1) purifying by extraction
萃取除杂
1.
Nickel sulfate can be obtained from the alloy scrap by a process of "leaching by mixed acid-deposition of Sn by Na 2CO 3-iron removal by Na 2CO 3-purifying by extraction-crystallization by concentration", and sodium stannate can be obtained from residue through deposition of Sn by a process of "dissolving by alkali-quenching in water-crystallization by concentration".
Ni-Sn-Fe合金废料经混酸浸出、Na2 CO3沉锡、Na2 CO3除铁、萃取除杂、浓缩结晶可得硫酸镍 ;所沉锡渣碱溶、水淬、浓缩结晶可得锡酸钠。
2) removing calcium with solvent extraction
萃取除钙
3) copper removal by extraction
萃取除铜
5) multistage separation dewaxing
多级萃取除蜡
6) extraction
[英][ɪk'strækʃn] [美][ɪk'strækʃən]
萃取
1.
Effect of extraction conditions on structure and properties of UHMWPE gel fibers;
萃取条件对UHMWPE冻胶纤维结构与性能的影响
2.
Study on ultrasonic extraction technique of oligomers from PET;
超声波法萃取PET中齐聚物工艺的研究
补充资料：内吸除(见单晶片的吸除技术)
内吸除(见单晶片的吸除技术)
internal gettering
内吸除internal gettering见单晶片的吸除技术。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条