Solid fuel Moon rockets (was Economics)

>>>>>> 4FeTiO3 + Concentrated Sunlight -> 4Fe+ , Ti+, 3O+
>>
>> Why not build parabolic mirrors and heat the compounds until they
>> disassociate into their constituent elements?>>>
>
> [snip] The biggest problem with this process would be finding
container materials that can withstand temperatures in excess of
3400C. Even carbon melts at 3527C! <

I thought one of the advantages of the O'Neill system was that the
lunar materials could be processed in orbit, where a container is not
needed.>>>>

The problem is, that at these temperatures, the iron oxide would simply
evaporate. Of coarse, we could discociate the iron (ii)oxide within a sealed
container, using an electric arc between two tungsten electrodes. The Local
heating within the FeO would be so great, that it would discociate. The
container itself would remain at mush lower temperatures.

Tony

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