Found inside – Page 46Uses The principal use of tantalite is the production of tantalum metal for use in ... of the Congo and Nigeria ) and with production of beryl in Brazil . Found inside – Page 640Many placer mines produce important amounts of columbite-tantalite (Nigeria) ... interfere with other land uses is illustrated by the successful reopening ... Found inside – Page 46Uses The principal use of tantalite is the production of tantalum metal for use in ... of the Congo and Nigeria ) and with production of beryl in Brazil . Found inside – Page 126(a) (b) Tin is believed to be one of the first metals used by man. ... 10.6 (a) Samples of Tantalite deposite obtained from Andaha in Nasarawa state (b) ... Found inside – Page 33Columbite , of which Nigeria is now the foremost source , is used in certain steel alloys to increase their ductility and resistance to corrosion and ... Columbite and tantalite which are used for similar purposes are generally found together . Found inside – Page 944RUTILE Uses : Welding - rod coating ; alloy ( ferrotitanium ) titanium cyanonitride in ... TANTALITE Uses : Electronics , surgical and chemical equipment . Found inside – Page 644A variety of exacting specifications related to particular end - uses dictate ... tantalite content ) and Nigerian columbite ( 5-8 percent tantalite ) from ... Found inside – Page 6While certain of tantalite's exact uses are a military secret , the heavy wartime demand for the mineral is evidenced by its " air priority . Found inside – Page 78A variety of exacting specifications related to particular end - uses dictate ... tantalite content ) and Nigerian columbite ( 5–8 percent tantalite ) from ... Found inside – Page 36It probably was the first metal used by humans and was valued for ornamentation and rituals . ... In Nigeria , recovery of tantalite began in the early 1930 during the mining of tantalite - bearing columbite deposit around the younger granite rock ... Found inside – Page 335... rural population densities in the state , there is ample land waiting to be developed for agricultural , industrial and related uses . ... S / NO Mineral Gold Clay Silica Kyanite Schist Marble Kaolin Casseterite Columbite Tantalite through various ... Found inside – Page 217The greatest single development in the utilization of selenium since 1939 has been in its use in electrical rectifiers that played ... The minerals tantalite and columbite are the tantalate and columbate , respectively , of iron and manganese , with the general formula ( Fe , Mn ) ( Ta , Cb ) 206 . ... The supply of columbite has come mainly from Nigeria , Belgian Congo , Southwest Africa , Argentina and Brazil . Found inside – Page 569Some of the minerals and their various applications are as follows : 4 . 1 . Wolframite and Tantalite : Deposits of wolframite and tantalite exist in the FCT alone , along the road between Suleja and Burum . Wolframite is a compound of iron and ... Found inside – Page 359Major Difficulties Encountered : NEPA failures , lack of proper machines leading to over use of human labour . ... Clay ( laka ) , Fine sand ( yumbu ) Products : ( a ) Name : Tantalite , columbite and tin ( b ) Uses : Alloying of metals , metal coating ... Found inside – Page 78A variety of exacting specifications related to particular end - uses dictate ... tantalite content ) and Nigerian columbite ( 5–8 percent tantalite ) from ... Found inside – Page 1End uses , as an alloying element in superalloys , include jet and turbine ... Columbite - tantalite from Brazil , Nigeria , and other African countries ... Found inside – Page 65They use money from selling tin or columbite to buy chemical fertilizers, ... garnet (in Jiblik); topaz (in Dawaki-Kabwir); tantalite (in Pankshin and ... Found inside – Page vii3.7 Kaolinite 118 3.7.1 Uses of Kaolinite 118 3.7.2 Occurence of Kaolinite in Nigeria 118 3.7.3 Characteristics of ... 123 3.10 Tantalite 124 3.10.1 Uses of Tantilite 124 3.10.2 Occurence of Tantalite in Nigeria 125 3.10.3 Characteristics of ... Found inside – Page 4Therefore , most commercial superconductor devices use columbium alloys such ... Columbite ores , including columbite and columbite - tantalite mineral ores ... Found inside – Page 3COLUMBITE Nigeria , Small shipments of columbite ore have been sent occasionally to the United States from Nigeria for use in the manufacture of certain ... Found inside – Page 1030between the Government of Eastern Nigeria and Italian interests . It was planned that the mill would use the 12,000 to 15,000 tons of scrap steel generated ... Found inside – Page 369Extensive investigation is still required to determine whether the deposita sre in mineable forms and quantities . iv . Tantalite : This is used in alloy and metallurgy , computer and electronic applications . Recent studies by Nigerian Geological ... Found inside – Page 46Uses The principal use of tantalite is the production of tantalum metal for use in ... of the Congo and Nigeria ) and with production of beryl in Brazil . Found inside – Page 41Nigeria on the edge to diversify its economy, the increased global demand ... bitumen, iron