Political and commercial geology and the world's mineral resources
Science
Political and commercial geology and the world's mineral resources
Geology, Economic; Mines and mineral resources
It is clear that there is not likely to be a shortage of the ordinary
grades of iron ore in the United States. Reserves of high-grade ores,
however, are being gradually depleted, and high-grade ores from foreign
countries will find an increasingly ready market. American capital
controls a large reserve of high-grade iron ore in Brazil. Much of the
Brazilian ore averages about 68 per cent. in metallic iron and is very
low in phosphorus, making it an exceedingly desirable raw material
for the manufacture of special iron and for mixing with lower-grade
domestic ores. Doubtless much of the Brazilian ore will go to Europe,
as British and other foreign holdings of this ore are extensive.
However, it is highly desirable that a certain proportion of the ore
should be diverted to American furnaces.
=Germany.=--The annual consumption of iron ore in Germany just before
the war was about 40 million tons, and the maximum annual output at
this time, including more than 7 million tons from Luxemburg, was only
about 34 million long tons. In order to supply German furnaces it was
necessary, therefore, to import more than 6 million tons of iron ore
from foreign countries. More than 58 per cent. of the iron ore mined in
Germany has come from the Lorraine district. The production from German
iron mines outside of the Lorraine district amounted to 6,906,809 tons
in 1913. The production of pig iron during that year was 19,004,022
tons.
The pre-war imports of iron ore into Germany were large, amounting to
nearly 14 million tons in 1913; against these the exports were somewhat
more than 2 million tons.
The iron ore imported from Sweden is mainly high-phosphorus ore from
the mines of Swedish Lapland and central Sweden. This is especially
adapted to the manufacture of pig iron for the Thomas process, much
used in Germany. Most of the ores from the Lorraine district are
slightly too low in phosphorus to be suitable for the Thomas process;
and Swedish high-phosphorus ores, phosphate rock, and phosphatic slags
are in places mixed with Lorraine ore to raise the phosphorus content.
A considerable amount of low-phosphorus iron ore used in the
manufacture of low-phosphorus pig iron is also imported from Sweden,
and a larger amount of this ore is imported from Spain. This material
is used in Germany for the manufacture of pig iron to be used in making
acid open-hearth steel.
Since Germany has lost the Lorraine iron fields, the remaining domestic
iron mines will be able to supply less than 20 per cent. of the
requirements of iron ore for the German furnaces. However, it is likely
that Germany will continue to receive most of her supplies from the
Lorraine fields, in which German holdings at present predominate over
French holdings and will probably continue to predominate.
Public-domain text, read in full here on John Shaqi.
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