Yankuang Sheets Industrial Indicators

The atomic structures of strontium and strontium are the same, their geochemical properties are similar, and they coexist in nature, producing extremely complete series of similar minerals. No deposits of pure and pure strontium have been found. According to the genesis (mineralization), the antimony deposit is divided into three categories: exogenous, endogenous and metamorphic deposits. The main types of industrial deposits are granite pegmatite deposits, granite deposits, carbonate rock deposits, alkaline rock deposits, hydrothermal deposits, weathered deposits and river impact deposits. Industrial requirements for antimony ore are often based on the geological characteristics of various deposits, the technical conditions of mining, the composite composition of ore, the treatment process, and the geo-economic characteristics of the deposit. Usually tantalum niobium placer claim containing tantalum and niobium mineral greater than 50g / m 3, of the original deposit containing (Ta + Nb) 2 O 5 > 0.02%, of the carbonate rock in pyrochlore claim Nb 2 O 5 at 0.1% to 0.5%, or higher. The grade of industrial deposits in China is shown in Table 1.
Deposit type
Ta 2 O 5 /Nb 2 O 5
Boundary grade
Minimum industrial grade
(Ta,Nb) 2 O 5 /%
Or Ta 2 O 5/%
(Ta,Nb) 2 O 5 /%
Or Ta 2 O 5/%
Granite pegmatite deposit
≥1.0
0.012~0.015
0.007~0.008
0.022~0.026
0.012~0.014
Alkaline feldspar granite deposit
≥1.0
0.015~0.018
0.008~0.01
0.024~0.028
0.012~0.015
Weathering crust (fergusonite niobium ore or iron ore) Deposit
-
0.008~0.010
Heavy sand grade
80~100g/m 3
0.016~0.020
Heavy sand grade
250~280g/m 3
Primary strontium deposit
-
0.05~0.06
0.08~0.12
River-type sand deposit (tantalite or brown ore)
-
0.004~0.006
Heavy sand grade
40g/m 3
0.01~0.012
Heavy sand grade
≥250g/m 3

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