Fertilizers
Do your refractories offer exceptional chemical, wear and thermal shock resistance as well as flexible shape design for various reactors?
Saint-Gobain refractories offer exceptional chemical, wear and thermal shock resistance, which contribute to longer equipment lifetimes. Exceptional engineering and production capabilities enable flexible design for even the most challenging refractory shapes for many reactor types. ( Secondary Reforming)
Saint-Gobain refractories provide high chemical resistance in the production of hydrochloric acid and salt cake.
Sulfate fertilizers are processed in Mannheim furnaces. The salt feeder is lined with mullite bricks (Mullfrax® 202 HF bricks), while the combustion chamber is lined with Carbofrax® M silicate bonded SiC tiles in the muffle dome to provide good heat transfer onto the salt mix underneath.
Carbofrax® domes act as muffles with excellent thermal conductivity and high-temperature chemical resistance, enabling long operational runs.
Refrax® 20 nitride bonded SiC bricks are best suited for the reaction tank. Cast Refrax® cast nitride bonded SiC offers outstanding chemical resistance to the spout blocks and rabble blades.
| Alumina Refractories | ||||||
|---|---|---|---|---|---|---|
| Al2O3 (%) |
Others (%) |
Density g/cm3 (lb/ft3) |
Porosity (%) |
Shape Design |
Specific comments | |
| AL100 | 99.50 | <0.5 | 3.32 (207) |
16 | Standard and special design bricks | Hot face lining, hydrogen atmosphere |
| AH199H | 99.55 | <0.4 | 3.30 (206) |
16 | Standard and special design bricks / blocks | Excellent erosion resistance, hydrogen atmosphere |
| Alfrax 101 | 98.7 | <1.0 | 3.0 (187) |
22 | Standard and special design bricks | Hot face lining, hydrogen atmosphere |
| Al102 | 96 | 3.0 (ZrO2) |
3.25 (203) |
16 | Standard and special design bricks | Quench zone / high thermal shock resistance |
| Mullfrax 202 | 87 | <10 (SiO2) |
2.80 (175) |
18 | Standard and special design bricks | Hot face lining (carbon black, incinerators, SRU) |
| MS2R | 87 | <10 (SiO2) |
3.02 (189) |
15 | Standard and special design bricks | Hot face lining (carbon black, incinerators, SRU) |
| MS4 | 72 | <25 | 2.50 (156) |
18 | Standard and special design bricks | Dense backup lining |
| MS6 | 62 | <35 | 2.53 (158) |
14 | Standard and special design bricks | Dense backup lining |
| Rl34 | 98.50 |
<1.5 |
1.55 (97) |
50 | Standard and special design bricks | Type 34 insulating brick, hydrogen atmosphere |
| AN599 | 99.80 | <1.0 | 1.60 (100) |
55 | Standard and special design bricks | Type 34 insulating brick, hydrogen atmosphere |
| Mullfrax B101 | 98.4 | <1.5 | 1.48 (92) |
58 | Standard and special design bricks | Type 34 insulating brick |
| SiC Refractories | |||||||||
| SiC (%) |
Si + SiO2 |
Si2ON2+ Si3N4 | Al2O3 | Others (%) |
Density g/cm3 (lb/ft3) |
Porosity (%) |
Shape design |
||
|---|---|---|---|---|---|---|---|---|---|
| Cryston® CN-183 | 80 | 18 | <2.0 | 2.62 | 16 | Standard and special design bricks | |||
| Advancal® | 75 | 23 | <2.0 | 2.62 | 15 | Standard and special design bricks | |||
| Refrax 20 | 80 | 3 | 17 | <0.5 | 2.63 | 16 | Standard and special design bricks | ||
| Cast Refrax | 73 | 5.7 | 21 | <0.5 | 2.58 | 16 | Cast shapes | ||
| Refrax Top | 78 | 2 | 17 | <3.0 | 2.7 | 13 | Standard and special design bricks | ||
| Refrax Plus | 75 | 22 | <3.0 | 2.7 | 13 | Standard and special design bricks | |||
| Refrax Pro | 75 | 22 | <3.5 | 2.7 | 14 | Standard and special design bricks | |||
| Carbofrax M | 85 | 13 | 0.3 | <1.7 | 2.55 | 16 | Standard and special design bricks | ||