Assertion: antimony | /r/HasProperty | obtained
Facets:
value: from valentinite
type: OTHER
value: usually
type: DEGREE
value: from the ores stibnite
type: LOCATION
value: from the mineral stibnite
type: OTHER
value: by heating the ore
type: MANNER
value: from its sulfide ores
type: OTHER
value: chiefly
type: DEGREE
Source sentences:
text: It is sometimes found free in nature, but is usually obtained from the ores stibnite (Sb 2 S 3 ) and valentinite (Sb 2 O 3 ).
text: To obtain high-purity antimony, zone refining is carried out in an atmosphere of inert gas, or antimony is obtained from previously purified antimony trioxide or antimony trichloride.
text: It is sometimes found free in nature, but is usually obtained from the ores stibnite (Sb 2 S 3 ) and valentinite (Sb 2 O 3 ).
text: It can sometimes be found free in nature but is usually obtained from the minerals stibnite and valentinite.
text: It is also obtained from the mineral stibnite (antimony sulfide) and commonly is a by-product of lead-zinc-silver mining.
text: To obtain high-purity antimony, zone refining is carried out in an atmosphere of inert gas, or antimony is obtained from previously purified antimony trioxide or antimony trichloride.
text: Antimony is obtained mainly from its sulfide ores, and it vaporizes at low temperatures.
text: Antimony is found in trace quantities in nature but is chiefly obtained from mineral ores such as valentinite (Sb2O3) and stibnite (Sb2S3).
text: If the ore contains 45% to 60% antimony by weight, antimony is obtained by heating the ore, also known as liquidation.
text: It is sometimes found free in nature, but is usually obtained from the ores stibnite (Sb2S3) and valentinite (Sb2O3).