HOME    About this site    mypage    Japanese    library    university    Feedback

University of the Ryukyus Repository >
Faculty of Science >
Bulletin >
Bulletin of Arts & Science Division, University of the Ryukyus. Mathematics and sciences >
No.5 (1962/04) >

 
Title :琉球諸島に産するリン鉱石の工業的利用に就て
Title alternative :On the Industrial use of the Phosphate Rocks produced in the Ryukyu Islands
Authors :兼島, 清
Authors alternative :Kaneshima, Kiyoshi
Issue Date :Apr-1962
Abstract :The industrial use of the phosphate rocks in the Ryukyu Islands were studied and following results were obtained: (1) It may be possible to use as powdered phosphate fertilizer because of the following reasons: (a) The phosphate rocks in the Ryukyu Islands contain, as compared with the rocks in the others, less fluorine and much more zinc, manganese, and copper. (b) The phosphate rocks in,.. the Ryukyu Islands have a high value of 2% citric acid soluble phosphoric acid. (2) The high value of 2 % citric acid soluble phosphoric acid of the fused phosphate produced from Ryukyu's phosphorite and serpentine makes the phosphate rocks in the Ryukyu Islands an invaluably useful phosphorite as a raw material of fused phosphate fertilizer.
Type Local :紀要論文
ISSN :0557-577X
Publisher :琉球大学文理学部
URI :http://hdl.handle.net/20.500.12000/21809
Citation :琉球大学文理学部紀要 理学篇 no.5 p.10 -15
Appears in Collections:No.5 (1962/04)

Files in This Item:

File Description SizeFormat
No5p010.pdf596KbAdobe PDFView/Open