Index of Acid Proof Bricks:
1.SiO2 : > 65% 2.Acid-proof Rate: Up to 98% 3.Thermal Conductivity: Down to 0.45 4.Apparent porosity ≤ 21%
Descriptions of Acid Proof Bricks
Acid proof brick or acid resistant brick is a specially made form of masonry brick that is chemically resistant and thermally durable. Acid-resistant brick is a corrosion-resistant material made of quartz, feldspar and clay as the main raw materials and oxidized and decomposed by high temperature at 1350 °C. The main component of acid-resistant bricks is silica which must account for more than 60%. However, not all acid-resistant bricks can meet this standard of silica content. Only high-quality quartz, clay and feldspar can release anti-corrosion and acid-resistant silica under high temperature.
Features of Acid Proof Bricks
1.Low thermal conductivity
2.Strong acid-resistance
3.Low water absorption
4.Not be oxidized easily
5.Not be contaminated by media easily
6.Strong alkali-resistance (at normal temperature)
Application of Acid Proof Bricks
Acid-resistant bricks are made of high-quality acid-resistant materials, which can effectively resist the corrosion of high-sulfur fumes. It is widely used in the lining of towers, pools, tanks of thermal equipment in electric power, petrochemical, metallurgy industry, etc., and can exert its corrosion-resistance in working places such as underground sewage passages and open-air ground.
Rongsheng Refractory
A part of physical and chemical indexes of acid-resistant bricks produced by Rongsheng refractory company have exceeded the national standards and are ideal industrial-specific products. The products have been exported to many countries and have won good reputation in the international market.
Indexes of Acid Proof Bricks
|
Items |
Special Acid-proof Bricks |
Light Acid-proof Bricks |
|
SiO2 > |
65% |
65% |
|
Cold Crushing Strength |
15MPa |
10MPa |
|
Thermal Conductivity |
0.65W/m·k | 0.45W/m·k |
| Water Absorption | 15% |
5% |
|
Acid-resistance Rate |
98% |
97% |
