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 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 Welding Components ,Steel Welded Assemblies ,Laser Welding Subassembly,Steel Welded Assembly Ningbo Metal Sharing Supply Chain Management Co., Ltd , https://www.zenlesmart.com
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.