Other Minerals

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Lepidolite Lepidolite is the most common lithium mineral and an important mineral for refining lithium. It is a basic aluminosilicate of potassium and lithium, which is one of the mica minerals. Lepidolite is generally only produced in granite pegmatite, the color is purple and pink and can be light to colorless, with pearl luster, in the form of short cylinders, small sheet aggregates or large plate crystals. We have lepidolite for sale. The main component of lithium mica , the main component is KLI for 1.5 of Al for 1.5 [an AlSi. 3 O 10 ] (F., OH) 2, containing Li 2 O is 1.23- 5.90%, often containing rubidium and cesium. Monoclinic system. It is often a fine scale-like assembly. The nature hardness is 2-3, the specific gravity is 2.8-2.9, and the bottom cleavage is very complete. The color is purple and pink and can be light to colorless, with pearl luster, and it is a short cylinder, small sheet assembly or large plate crystal. Lepidolite has the general cleavage of mica and purple to pink color. When melted, it can foam and produce a deep red lithium flame. Insoluble in acid, but after melting, it can also be affected by acid. Application of lepidolite is one of the main raw materials for extracting rare metal lithium. Lepidolite usually contains rubidium and cesium and is also an important raw material for extracting these rare metals. Lithium is the lightest metal with a specific gravity of 0.534. It can produce lithium-6 required for thermonuclear. It is an important fuel for hydrogen bombs, rockets, nuclear submarines, and new jet aircraft. Lithium can absorb neutrons and act as control rods in atomic reactors. It is used as a red luminous agent for signal bombs and flares in military affairs and as a thick lubricant for aircraft. In metallurgy, light alloys made of lithium and pure agents for metal products are used.

Biotite Biotite mainly occurs in metamorphic rocks, granite and other rocks. The color of biotite is from black to brown or green, with glass luster. The shape is plate and column. In recent years, biotite has been widely used in stone paint and other decorative coatings.     The single crystal of wancheng biotite is short columnar and plate-shaped, with a hexagonal cross-section and scaly aggregate. Brown or black. The color becomes darker with the increase of iron content. Other optical and mechanical properties are similar to those of muscovite, with a relative density of 2.7-3.3.

Sericite 1. Main properties: Sericite is a new type of industrial mineral with a layered structure, which is a subspecies of muscovite in the mica family with extremely fine scales. The density is 2.78-2.88g / cm 3, the hardness is 2- 2.5, and the diameter-thickness ratio is> 50. It can be split into very thin flakes, with silk luster and smooth feeling, full of elasticity, flexibility, acid and alkali resistance, strong electrical insulation, heat resistance (up to 600 o C), and low coefficient of thermal expansion, and The surface has strong UV resistance, good abrasion resistance and wear resistance. The elastic modulus is 1505-2134MPa, the tensile strength is 170-360MPa, the shear strength is 215-302MPa, and the thermal conductivity is 0.419-0.670W. (MK) -1. The main component is a potassium silicate aluminosilicate mineral, which is silver-white or grayish-white, in the form of fine scales. Its molecular formula is (H 2 KAl 3 (SiC4) 3. The mineral composition is relatively simple and the content of toxic elements is extremely low, No radioactive elements can be used as green materials.   Wancheng is an mica powder manufacturer. 　       2. Physical and chemical indexes of sericite powder Dry silk  mica Main physical indicators BaiDu(%) PH value Loss on ignition (%) Moisture (%) > 75 6-8　 4-6 <0.8 Main chemical composition SiO 2 Al 2 O 3 K 2 O Fe 2 O 3 S, P 60-75 13-17 4-5 <1.8 0.02-0.03 Wet silk  mica　 Main physical indicators BaiDu(%) Sand content (%) Attached water (%) PH value Loose density g / cm 3 > 80 <0.5 <0.5 6-8　 0.4-0.5 Main chemical composition SiO 2 Al 2 O 3 K 2 O Fe 2 O 3 Na 2 O 50-65 19-29 6-11 <1 <5 3.Main specifications: 100 mesh, 200 mesh, 325 mesh, 400 mesh, 600 mesh, 800 mesh, 1250 mesh, 2000 mesh, etc.

