Experimental Study on Purification of Magnesite Ore in Liaoning Province

2013 ◽  
Vol 826 ◽  
pp. 48-52
Author(s):  
Jia Hong Han ◽  
Xiao An Li ◽  
Shu Juan Dai ◽  
Zhi You Wang ◽  
Lian Tao Yu
Keyword(s):  
Experimental Study ◽  
Hydrochloric Acid ◽  
Sodium Silicate ◽  
Sodium Hexametaphosphate ◽  
Liaoning Province ◽  
Low Grade ◽  
Reverse Flotation ◽  
Flotation Process ◽  
Mineral Flotation ◽  
Concentrate Grade

A region of liaoning low-grade magnesite ore products mainly for magnesite ,the gangue minerals are mainly hematite,calcite,chlorite,quartz,etc.This experimental using a roughing secondary selected single reverse flotation process,with hydrochloric acid, sodium silicate,sodium hexametaphosphate for adjustment,LKD for collecting agent,the ore are studied,in the conditions of mine ore SiO2 content is 0.85%,MgO content is 95.53%,Fe2O3 content is 0.82%,obtain concentrate SiO2 content is 0.17%,Fe2O3 content is 0.69%,concentrate grade (MgO content) is 97.31%,the recovery is 78.86% of the experimental index.The experimental of related mineral flotation purification provide identification and reference.

Experimental Research on Modifier Optimization of Flotation Process in a Molybdenum Ore in Inner Mongolia

2011 ◽  
Vol 291-294 ◽  
pp. 3372-3376
Author(s):  
Lin Li ◽  
Xian Jun Lu ◽  
Jun Qiu
Keyword(s):  
Sodium Silicate ◽  
Experimental Research ◽  
Inner Mongolia ◽  
Sodium Hexametaphosphate ◽  
Flotation Process ◽  
Dispersing Agent ◽  
Better Than

The research has conducted a experimental research on the issues in modifier of flotation process in a molybdenum ore concentrating mill in Inner Mongolia. The results show that: when the raw ore is grinded into 61% -200 meshes, which is the same to the site production ore, the sorting index is optimum in neutral magma condition; and for dispersing agent, the sorting effect of sodium silicate is better than sodium hexametaphosphate, and the confirmed sufficient quality of sodium silicate is 300g/t.

Process Mineralogy and Concentrating of Hematite-Limonite Ore in Southern China

2011 ◽  
Vol 201-203 ◽  
pp. 2749-2752
Author(s):  
Shu Xian Liu ◽  
Li Li Shen ◽  
Jin Xia Zhang
Keyword(s):  
Southern China ◽  
Close Association ◽  
Separation Process ◽  
Reverse Flotation ◽  
Iron Recovery ◽  
Flotation Process ◽  
Iron Concentrate ◽  
Process Mineralogy ◽  
Concentrate Grade ◽  
Reverse Floatation

The grade of the crude hematite-limonite ore is 39.79%. The main metallic minerals are hematite-limonite. Hematite has disseminated structure distributed in the gangue. Limonite was inlayed as stars in hematite. Due to their fine dissemination and close association with gangue minerals, the hematite and limonite particles are hard to be fully liberated, bringing difficulty in their separation. Staged grinding-separation process consisting of high intensity magnetic separation and reverse floatation wag adopted in the beneficiation test on the regionally representative hematite—limonite ore resource. At a grind of 70.0% -200 mesh for the primary grinding and 98.7% -200 mesh for the secondary grinding, the final iron concentrate grade 58.26% and having an iron recovery of 8.33% can be achieved after reverse flotation process test on magnetic concentrate.

Experimental Study on Floatation of Scheelite Ore of Jiangxi

2013 ◽  
Vol 868 ◽  
pp. 429-432 ◽  
Author(s):  
Dan Dan Wu ◽  
Shu Ming Wen ◽  
Jing Yang ◽  
Jiu Shuai Deng ◽  
Jian Liu
Keyword(s):  
Experimental Study ◽  
Sodium Silicate ◽  
Sodium Carbonate ◽  
Lead Nitrate ◽  
High Quality ◽  
Flotation Process ◽  
And Tungsten

In this study, according to the characteristics of scheelite in run-of-mine, the scheelite was concentrated by adopting the full flotation process with sodium carbonate as regulator agent, sodium silicate as inhibitor for gangue minerals, lead nitrate as activator and ZL pharmacy as collector. 6.15% of the coarse scheelite concentration with tungsten recovery of 96.18% was obtained from the raw ores with grade of 0.86%. The concentration of rough tungsten by heating, by which the high-quality scheelite with tungsten of 62.31% and tungsten concentrate recovery of 93.53% was obtained.

