Petroleum acids was removed from straight-run diesel distillate through chemical reaction and extraction under moderate conditions using an alkaline complex solution.
介绍了用一种碱性复合溶剂体系，在比较缓和的条件下，通过化学反应和抽提从直馏柴油中脱除石油酸的工艺过程。
The separation technique of solvent extraction based on reversible chemical complexation features high capacity and high selectivity for separating polar organic solutes from dilute solution.
络合萃取技术对于极性有机物稀溶液的分离具有高效性和高选择性。
The distribution and transfer character of iron in Liaohe vacuum residue were studied by absorption-separation, acidic solution extraction and mild chemical oxidative degradation of asphaltene.
考察了辽河减压渣油在吸附分离、酸性溶液萃取和沥青质轻度降解过程中金属铁的分布和转移情况。
The distribution and transfer character of iron in Liaohe vacuum residue were studied by absorption-separation, acidic solution extraction and mild chemical oxidative degradation of asphaltene.
考察了辽河减压渣油在吸附分离、酸性溶液萃取和沥青质轻度降解过程中金属铁的分布和转移情况。
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