Results 141 to 150 of about 6,533 (216)

Cassegrain Solar Concentrator System for ISRU Material Processing [PDF]

, 2012
A 0.5 m diameter Cassegrain concentrator was constructed as a means of providing highly concentrated sunlight for the demonstration processing of lunar simulated regolith and other NASA In-Situ Resource Utilization Project (ISRU) reaction processes.
Castle, Charles, Colozza, Anthony J., Macosko, Robert, Mulherin, James, Sacksteder, Kurt, Suzuki, Nantel H.   +5 more
core   +1 more source

Influence of High-Temperature Liquid on Phase Composition and Morphology of Carbothermal Reduction-Nitridation Products from Coal Gasification Slag. [PDF]

Materials (Basel), 2020
Yuan H, Yin H, Tang Y, Shuai H, Xin Y, Pu X.   +5 more
europepmc   +1 more source

THERMODYNAMICS OF CARBOTHERMAL REDUCTION PROCESS COPPER SLAG

Journal of Chemical Technology and Metallurgy
The article analyses the thermodynamic laws of processing iron-based compounds contained in copper production slag using the method of carbothermic recovery. Evaluation of the probable direction of carbothermic reactions occurring between oxidized compounds and carbon in the slag was carried out by changing the thermodynamic values of the system.
Sokhibjon Matkarimov, Sunnatillo Gaibnazarov, Malika Saidova, Ural Akramov, Farrukh Tukhtamurodov, Nasiba Yuldasheva   +5 more
openaire   +1 more source

Carbothermic reduction of metal sulfides

, 2002
Diversos metales no ferrosos como el cobre, zinc, plomo, molibdeno, níquel, cobalto, antimonio, etc. se producen principalmente a partir de sulfuros metálicos. Los métodos pirometalúrgicos convencio- nales de tratamiento de concentrados de sulfuros para la producción de metales incluyen una o más etapas de oxidación de dichos sulfuros.
openaire   +1 more source

Notes on lunar ilmenite [PDF]

Opaques (mostly ilmenite) make up 0 to 5 percent of highland rocks, 1 to 11 percent of low-Ti mare basalts, and 10 to 34 percent of high-Ti mare basalts (Carter 1988). Apollos 11 and 17 sampled high-Ti basalts.
Hutson, M. L.
core   +1 more source

Lunar resource evaluation and mine site selection [PDF]

Two scenarios in this evaluation of lunar mineral resources and the selection of possible mining and processing sites are considered. The first scenario assumes that no new surface or near-surface data will be available before site selection (presumably ...
Bence, A. Edward
core   +1 more source

β-Si₃N₄ Microcrystals Prepared by Carbothermal Reduction-Nitridation of Quartz. [PDF]

Materials (Basel), 2019
Zhang M, Chen Z, Huang J, Huang S, Hu Z, Feng Z, Xiong Q, Li X.   +7 more
europepmc   +1 more source

Preparation of Biomorphic Porous SiC Ceramics from Bamboo by Combining Sol-Gel Impregnation and Carbothermal Reduction. [PDF]

Polymers (Basel), 2019
Hung KC, Wu TL, Xu JW, Wu JH.
europepmc   +1 more source

Preparation of TiCl₄ from Ilmenite Concentrates via Carbothermal Reduction and Boiling Chlorination for Different Carbon Proportions. [PDF]

ACS Omega
Zhu F, Zhang P, Peng W, Zhou A, Wang J, Li J, Qiu K.   +6 more
europepmc   +1 more source