Search Documents
Search Again
Search Again
Refine Search
Refine Search
- Relevance
- Most Recent
- Alphabetically
Sort by
- Relevance
- Most Recent
- Alphabetically
-
Hydrometallurgical treatment of zinc ash from hot-dip galvanizing process Mining, Metallurgy and Exploration
By G. Włoch, E. Rudnik
The oxide fraction of industrial zinc ash was characterized in terms of chemical and phase composition, leaching behavior in sulfuric acid solutions, and leaching thermal effect. The waste product con
-
Computerized Mine Planning At Mac Intyre
By Thomas F. Joyce
N L Industries, Inc., MacIntyre Development produces ilmenite and magnetite concentrates from its own open pit operation at Tahawus in New York's Adirondack Mountain region. The ilmenite concentr
Jan 1, 1973
-
Crown Pillar Recovery at Hudson Bay Mining
By Stephen Davies
Mining at Hudson Bay Mining & Smelting's Snow Lake Division is now in the mature stage of the mines' lives. These base metal copper-zinc mines have been operating for more than 30 years. Sto
Jan 1, 1992
-
Rib Support Optimization for a Room-and-Pillar Mine
The National Institute for Occupational Safety and Health (NIOSH) conducted a monitoring field study to optimize the rib control plan in a room-and-pillar coal mine. The study mine is located in the C
Jul 28, 2020
-
Mining Review (8ea836c9-6346-4229-805b-5f63a4114d3f)
Minerals contribute to the U.S. gross domestic prod-uct (GDP) at several levels?mining, processing and manufacturing finished products. In 2008, the estimated growth rate for the real GDP of the Unite
Jan 1, 2009
-
Health and Safety Challenges for China’s Mining Industry
By Jerry C. Tien
Mining in China dates back at least 4,000 years. Today, with no less than 103,000 metal/nonmetal mines and between 40,000 to 80,000 coal mines, China’s mining industry is undoubtedly the largest in t
Jan 1, 2005
-
Calcium Ion Activation Of Silica Surfaces With Sodium Oleate Collector
By Y. I. Rabinovich, S. C. Brown
In the Florida phosphate industry, fatty acid collectors are used to separate phosphate ore from silica during the rougher flotation stage. However, the presence of multivalent ions (in particular Ca+
Jan 1, 2004
-
Electrical Fragmentation Of Magnetic Iron Ores ? Introduction
By Erich Sarapuu
Today's increasing needs for rapid excavation have stimulated efforts to break rocks without explosives. The application of electric energy for this purpose has been studied by a number of invest
Jan 1, 1969
-
Mining 1987
By J. D. Morgan
Introduction In 1987, the US economy continued to grow steadily, reaching an annual rate of $4.6 trillion in the last quarter. The value of domestically processed mineralbased materials rose slightly
Jan 5, 1988
-
The assessment of noise from block cutting machines using the P-wave velocity
By M. S. Delibalta, S. Kahraman, R. Comakli
The block cutting machine is one of the most important noise sources in the stone processing factories. In this study, the assessability of the noise from the block cutting machines in the stone proce
Jan 1, 2011
-
Discussion - The Flotation Behavior of Digested Asphalt Ridge Tar Sands - Technical Papers, MINING ENGINEERING, Vol. 33, No. 12, December 1981, pp. 1719-1724
By J. D. Miller, R. J. Smith
Earl C. Herkenhoff Publication of the article "The Flotation Behavior of Digested Asphalt Ridge Tar Sands" by R.J. Smith and J.D. Miller has confirmed and again spotlighted a most significant and
Jan 11, 1982
-
An Improved Hydrometallurgical Route For Tellurium Production
By A. Robles-Vega
In recent years, tellurium has been extensively used in the manufacture of semiconductor materials. For this type of application, high-purity tellurium is required. Selenium, lead and silicon are usua
Jan 1, 2009
-
The Deep Underground Science And Engineering Laboratory And The Construction Of Physics Megacaverns
By C. Laughton
The Deep Underground Science and Engineering Laboratory (DUSEL) is to be constructed at the defunct Homestake Mine, in South Dakota. As a cornerstone of DUSEL?s research program, it is intended to con
-
Pillar Design and Coal Burst Experience in Utah Book Cliffs Longwall Operations
Longwall mining has existed in Utah for more than half a century. Much of this mining occurred at depths of cover that significantly exceed those encountered by most other U.S. longwall operations. De
Jan 7, 2020
-
Caterpillar Moves Forward With F Series Mining Trucks
The largest investment in mining equipment in Caterpillar?s history ? The F series mechanical and electrical drive trucks ? is rapidly advancing. Caterpillar showcased the 793F and 797F mechanical dr
Jan 1, 2009
-
Gotthard-Base Tunnel, Section Faido Previous Experience With The Use Of The TBM
By Martin Herrenknecht
After the successful breakthrough at the end of 2006 of both TBMs into the multifunctional site Faido (MFS), in the middle of 2007 the two tunnel boring machines resumed the 12 km long section between
-
Influence of blasting techniques on open pit economics
By H. G. Naidu, Raj K. Singhai, S. P. Singh
Introduction The economics of open-pit mining de¬pend heavily on the cost of overburden removal. It is necessary to maintain a pit slope as steep as possible. Steeper slopes lower the volume of overb
Jan 1, 1989
-
Estimating Technology’s Impact on Underground Coal Productivity
By Stanley C. Suboleski
1977 was the modern day low point for productivity in the coal industry. At that time, no one could have predicted that the industry was about to enter a productivity rise that would continue unabated
Jan 1, 1990
-
Reverse anionic flotation of quartz from Muro iron ore
By G. G. O. O. Uwadiale, M. A. U. Nwoke
The recovery of iron from low-grade (31.6% Fe) Muro iron ore was investigated using reverse anionic flotation of quartz. Tests were performed to investigate the effect of pH, the effects of using dist
Jan 1, 1996
-
San Vicente to 2nd Aqueduct Pipeline - Tunnel: Drill and Blast in Advance of an Open-Face Digger Shield
By Brett Campbell
The San Vicente to 2nd Aqueduct Pipeline?Tunnel project is a raw water conveyance tunnel linking the San Vicente Reservoir (SVR) to the 2nd Aqueduct Pipeline via Rancho Penasquitos Pressure Control Fa
Jan 1, 2008