Muscovite 1. Characteristics and uses of mica powder Mica has muscovite, biotite, phlogopite, lepidolite and other types. Muscovite is the most common mica. Mica has high insulation performance, heat resistance, acid resistance, alkali corrosion resistance, and small thermal expansion coefficient. No matter how broken it is, it is in the form of flakes, with good elasticity and toughness. The mica powder has a large diameter-to-thickness ratio, good sliding properties, strong covering performance and strong adhesion. Wancheng Mica powder is widely used in the fields of insulation, heat insulation, paints, coatings, pigments, fire protection, plastics, rubber, ceramics, oil drilling, welding electrodes, cosmetics, aerospace, etc. 2, Mica chemical composition chemical composition SiO 2 Al 2 O 3 Fe 2 O 3 CaO Na 2 O MgO TiO 2 K 2 O H 2 O Content % 45-48 20-33 2-5 0.03-0.05 0.8-1.5 0.69-0.48 0.06-0.65 7-9.8 0.01-0.13 3, The physical properties of Muscovite proportion Refractive index PH value BaiDu Diameter to thickness ratio Moh's hardness Temperature resistance Loss on ignition Moisture 2.87 1.66 7-8 60-80 ＞60 2.75 1000 ℃ 2.8-3% ＜1% 4. Main product specifications 1, Wet ground mica powder specification Sieve residue % Sand content % Bulk density Water content % Loss on ignition % Whiteness ° Diameter to thickness ratio 100 mesh ＜5.0 ＜0.5 <0.28 g / cm 3 ＜1.0 ＜4.3 ＞70 ＞70 200 mesh ＜5.0 ＜0.5 <0.25 g / cm 3 ＜1.0 ＜4.3 ＞70 ＞70 325 mesh ＜5.0 ＜0.2 <0.25 g / cm 3 ＜1.0 ＜4.3 ＞70 ＞70 400 mesh ＜10.0 ＜0.1 <0.23 g / cm 3 ＜1.0 ＜4.3 ＞70 ＞70 2, Dry grinding mica specification Sieve residue % Sand content % Bulk density Water content % Loss on ignition % Whiteness ° Diameter to thickness ratio 20 mesh ＜5.0 ＜1.0 <0.35g / cm 3 ＜1.0 ＜4.3 ＞60 40 mesh ＜5.0 ＜2.0 <0.35g / cm 3 ＜1.0 ＜4.3 ＞60 60 mesh ＜5.0 ＜3.0 <0.35g / cm 3 ＜1.0 ＜4.3 ＞60 100 mesh ＜5.0 ＜3.0 <0.30g / cm 3 ＜1.0 ＜4.3 ＞50 ＞60 200 mesh ＜5.0 ＜0.5 <0.30g / cm 3 ＜1.0 ＜4.3 ＞60 ＞60 325 mesh ＜5.0 ＜0.2 <0.25g / cm 3 ＜1.0 ＜4.3 ＞60 ＞60 400 mesh ＜10.0 ＜0.1 <0.23g / cm 3 ＜1.0 ＜4.3 ＞70 ＞60 600 mesh ＜10.0 ＜0.1 <0.23g / cm 3 ＜1.0 ＜4.3 ＞70 ＞70 800 mesh ＜10.0 ＜0.1 <0.23g / cm 3 ＜1.0 ＜4.3 ＞70 ＞70 1000 mesh ＜10.0 ＜0.1 <0.23g / cm 3 ＜1.0 ＜4.3 ＞70 ＞70

We are China Xuzhou carbon co, ltd. Now we introduce you with our electrode paste. Electrode paste is used in closed electric smelting furnace as continuous self- baking electrode to produce calcium carbide, ferroalloy and so on. During the furnace operation, electrode paste acts as current conductor. Our electrode paste has following characteristics: 1. Lower ash content; 2. Acurate dosing and stable volatile content; 3. Good electric and thermal conductivity and the sintering speed apropriate to that of consumption of working end; 4. Smelting at lower temperature with certain fluidity and homogeneous composition; 5. High resistance to high temperature, oxidation and thermal shock, low electric resistance and high mechanical strength after sintering; The properties of electrode paste are as follows: Ash <5% Volatile material 12-14% Compressive strength> 18Mpa Electric resistivity <70micro ohm m Bulk density > 1.38g/cm3 size :100*90*60mm We can offer electrode paste as your special properties demand. Our electrode paste export to Latin America, Mid-East, South-East Asia, etc.

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