Tantalum and niobium tantalum and niobium
born together in ore tantalite columbite
common source: which is found in slag from smelting tin.
production.The production of tantalum powder penta oxide and niobium penta oxide of tin slags
1. By นำตะกรัน tin ground thoroughly and then dissolved in aqueous acid hydrogen fluoride an more with sulfuric acid.
2.Methyl isobutyl ketone, then add into the compound of instead of La Lam and niobium is dissolved in the ของเมทิล isobutyl ketone
3. Then the separation of methyl isobutyl ketone.
4.Then add sulfuric acid dilution in niobium to dissolve in acid 5. When I
separate layers of the melt and solution to neutral acid with ammonia to sediment.
6. When it burned to niobium penta oxide occurs
.7. The tantalum dissolve in the layer of methyl isobutyl ketone. Separated by passing steam through to tantalum dissolve in layers of water in the form of a compound H2TaF7
8.When adding potassium chloride solution used for crystallization to substance. K2TaF7 which application you
.* * * ore extraction instead apply slide Columbia carbide. The release of water into the environment therefore must get rid of additives. And adjust water to neutral, also tin slags may have radioactive uranium and thorium, such as aluminum were mixed in.
.
properties of metal tantalum melting 2996 C:
A
a silver grey refractory metals are solid and tough, close to the steel. Bring advantage:
.
- the electronic device in the computer, communication tools, transmitter, insurance timer
-. Do alloys high heat resistance to do some of the fuselage
.- head of ballistic missiles. The equipment in nuclear reactor
- use tantalum oxide coating on the lens to a treasure in the reflection.
the properties of tantalum metal melting 2487 C
- metal niobium with silver grey
.- has a hardness and toughness compared with copper
- lead heat and good electric processing is used to do simple alloy with special properties Such as pressure, toughness, not rust
.Corrosion - resistant and good conductivity at low temperature
- is also used in electronic equipment, nuclear device components of airplanes and missiles.
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