PX
Para-xylene is a colorless, transparent liquid with aromatic odor, specific gravity 0.861g/cm3, and boiling point 138.3°C. It is one of the basic raw materials for the petrochemical industry. The company has been operating since 1998 and currently has an annual production capacity of 1.97 million tons.
Uses
- Para-xylene is mainly used to produce terephthalic acid (PTA).
- Para-xylene can be used to produce important intermediates such as polyethylene terephthalate (PET) and industrial plastics.
Quality specification
| Analysis Item | Unit | Quality standard | Testing method |
| Appearance | Clear | Visual | |
| Purity | Wt% | ≧99.65 | UOP720 |
| Solidification Point | ℃ | ≧13.07 | ASTM D1493 |
| Water | Wt.ppm | < 100 | UOP481 |
| m-Xylene | Wt.ppm | 600~2000 | UOP720 |
| o-Xylene | Wt.ppm | 100~800 | UOP720 |
| Ethylbenzene | Wt.ppm | <1700 | UOP720 |
| Benzene | Wt.ppm | <100 | UOP720 |
| Toluene | Wt.ppm | <200 | UOP720 |
| Total Sulfur | Wt.ppm | <1 | ASTM D4045 |
| Pt-Co Color | <20 | ASTM D1209 | |
| Bromine Index | mg Br/100g | <20 | ASTM D1492 |
| Total Chloride | Wt.ppm | <1 | UOP395 |
| Distillation Range | ℃ | ≦2 content 138.3℃ | ASTM D850 |
| proportion 15.56/15.56℃ (Specific Gravity) | 0.862~0.866 | ASTM D4052 |
