pyrophyllite

The main purpose

The use of pyrophyllite and its characteristics are closely related, mainly used as refractory materials, ceramic materials and carving raw materials; Also used for rubber products, cosmetics, pesticides and other fillers and carriers. The new use of pyrophyllite is for paint, it is also a good raw material for siding, and it can also be used to make white cement.

Beautiful color pattern, waxy or pearl luster translucent pyrophyllite, is a rare raw material for carving, such as Shoushan stone, Qingtian stone, blood stone, frozen stone, etc.

Folding work

Making handicrafts has a long history in China and enjoys a good reputation in the world. The famous ones are Shoushan Stone, Fish Brain Frozen, Lantern Frozen, Furong Frozen, Chicken Blood Stone, Qingtian Stone, etc. Handicrafts are incense burner, smoke set, Buddha beads, seals, stone figures, vases, decorative stone and other gorgeous color, dazzling, no crack, strong, moderate hardness, good transparency, less impurities.

Folding ceramics

Production of ceramics, tiles, electric porcelain, sanitary porcelain, refractory inert billet, refractory billet body filler, auxiliary material Al2O3>14~27%

SiO2 is 65 ~ 75%

Fe2O3 < 0.5%

K2O + Na2O < 0.6 ~ 1.2%

Mud fluidity is good, permeability is good, dry body shrinkage, no deformation, small sintering fissure, sintering whiteness 90~96%

Folding to make refractories

Early large pyrophyllite directly cut into bricks, chimneys, hearth, known as refractory or hearth stone. It can be used as raw material for making firebrick, which can be used as lining brick for high steel barrel in converter steelmaking. The pyrophyllite can also be made with clay into refractory mud, refractory coating, refractory concrete aggregate.

Manufacture crucible, cast film coating generally used as refractory material requirements:

Al2O3 15 ~ 30%; SiO2 70 ~ 85%; Fe2O3 < 0.5 ~ 2%; MgO style < 1; CaO < 1; Ignition loss < 5 ~ 7%

Refractoriness 1650 ~ 1690 ° C

Used as the lining brick of steel drum: less quartz; Fe2O3<1%, refractory 1670°C;

Crucible pyrophyllite requirements: refractoriness >1690°C; Al2O3 25% or higher; Fe2O3 0.5% or less

Folded glass

It is the raw material of non-alkali glass and part of medium alkali glass

It is a new type of wall material Al2O3>25%, which can be smelted with quartz and pulled into glass fiber to make glass steel, or made into acid, alkali and high temperature glass cloth

SiO2 < 70%; Fe2O3 < 0.4%; K2O <1%, does not contain coloring metals and impurities, the color of wax stone to light, white cement and limestone mixing, grinding, burning, the production of white cement Al2O3<20% Fe2O3<0.5%

Fold the paper

Used as a filler to increase the density, smoothness, uniformity, softness and penetration of paper. Lamellar pyrophyllite in the production of copperplate paper as a coating for paper filler particle size requirements -0.074mm, whiteness 90%; Paper coating requirements -2μm>90%, > whiteness 90%

Folded plastic

Under the action of coupling agent, the surface organophilic performance is enhanced. The strength and stiffness of the filler used for plastics are -0.15mm>98%, whiteness is 70~80%, moisture is less than 0.5%, and pyrophyllite is 80~85%.

Folding rubber

Used as admixture to make rubber surface smooth, increase wear resistance and strength. Used for cable can prevent bitumen adhesion -0.044mm>98%, Fe2O3<1~1.5%, burning loss <80%, moisture <0.5%, containing pyrophyllite 80~85%.

Fold the other

White cotton cloth, fireproof cloth filler and whitening agent, candy, medicine filler and lubricant, cosmetics ingredients, enamel glaze raw materials, welding electrode admixture color lead filling, increase the writing slip of textile cloth with whiteness >85%, -0.044mm>98%, food and medicine -10μm>99%, arsenic <0.0014%