scholarly journals Application of magnetic separation and reverse anionic flotation to concentrate fine particles of iron ore with high sulfur content

Author(s):  
Fahimeh Dehghani ◽  
Rasoul Khosravi ◽  
Amir Pazoki ◽  
Moustapha Kebe ◽  
Reza Jahanian ◽  
...  
2018 ◽  
Vol 22 (2) ◽  
pp. 145-148
Author(s):  
Amir Pazoki ◽  
Reza Rashidi-Khabir ◽  
Reza Jahanian ◽  
Ali Pourbahaadini

The Band-e Narges deposit is located about 70 km northeast of the city of Badrud, northern Isfahan province. Band-E Narges ore deposit is mining for magnetite. To release valuable minerals, crushing and grinding implemented for separation ore from the gangue. Magnetic separation and flotation methods for upgrading magnetite iron ore were carried out in different experimental conditions with varied parameters. The particle size of the initial content was 74 microns for flotation, and 150 microns for magnetic separation. The initial samples, with the iron grade of 43.4% and sulfur of 1.9%, are individually subjected to upgrading by floatation and magnetic separation during which the affecting parameters for each method were optimized. The improvement in the optimal condition for magnetic separation culminated in 60.85% for the iron grade, 85.21% iron for recovery and 1.08% for sulfur content. The upgrading by floatation in the optimal mode produced 60.02% iron grade, 80.41% iron recovery and 0.95% sulfur content. To determine the best method for the pre-concentration stage of ore, the content gained from each technique passed reclining for grad improvement. The final content obtained from the magnetic separation of was undergone the floatation test yielded to a content with 64.3% iron grade, 77.15% iron recovery and 0.7% sulfur content. The use of magnetic separation as a pre-concentration stage for floatation method is proposed as an economical method for improving the grade of the iron and reduce the sulfur content and to avoid the high cost of grinding, which is costly part of processing procedures.


2013 ◽  
Vol 756-759 ◽  
pp. 76-79
Author(s):  
Peng Ding ◽  
Quan Jun Liu ◽  
Wen Hao Pang

Experimental investigation was conducted on an iron mine in Yunnan, with grade of 35.10% and sulfur content of 1.19%. Through the analysis of ore properties, comparison of single magnetic separation and magnetic-flotation two different process, finally determined magnetic-flotation separation process, obtained high-quality iron ore concentrate with grade of 66.89% and recovery of 76.55%, and sulfur content of 0.15%, achieving good classification effect.


2019 ◽  
Vol 493 ◽  
pp. 533-540 ◽  
Author(s):  
Johnny Muya Chabu ◽  
Ke Zeng ◽  
Wansong Chen ◽  
Abdulhadi Mustapha ◽  
Yajuan Li ◽  
...  

2015 ◽  
Vol 1094 ◽  
pp. 397-400
Author(s):  
Xian Xie ◽  
Zi Xuan Yang ◽  
Xiong Tong ◽  
Ji Yong Li

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.


2018 ◽  
Vol 56 (16) ◽  
pp. 1777-1781 ◽  
Author(s):  
Jessica A. Smith ◽  
Xiaofeng Wu ◽  
Neil G. Berry ◽  
Tom Hasell

2021 ◽  
pp. 81-86
Author(s):  
V. I. Grinenko ◽  
A. S. Opalev ◽  
P. V. Maevsky ◽  
I. V. Karpov

Author(s):  
Wu Liu ◽  
Jianfeng Shang ◽  
Hongsong Wang ◽  
Donghui Zhao ◽  
Yu Zou

Abstract The gathering and transportation pipeline known as Line 1 of Puguang gas field havs the characteristics of wet gathering and transportation containing high sulfur content, large drops and effusion in low-lying areas. In the process of one pigging operation on the site, the surge volume provided by the No. 1 separator in the master gas gathering station was not effectively utilized and the time intervals for the neighboring pipeline sections were too long. In this paper, we designed several pigging proposals. OLGA was applied to analyze the operating parameter changes for the gathering and transportation pipeline Line 1, which finally determined a reasonable pigging sequence. We designed and selected the "critical pigging proposal", which the time duration for the pigging operation of the seven pipeline sections was decreased to 16.91h. Guided by the "critical pigging proposal", the downstream pipeline sections will be challenged by the risks of ice blockage. The ground eddy device was improved in the article, for the purpose of draining effusions in low-lying areas in the Puguang gas field and controlling the slug flow. In addition, the application effects of the device were analyzed.


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