Author(s):  
Guo Zhen Liu ◽  
Shu Juan Dai ◽  
Li Mei Bai ◽  
Yu Xin Ma ◽  
Yong Zhang
Keyword(s):  
Magnetic Separation ◽  
High Intensity ◽  
Ph Value ◽  
Experimental Studies ◽  
Mineral Processing ◽  
Shaking Table ◽  
Gravity Concentration

The main elements can be recovered for mineral processing in a mineral containing titanium of Baoding area were Ti, Fe and V, and the elements in the main gangue minerals were Si and Al. Gravity concentration, gravity concentration-high intensity magnetic separation and gravity concentration-flotation tests were performed on the ore sample respectively. The results showed that, in the test of shaking table, when the grinding fineness was -0.074mm 93%, the productivity of concentrate can reach 32.24%; when grinding fineness was -0.074mm 93%, after gravity concentration-magnetic separation, 30.25% of concentrate productivity can be attained; when the grinding fineness was -0.074mm 85%, after gravity concentration-flotation, the productivity of concentrate was 3.31%. Maybe it's the condition of the tests wasn't controlled well, especially adjusting pH value in the flotation stage, it's hard to control, so the results were not very good.

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.

Research on Exploration of Mineral Processing for a Iron Ore

2015 ◽  
Vol 1094 ◽  
pp. 397-400
Author(s):  
Xian Xie ◽  
Zi Xuan Yang ◽  
Xiong Tong ◽  
Ji Yong Li
Keyword(s):  
Magnetic Separation ◽  
Calcium Oxide ◽  
Iron Ore ◽  
Mineral Processing ◽  
Low Grade ◽  
Iron Minerals ◽  
Iron Mineral ◽  
Ore Minerals ◽  
Separation Test

Iron ore minerals are mainly silicate-type iron minerals in raw ore, and its distribution rate was 51.93%; followed by magnetic iron, and its distribution rate was 36.81%; content and distribution rate of other minerals was very low; element grade of iron, phosphorus, sulfur, silica were 11.90%, 0.043%, 0.013% and 45.23%, the main gangue were silica and calcium oxide, recyclable iron minerals mainly is magnetic iron mineral. Due to the grade of iron of raw ore and the amounts of optional magnetite was relatively little, in order to investigate the optional of low-grade ore, weak magnetic separation test and weak magnetic separation tailings-strong magnetic separation test were put into effect.

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