Experimental Study on Flotation of Copper Sulfides in Yunnan Province

2014 ◽  
Vol 1010-1012 ◽  
pp. 1630-1635
Author(s):  
Jian Gang Ku ◽  
Hui Huang Chen ◽  
Wen Yuan Liu
Keyword(s):  
Experimental Study ◽  
Yunnan Province ◽  
Industrial Applications ◽  
Low Grade ◽  
Copper Ore ◽  
Copper Sulfides ◽  
Fine Grained ◽  
Concentrate Grade ◽  
Combination Mode ◽  
Grade Index

The copper ore, which has fine-grained nature and differences in the degree of mineral dissemination, is a kind of low grade sulfide minerals. Tests indicate that not only the grinding fineness but also the combination mode of depressants is one of the most important factors to improve the concentrate grade index. Additionally, according to tests conducted with dosage of lime, the rougher flotation should be operated at a pH of 11. Furthermore, all the depressants used were effective to increase the concentrate grade. By the closed-circuit micro-flotation experiment, satisfied grade index (18.7%Cu with 81% recovery) of the final concentrate was achieved, which could provide reference in industrial applications.

Beneficiation of Ultrafine Cassiterite from a Tin Tailings by Flotation

2012 ◽  
Vol 616-618 ◽  
pp. 643-648
Author(s):  
Yong Cheng Zhou ◽  
Xiong Tong ◽  
Xiao Wang ◽  
Zheng Bin Deng ◽  
Xian Xie ◽  
...  
Keyword(s):  
Large Scale ◽  
Fine Particles ◽  
Lead Nitrate ◽  
Laboratory Scale ◽  
Sodium Hexametaphosphate ◽  
Low Grade ◽  
Flotation Process ◽  
Salicylhydroxamic Acid ◽  
Pine Oil

With the continuous depletion of primary tin ores, tin tailings has become an important source for the production of tin; however, the large-scale utilization of tin tailings is disappointedly scarce, due to its leanness in valuable minerals and insufficient methods available for processing such low-grade tailings. A flotation process has been used on a laboratory scale to investigate the effects of various reagents such as salicylhydroxamic acid, lead nitrate, sodium hexametaphosphate and pine oil on tin recovery at neutral pulp. Because cassiterite is friable and a large amount of fines and slimes were generated, usually de-sliming is used to prevent slime coating and to increase the recovery of tin. However, analyses have shown that fine particles in the sample mostly contain tin, thus de-sliming was not suggested. By applying the process, ultrafine cassiterite could be efficiently recovered from the slime tailings, and the concentrate assaying 1.82% Sn with a recovery of 76.90% was obtained.

Study on Industrialization of Mid-Low Grade Collophanite Flotation in Yunnan Province

2013 ◽  
Vol 830 ◽  
pp. 431-434
Author(s):  
Jun Bo Liu ◽  
Quan Jun Liu ◽  
Hong Xiao ◽  
Rong Dong Deng
Keyword(s):  
Laboratory Experiment ◽  
Yunnan Province ◽  
Low Grade ◽  
Reverse Flotation ◽  
Environment Effect ◽  
Flotation Process

Efficient reagents were used in the direct-reverse flotation process to process the mid-low grade Si-Ca collophanite. We got nice results in the laboratory experiment and expanding test. These results showed that our study was successful in technology, economy and environment effect. It also offers support for building flotation mill in future.

