| 摘要 |
The present invention relates to a low solubility salt removal apparatus provided in a process of recovering a target recovery material, specifically, mono ethylene glycol in a raw material. According to the present invention, the apparatus does not need to have a solid heating surface since gas with high temperatures is injected into a preprocessing unit, thereby preventing scale of the low solubility salt formed in a heat transmission surface of a heater and a downstream pipe, and also, recovering the target object material in the raw material which increases frequent operation stops due to a scale formation, and maintenance costs thereof. |
