87 % Refractory Grade Bauxite , Metallurgical Grade Bauxite Precision Casting

Refractory Grade Bauxite , Rotary Kiln Bauxite , Calcined Bauxite 87 %

 

 

 

Details information

 

 

Bauxite is a mixture of minerals that contain various concentrations of hydrated aluminum oxides, as well as impurities. The primary ore minerals are gibbsite (alumina tri-hydrate), boehmite and diaspore (alumina monohydrates).

Gibbsite-rich bauxite is preferred as it can be refined at lower digestion temperatures than the other types of alumina bearing minerals.

Bauxite is usually reddish-brown, but can also be white, tan, and yellow, depending on the type and concentration of iron minerals present. It also has a wide range of textures, but is typically dull to earthy in luster and can look like clay or soil.

 

 

 

Application:

 

1. Aluminium metallurgy
2. Precision casting / Investment casting:
bauxite grog fines can be made into mold for precision casting.
3. Refractory: high alumina bauxite's refractoriness can reach 1780°C.
It is charactered by good chemical stability and mechanical performance. (Al2O3 ≥48% with low Fe2O3)
4. Aluminium silicate refractory fiber: The high alumina bauxite grog can melt under 2000°C-2200°C in the electric arc furnace.After a series of processing, it can become aluminium silicate refractory fiber,
which can be made into fiber blanket, plate,cloth.
5. Mixing magnesia and bauxite grog with binders to pour the molten steel ladle for better overall lining
performance.
6. Producing bauxite cement
7. Abrasives
8. Ceramics industry
9. Chemistry industry for all kinds of aluminium compound.

 

 

 

Physical And Chemical Properties

 

 

 

Shaft Kiln Bauxite

 

 

Items	Al2O3	Fe2O3	B.D.
86	86% min	2% max	2.9-3.15
85	85% min	2% max	2.8-3.10
84	84% min	2% max	2.8-3.10
83	83% min	2% max	2.8-3.10
82	82% min	2% max	2.8-3.0
80	80% min	2% max	2.7-3.0
78	78% min	2% max	2.7-2.9
75	75% min	2% max	2.6-2.8
70	70% min	2% max	2.6-2.8
50	50% min	2% max	2.5-2.55

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Rotary Kiln Bauxite

 

 

Itams	Al2O3	Fe2O3	B.D.	K2o+Na2o	CaO+MgO	TiO2
88	88% min	1.5% max	3.25 min	0.25% max	0.4% max	3.8% max
87	87% min	1.6% max	3.20 min	0.25% max	0.4% max	3.8% max
86	86% min	1.8% max	3.15 min	0.3% max	0.5% max	4 % max
85	85% min	2.0% max	3.10 min	0.3% max	0.5% max	4% max
83	83% min	2.0% max	3.05 min	0.3% max	0.5% max	4% max
80	80% min	2.0% max	3.0 min	0.3% max	0.5% max	4% max
78	75-78%	2.0% max	2.8-2.9	0.3% max	0.5% max	4% max

 

 

Round Kiln Bauxite

 

 

Itams	Al2O3	Fe2O3	B.D.	K2o+Na2o	CaO+MgO	TiO2
90	90% min	1.8% max	3.4 min	0.3% max	0.5% max	3.8% max
89	89% min	2.0% max	3.38 min	0.3% max	0.5% max	4% max
88	88% min	2.0% max	3.35 min	0.3% max	0.5% max	4% max
87	87% min	2.0% max	3.30 min	0.3% max	0.5% max	4% max
86	86% min	2.0% max	3.25 min	0.3% max	0.5% max	4% max
85	85% min	2.0% max	3.20 min	0.3% max	0.5% max	4% max
83	83% min	2.0% max	3.15 min	0.3% max	0.5% max	4% max

 

 

 

 

Package:

 

 

1 ) . In 1MT/1.25MT Big Bag

 

2 ) . In 1.25MT Big Bag

 

 

 

According To Customers' Reauirement.

 

 

 

FAQ:

 

 

Q : What is your lead time?

 

A : It usually needs about 7-14 days after receiving the workable payment.

 

 

 

Q : Do you provide free samples?

 

A : Of course! Customized samples are needed. The mass production will be started after we get your confirmation on this sample. However, shipping costs are paid by you.

 

 

 

Q : What is your payments term?

 

A : We can accept 30% deposit, 70% balance to be against the BL copy or by LC, or other payment terms.