Zobrazeno 1 - 10
of 87
pro vyhledávání: '"M. A. Rhamdhani"'
Autor:
Reiza Z. Mukhlis, Jin-Young Lee, Hee Nam Kang, Nawshad Haque, Mark I. Pownceby, Warren J. Bruckard, M. Akbar Rhamdhani, Rajesh Kumar Jyothi
Publikováno v:
Cleaner Engineering and Technology, Vol 20, Iss , Pp 100742- (2024)
The relatively high concentration of thorium and uranium in monazite poses significant environmental issues in the extraction process of rare earth elements from monazite if left untreated. A new process route that recovers both thorium and uranium a
Externí odkaz:
https://doaj.org/article/15d4fb7068b9457a84eaca8b8e079c35
Publikováno v:
ACS Omega, Vol 8, Iss 42, Pp 39651-39661 (2023)
Externí odkaz:
https://doaj.org/article/d21c43e880ca40a5bce2413580033905
Publikováno v:
International Journal of Technology, Vol 12, Iss 6, Pp 1139-1148 (2021)
This study investigated the effects of adding pulverized biomass from palm kernel shells as a reductant on phase transformation and microstructure during the carbothermic reduction of ilmenite. The ilmenite concentrate was reduced at a temperatur
Externí odkaz:
https://doaj.org/article/907f7b7580a549988eb4dd45031dd70e
Publikováno v:
Heliyon, Vol 8, Iss 10, Pp e11031- (2022)
Electric Arc Furnace Dust (EAFD) is a byproduct of the steelmaking industry, which is one of the most significant and rapidly generated hazardous waste. This material includes recyclable elements such as zinc (Zn) and iron (Fe), exclusively in the fo
Externí odkaz:
https://doaj.org/article/486b2057d9284bac8ab1ede93ae16c46
Autor:
Matthew G. Shaw, Matthew S. Humbert, Geoffrey A. Brooks, M. Akbar Rhamdhani, Alan R. Duffy, Mark I. Pownceby
Publikováno v:
Minerals, Vol 13, Iss 1, p 79 (2023)
When considering the extraction of metals from lunar regolith for use in space, one reductive method of interest is vacuum thermal dissociation. Given the high vacuum environment on the Moon, the sub-liquidus operation of such a process, i.e., sublim
Externí odkaz:
https://doaj.org/article/af318bf43f9e41c7bb686690c96ce1f2
Autor:
Isis R. Ignácio, Geoffrey Brooks, Mark I. Pownceby, M. Akbar Rhamdhani, Willian John Rankin, Nathan A. S. Webster
Publikováno v:
Minerals, Vol 12, Iss 10, p 1253 (2022)
The presence of Ca-ferrite and silico-ferrite-of-calcium-and-aluminium (SFCA) bonding phases is thought to be crucial to maintain sinter quality due to their high reducibility and strength levels. However, new evidence suggests that porosity might be
Externí odkaz:
https://doaj.org/article/9b5cd245713146f89b0833c94efa0052
Publikováno v:
Metals, Vol 12, Iss 6, p 992 (2022)
Generated droplets in a basic oxygen furnace (BOF) process create an interfacial area between metal and slag/emulsion that helps in heat transfer during different stages of the blowing period. Previous studies have developed extensive models to under
Externí odkaz:
https://doaj.org/article/894b956d50504ee8a2cdbe590060baaa
Autor:
A. D. P. Putera, M. S. Islam, K. L. Avarmaa, H. T. B. M. Petrus, G. A. Brooks, M. A. Rhamdhani
Publikováno v:
Metallurgical and Materials Transactions B. 54:1228-1244
An approach in analyzing the kinetics of reacting metallurgical system enhanced by applied electrical potential difference has been proposed. The approach accounted the electrochemical mechanism by combining Fick’s first law and Nernst–Planck equ
Publikováno v:
Metallurgical and Materials Transactions B. 54:996-1016
A systematic isothermal reduction study was carried out on pure PbO pellets using 15 pct H2/85 pct N2 gas. The reduction was carried out at 350 °C to 800 °C at different reaction times (30 minutes to 4 hours) with gas flowrate of 500 mL/min. The ki
Publikováno v:
Metals, Vol 12, Iss 5, p 797 (2022)
The steelmaking process is an energy-intensive multi-stage process, and the step involving the conversion of molten iron to steel, commonly performed in a basic oxygen furnace (BOF), makes an important contribution to greenhouse gas generation. The e
Externí odkaz:
https://doaj.org/article/7193a07c62784ed398e2a2912d09d014