Zobrazeno 1 - 10
of 136
pro vyhledávání: '"Tadashi Chida"'
Publikováno v:
Journal of MMIJ, Vol 133, Iss 12, Pp 270-276 (2017)
This paper describes channeling of liquid flow in copper ore heaps used for chemical or bio- leaching. The size of packed beds utilized as heap is 5 by 5 meters and the height is 3.5 or 5 meters. Tracer tests with lithium as tracer were carried out t
Externí odkaz:
https://doaj.org/article/52d04ee8dde4416db9826c3f4f0fe70b
Autor:
Mitsue YADA, Shintaro NAKANO, Tadashi CHIDA, Hiroki TANIGUCHI, Osamu ISHIHARA, Satoru TOYOSAWA
Publikováno v:
Japanese Journal of Oral and Maxillofacial Surgery. 68:88-93
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d6e9f1e58ff2372df34b26ccebd137e2
https://doi.org/10.5794/jjoms.68.88
https://doi.org/10.5794/jjoms.68.88
Publikováno v:
Japanese Journal of Oral and Maxillofacial Surgery. 67:77-82
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::66925a477d194ca961d95075aef1abc8
https://doi.org/10.5794/jjoms.67.77
https://doi.org/10.5794/jjoms.67.77
Publikováno v:
Solid State Phenomena. 262:99-102
JOGMEC has been carrying out the study on primary copper sulfide ores leaching for recovering copper economically and efficiently by heap leaching. In our study, we have been using the primary copper sulfide ore produced in an IOCG deposit. The ore i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9afd8e3391c3869291a39ced195c5d1a
https://doi.org/10.4028/www.scientific.net/ssp.262.99
https://doi.org/10.4028/www.scientific.net/ssp.262.99
Publikováno v:
Advanced Materials Research. 1130:304-307
Chalcopyrite is the most abundant copper mineral but notorious as its slow dissolution kinetics in hydrometallurgical processes due to the formation of passivating layers on the surface of the mineral. We tried to improve chalcopyrite leaching rate t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b04aedcd5d9afc5827a48b08e9a14e61
https://doi.org/10.4028/www.scientific.net/amr.1130.304
https://doi.org/10.4028/www.scientific.net/amr.1130.304
Publikováno v:
Advanced Materials Research. 1130:355-358
Copper ore is classified into three groups; primary copper sulfide, copper oxide and secondary copper sulfide. Leaching copper from primary copper sulfide, such as chalcopyrite, with sulfuric acid takes longer time than from copper oxide and secondar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::74e41ba9b2221d2605037c31d4387e8a
https://doi.org/10.4028/www.scientific.net/amr.1130.355
https://doi.org/10.4028/www.scientific.net/amr.1130.355
Publikováno v:
Advanced Materials Research. :353-356
This study reports the effect of sulfuric acid concentration on chalcopyrite chemical leaching in very simple H2SO4 solution systems ranging from 23g/L to 30g/L, with 2.5% chalcopyrite concentrate at 30°C. Copper extraction from chalcopyrite increas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7529e721efed142bc4a7c5dc597d0872
https://doi.org/10.4028/www.scientific.net/amr.71-73.353
https://doi.org/10.4028/www.scientific.net/amr.71-73.353
Publikováno v:
Journal of MMIJ. 125:165-170
This paper described that relationship between Acidithiobacillus feroooxidans T23-3 and fungus TEF1-1 in an enrichment culture. In order to evaluate the relationship, some culture experiments using cell-free extracts from T23-3 and TEF1-1 were carrie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf719f375c9fee48e67e32010cb32ec7
https://doi.org/10.2473/journalofmmij.125.165
https://doi.org/10.2473/journalofmmij.125.165
Autor:
Seongjin Joe, Muneyuki Tamura, Tadashi Chida, Masatoshi Sakoda, Yoshiharu Kida, Hidekatsu Nakamura
Publikováno v:
Journal of MMIJ. 125:115-120
The chemical leaching of chalcopyrite was carried out to investigate the effects of temperature, ferrous ions and pH values on the leaching rate. The copper extraction of chalcopyrite attained 94% after 11 days when the initial pH value was 0.7 and t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98794ebd74a3d0f5032baed7d462514e
https://doi.org/10.2473/journalofmmij.125.115
https://doi.org/10.2473/journalofmmij.125.115
Polysulfide reduction using sulfate-reducing bacteria in a photocatalytic hydrogen generation system
Publikováno v:
Journal of Bioscience and Bioengineering. 106:219-225
A hydrogen generation process using photocatalytic reactions has been proposed. In this process, hydrogen sulfide is a source of hydrogen and is turned into polysulfide. In order to establish the cyclic operation of a photocatalytic hydrogen generati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8a475f13257c08380cc19016f837c8b6
https://doi.org/10.1263/jbb.106.219
https://doi.org/10.1263/jbb.106.219