calcined bauxite used for refractory
USD $250 - $300 /Ton
Min.Order:1 Ton
Shijiazhuang Gongyi Import And Export Trading Co., Ltd.
calcined bauxite used for refractory
Description of calcined bauxite
Calcined Bauxite is produced from non metallurgical Bauxite grades with a high diasporic content through sintering in rotary kilns at 1650-1700C. Al2O3 contents range from 82 %, 86 % to 88 %. Densities range from 2,84 g/cm, 3,22 g/cm to 3,33 g/cm. There are three kinds of kilns for calcination process: rotary kiln, shaft kiln and round kiln. Comparing with other two kinds, rotary kiln bauxite is calcined more evenly, benefits from the continuous rotary movement of the kiln body.Bauxite 82DS, 86DS & 88DSare mined and calcinated in the Province of Shanxi in China.
Most important characteristics are high thermal stability, high mechanical strength and good resistance to molten slags. Calcined Bauxite is typically applied in working lining refractories for blast furnaces, runners and torpedo ladles, moreover in nose rings, kiln hoods and tertiary air duct refractories for the cement industry. Non-refractory applications are slag forming agents in secondary metallurgy, concretes for vault production and high friction surface aggregate for road construction and industrial floors.
Besides the above mentioned products we can offer a broad range of calcined Bauxites on our customers` request, e.g. calcined in rotary, round or shaft kiln, with alumina contents of 80-90%, silica 5-14%, Fe2O3 typically below 2% and titania contents that are usually not higher than 4%. Bauxite 82DS, 86DS & 88DS are supplied in standard fractions of 0-1, 1-3, 3-6, 6-10mm, 0-90m and 0-150m, packed in 1,2 ton big bags or 25kg paper bags on pallets or bulk in silo-trucks. Other fractions are available on request.
Applications of Calcined Bauxite
Refractory Grade Calcined Bauxite : To make refractory grade, Bauxite is thermally treated at 1600 oC to produce Calcined Bauxite where the Alumina content is mostly above 82%.
Brown Fused Alumina, Proppants and Road Surfacing : To make the above grades, Bauxite is thermally treated at 1000 oC – 1200 oC to produce Calcined Bauxite where the Alumina content is anywhere between 80-88% depending on the requirement.
Specifications
Item | AL2O3 | FE2O3 | TIO2 | K2O+Na2O | CaO+MgO | P | S |
CBF 8 3 | ≥ 8 3 | ≤ 2. 0 | ≤ 4.0 | ≤ 1.0 | ≤ 0. 6 | ≤ 0. 04 | ≤ 0. 02 |
CBF 8 5 | ≥ 8 5 | ≤ 2. 0 | ≤ 4.0 | ≤ 1.0 | ≤ 0. 6 | ≤ 0. 04 | ≤ 0. 02 |
CBF 8 6 | ≥ 8 6 | ≤ 2. 0 | ≤ 4.0 | ≤ 1.0 | ≤ 0. 6 | ≤ 0. 04 | ≤ 0. 02 |
CBF 8 7 | ≥ 8 7 | ≤ 2. 0 | ≤ 4.0 | ≤ 1.0 | ≤ 0. 6 | ≤ 0. 04 | ≤ 0. 02 |
CBF 8 8 | ≥ 8 8 | ≤ 2. 0 | ≤ 4.0 | ≤ 1.0 | ≤ 0. 6 | ≤ 0. 04 | ≤ 0. 02 |
Free Sample
Sample is free(less than 2kg),but the freight should be payed by buyer.
EMS,DHL,FEDEX,UPS,TNT are all avialable.
FAQ
Q: Why choose us?
A: We have a stable supply, product content enough, good product performance, fast and accurate delivery time, packaging firm.
Q: Why are your prices low?
A: We are the manufacturer of the production-oriented enterprises in retail mode is generally not a hundred percent of our ex-factory price is generally played at least one ton batch, if a customer orders online under direct orders do not need to contact us.
Q: The price on the website you can refer to it as the price?
A: Our raw material prices rise or fall, or publish a lot of information on our website so hard to update the site every day price as the reference price fluctuations ± 5% with the intention of customers can feel free to contact us.
Q: We do not ship section of your hair less how to do?
A: Our company address in the Internet Industry Bureau certified public can verify the Henan Industry Bureau website to be available to the factory delivery vehicles to take our car (we recommend first contract signed in interviews intent crunching)
Q: Do you affordable quality can guarantee it?
A: We have quality support Alibaba support secured transactions seven days no reason to return every deal we will do a stamp is a legally binding contract that both sides you can rest assured.
Q: We can purchase a second sequence three times cheaper?
A: Our prices are already low profit pressure is very low second third sequence of four if the amount of purchases and the same amount for the first time, we generally take the goods in accordance with the original price.
Ship and Our Factory
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Contact Person:Crastino Yang
Skype:sjzgongyi
Tell:86 311 68003636
Phone:86 18033867807
Email:crastino{at}