Basic Study for Production of Light Weight Aggregate from Leaching Residue of Manganese Nodule
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- OSAKI Kazuo
- National Research Institute for Pollution and Resources, MITI
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- HAMADA Yoshihisa
- National Research Institute for Pollution and Resources, MITI
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- ICHIJO Michio
- 公害資源研究所資源第3部
Bibliographic Information
- Other Title
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- マンガン団塊浸出残渣の軽量骨材化に関する基礎的研究
- マンガン ダンカイ シンシュツ ザンサ ノ ケイリョウ コツザイカ ニ カンス
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Abstract
In order to establish available process for utilization of manganese nodule production light weight aggregate from their residue which were treated with hydrochloric acid solution have been investigated.<BR>The relation of some properties to bloating of pelletized sample have been inquired by chemical analysis, X-ray diffraction analysis, size distribution and by measuring specific gravity, water absorption, strength under compression etc. Further, the effects of bentonite to bloating of pelletes have been also examined.<BR>The main results obtained were summarized as follows;<BR>1) By proper arrangement of bentonite, the chemical components were found to be in the Riley expansion range of system SiO2-Al2O3-Flux.<BR>2) The mineral contents of residue were primarily quartz, with the presence of feldspars and magnetite, and these ofb entonite were primarily montomorillonite, with quartz and feldspars. Furthermore, mineral constituents of bloated pellets of the mixture of residue and bentonite were cristobalite, together with feldspars and iron oxide.<BR>3) In the case of residue, the contraction of pelletes started at 750 C, and larger contractibility was showed with risingof temperature from 1000°to 1250°. In the case of bentonite, the expansion of pelletes started at 850°, and larger expansibility was showed with rising of temperature from 1000°.<BR>When the rising rate of heating temperature was 80°/min and bloating temperature was 1250°, and expansion ratio of mixed pelletes (residue 60%+bentonite 40%) was about 60%. On such bloating condition for pelletes, the production of light weight aggregates could be expected.
Journal
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- Journal of the Mining and Metallurgical Institute of Japan
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Journal of the Mining and Metallurgical Institute of Japan 103 (1197), 793-798, 1987
The Mining and Materials Processing Institute of Japan
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Details 詳細情報について
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- CRID
- 1390001205981553536
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- NII Article ID
- 130007255203
- 40002903169
- 10004458662
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- NII Book ID
- AN00188932
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- ISSN
- 21856729
- 03694194
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- NDL BIB ID
- 3156510
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed