Bureau of Mines / Minerals yearbook metals, minerals, and fuels 1972
Year 1972, Volume 1 (1972)
Magnesium compounds, pp. 747-755 ff. PDF (796.7 KB)
MAGNESIUM COMPOUNDS 755 World sea water magnesia production are as follows: facilities by company and annual capacity Country . Location Company Capacity (short tons MgO) Canada Ireland Israel Italy Japan Mexico Norway U.S.S.R Aguathuna, Newfoundlanth Dungarvan, Waterford Arad (Syracuse, Sicily ~ ISant'Antioco, Sardinia (Hotsu Navetsu fMinamata, Onohama, Toyama~ lUbe, Yamaguchi Ciudad Madero, Tampico Heroya, Oslo Fjord NA Lundrigan's Ltd Pfizer Chemical Corp Dead Sea Works, Ltd Compagnia Generale de Magnesio S.p.A.' Sardamag S.p.A Hokuriku Seien K.K Nihon Kasui Kako Shin-Nihon Chemical Industries Co.~ Ube Chemical Industries Co., Lt& -- Quimica del Mar SA Norsk Hydro-Elektrisk Kvaeistof A/S. 30,000 75,000 50,000 60,000 120,000 35,000 120,000 170,000 420,000 50,000 80,000 100,000 United Kingdom - - United States Hartlepool County, Durham (2) Steetley, Ltd 250,000 660,000 Total 2,220,000 NA Not available. 1 Under construction. 2Sea water production facilities appear in tabulation shown in "Domestic Production" section of this chapter. TECHNOLOGY The Philadelphia Electric Company is installing a prototype system to absorb sulfur dioxide from flue gas with magnesium oxide.2 The system will be in operation in late 1973 and will be the first of its kind installed on a coal-fired unit. The total cost of the facilities will be approximately $15 million. The Potomac Electric Power Company planned to install a prototype system also to absorb sulfur dioxide from flue gas with magnesium oxide using a process developed by Chemical Construction Company and Basic Chemicals of Cleveland.3 This plant will not probably be in operation before 1975. The approximate cost of the facilities will be about $6' million. New methods to beneficiate domestic ohvine for foundry sand applications were investigated.4 A disadvantage of calcining olivine in conventional rotary kiln or fluidtype calciners is partial oxidation of ferrous oxide, which is undesirable in foundry sands. A laboratory tube-type furnace, making use of the free-flowing properties of olivine sand, was designed for continuous calcining. Utilizing this technique, highquality foundry sand could be produced from olivine by calcining under nonoxidizing conditions. A report on the refractory magnesia industry in Canada was published by the Mines Branch of the Department of Energy, Mines, and Resources.5 The review induded information on the occurrence of magnesite, current commercial exploitation of magnesite, and sea water magnesia in Canada. An artide was published summarizing the development work leading to the analysis of periclase products by atomic absoi-ption~6 Test results showed that agreement between atomic absorption and wet chemical methods for calcium oxide, silica, iron and alumina were good. It was concluded that atomic absorption methods were suitable for quality control analyses of peridase grain containing greater than 95% MgO. 2Anmment of the State-of-Technology of Air Pollution Control Equipment and of the Impact of Clean Air Regulations on the Adequacy of Electric Power Supply of North America Bulk Power Systems. National Electric Reliability Council. Appendix G, October 1972. Gas Scrubber for Pepco. The Washington Daii~ News. No. 51, Jan. 5, 1972, p. 22. ~ Bedeker, Immo H. Beneficiation of Olivine for Foundry Sand by Calcining. Minerals Research Laboratory, Report No. MRL-2, North Carolina State Univ., August 1972. 17 pp. Palfreyman, M. Refractory-Grade Magnesia in Canada. Tech. Bull., TB 163, November 1972. Werner, Glen E. Analysis of Periclase b~ Atomic Absorption (AA). Prize Winning Papers in the 1972 Award Contest for the Best Papers on any Phase of Refractories. April 13—14, 1972, pp. 21—30; available from The Refractories Institute, 3154 One Oliver Plaza, Pittsburgh, Pa. 15222.
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