High-Quality Inorganic Red Pigment Prepared by Aluminum Deposition on Biogenous Iron Oxide Sheaths

2020 ◽  
Vol 3 (9) ◽  
pp. 5699-5707
Author(s):  
Katsunori Tamura ◽  
Tatsuki Kunoh ◽  
Noriyuki Nagaoka ◽  
Jun Takada
Keyword(s):  
Iron Oxide ◽  
Red Pigment ◽  
High Quality ◽  
Aluminum Deposition

scholarly journals Selective Separation of Hematite by a Synthesized Depressant in Various Scales of Anionic Reverse Flotation

Minerals ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 124 ◽  
Author(s):  
Arash Tohry ◽  
Reza Dehghan ◽  
Saeed Chehreh Chelgani ◽  
Jan Rosenkranz ◽  
Omid Rahmani
Keyword(s):  
Iron Oxide ◽  
Iron Ore ◽  
Selective Separation ◽  
Reverse Flotation ◽  
High Quality ◽  
Main Hypothesis ◽  
Iron Concentrate ◽  
Ore Processing ◽  
The World ◽  
Apatite Group

Demand for high-quality iron concentrate is significantly increasing around the world. Thus, the development of the techniques for a selective separation and rejection of typical associated minerals in the iron oxide ores, such as phosphorous minerals (mainly apatite group), is a high priority. Reverse anionic flotation by using sodium silicate (SS) as an iron oxide depressant is one of the techniques for iron ore processing. This investigation is going to present a synthesized reagent “sodium co-silicate (SCS)” for hematite depression through a reverse anionic flotation. The main hypothesis is the selective depression of hematite and, simultaneously, modification of the pulp pH by SCS. Various flotation experiments, including micro-flotation, and batch flotation of laboratory and industrial scales, were conducted in order to compare the depression selectivity of SS versus SCS. Outcomes of flotation tests at the different flotation scales demonstrated that hematite depression by SCS is around 3.3% higher than by SS. Based on flotation experiment outcomes, it was concluded that SCS can modify the pH of the process at ~9.5, and the plant reagents (including NaOH, Na2CO3, and SS gel) can be replaced by just SCS, which can also lead to a higher efficiency in the plant.

scholarly journals In situ growth of capping-free magnetic iron oxide nanoparticles on liquid-phase exfoliated graphene

Nanoscale ◽  
2015 ◽  
Vol 7 (19) ◽  
pp. 8995-9003 ◽  
Author(s):  
T. Tsoufis ◽  
Z. Syrgiannis ◽  
N. Akhtar ◽  
M. Prato ◽  
F. Katsaros ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Liquid Phase ◽  
Iron Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Graphene Sheets ◽  
In Situ Growth ◽  
Magnetic Iron Oxide Nanoparticles ◽  
High Quality ◽  
Exfoliated Graphene

We report a facile approach for the in situ synthesis of very small iron oxide nanoparticles on the surface of high-quality graphene sheets.

A facile and highly efficient short-time homogenization hydrothermal approach for the smart production of high-quality α-Fe2O3 for rechargeable lithium batteries

2017 ◽  
Vol 5 (32) ◽  
pp. 16712-16721 ◽  
Author(s):  
P. Santhoshkumar ◽  
K. Prasanna ◽  
Yong Nam Jo ◽  
I. Nirmal Sivagami ◽  
Suk Hyun Kang ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Lithium Batteries ◽  
Three Dimensional ◽  
Rechargeable Lithium Batteries ◽  
High Quality ◽  
One Pot ◽  
Highly Efficient ◽  
Hydrothermal Approach ◽  
Short Time

In the present work, we have synthesized zero-dimensional (0D) and three-dimensional (3D) iron oxide (α-Fe2O3) sub-micron particles using a one-pot hydrothermal approach.

Preparation of Coralloid α-FeOOH and Discussion on its Crystal Growth Mechanism

2013 ◽  
Vol 834-836 ◽  
pp. 3-7
Author(s):  
Yan Yan Guo ◽  
Hai Bo Wu ◽  
Ming Yu Li ◽  
Shuai Sun
Keyword(s):  
Electron Microscope ◽  
Crystal Growth ◽  
Iron Oxide ◽  
Ferrous Sulfate ◽  
The Novel ◽  
High Quality ◽  
Theoretical Support ◽  
Crystal Growth Mechanism ◽  
Morphology And Structure ◽  
Scanning Electron

We prepared the novel coralloid hierarchical structure of α-FeOOH composed of rod-shaped nanosheets by wet method using ammonia and ferrous sulfate. Through observation by Field emission scanning electron microscope (FESEM), the morphology and structure of α-FeOOH in the process of growth was presented. And the formation mechanism of this coralloid crystal α-FeOOH was studied, in order to provide important theoretical support for the preparation of high quality iron oxide yellow products.

Novel environment friendly inorganic red pigments based on Bi4V2O11

RSC Advances ◽  
2015 ◽  
Vol 5 (56) ◽  
pp. 44886-44894 ◽  
Author(s):  
Wendusu Wendusu ◽  
Atsunori Shiraishi ◽  
Naoki Takeuchi ◽  
Toshiyuki Masui ◽  
Nobuhito Imanaka
Keyword(s):  
Iron Oxide ◽  
Inorganic Material ◽  
Red Pigment ◽  
Environment Friendly ◽  
Red Pigments ◽  
Novel Environment ◽  
Environmental Friendly ◽  
Iron Oxide Pigment ◽  
Oxide Pigment ◽  
Commercial Iron

Novel inorganic red pigment, (Bi0.92Zr0.07Al0.01)4V2O11.34, was successfully synthesized as an environmental friendly inorganic material, and its red hue was much higher than that of a commercial iron oxide pigment.

Purification of specularite by centrifugation instead of flotation to produce iron oxide red pigment

2020 ◽  
Author(s):  
Xi Zhang ◽  
Shun-wei Zhu ◽  
Yu-jiang Li ◽  
Yong-li Li ◽  
Qiang Guo ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Red Pigment

Little Adjustments Significantly Simplify the Gram-Scale Synthesis of High-Quality Iron Oxide Nanocubes

Langmuir ◽  
2021 ◽  
Author(s):  
Michael Kampferbeck ◽  
Lea R. Klauke ◽  
Horst Weller ◽  
Tobias Vossmeyer
Keyword(s):  
Iron Oxide ◽  
High Quality

Preparation of nano-iron oxide red pigment powders by use of cyanided tailings

2008 ◽  
Vol 155 (1-2) ◽  
pp. 369-377 ◽  
Author(s):  
Li Dengxin ◽  
Gao Guolong ◽  
Meng Fanling ◽  
Ji Chong
Keyword(s):  
Iron Oxide ◽  
Red Pigment
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