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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of the Korean Institute of Resources Recycling
Journal Basic Information
Journal DOI :
The Korean Institute of Resources Recycling
Editor in Chief :
Volume & Issues
Volume 12, Issue 6 - Dec 2003
Volume 12, Issue 5 - Oct 2003
Volume 12, Issue 4 - Aug 2003
Volume 12, Issue 3 - Jun 2003
Volume 12, Issue 2 - Apr 2003
Volume 12, Issue 1 - Feb 2003
Selecting the target year
Preparation and Characterization of Copper Oxychloride from Acidic Copper Chloride Etchant
Journal of the Korean Institute of Resources Recycling, volume 12, issue 2, 2003, Pages 3~10
Copper oxychloride used as an agricultural fungicide has been recovered from copper-containing waste etchant by the neutralization with alkali hydroxides. Large amount of copper-containing waste etchant is generated from Printed Circuit Board industry. In an environmental and economic point of view, retrieve of the valuable natural resource from the waste is important. Recycling process of copper oxychloride from the waste etchant is discovered through the our study. In the range of reaction temp. 2
, pH 5-7, pure copper oxychloride was able to prepare and the yield of copper oxychloride was higher than 95%. Physical properties of the sample have been characterized using SEM, XRD, TGA, ICP and Atomic absorption spectroscopy.
Porosity and Strength Properties of Permeable Concrete Using Limestone Mine Wastes as Coarse Aggregate for Concrete
Journal of the Korean Institute of Resources Recycling, volume 12, issue 2, 2003, Pages 11~20
Limestone mine waste was used as a aggregate far permeable concrete. Void ratio, continuous void ratio, coefficient of permeability, compressive strength and flexural strength of concrete were measured and then the relationship between porosity and strength properties was investigated. Void ratio, continuous void ratio and strength properties of permeable concrete were greatly influenced by the grain size of aggregate and void filling ratio in comparison with the containing ratio of limestone mine waste. Furthermore, void ratio showed a good relation with continuous void ratio, and porosity of permeable concrete indicated a good relation with strength properties also. The coefficient of permeability of permeable concrete using limestone waste was over 0.2 cm/sec and was excellent result in comparison with normal concrete. Therefore, it could be expected that the limestone mine waste would be utilized as aggregate for pavement concrete, green concrete and water resource specie concrete in the results of this study.
The Recovery of Valuable Metals from LD-Slag by Smelting Reduction
Journal of the Korean Institute of Resources Recycling, volume 12, issue 2, 2003, Pages 21~27
Smelting reduction technique in arc furnace was applied for the recovery of valuable metal such as V from LD slag. In the present study, the parameters for increasing the reduction rate and the reduction efficiency were selected by changing the oxide additives, melting temperature and basicity. The optimum condition for LD-slag reduction was achieved by
addition. The reduction ratio of V was increased in increasing the basicity.
A Study on Surface Modification of Waste Rubber Tire(I)
Journal of the Korean Institute of Resources Recycling, volume 12, issue 2, 2003, Pages 28~35
The powder utilization is the one of the best recycling methods for the waste tires. However, economic problem still exist. In order to overcome an economic problem the ground rubber particles are surface modified, which induced to the rubber particles that have good mechanical properties and higher compatibility. In this study, we investigated ultrasonic treatment and reduced rubber particle size. Results showed that sulfur cross-linkage network of the waste rubber is changed by the ultrasonic treatment.
Molybdenum Recovery from Spent Acid Solution Neutralized by Ammonia Gas
Journal of the Korean Institute of Resources Recycling, volume 12, issue 2, 2003, Pages 36~44
The present work relates to the recovery of dissolved Mo from spent mandrel dissolving acid solution by injecting ammonia gas. In order to optimize the process parameters for high yield and high purity of recovered Mo products, a bench scale and a pilot scale experiments were carried out. As a result, more than 99.5% of Mo in spent acid was recovered in the form of ammonium molybdate(4MoO
O). The purity of Mo products recovered was higher than 99.5%. In addition, the mother liquor, residual solution after precipitation and filtration of ammonium molybdate solid particles, could be utilized as fertilizers.
Separation of High Purity and High Carbon Fly Ash by Electrostatic Method
Journal of the Korean Institute of Resources Recycling, volume 12, issue 2, 2003, Pages 45~53
In 2001, Korea produced a total of 4.91 million metric tons of fly ash, approximately 63.3% of which was recycled. Almost all of the recycled fly ash are used in concrete mixtures and cement industry. Therefore, in order to develop a new usage to increase the utilization of the fly ash, conductive induction was used in this research rather than triboelectrostatic. By applying conductive induction, we could verify the possibility of obtaining high purity fly ash below 1%LOI and high carbon fly ash over 70%LOI from raw fly ash. In this test, the potential difference between the two electrodes was conducted by changing the range of 8 to 16 kV.
The System of Plasma Ignition for Coal-Dust and Water-Coal Fuels Ignition
Park, Hyun-Seo ; I. M. Zasypkin ; A. N. Timoshevskii ;
Journal of the Korean Institute of Resources Recycling, volume 12, issue 2, 2003, Pages 54~61
In this paper a system of plasma ignition(SPI) which is applied for the ignition and stabilization of coal-dust fuel burning for decreasing fuel black oil consumption is described. The advantages of SPI are demonstrated, and the positive results of SPI which is operated at the thermal-clamping boilers installed in production and heating plants are described. The similar system was tested in demonstration and industrial installations to confirm the results. The improvement of economical, operating and ecological performances of the boiler are shown.