Precious Kyanite Adds Strength to Materials

Kyanite is a kind of natural refractory raw material mineral with high refractoriness and large volume expansion at high temperature. There are parallel stripes on the crystal face. The color is light blue or cyan, bright gray and white, etc. It belongs to high aluminum minerals. Chemical composition: Al2O3 63.1%, SiO2 36.9%. A single crystal is usually in the shape of a long plate or blade parallel to (100). Naturally occurring kyanite is often close to the ideal composition. It has strong resistance to chemical corrosion, high mechanical strength of thermal shock, and irreversible thermal expansion. It is the main raw material for the production of unshaped material, electric furnace top brick, phosphate unfired brick, mullite brick and low creep brick. It is also a metamorphic mineral, mainly occurring in regional metamorphic crystalline schist, and its metamorphic facies range from greenschist facies to amphibolite facies.

Maximum Concentration of Ni:	0.0006%
Concentration of Co:	72.89%
Maximum Concentration of Cu:	<0.001%
Maximum Concentration of Fe:	0.002%
Maximum Concentration of Pb:	<0.001%
Maximum Concentration of Mn:	0.00033%
Maximum Concentration of Zn:	<0.001%
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Model:
different mesh
Code:
25085000

Product Description

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Kyanite

Introduce

Kyanite is a kind of natural refractory raw material mineral with high refractoriness and large volume expansion at high temperature. There are parallel stripes on the crystal face. The color is light blue or cyan, bright gray and white, etc. It belongs to high aluminum minerals. Chemical composition: Al₂O₃ 63.1%, SiO₂ 36.9%. A single crystal is usually in the shape of a long plate or blade parallel to (100). Naturally occurring kyanite is often close to the ideal composition. It has strong resistance to chemical corrosion, high mechanical strength of thermal shock, and irreversible thermal expansion. It is the main raw material for the production of unshaped material, electric furnace top brick, phosphate unfired brick, mullite brick and low creep brick. It is also a metamorphic mineral, mainly occurring in regional metamorphic crystalline schist, and its metamorphic facies range from greenschist facies to amphibolite facies.

Product Pictures

Test Report

Chemical Composition (%)
Standard			Analysis
Concentration of Co	≥72.0		72.89
Maximum Concentration of Element	Ni	0.2	0.0006
	Cu	0.04	<0.001
	Fe	0.2	0.002
	Pb	0.005	<0.001
	Mn	0.04	0.00033
	Zn	0.01	<0.001
	Cd	0.003	<0.001
	As	0.003	<0.0001

Application

Due to the characteristics of kaerite mineral, it is used to manufacture excellent advanced refractory materials, refractory mortar, cement, casting resistant products, plastic beating mixture, technical ceramics, spark plugs of automobile engines, insulators, ball mill balls, test utensils, shock resistant items, etc. And can be used to produce silicon aluminum alloy by electric heating method, used in aircraft, automobile, train, ship parts. With the development of iron and steel industry, this kind of mine in the form of firebricks, profiles and other forms of hot blast furnace, hot air tower, reheating furnace, soaking furnace and other key parts. Manufacture kiln facilities, can also be used for a variety of auxiliary casting and operation equipment. They can be used in the production of jetting films, the manufacture of crystalline fluorite and the leading edge of supersonic aircraft, the metal accessories of spacecraft, and some can be used as gems. In addition, it can be used as an abrasive, a glaze component and a non-slippery floor material.

(1) The use of kyanite high temperature permanent expansion characteristics (directly added to the amorphous refractory, such as castable, plastic, clay as high temperature expansion agent) as long as adding 5% ~ 15% can improve the load softening temperature compressive strength of the product, improve the change index of the line after burning, eliminate the shrinkage cracks generated by the amorphous refractory at high temperature and cooling process, Spalling and affecting the service life and other weaknesses to extend the lining life.
(2) Aluminate fibers produced from kyanite high alumina minerals can be used to make parts for automobiles, spaceships and radars.
(3) The mullite formed by calcining kyanite is used to make advanced refractory materials, which can prolong the furnace life by 5 ~ 6 years and save energy.
(4) Adding 5% ~ 15% of kyanite to high aluminum cement can make kyanite cement, refractory temperature up to 1650ºC, can be used in military construction.

Kyanite minerals are mainly used in the production of refractory materials, alumina, silicon aluminum alloy and metal fiber.
Therefore, the world pays more and more attention to the development and utilization of kyanite minerals, especially in several developed countries, such as Japan, kyanite is an important raw material of refractory concrete, plastic, high aluminum cement. The United States and some countries use kyanite pre-fired into various grades of mullite clinker, widely used in ceramics and precision casting sectors. A lightweight brick made in the Soviet Union from a kyanite - sillimanite concentrate. The use of kyanite as expansion agent to make up the amorphous refractory in the heating furnace is successful, its surface cracks are less, the use of fire phenomenon is less, the use effect is better. In short, kyanite is a good expander for amorphous refractory materials.

Refractory material
(1) The volume is stable and does not shrink at high temperature.
(2) Lower production cost than other high aluminum refractories.
(3) Good performance. 43% lower loss than clay brick, refractoriness up to 1825°C or more.
(4) Energy saving. The heat capacity is 12% higher than that of clay bricks, which can shorten the smelting time and consume less energy when used in Martin furnace.
(5) Add amorphous refractory as high temperature expander, so that the product does not shrink and peel at high temperature. Mainly used in metallurgy, building materials, machinery, chemical industry, light industry, nuclear industry and other industries.

Silicon aluminum alloy and metal fiber
(1) Lower cost and higher economic benefit than the synthetic method (smelting silicon metal and electrolytic aluminum) or the method of kaolin reduction by electric heating.
(2) It can meet the special technical requirements of manufacturing automobile, spacecraft and radar parts, metallurgy, machinery, aerospace and other industrial sectors.

Company Profile

Amanda (Liaoning) International Trade Co., Ltd. was formerly known as Jin Run Hao Mineral Products Co. The company was established in early 2018, is an integrated company engaged in mineral products processing, foreign trade sales. The main products of the company are ceramic materials, construction materials and refractory materials. The company adopts international advanced processing and photoelectric integration classification technology equipment, in order to ensure accurate quality control and meet the needs of customers. Our company has a technical R&D team to adjust the quality requirements for the special needs of different customers. In the complex international intermodal transportation, we have signed first-class agency contracts with many shipping companies and railroad companies in many ports to provide customers with low-cost and time-efficient transportation solutions. Each product of our "AMANDA" brand has its own advantages and is suitable for different industries. Our products are exported to India, Russia, Turkey, Vietnam, Korea, Indonesia, Bangladesh and other Southeast Asian and European countries. Our products are well received by our customers and we have established a long-term cooperation partnership.

Facing the fierce market competition, Amanda people insist on the tenet of market-oriented, customer-oriented and credit-oriented, and strive to become an international enterprise with outstanding quality, trustworthiness and social responsibility.