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Delta Steel plant begins to utilize industrial material

10 December, 2012 at 5:45 am in Business

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It is used by the Delta Steel plant at Aladja as a flux- ing agent and for making hydrated lime. Marble is found in the Basement Complex and is quarried at Jankura near Lokoja, at Ubo near Okene, and at Okpilla. The Jankura marble is utilised as decorative marble by the Nigerian Marble Industries. Dolomitic marble deposits are exploited at lgbeti in Oyo State and at Kwakuti in i Niger State. Other deposits are at Elehu in Kwara State, Kobe in Benue State, Muro Hill in Plateau State, and at Burum and Taka Lafia in the Federal Capital Territory.

And, indeed, cement is in very high demand in the country. While limestones abound in Nigeria more than in any other West African country, gypsum and other salts have not been found in commercial quantity. The nearest potential source of gypsum for Nigeria could be Mali Republic, where millions of tonnes of mineable salts occur at Agorgott. As for clinker (processed limestone for cement), Nigeria could export this material to Cameroun, which at present obtains its clinker from Europe.

Seven out of the eight cement factories in Nigeria are sited close to limestone deposits, except the plant at Okpilla in Edo State, which uses marble. The cement factory at D'Onigholo in Benin Republic is jointly owned by Benin (52 per cent) and Nigeria (46 per cent); It is located on the Ewekoro limestone deposit which extends from Ogun State in Nigeria to as far as Ghana. Other cement factories in Nigeria are located atAshaka, Yandev, Nkalagu, Shagamu, Okpilla, Ewekoro, Sokoto and Calabar.

The limestone at Mfamosing, near Calabar, is the largest and the purest deposit in Nigeria. It is about 50m thick, at the quarry site. West of Calabar, another carbonate body occurs in the subsurface that is 450m thick. The Calabar flank is the main carbonate province in Nigeria, with well-developed tropical karsts and caves (Reiljers and Potters, 1987). The Mfamosing limestone has over 97 per cent limestone (CaC03).Henan Hongxing Mining Machinery Co., Ltd is the professional manufacturer of complete sets of mining machinery, for example,screw washing machine, jaw crusher Welcome all of you to visit our official website.barite grinding mill: http://www.china-hxjq.com/n300.html

Feldspar, a mineral that is used locally in the ceramic and glass industries, occurs abundantly in the Basement Complex. Economic deposits are found in the granitic intrusives in the basement and especially in pegmatites where potash feldspar is the commercial type. Important sources of feldspar rich pegmatites occur in Kwara and Kogi States and also extensively around Osogbo in Osun State.Near Oshogbo, potash feldspars attain lengths of 0.9m, but around Ijero in Ekiti state, gigantic crystals are up to 1.2m long.

Feldspar-rich pegmatities are common in the Qwozan area of Borno State and in parts of Adamawa/Taraba states. Although rock salt has not been found in Nigeria, highly saline brines in the Benue Trough provide potential local sources of salt except, of course, the open ocean and there are as yet no salinas on the Nigerian coast.But along the Benue Trough brines, saltsprings, saltponds and shallow subsurface brine pools are commonly associated with lead-zinc deposits.

Salt concentrations are up to 1.5 per cent in the Ikom area and 8.6 per cent at Okpoma in Cross River State, where the richest occur. At Uburu-Okposi in Abia State, the salt con- centration is up to 5 per cent and 5 - 6 per cent at Ameri.nearAbakaliki. Further north, in Nassarawa State (Keana, Awe) and in Taraba and Adamawa States, there are other brinefields. Geophysical investigations by the Geological Survey of Nigeria and other organisations aimed at locating salt domes in the Benue Trough, have so far not found any.

Therefore, the establishment of local, modern and large-scale salt industry in Nigeria is still a dream not realised. However, at Okpoma, Ikom, Uburu, Okposi, Abakaliki and in the Keana/Awe areas, the local people have established a long tradition of winning salt from their brines.

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