ore, tantalite/columbite, lead/zinc, barites, gemstones, ... Found inside – Page 16Columbite and tantalite 23 Nigeria . ... Estimates for concentrate from tin slags , primarily used for the recovery British Geological Survey suggests that ... Found inside – Page 924.2.1 UPSTREAM SECTOR 4.2.1.1 Nigeria To begin with , until the state intervened ... the establishment of two integrated steel plants one of which uses coal ... Found inside – Page 640That development of new lode mines need not columbite - tantalite ( Nigeria ) ; others produce sig- interfere with other land uses is illustrated by the ... Found inside – Page 1982In Nigeria, artisanal tantalite mining is organized by small groups, often based around family structures. Tantalite mining in Ethiopia uses small-scale ... Found inside – Page 20Already a great cricibles , lead pencils , which is used as a fertilideal of these minerals and the uses to heavy lubricants ... Tantalite : As a source of tantalum Beryllium : For the production of Lignite : As a source of power for and nobium metals ... Found inside – Page 139The greatest single development in the utilization of selenium since 1939 has been in its use in electrical rectifiers that played such an important ... TANTALUM - COLUMBIUM Canada produces no tantalite or columbite and according to the Bureau of Mines , Ottawa , the known Canadian ... The supply of columbite has come mainly from Nigeria , Belgian Congo , Southwest Africa , Argentina and Brazil . Found inside – Page 13Raw feed ( from pumps ) Hydraulic Monitors Sluices Dredge Jigs Tailings ( Columbite ) Concentrate ( Tantalite ) APPLICATION AND USES OF TANTALITE The application and uses of tantalite cut across several spheres of life namely the ... Found inside – Page 380A brief account is given of the preparation and uses of laurel oil ( mbtained from the berries of Laurus nobilis ) and also a summary of recent American work in the utilisation of soybean oil in paints . ... whilst the bulk of the world's columbite supplies is obtained as a byproduct from the tinstone deposits of Nigeria . Tantalite is used mainly for the manufacture of metallic tantalum and certain special steels . Found inside – Page 56Tantalite . - A London firm was sent general information regarding the tantalite market , together with the names and ... of climate on building stone from Northern Nigeria , industrial uses of silver , and a large number of statistical inquiries . Found inside – Page 13-3... applications in electrical devices being developed , including new types of motors and ship engines . to a Nigeria ... TANTALUM Canadian Development Canada is the world's largest producer of tantalite ores , one of the major sources of ... Found inside – Page 97Its niobium content is used for stainless steels and high temperature super alloys used in gas turbines and for space missiles and vehicles . Nigeria also mines and exports tantalite , wolframite , galena , lead , zinc and gold . Worth mentioning ... Found inside – Page 16Ferrocolumbium 927 terms , world trade in tantalum- not dependent on pyroMalaysia Columbite and tantalite 23 Nigeria .. Columbite 2126 chlore concentrates ... Found inside – Page 58Tantalum ( tantalite ) . ... The use of tin artifacts in Nigeria had been noted by many early European explorers , but it was not until the turn of the 20th ... Found insideThey are extensively used in metallurgy, casting, smelting, alloying, ... Columbite, tantalite, ilmerite and zircon are found associated in nature with tin ... Found inside – Page 169Ferro - silicon , apart from being used as an additive in steel production in Nigeria , is also required in the foundry ... mineral ( columbite ) and tantalite are very closely associated in Nigeria : Their separation requires special technology . Found inside – Page 4These occur mainly in Zaire , Nigeria , Thailand , the U.S.S.R. , Malaysia ... Consumption of tantalum in other uses such as nuclear reactors , prosthetic ... Found inside – Page 16Ferrocolumbium 927 terms , world trade in tantalum— not dependent on pyroMalaysia Columbite and tantalite 23 Nigeria . Columbite 2126 chlore concentrates— ... Found inside – Page 78A variety of exacting specifications related to particular end - uses dictate ... tantalite content ) and Nigerian columbite ( 5–8 percent tantalite ) from ... Found inside – Page 3With the use of German patents they hope to crush and reduce the ore in Winnipeg at ... from Nigeria for use in the manufacture of certain types of steel . Found inside – Page 640That development of new lode mines need not columbite - tantalite ( Nigeria ) ; others produce sig- interfere with other land uses is illustrated by the ... Found inside – Page 78A variety of exacting specifications related to particular end - uses dictate ... tantalite content ) and Nigerian columbite ( 5-8 percent tantalite ) from ... Found inside – Page 58Tantalum associated with tantalite occurs in the middle belt area of Kogi , Kwara , Nasarawa State and Ibadan in Oyo state . Nigeria has been shown to be the highest producer of tantalum in the world . Tantalum among other uses , is ... 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