scholarly journals Recent Ferronickel Smelting Operation at HYUGA SMELTING CO., LTD.

2007 ◽  
Vol 123 (12) ◽  
pp. 686-688 ◽  
Author(s):  
Atsushi KAIKAKE
Keyword(s):  
Smelting Operation

Activating of Nickel Slag and Preparing of Cementitious Materials for Backfilling

2014 ◽  
Vol 936 ◽  
pp. 1624-1629 ◽  
Author(s):  
Ke Qing Li ◽  
Yang Yi Zhang ◽  
Peng Zhao ◽  
Lin Feng
Keyword(s):  
Raw Materials ◽  
Chemical Activation ◽  
Cementitious Materials ◽  
Evaluation Standards ◽  
Smelting Operation ◽  
Backfill Materials ◽  
Filling Method ◽  
Cementitious Activity ◽  
Activation Conditions ◽  
Cementing Agent

The back-filling method is distinguished from other mining methods by its higher cost. In order to solve this problem and utilize water-granulated nickel slag as much as possible, nickel slag from flash smelting operation was used to prepare cementitious materials for backfilling. Approaches including mechanical activation and chemical activation were adopted to improve the cementitious activity of the slag. By taking the strength of the backfill materials as the evaluation standards, the hydration activity and cementitious performance of the slag were investigated under different activation conditions, and the mechanism of chemical activation was analyzed. The results shows that cementing agent prepared by using mainly the slag (occupying 85% of the total raw materials) can be used to replace cement and meet the production requirements for backfilling materials.

scholarly journals Copper Smelting Operation at Tamano Smelter.

1993 ◽  
Vol 109 (12) ◽  
pp. 953-958 ◽  
Author(s):  
Kenji SASAKI
Keyword(s):  
Copper Smelting ◽  
Smelting Operation

Beneficiation of Vanadium and Titanium Oxides by Using Selective Extraction of Iron in Low-Titanium Magnetite Concentrate

2017 ◽  
Vol 265 ◽  
pp. 913-918 ◽  
Author(s):  
Yu. Kapelyushin ◽  
V. Roshchin ◽  
A. Roshchin
Keyword(s):  
Slag Phase ◽  
New Technologies ◽  
Selective Reduction ◽  
Selective Extraction ◽  
Titanium Oxides ◽  
Low Carbon ◽  
Magnetite Concentrate ◽  
Smelting Operation ◽  
Iron Iron ◽  
Titanium Magnetite

Issues with existing vanadium beneficiation stimulate the development of new technologies for wasteless production of vanadium. The present work investigates a possibility of beneficiation of vanadium and titanium oxides in a low-titanium magnetite concentrate by using selective reduction and extraction of iron. Iron was selectively reduced by coal without melting and separated from the oxide (slag) phase during further smelting operation. After the liquid-phase separation vanadium and titanium oxides were accumulated in a slag phase. The following products were produced: slag, containing vanadium and titanium oxides, and iron with relatively low carbon content. The content of vanadium and titanium in a final product has increased in comparison to the initial concentrate.

The effect of Al2O3 on fayalite-based copper smelting slags in equilibrium with matte and tridymite at 1 2008C and P(SO2) = 0.25 atm

2020 ◽  
Vol 111 (4) ◽  
pp. 283-289
Author(s):  
Taufiq Hidayat ◽  
Evgueni Jak ◽  
Ata Fallah-Mehrjardi ◽  
Peter C. Hayesa
Keyword(s):  
Compositional Analysis ◽  
Rapid Quenching ◽  
Copper Smelting ◽  
Experimental Investigations ◽  
Condensed Phases ◽  
Equilibration Time ◽  
X Ray ◽  
Silica Substrate ◽  
Smelting Operation ◽  
Thermodynamic Databases

Abstract Experimental investigations have been undertaken to determine the effect of Al2O3in slag on the gas/slag/matte/tridymite equilibria in the multi-component Cu-Fe-O-S-Si-Al system at 1 200 8C, and P(SO2) = 0.25 atm. The experimental technique involves high temperature equilibration of synthetic samples on the open silica substrate in controlled gas atmospheres (CO/CO2/SO2/Ar), rapid quenching after a designated equilibration time followed by the compositional analysis of the condensed phases with electron probe X-ray microanalyzer. The experimental data of the present study provide information on the effect of alumina on the slag composition, such as the chemically dissolved copper, dissolved sulphur, and Fe/SiO2 ratio in slag at tridymite saturation at different Cu in matte. The new data have been used as inputs for the optimization of the thermodynamic databases for the copper-containing systems and can also be used to evaluate the fluxing strategy in the copper smelting operation.

Effect of adding schungite to the blast-furnace charge on the smelting operation and the smelting products

Metallurgist ◽  
2007 ◽  
Vol 51 (1-2) ◽  
pp. 19-22
Author(s):  
V. I. Sedinkin ◽  
V. A. Gostenin ◽  
V. P. Gridasov ◽  
S. K. Sibagatullin ◽  
L. S. Kanin
Keyword(s):  
Blast Furnace ◽  
Furnace Charge ◽  
Blast Furnace Charge ◽  
Smelting Operation

The Classification of Early Iron-Smelting Furnaces

1972 ◽  
Vol 52 (1) ◽  
pp. 8-23 ◽  
Author(s):  
H. F. Cleere
Keyword(s):  
Iron Age ◽  
Molten Slag ◽  
Northern Europe ◽  
Early Iron Age ◽  
New Classification ◽  
Air Blast ◽  
Iron Smelting ◽  
Smelting Operation ◽  
Different Types

SummaryThe paper begins by surveying the different types of early iron-smelting furnace, based on a tentative classification proposed by Coghlan in 1956. The ambiguities in this classification are indicated, together with examples of furnaces that do not fall easily into one of its three categories.On the basis of data derived principally from furnaces of the Early Iron Age and Roman periods from northern Europe, the author proposes a new classification into two main groups, differentiated by their provisions or otherwise for the removal of molten slag during the iron-smelting operation. Each of these groups is further subdivided, according to the shape of the furnace superstructure and/or the method of supplying the air blast.

scholarly journals The application of best available technology in dealing with Ontario's waste electric and electronic equipment : a case study

2021 ◽  
Author(s):  
Jonathan Pryshlakivsky
Keyword(s):  
Electronic Waste ◽  
Cost Effective ◽  
Electronic Equipment ◽  
The European Union ◽  
Worst Case ◽  
Smelting Operation ◽  
Available Technology ◽  
Cost Effectiveness Study ◽  
Increased Susceptibility

This study seeks to inquire into the impacts of pursuing a comprehensive Waste Electrical and Electronic Equipment (WEEE) program similar to the system in the European Union in the Province of Ontario. O. Reg. 393/04 WEEE seeks to establish a weight-based system of recycling end-of-life (EOL) electronics. BAT revenue projections would make for a profitable endeavour across the first five years of the program, with reductions in pollution and operating costs from primary ore refinement. Sensitivity analysis reveals that the BAT scheme profitability exceeds the "do nothing" option across all price ranges (including worst case scenarios), while, at the same time, results in increased susceptibility to market volatility. A cost-effectiveness study showed that the investment in a new integrated smelting operation would still be more cost-effective than the "do nothing" option. This study points to the need for further research into market incentives regarding the amount of collected electronic waste.

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