Nigeria is rich is solid mineral resources, such as: Kaolin, gypsum, mica, clay, tantalite, iron ore, gemstone, silica sand.
Read More
Recycling concrete &building rubble is not only able to bring profit to investors, but also good for environment protection.
Read More
By absorbing the advanced technology from the world, we researched and designed PF series impact crusher.…
Read More
Base on the plentiful experience of producing and marketing of impact crusher, Sofol R&D institution…
Read More
Adopting technology from the world, PY Series spring cone crusher has an excellent performance in secondary…
Read More
The vibrating screen is a kind of sieving equipment of international advanced level, developed by our…
Read More
Sofol VSI Series vertical shaft impact crusher is designed by reputed German expert of Sofol and every…
Read More
The cleaning and efficient disposal of eggshell waste presents many challenges. Reduction roasting of high-phosphorus oolitic iron ore (HPOIO) requires the addition of expensive alkali metal compounds to enhance dephosphorization. In this paper, the eggshell waste from the catering industry was used to replace traditional dephosphorization agents, which not …
Details
iron ore using bacteria, giving a yield of above 80% within 30-45 days. In countries having high phosphorus-iron ore, the highlighted dephosphorization process is capable of providing a reliable technical support; giving good dephosphorization at low cost. Phosphorus removal using some biological processes have
Details
In order to make better use of sinter return ore and iron oxide scale to achieve effective pre-dephosphorization of molten iron, the effects of final slag morphology, mineral phase structure and ...
Details
Some of the previous reports on dephosphorization of iron ore are summarized in Table S4 in the Supporting Information. The other methods listed in the table (reduction vaporization, electrothermal reduction vaporization, and microwave method) require high temperatures of ≥500 °C. In addition, Si and Al are not removed from iron ore.
Details
Decreased phosphorus content in iron-ore concentrate can be received by the method of hydrometallurgy (desalinization of phosphorus by mineral acid). On theexperimental base of OJSC VNIIMT, a laboratory research was carried out regarding iron ore dephosphorization; as a result maximum possible content of phosphorus was obtained in a final product.
Details
domestic low grade iron ores for the iron and steel plant in China, as China has a large deposit of high phosphorous iron ore with existing reserve of 7.45 billion tons which is unused in any …
Details
The results indicated that when high-phosphorus iron ore concentrates containing 54.92 mass % iron and 0.76 mass % phosphorus were directly processed through acid leaching, iron ore concentrates containing 55.74 mass% iron and 0.33 mass % phosphorus with an iron recovery of 84.64 % and dephosphorization of 63.79 % were obtained.
Details
Dephosphorization process of high phosphorus oolitic iron ore by acid leaching and leaching kinetics were investigated in the paper. The high phosphorus ore samples (51%T.Fe, 0.52%P) used in this work were analysed by SEM-EDS and XRD, which showed their oolitic structure and mineral phases. Among the three kinds of acids (H2SO4, HCl and HNO3), sulfuric acid was …
Details
Deep dephosphorization of high‑phosphorus oolitic iron ore (HPOIO) is extremely difficult because of its refractory characteristics. A new approach for simultaneous iron recovery and dephosphorization from HPOIO by oxidation roasting–gas-based reduction (ORGR) and magnetic separation process was developed.The underlying mechanism was investigated …
Details
Chen, C.; Wu, S. Calcium Carbonate as Dephosphorization Agent in Direct Reduction Roasting of High-Phosphorus Oolitic Iron Ore: Reaction Behavior, Iron Recovery, and Dephosphorization Mechanism. Minerals 2024, 14, 1023.
Details
A "concentrate" in the form of "pellet feed", fine ore for pelletizing, obtained by roastingfollowed by magnetic separation and acid leaching : Benificiationof iron: Fe = 63 –65 % Maximum Dephosphorization: P = 0,20% Silica& Alumina: SiO2 about 4%, Al2O3 about 4% This concentrate can be used by blending with rich imported ore
Details
In China, such high-phosphorus iron ore account for about 20 % of total resource of iron ore [1]. Dephosphorization of high-phosphorus iron ore has been studied worldwide for several decades. Many efforts have been devoted to physical beneficiation and chem-ical leaching methods of high-phosphorus iron ore [2–5]. However, the phosphate
Details
The present study of phosphorus removal from an unroasted iron ore via alkaline leaching method examined the possibility of dephosphorization from goethite ore at low temperature. The iron ore concentrate used in this study is an oolitic type of iron ore consisting primarily of goethite, in which phosphorus does not form a discrete mineral ...
Details
The corresponding dephosphorization and iron metallization are 31.61% and 96.35%, respectively. ... The iron ore concentrate used in this study is an oolitic type of iron ore consisting primarily ...
Details
A new iron recovery and dephosphorization approach from unroasted high-phosphorus oolitic hematite ore via a facile chemical beneficiation process ... and 61% of SiO …
Details
Brown iron ore constitutes about 13% of the global ore reserves and is widespread throughout the world. Brown iron ore is characterized by a significant content of harmful phosphorus (0.7 to 3.0%), which is typically present in the lattice of the main iron ore component in a chemically bound form. Based on the case study of the gravity-magnetic …
Details
Buy Dephosphorization of Agbaja Iron Ore by Hydrometallurgical Method on Amazon FREE SHIPPING on qualified orders Dephosphorization of Agbaja Iron Ore by Hydrometallurgical Method: Mary O., Onwubuiko: 9783659806551: Books
Details
To provide a new method for the dephosphorization of high-phosphorus oolitic iron ore (HPOIO) by reduction roasting, the feasibility of the high-efficiency separation of iron and phosphorus by reduction roasting and magnetic separation process (RRMSP) without a dephosphorization agent was studied.
