By evaluating economic profit, hydrofining obviously prefer to clay refining.
通过经济效益评估，加氢精制工艺明显优于白土精制工艺。
A coking gas oil was treated by clay refining processs in laboratory. Then the oil reacted with a substance a.
以物质A为反应物，白土为脱色物质，研究用反应-吸附的方法提高焦化柴油的质量。
Separation of clay from vegetable oil using ceramic microfiltration membrane in the oil refining process was studied.
针对植物油精制过程，以陶瓷微滤膜对油与粘土的分离进行了研究。
With the raw material of spent bleaching clay of oil refining, the regenerated technology was studied.
以油脂生产中的脱色废白土为原料，制备再生白土。
With the raw material of spent bleaching clay of castor oil refining, castor oil was recovered by 6# solvent extraction with special equipment designed and manufactured by oneself.
以蓖麻油脱色后的废白土为原料，利用自行设计制造的专业提油设备，采用6#溶剂浸出工艺回收废白土中的油脂。
With the raw material of spent bleaching clay of castor oil refining, castor oil was recovered by 6# solvent extraction with special equipment designed and manufactured by oneself.
以蓖麻油脱色后的废白土为原料，利用自行设计制造的专业提油设备，采用6#溶剂浸出工艺回收废白土中的油脂。
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