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Technological and industrial history of 20th century
The late Electric Age (19011920) Industrial processes and techniques. Metal mining also became significant industry during this period. The International Nickel Company was established in 1902 through the fusion of two companies.A refinery using the Orford process was built in Port Colborne, Ontario in 1918 and then moved to Copper Cliff, Ontario, where that technique was replaced by the
This is when solid particles stick to one another, and while this is an undesirable feature in many powder and particle processing operations, it is essential for the successful sintering of iron ore fines, coke and fluxes into a suitable blast furnace feed.
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Part 261 Identification and Listing of Hazardous Waste
(1) A spent material is any material that has been used and as a result of contamination can no longer serve the purpose for which it was produced without processing; (2) Sludge has the same meaning used in 167;260.10 of these regulations; (3) A by product is a material that is not one of the primary products of a production process and is not solely or separately produced by the production process.