Results 101 to 110 of about 1,079 (210)

Spatiotemporal mapping of (ultra‐)mafic magmatic mine areas: Implications of economic and political realities in China

open access: yesDeep Underground Science and Engineering
The spatiotemporal extension/expansion of mine areas is affected by multiple factors. So far, very little has been done to examine the interaction between mine areas and political or economic realities.
Heling Li   +5 more
doaj   +1 more source

Dehydrogenation of N-Propanol to Propionaldehyde over a copper chromite catalyst

open access: yes, 1998
Methyl methacrylate (MMA) is widely used for a range of polymer products. MMA can be produced from propionaldehyde via the BASF process. n-Propanol is readily available 'in South Africa as a byproduct of Fischer-Tropsch synthesis.
Hop, Marina
core  

The Mineralogy of Slags from a Secondary Copper Refinery

open access: yes, 1989
The mineralogy of three slags from a domestic secondary copper refinery were studied by applied mineralogical techniques to determine the: 1) phases present, 2) phase chemistry, 3) phase abundance, 4) associations, 5) crystalline habit, 6) grain size, 7 ...
Robertson, D. G. C.   +2 more
core  

The Chromite Deposits of Stillwater and Sweetgrass Counties, Montana

open access: yes, 1929
In writing this report, two objects were kept in mind, (1) to explain, if possible, the origin of the chromite deposits found in Sweetgrass and Stillwater Counties, and (2) to bring up to date all information on these deposits which had thus far been ...
Sahinen, Uuno
core  

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