old chemicals in the manufacture of metal

Industrial Processes - Wikipedia

Industrial processes are procedures involving chemical, physical, electrical or mechanical steps to aid in the manufacturing ... or as a by-product of copper refining. Smelting - the generic process used in furnaces to produce steel, copper, etc.

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Hazardous chemicals in electronic devices | Greenpeace East Asia

Jun 28, 2011 ... Many of these contain toxic heavy metals such as lead, mercury, ... of hexavalent chromium, used in the production of metal housings, are...

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Steel - Wikipedia

Steel is an alloy of iron and carbon with trace amounts of other elements. Because of its high .... Other materials are often added to the iron/carbon mixture to produce steel with desired properties. .... excavated from an archaeological site in Anatolia (Kaman-Kalehoyuk) and are nearly 4,000 years old, dating from 1800 BC.

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Steelmaking - Wikipedia

Steelmaking is the process for producing steel from iron ore and scrap. In steelmaking ... steel. The process is known as basic due to the chemical nature of the...

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Tin can - Wikipedia

A tin can, tin steel can, steel packaging or a can, is a container for the distribution or storage of goods, composed of thin metal. Many cans require opening by cutting the "end" open; others have removable covers. Cans hold diverse contents: foods, beverages, oil, chemicals, etc. ... By 1813 they were producing their first tin canned goods for the Royal Navy.

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materials processing | Britannica

Industrial materials are defined as those used in the manufacture... ... Materials processing by hand is as old as civilization; mechanization began with the ... in chemical milling the metal is removed by the etching reaction of chemical solutions...

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Toxic waste - Wikipedia

Toxic waste is any material in liquid, solid, or gas form that can cause harm by being inhaled, swallowed, or absorbed through the skin. Many of today's products such as televisions, computers and phones contain toxic chemicals that can pollute the air and ... The waste can contain chemicals, heavy metals, radiation, dangerous...

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How Green Are Those Solar Panels, Really? - Latest Stories

Nov 11, 2014 ... Yet manufacturing all those solar panels, a Tuesday report shows, ... Fabricating the panels requires caustic chemicals such as sodium ... enough places to recycle old solar panels, and there aren't enough ... "It would be difficult to find a PV module that does not use at least one rare or precious metal," he...

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Waste, Chemical, and Cleanup Enforcement | Enforcement | US EPA

Jul 11, 2017 ... Drums of unknown waste at a paint manufacturing facility in the Midwest. Facilities are required to identify and properly label any drums...

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