Full resolution (JPEG) - On this page / på denna sida - Second part - X. Manufacturing Industries. By Å. G. Ekstrand, Ph. D., Chief Engineer, Control Office of the Department of Finance - 8. Manufactures of Stone, Clay, Charcoal, and Peat - Gas and Acetylene
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854
x. manufacturing industries of 8wedbn.
Superphosphate and Sulphuric acid Factory, Helsingborg.
A new form of illuminant has been in use since about 1895:
Aoetylene gas. That gas is now generated by a very simple process,
viz. the action of water on calcium carbide, that commodity being itself
obtained by the reduction of lime and charcoal in an electric kiln.
A kilogram (2*2 lbs) of calcium carbide, the manufacture of which at
present may be said to cost less than 25 öre (about 3 d.), produces
about 0*3 cubic meters (somewhat more than 10 cubic feet) of acetylene
gas. This new illuminating agent has spread very rapidly, owing to
its unrivalled luminosity and the facility with which it can be
produced. The requisite electrical power for the manufacture of calcium
carbide is ready to hand at a very cheap rate in the numerous Swedish
waterfalls, and as far as one can now judge there are excellent
prospects of a production of this illuminant on a large scale in Sweden;
unfortunately, in this case as in many others, enterprise has been
hitherto checked by the incompleteness and uncertainty of the law
respecting the rights to turn the waterfalls to account. The new
legislation recently gained (see p. 892), is consequently also here very
welcome. — In 1897 a calcium carbide factory was established at the
Trollhättan falls by G. de Laval (of låte transformed in an experimental
factory for zinc-smelting). Yet several others have been started since.
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