Nickel-containing major mineral ore industry requirements


Major minerals containing nickel

mineral

Molecular formula

Nickel content ( % )

Nickel pyrite

( Fe , Ni ) 9 S 8

Containing Ni22~4 21

Purple sulfur nickel (iron) ore

FeS · Ni 2 S 3 or ( Fe , Ni ) S 4

Containing Ni38.9

Needle nickel ore

NiS

Containing Ni64.7

Hui (iron) nickel ore

Ni 3 S 4 [Ni , Fe] 3 S 4

Contains Ni57.9 , ( 42~55 )1

Nickel-containing pyrrhotite

Fe1-xS ( X=0~0.2 )

Containing Ni0.25~14.22 1

Sulphur nickel ore

NiS 2

Containing Ni 47.8

Red arsenic nickel ore

NiS 2

Containing Ni 43.9

Arsenic ore

Ni 3 As (close to Ni11As 8 )

Containing Ni 54.0 , ( 51.9 )

Arsenic nickel ore

NiAsS

Containing Ni35.4

Dark nickel serpentine

( Ni , Mg )· SiO 2 · nH 2 O

Containing NiO 2 ~47 1

Nickel chlorite

( Ni , Mg ) Si 2 O 6 ( OH ) 4

Containing NiO 2 0~40.2

Green kaolinite

RO · R 2 O 3 ·( 4+n ) SiO 2 or RO · R 2 O 3 ( 3~3.5 ) SiO 2 · nH 2 O

Containing NiO1.1~1.8

Green nickel mine

NiO

Containing Ni78.6

Nickel magnetite

NiFe 2 O 4 or ( Fe , Ni ) 3 O 4

Containing NiO31.9

Nickel vanadium

NiSO 4 · 6H 2 O

Containing NiO28.4

Tourmaline

NiSO 4 · 7H 2 O

Containing NiO26.6

Precious nickel ore

NiCO 3 · 2Ni ( OH ) 2 · 4H 2 O

Containing NiO59.6

Nickel limonite

( Fe , Ni ) O ( OH ) nH 2 O

Containing Ni is low, easy to change, for general content

The ore of the nickel sulphide deposit is divided into: according to the vulcanization rate, that is, the ratio of nickel (SNi) to total nickel (TNi) in the sulphide state:
Primary ore: SNi/TNi>70%
Mixed ore: SNi/TNi 45% to 70%
Oxidized ore: SNi/TNi<45%
Nickel silicate ores by magnesium oxide content is divided into:
Iron ore: MgO <10%
Ferrous magnesia ore: MgO 10% to 20%
Magnesium ore: MgO>20%

The main harmful impurities of nickel ore are copper (in nickel silicate), lead , zinc , arsenic, fluorine, manganese , antimony , bismuth , chromium and the like.
The nickel sulfide ore can be divided into the following three grades according to the nickel content, the rich ore: Ni>3%; the rich ore Ni 1%~3%; the lean ore: Ni 0.3%~1%. Rich ore and lean ore are subject to beneficiation , and special rich ore can be directly smelted into the furnace.
Nickel sulphide deposits generally contain copper, often referred to as copper-bearing nickel sulphide deposits. In nickel ore bodies, copper does not need to be separately defined and delineated. When the nickel grade does not reach the index and copper can form an ore body alone, the indicator is performed by copper. In addition to copper, typically frequently with iron, chromium, cobalt, manganese, platinum group metals, gold, silver, selenium and tellurium, the content of useful components associated these requirements are: Pt, Pd was 0.03g / t; Os Ru, Rh, and Ir are 0.02 g/t; Au is 0.05 to 0.1 g/t, Ag is 1.0 g/t, Co is 0.01%; Se is 0.0005%; and Te is 0.0002%.
In the serpentine , talc and other deposits containing high nickel, often have recycling value, in the evaluation of this type of deposit should pay attention to the comprehensive evaluation of nickel.

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