Results 61 to 70 of about 105,325 (306)

Tunable amylopectin graft copolymers for flocculating and dewatering iron ore tailings

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Polyacrylamide (PAM), the standard flocculant for mining tailings, often produces turbid supernatants and poorly dewatered sediments, limiting water reuse and tailings densification. We synthesized amylopectin‐graft‐poly[(2‐methacryloyloxy)ethyl]trimethylammonium chloride (AP‐g‐PMETAC) copolymers with systematically varied graft frequency (N = 
Gustavo P. Zago, Reinaldo Giudici, João B. P. Soares   +2 more
wiley   +1 more source

Technological Mineralogical Characteristics and Mineral Processing Test of Donganshan Iron Ore

Kuangchan zonghe liyong
This is an article in the field of mineral processing engineering. In order to accurately grasp the influence of various types of ores on field production, the process mineralogy of various types of ores was systematically and deeply studied by means of ...
Shuyong LIU, Guang YANG, Libin YUAN, Shushuang CONG, Jiangning ZHANG, Zhanliang NIU   +5 more
doaj   +1 more source

Study on Mineralogical Characteristics of Peru Copper-Sulphur Ore Dressing Process by X-ray Diffraction and Scanning Electron Microscope

Yankuang ceshi, 2019
BACKGROUND The main recovered minerals of copper sulfur ores in Peru were copper minerals and sulfur minerals. Due to the complexity of the embedded copper minerals, the superfine granularity of copper minerals and their close relationship with various ...
ZENG Guang-sheng, OU Le-ming
doaj   +1 more source

Clay mineralogy, chemistry, and diagenesis of late devonian K-bentonite occurrences in northwestern Turkey [PDF]

, 2015
Thin beds of tephra (K-bentonites) formed by the diagenesis of volcanic ash are exposed within the limestone-dolomitic limestone successions of the Yilanli formation at Zonguldak and Bartin in northwestern Turkey.
Bozkaya, Ömer, Göncüoğlu, M.C., Günal-Türkmenoğlu, A., Okuyucu, C., Yilmaz, İ.Ö., Ünlüce, Ö.   +5 more
core   +1 more source

Natural South African iron‐rich sand as a functional catalyst in hybrid photocatalytic wet peroxide oxidation technology for the degradation of methyl orange dye pollutant

The Canadian Journal of Chemical Engineering, EarlyView.
This research explored South African iron‐rich sand (SAIRS) as a natural catalyst for light‐mediated wet peroxide oxidation of methyl orange dye in wastewater and at an optimized of conditions of 3500 mg/L catalyst dose, 6 mM H2O2, and pH 2.5, SAIRS achieved 94% methyl orange degradation within 90 min under visible light.
Aaliyah Ebrahim, Stephen Sunday Emmanuel, Alicia Levana Dorling, Shepherd M. Tichapondwa   +3 more
wiley   +1 more source

Study on the Inlay Characteristics and Occurrences of Yunnan Porphyry Polymetallic Gold Deposits

Yankuang ceshi, 2018
BACKGROUND In the Western Yunnan, there is an abundance of low-grade gold resources with uneven grain size, complicated ore structure and incomplete separation. Using the traditional mineralogical analysis process, it is difficult to achieve accurate and
LIU Rong-xin, ZHU Kun, XIE Hai-yun, ZHANG Peng-fei, DING Chao, WU Ji-zong, TONG Xiong   +6 more
doaj   +1 more source

Process Mineralogy of Molybdenum Ore with High Oxidation Rate in Sandaozhuang Mining Area

Kuangchan zonghe liyong, 2023
This is an essay in the field of process mineralogy. By means of chemical multi-element analysis, chemical phase analysis, optical microscope and automatic mineral parameter analysis system (MLA), the systematic research on process mineralogy of the ...
Jianping Jin, Wenfang Che, Yaqing He, Shupeng Liu, Fubo Li, Jianbo Yang, Binglong Chen   +6 more
doaj   +1 more source

Magmatic Intrusions into the Sulfur-Rich Carmel Formation on the Colorado Plateau, USA: Implications for the Mars 2020 Mission [PDF]

, 2018
We report on basaltic dikes in the Colorado Plateau, which crosscut sulfate bearing sediments and compare this to Martian basalts and basaltic sediments in contact with sulfate ...
Crandall, J. R., Filiberto, J., Potter-McIntyre, S. L., Schwenzer, S. P.   +3 more
core  

Green and sustainable synthesis of magnetite from copper slag via citrate complexation for methylene blue dye removal from water

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study proposes a novel, green, and sustainable method for synthesizing magnetic iron oxides from metallurgical copper slag (CS), leveraging its iron content as a valuable resource. Iron was extracted via acid leaching using edible citric acid (ECA), forming a citrate–iron complex (CSL), which was subsequently thermally decomposed at 300°C
Melisa Portilla‐Sangabriel, Karen Valencia García, Tania‐Ariadna García‐Mejía, Agileo Hernández‐Gordillo, Rosa‐María Ramírez‐Zamora   +4 more
wiley   +1 more source

Influence of Minerals Mechanical Properties on Grinding of Copper Smelting Slags Main Components

Kuangchan zonghe liyong, 2023
This is a paper in the field of mineral processing engineering. Copper smelting slag is a kind of important secondary resource of copper. Crushing is the basis and prerequisite for the separation and enrichment of copper minerals in copper smelting slag.
Chengwen Wang, Lei Sun, Wei Sun, Xuefeng Cao, Zhiyong Gao, Jiangqiu Wu   +5 more
doaj   +1 more source