Chalk powder / Microcalcite By TIMUSH EXPORTS LLC,

产品规格

Brand Name: Microcalcite

详情

Specifications

Place of Origin: Uzbekistan

Model Number: ***9

Size: from 2 Micron till **0 Micron

Color: Colorless, white, pink, yellow, brown

Category: Carbonate minerals

Formula (repeating unit): CaCO3

Strunz classification: 5.AB.*5

Crystal system: Trigonal

Crystal class: Hexagonal scalenohedral (3m), H-M symbol: (3 2/m)

Space group: R3c

Unit cell: a = 4.***6(2) , c = *7.***0(*1) ; Z = 6

Crystal habit: Crystalline, granular, stalactitic, concretionary, massive, rhombohedra

Twinning: Common by four twin laws

Cleavage: Perfect on [***1] three directions with angle of *4° *5'

Fracture: Conchoidal

Tenacity: Brittle

Mohs scalehardness: 3 (defining mineral)

Luster: Vitreous to pearly on cleavage surfaces

Streak: White

Diaphaneity: Transparent to translucent

Specific gravity: 2.*1

Optical properties: Uniaxial (-)

Refractive index: nω = 1.***1.**0, nε = 1.**6

Birefringence: δ = 0.***0.**4

Solubility: Soluble in dilute acids

Other characteristics: May fluoresce red, blue, yellow, and other colors under either SW and LW UV; phosphorescent

Packaging & Delivery
Packaging Details:
1ton bags, 1.2ton bags, 1.*5ton bags, **0L bags or according to customers' requirements.

Delivery Detail:
****5d ays after confirming, if urgent time can be earlier.

Microcalcite - a fine product of a carbonate group, which is prepared by mechanically grinding the marble. According to the adopted at the "micronized" experts terminology considered disperse geologic materials with fractions of less than **0 microns in size.
According to the physical-chemical properties, and the peculiarities of microcalcite favorably with other carbonate fillers;

It has a high content of calcite;
High-strength pellets;
Low porosity;
Low moisture absorption;
High refraction;
Low-water-soluble salts;
Highly soluble in mineral acids;
High resistance to UV radiation;

Increased rates of whites (in the fields of industrial white marble reaches ****6%, occasionally in some places - *8% White chalk is usually no more than ****6%.)
Using microcalcite can enhance and improve the quality of consumer end products. The use microcalcite does not require changes in production technology.
Scope microcalcite in the industry:
The main applications microcalcite in the industry are all areas of traditional use of carbonate fillers, this production:

All kinds of paint
Plastics
Dry construction mixtures
Rubber products
Floor coverings and linoleum
Paper
Drilling fluids
Ceramic tiles
Insulation materials
Scouring powders and pastes
Agglomerates and artificial stone
Roofing materials and other.
Paints and varnishes:

Ratio carbonate filler is about *0% (including pigment). Used to replace expensive resins and polymers to improve the color, brightness correction and color shades. It allows you to improve the quality and lower the price of the product.
The particle size of ***0 microns.
Important whiteness and hydrophobic treatment.

Plastics:
The polymer industry - one of the largest consumers of carbonate fillers. This production of PVC, polyester thermosets, polyolefins, and others. The proportion of carbonate filler in plastics may be up to *0%.
Microcalcite use in the manufacture of plastics to reduce costs and make such important qualities as a light resistance, increased hardness, increased resistivity, etc.
average particle size 7.1 microns (PVC - 3.1 micron)
Important brightness for white and colored products.

Paper:
Paper industry - the main consumer of carbonate fillers. The calcium carbonate allows to improve the quality and increase the whiteness, as well as reducing production costs by replacing the glass and pigments. It is also used as a deoxidizer, allowing you to get the desired Ph.
The particle size of **3.5 mm.
Microcalcite mainly used for the production of coated paper, office paper, krtone production, and as a deoxidizer.

Rubber:
The use of calcium carbonate in the manufacture of rubber tires can improve durability, to improve its ability to elasticity in different temperature conditions, to save expensive rubber and other components. calcium carbonate - an essential ingredient in the production of tires to impart galling resistance.

Glass:
In the manufacture of glass carbonate filler is added to the batch to lower the melting temperature in order to save and improve the quality: increasing transparency, heat resistance imparting.

Dry mixes:
In significant quantities microcalcite used for the production of dry construction mixtures for various purposes. The filler content in the CAS can be ****5% (the rest - the glue, pigment, cement or plaster).

Dry multi-plaster;
Fillings;
Putty and grout;
Decorative mixes;
Facade materials;
Whitening and coloring compositions.

In this production itself CCC has been steadily increasing, and the range is expanding.

Carpets and linoleum:
Calcium carbonate enhances the viscosity and amount of latex adhesive used to hold the carpet pile. In the production of linoleum carbonate filler significantly improves the quality of consumer and reduces the cost.

Protective cover:
Microcalcite can be used as anti-corrosion filler in epoxy, alkyd and powder coatings. Comparative tests coatings filled with calcite, barite, talc, and sulfur dioxide in the atmosphere, show that the protective action under these conditions shows only microcalcite.

Portland cement:
It is used in the manufacture of critical concrete and reinforced concrete structures in the construction industry, where there are high demands on the water resistance, frost resistance and durability.
For the oil and gas industry (in marshy and sandy soils) based microcalcite made dimensionally stable lightweight well cement (is a dry mixture of Portland cement-based grouting and facilitating complex supplements).

Drilling fluids:
Drilling fluids protect the borehole wall from fraying and landslides and clean well from cuttings (cuttings). This multi-component solvent-based polymers, and clays. One component is a ground marble (solutions based on the biopolymer and marble chips). Microcalcite also used as a drilling fluid weighting agent carbonate (density solutions to improve the oil-based drilling oil and gas wells), the particle size can vary from *0 microns to 1 mm.
Production of tiles, roofing materials, clinker. Production of self-leveling floors. As fertilizer - for liming acid soils. In medicine and cosmetic industry.

国家:	Uzbekistan
型号:	8009
离岸价格:	88 / Metric Ton （面議）获取最新报价
位置:	Uzbekistan
最小订单价格:	88 per Metric Ton
最小订单:	500 Metric Ton
包装细节:	bags, wagoon
交货时间:	15-25 days
供应能力:	5000 Metric Ton per Day
付款方式:	L/C, T/T
產品組 :	MINERALS