- Henan Xinhongji Refractory Material Co. Ltd.
- China Manufacturer with main products:refractory bricks ,refractory castables ,firebricks ,refractory materials ,refractory honeycomb ceramic regenerators ,refractory ceramic balls ,Calcined Kaolin Clay ,Chromium Corundum Homogenizing particle ,refractory material powder ,Mullite Homogenizing particle ,Refractory powder ,Fire Clay
Home > Products > Refractory Castable > High Strength High Alumina Thermal Insulation Acid Resistant Refractory Castables
High Strength High Alumina Thermal Insulation Acid Resistant Refractory Castables
- 10000 Ton / Tons per Month
- Tianjin/Qingdao
- T/T L/C Cash
- 10 days
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Product Details
Brand Name: | Xinhongji Refractory | Place of Origin: | China | Model Number: | NHJ-202C012 |
Shape: | Powder | Material: | Castable | CaO Content (%): | 1 |
SiO2 Content (%): | 5~55 | Al2O3 Content (%): | 40~85 | Refractoriness (Degree): | Common (1580°< Refractoriness< 1770°) |
Product Description
Acid Resistant Castable
Introduction:
Acid Resistant Castable (also called refractory acid-resistant castable or refractory acid-proof castable), also known as refractory castable, is a refractory material that can withstand acid erosion and is extensively used in non-ferrous metallurgy, chemical industry, chimneys, and other applications.
Acid resistant castable adopt special fine coke, primary quartz and some corundum as aggregate, acid-resistant cement and pure calcium aluminate cement as binder, and adding ultrafine powder and composite additives. It has the advantages of high temperature resistance, acid corrosion resistance and strong wear resistance.
Acid resistant castable has a larger quantity of binding agent and moisture, as well as better fluidity, as compared to other unshaped refractory. Unshaped refractory has a wide range of applications and can be applied by pouring or ramming, depending on the materials utilized and the binding agent employed.
With a density of 1.381.42g/cm3, the acid resistant castable is made up of 60 percent 70 percent acid-resistant aggregate, 30 percent 40 percent powder, and 13 percent -16 percent sodium silicate solution.
Whenever the agent is introduced, the quantity of refractory material that is 10% to 12% of the mass of the sodium silicate solution and resists acidic medium corrosion at 800 to 1200 °C is referred to as an acid-resistant castable.
The general composition of Acid resistant castable is: acid-proof refractory aggregate 60%-70%, powder 30%-40%, plus the density of 1.38-1.42g/cm3 sodium silicate solution 13%-16%, with sodium fluorosilicate as the hardening agent, the addition amount is 10%-12% of the quality of sodium silicate solution. Alkali, hot phosphoric acid, and high fat are not resistant to acid castables.
Properties
1.High temperature resistance.
2.High tensile strength.
3.Acid erosion resistance.
4.Great uniformity.
5.Resistant to high humidity.
6.High content of water and anchoring agent.
7.High compression ratio.
Physical & Chemical Index
Item / Model | XHJARC40 | XHJARC45 | XHJARC55 | |
Chemical Composition | Al2O3 (%)≥ | 40 | 40 | 40 |
SiO2 (%)≥ | 45 | 48 | 55 | |
Bulk Density | (g/cm3)≥ | 2.2 | 2.2 | 2.3 |
Cold Crushing Strength | (110℃×24h) Mpa≥ | 26 | 32 | 40 |
(1350℃×24h) Mpa≥ | 36 | 42 | 50 | |
Acid resistance | (%)≥ | 98.5 | 98.5 | 98.5 |
Thermal Conductivity | (350±25℃,W/m·k)≤ | 0.5 | 0.5 | 0.6 |
Working Temp. | (℃) | 800 | 1000 | 1200 |
Characteristics
1.Acid Resistant Castable Have Energy Saving.
Eliminating the high-energy calcination process, only molding, drying and baking are required, and the energy consumption is 5 to 6% of the fired refractory bricks.
2.Acid Resistant Castable Have High Productivity.
The refractory castable is simple in production process and its production efficiency is 4~9 times that of refractory bricks.
3.The Construction Efficiency is High.
The construction efficiency of unshaped refractory materials is 6~15 times that of bricklaying.
Can be freely shaped.
Acid resistant castable can be made into a whole-kind lining and can be used to quickly repair the kiln to improve its life and operation rate.
4.Suitable for all kinds of Kiln Projects.
The use of special high-quality materials can be used to arrange masonry materials with good resistance to heat and earthquake resistance to harmful gases and slag erosion, flaking and heat insulation.
Applications:
Acid resistant castables are mainly used for anti-corrosion flue and chimney linings, acid storage tanks, pickling tank linings, nitric acid shrinkage tower linings, acid recovery furnace linings, and other container linings corroded by acidic high-temperature gases, etc.
Packing:
l Plastic bag(25kg), Kraft bag (25 kg), Plastic Ton bag(1 ton);
l 1 ton on pallet with plastic film & bundle belts.
l Per your requests
Contact Us
- Henan Xinhongji Refractory Material Co. Ltd.
- Contact nameJacky Yan
- Phone86-371-55611337
- AddressZhongyuan District Zhengzhou,Henan
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