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Smelting Lead on Lodge Moor, Ughill, Sheffield, South Yorks

Harsco publishes – 20 Environmental Report UK: Harsco has published its environmental report for – 20, a year in which it divested its ind Belgium: The World Steel Association says that global steel production in the first half of was Russia: Eurocement subsidiary Belgorodsky Cement has announced the start of commercial production of The conference will allow all attendees to maximise their profits from slag – both ferrous and non-ferrous, will keep them up-to-date with the industry state-of-the-art and will provide extensive networking and business opportunities for both producers and users of slag and slag-based products.

If your business is slag, make it your business to attend the 15th Global Slag Conference in ! Applications of iron and steelmaking slag products – by MPA Slag.

In the Nsukka region of southeast Nigeria (now Igboland), archaeological sites containing iron smelting furnaces and slag have been excavated dating to

Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice. EC number: CAS number: Slag resulting from the smelting of a heterogeneous mixture of copper and precious metals from primary and secondary sources and plant reverts. Major constituents are iron oxide and silicon dioxide with minor amounts of copper, lead, nickel and various non-ferrous metals and oxides.

Table 1. Metal releases were calculated as the difference between the mean sample release and the mean blanks release at hours. Only minor releases are recorded for some of the other metals: lead 0 — 3. The releases from the pH 6 tests thus represent a reasonable worst case across the relevant pH gradient.

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Received Date: December 29, ; Accepted Date: January 12, ; Faynan at ancient smelting sites populated with large heaps of industrial copper slag.

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Slag has yet for as people have waste steel slag, there’s been proposed.

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The site of Habaqila is located in the area between Inner Mongolia and Liaoning provinces and dated to the 13th—11th centuries BC. It was identified as a metal production workshop of the Lower Xiajiadian Culture and revealed abundant metallurgical remains, including ore fragments, slags, technical ceramics, and stone implements. Scientific analyses demonstrated that polymetallic ores were smelted to produce tin bronze and arsenical copper.

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Items in the Repository are protected by copyright, with all rights reserved, unless otherwise indicated. Show Related Articles. View License. Show full item record. Hauptmann, A Modarressi-Tehrani, D. Der Anschnitt, Beiheft 26 , pp. The site was almost completely excavated from to and ten roasting hearths, six double furnaces, a number of pits of variable size, form and function, and three separate slag dumps have been recorded. The use of this smelting site covers the whole period of the Middle Bronze Age from the 16th to the 13th century BC and might extend as far as the 11th century BC.

The aim of this archaeometallurgical study is the reconstruction of the smelting process at this site and the discovery of possible diachronic changes or developments in the technology of smelting during the different phases of use. Therefore slags of the different archaeological phases were analysed for their chemical and mineralogical composition.

4. Luminescence Dating of Archaeological Materials

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This early smelting site near Lodge Moor is the most intact known bole smelting site in A variety of slags are visible in a floodwater-erosion patch and small animal scrapes; Smith, R. () Radiocarbon dating of early lead smelting sites.

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Iron metallurgy in Africa

The topic of early iron-metallurgy in sub-Saharan Africa encompasses both studies of the technology and archaeology of indigenous iron-production, and also an understanding of the role that iron production played in African societies before European colonization. Some evidence from historical linguistics suggests that the Nok culture of Nigeria may have practiced iron smelting from as early as BC; [1] [2] archaeological evidence dates this not later than BC.

The Bantu expansion spread the technology to Eastern and Southern Africa during c. Although the origins of iron working in Africa have been the subject of scholarly interest since the s, it is still not known whether this technology diffused into sub-Saharan Africa from the Mediterranean region, or whether it was invented there independently of iron working elsewhere.

is the latter, and many IHAs bring understanding of site or building types which are neglected or little also produced waste, commonly known as slag, which is ironworking. Archaeomagnetic dating of ironworks, particularly.

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