Experimental Study on Flotation of a Yunnan Sulfide a Low Grade Copper Ore

2013 ◽  
Vol 734-737 ◽  
pp. 935-940
Author(s):  
Ju Wang ◽  
Hui Xin Dai ◽  
Yan Hua Guo
Keyword(s):  
Experimental Study ◽  
Copper Sulfide ◽  
Closed Circuit ◽  
Low Grade ◽  
Copper Ore ◽  
Concentrate Grade ◽  
Ore Grade

Based on a single Yunnan copper sulfide, we conducted a series of flotation test research. The results indicate that the raw ore grade is 0.78%,by closed circuit process of 1stage of roughing, 1stage of scavenging and 2 stages of cleaning flotation, 14.85% concentrate grade with 92.49% recovery can be obtained, and the index is ideal.

Research of the Low Grade Fluorite Flotation Orthogonal Test

2013 ◽  
Vol 734-737 ◽  
pp. 1068-1072 ◽  
Author(s):  
Jun Long Yang ◽  
Quan Jun Liu ◽  
Yan Hua Guo ◽  
Hong Xiao ◽  
Mei Guang Jiang
Keyword(s):  
Oleic Acid ◽  
Sodium Silicate ◽  
Sodium Carbonate ◽  
Aluminum Sulfate ◽  
Orthogonal Test ◽  
Closed Circuit ◽  
Sodium Hexametaphosphate ◽  
Low Grade ◽  
Acid Dosage

The run-of-mine ore samples which have been used in the study were taken from a fluorite ore. The grade of fluorite was 28.65%. From the condition test, the optimal grinding fineness was-0.074mm accounted for 79.5%. The final optimal reagent system was A1B3C3D3E3 with comprehensive consideration. That is, sodium carbonate was 2000 g/t, sodium silicate was 1000 g/t, aluminum sulfate was 200 g/t, sodium hexametaphosphate usage was 1000 g/t, oleic acid dosage for 2000 g/t. Through the closed-circuit test of flotation, the final index was the fluorite grade of the concentrate was 97.69% and the recovery was 48.07%.

Study on Different Depressants to Influence on Chalcopyrite Flotation

2012 ◽  
Vol 454 ◽  
pp. 337-341
Author(s):  
Li Mei Bai ◽  
Yue Xin Han ◽  
Zhi Tao Yuan ◽  
Guang Zhao Li
Keyword(s):  
Sodium Silicate ◽  
Experimental Results ◽  
Sodium Hexametaphosphate ◽  
Dosage Range ◽  
Concentrate Grade

Depressants used in flotation can inhibit floatable gangue minerals to improve concentrate grade. In this paper, four different commonly used depressants were adopted in order to investigate the effect of depressants on chalcopyrite index and to investigate their inhibition effects on chalcopyrite flotation.The experimental results indicate that, in the flotation system of natural pH of pulp, mixed reagent of xanthate and aerofloat, sodium hexametaphosphate has the best effect on chalcopyrite separation, and the dosage range is 1.5-1.5kg/t, it can improve the concentrate recovery as well as concentrate grade. In the range of 0.5-2.5kg/t, sodium silicate can improve the concentrate grade and concentrate recovery, but the amplitude is small. CMC can improve the concentrate grade while lower the concentrate recovery. The effects of dextrin on concentrate grade and concentrate recovery is not so obvious.

Contrast Testing Study on Different Flotation Processes for a Medium-and-Low Grade Collophanite

2015 ◽  
Vol 1089 ◽  
pp. 59-64
Author(s):  
Ren Ju Cheng ◽  
Cheng Xiu Li ◽  
Fei Yan Liu
Keyword(s):  
Low Grade ◽  
Reverse Flotation ◽  
Carbonate Minerals ◽  
High Quality ◽  
Flotation Process ◽  
Phosphate Concentrate

According to the properties of a medium-and-low grade collophanite, a contrast testing study was conducted on the basis of three kinds of flotation process. The result suggests that it is difficult to obtain high-quality phosphate concentrate from removing carbonate minerals only by the use of reverse flotation process. In contrast, with the use of direct-reverse flotation process and double reverse flotation process, the separation of phosphorus minerals and gangue minerals in the ore can be realized effectively, as the result, the P2O5 grades of phosphorus concentrate are 32.29% and 31.26%, respectively. Considering the above factors, we recommend direct-reverse flotation process as the method to deal with the medium-and-low grade refractory collophanite.

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