Details
In China, high-phosphorus iron ore is known as "Ningxiang-type iron ore", which is widely distributed in Hubei, Hunan, Jiangxi, Guizhou, Yunnan, Sichuan, Chongqing, and Gansu. For nearly a century, high-phosphorus iron ore has remained undeveloped globally. Currently, the main dephosphorization methods are as follows:
Details
A PROJECT DISSERTATION SUBMITTED TO THE SCHOOL OF POSTGRADUATE STUDIES, AHMADU BELLO UNIVERSITY, ZARIA. IN PARTIAL FULFILMENT FOR THE AWARD OF A DOCTOR OF PHILOSOPHY (Ph.D) IN METALLURGICAL AND MATERIALS ENGINEERING. DEPARTMENT OF METALLURGICAL …
Details
High-phosphorus (P) iron ore, particularly oolitic hematite, has remained unexploited due to technological and cost limitations in mining. Effectively developing this ore involves not just utilizing its iron content but crucially extracting P to reduce exploitation costs. Here, we applied a direct reduction-magnetic separation process to recover these valuable …
Details
With the depletion of high-quality iron ore resources, high-phosphorus oolitic hematite (HPOH) has attracted great attention due to its large reserve and relatively high iron …
Details
Current Status of Iron Ore Dephosphorization and Desulphurization Process and a New Method for Simultaneous Removal[J]. Multipurpose Utilization of Mineral Resources, 2020, (3): 56-62,32. doi: 10.3969/j.issn.1000-6532.2020.03.009. Citation: Ding Zhan, Wen Shuming, Li Chunlong, Yu Pan, Wu Meng, Bai Shaojun. Current Status of Iron Ore ...
Details
Iron ore in Australia is predicted to increase in its phosphorus content in the near future, which is detrimental to properties of steel product. Steelmakers are concerned by the content of …
Details
An attempt has been made in this study to optimize the process variables for the dephosphorization of iron ore using nitric acid. Standard central composite design with 2 full factorial was used to develop the model. The model was optimized using
Details
High-phosphorus iron ore is traditionally dephosphorized by chemical process with inorganic acids. However, this process is not recommended nowadays because of its high cost and consequent …
Details
Biodephosphorization of Iron Ore using Acidothiobacillus ferrooxidans. Chime T.O. 1, Menkiti M.C.*2, Onukwuli O.D.2 . ... crack hence the need for dephosphorization. In the last eight years, the situation of iron ore markets has changed dramatically due to an increase in the world
Details
The flotation dephosphorization of iron ore mainly relies on the differences in physical and chemical properties of mineral surfaces, and the addition of specific flotation reagents to make the target mineral surface hydrophobic. After air is introduced into the flotation machine to form bubbles, hydrophobic mineral particles will attach to the ...
Details
proven Nigerian iron ore deposit with phosphorus content in the range of 1.4-2.0%. In this study, dephosphorization of Agbaja iron ore using three acids and in different combinations were investigated. The design of experiment for the valuation of interactive factorial effects on phosphorus removal was also investigated.
Details
Deep dephosphorization of high‑phosphorus oolitic iron ore (HPOIO) is extremely difficult because of its refractory characteristics. A new approach for simultaneous iron …
Details
Oolitic brown iron ores are of great economic importance because of the vast reserves that exist in the world. However, their high phosphorus content has limited their use in metallurgy. Exciting enrichment methods are essentially unable to decrease the phosphorus content in such ore, since the phosphorus is present in embedded form as emulsions, without …
Details
Beneficiation and dephosphorization of refractory oolitic hematite ore are investigated in this paper. It is shown that single magnetic separation, gravity separation or flotation is unable to recover iron effectively from the ore due to the complex mineralogy. The joint separation by spiral chute-shaking table shows a prospect for the treatment of the ore. An …
Details
Dephosphorization, Agbaja Iron Ore, Central Composite Design (CCD) Response Surface Methodology (RSM), Concentration and Particle Size. Abstract. The purpose of this research work is to determine the optimal factor combinations for dephosphorization of a Nigerian Agbaja iron deposit –the largest inferred deposit of about 1.250 billion
Details
Owing to the growing shortage of high-quality iron ore, the utilization of high-phosphorus iron ore has become an inevitable resource strategy in the ironmaking and …
Details
With the iron ore resource of easy processing decreased, a large amount of refractory iron ore has been mined. ... The method can efficiently extract iron and …
Details
Iron ore containing higher concentration of phosphorus is reduced by hydrogen gas containing water vapor. 13% of removing yield of phosphorus is obtai … Direct Dephosphorization from Iron Ore Containing Higher Concentration of Phosphorus
Details
A new iron recovery and dephosphorization approach from unroasted high-phosphorus oolitic hematite ore via a facile chemical beneficiation process ... and 61% of SiO 2 can be preliminarily removed from unroasted oolitic hematite ore. Through further dephosphorization with dilute sulfuric acid at room temperature, a high-quality Fe concentrate ...
Details
Sofol is a well-known crusher and grinding mill manufacturer that offers equipment and solutions for customers from aggregates, mining and mineral grinding industry.
You can leave your message here, we'll send you an Email immediately.
Online ChatCopyright ©2000- 2024 Shanghai Sofol CompanySitemap
PE series jaw crusher is usually used as primary crusher in quarry production lines, mineral ore crushing plants and powder making plants.
GET QUOTE