Salt lakes and salt minerals

Metering component

mineral

Mining method

Industrial indicators

Water soluble series is harmful

Maximum allowable content of components

Boundary grade %

Minimum work

Industry grade%

Minimum recoverable thickness m

Stone removal thickness m

NaCl

Stone salt

brine

≥5

≥10

10

Salt (×10 ⁶ ):

Ω(βa)≤15,

Ω(F)≤5,

Ω(Pb)≤1,

ω(As)≤0.5

solid

≥30

≥50

≥15

≥30

2 to 20

2

≥30

≥50

0.3 to 0.5

0.3 to 0.6

KCl

Potassium salt

brine

≥0.3～0.5

≥0.5～1

ω(Ca)≤0.5%

ω(Mg)≤0.3%

ω(SO ₄ )≤2.5%

ω(NaCl)≤5%

solid

Pit mining

≥5

≥8～10

0.5

0.5

Open pit mining

≥3

≥8

0.3 to 0.5

0.5

ω(Fe)≤0.04%

ω(Ca)≤1.5%

ω(Mg)≤0.5%

ω(Cl)≤1.5%

Na ₂ SO ₄

Glauber's salt , anhydrous thenardite

brine

≥3

≥5

10

solid

Drilling water soluble

≥30

≥45

Open pit mining

≥30

≥45

0.1 to 0.3

0.2 to 0.6

Glauber

solid

Pit mining

≥10～15

≥15～20

1 to 2

1

Open pit mining

≥8

≥20

0.1 to 0.3

0.2 to 0.6

Ω(Fe)≤0.02%

ω(NaCl)≤1.2%

ω(Na ₂ SO ₄ )≤0.1%

White sodium vanadium

solid

Open pit mining

≥25

≥35

0.5 to 0.1

0.2 to 0.6

Na ₂ CO ₃ +NaHCO ₃

Petrone

brine

≥2

≥3.5

10

solid

Drilling water soluble

≥17

≥25

0.1

0.5

Pit mining

≥17

≥25

0.7

0.02

Open pit mining

≥20

≥25

0.6

0.1

MgCl ₂

Magnesium salt

brine

≥2

≥5

Ω(Ba)≤0.001%

Ω(As)≤0.002%

ω(Pb)≤0.001%

ω(SO ₄ )≤0.01%

solid

Open pit mining

≥10

≥20

0.5

0.5

B ₂ O ₅

boron

brine

400mg/l

1000mg/l

Ω(Fe)≤0.02%

solid

Open pit mining

≥1.5

≥2

0.3

0.6

LiCl

Lithium mine

brine

150mg/l

300mg/l

Li ₂ O

Lithium mine

solid

Open pit mining

≥0.06

≥0.2

0.5

0.5

MgO

Water magnesite

solid

Open pit mining

≥33

≥34.5

1.0

1.0

NaNO ₃

Sodium saltpeter

solid

Open pit mining

≥2

≥5

Note 1: The salt lake brine is irregular and the minimum thickness can be harvested; 2: The industrial index of salt lake solid mineral suitable for open-air water-soluble mining can be appropriately reduced; 3: Drilling water-soluble mining, due to different ore quality, water-soluble energy and mining methods, the available thickness The requirements for removing the thickness of the stone are very different, and each mining area can be determined according to the above factors; 4: K2SO4 and MgSO4 industrial indicators can be converted into KCl and MgCl2 indicators, and the conversion factors are 1.1687 and 1.2642 respectively; 5: various industrial indicators are It can be adjusted according to the results of the ore processing test. A variety of salt minerals (companion), and can be comprehensively utilized, their industrial indicators can be appropriately reduced

Component

KCl

MgCl ₂

NaCl

LiCl

Li ₂ O

Na ₂ SO ₄

B ₂ O ₃

Na ₂ CO ₃

Br ^-

Rb ₂ O

Cs ₂ O

I ^-

content

solid

1%

5%

20%

0.06%

8% to 20%

0.2% to 0.5%

10% to 15%

0.02%

0.01%

0.005~0.1mg/l

brine

0.2%

1%

5%

15 mg/l

3%

400 mg/l

1.5%

50～60mg/l

50mg/l

20～30 mg/l

15～20 mg/l