Technical Options for Conservation of Metals: Case Studies of Selected Metals and Products. Volume II-B: Flows of Selected Materials, 1974

摘要

The first task in this assessment was to determine the materials flows for iron and steel, aluminum, copper, chromium, nickel, tungsten, platinum-group metals from their sources (ore) to end-use products. Data were collected on the flow of material in 1974 from source (country) into end-use products with as detailed a classification as was possible with available data. Information on foreign and domestic sources of minerals supply was summarized along with the amounts of secondary metals including prompt and obsolete scrap. In this first task, projections of domestic supply and demand to the year 2000 were also made. In making these longer term projections, major changes in supply technology and major changes in demand technologies were considered. This volume is an edited version of the data collection and analysis on flows of selected basic materials.