Patent classifications
C
CHEMISTRY; METALLURGY
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C22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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C22B
PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
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34/00
Obtaining refractory metals
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C22B34/10
Obtaining titanium, zirconium or hafnium
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C22B34/12
Obtaining titanium; or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
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C22B34/1263
obtaining metallic titanium from titanium compounds, e.g. by reduction
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C22B34/1268
using alkali or alkaline-earth metals or amalgams
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C22B34/1272
reduction of titanium halides, e.g. Kroll process
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