The process of two-stage hydrogen refining for the preparation of grinding oil was studied.
以常二线馏分油为原料油，研究了加氢精制生产研磨油的工艺。
The invention relates to an application method of hydrogen sulfate imidazole ion fluid in copper electrolysis refining.
本发明是硫酸氢咪唑离子液体在铜电解精炼中的应用。
Refinery gas is mostly methane and hydrogen produced as a by-product in the many refining processes.
气是许多炼油过程中产生的副产品，主要是甲烷和氢气。
应用推荐