Patent classifications
C
CHEMISTRY; METALLURGY
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C03
GLASS; MINERAL OR SLAG WOOL
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C03B
MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
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37/00
Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
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C03B37/01
Manufacture of glass fibres or filaments
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C03B37/012
Manufacture of preforms for drawing fibres or filaments
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C03B37/014
made entirely or partially by chemical means; , e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
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C03B37/0144
Means for after-treatment or catching of worked reactant gases
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C03B37/0144

METHOD FOR RECOVERING GERMANIUM
20240342650 · 2024-10-17 ·

A method for recovering germanium from exhaust gas in a manufacturing step of an optical fiber preform, the method includes: a first step of allowing the exhaust gas to pass through a separation device and separating germanium from the exhaust gas. The exhaust gas is gas exhausted in a dehydration and consolidation step of optical fiber preform manufacturing.