著者

西脇 三樹雄

出版者

一般社団法人 資源・素材学会

雑誌

日本鉱業会誌 (ISSN:03694194)

巻号頁・発行日

vol.81, no.931, pp.981-988, 1965-11-25 (Released:2011-07-13)

被引用文献数

1

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The Ma On Shan Mine, the metamorphic contact iron are deposit, located in Kowloon peninsula, has been operated since 1906. However, in 1952 as the grade of the are was getting gradually low, the Japanese mills refused to take it successively unless the, grade up operations were under control of our company. In 1953 the Mutual Trust Co. Ltd. which is the ownner of the mine asked our company to operate the mine as the joint venture, and the agreement was concluded in that year. The first processing plant having the capacity 120, 000 tons of concentrate per annum, was completed and started its production in 1954. In 1959 the open cast was mined out and the mining site had to be removed into the under ground. At the same time the processing plant was capacitied up partially. In 1963 the 110M adit was driven through. In 1965 the production was raised up to 150, 000 tons of concentrate per annum, and the facilities and equipments of the plant have been increased accordingly.