| 释义 |
raffinate|ˈræfɪneɪt|
[ad. G. or F. raffinat, f. G. raffinieren (F. raffiner) to refine + -at -ate1 (as in distillate, filtrate, etc.).]
The refined fraction which results after removal of impurities by solvent extraction, spec. in oil refining. Also attrib.
The term was first used in oil refining, in connection with the solvent extraction process invented by the Romanian chemical engineer L. Edeleanu and introduced on a commercial scale at Rouen c 1911.
1928L. Edeleanu U.S. Pat. 1,661,565 2/1 The finished hot raffinate is taken from the last evaporator 21 by the pump 23 and passed..to the storage tank. 1932Jrnl. Inst. Petroleum Technologists XVIII. 919 Dr. Edeleanu could lay claim to a further distinction, in having added two words to the English language—the words ‘edeleanize’ and ‘raffinate’—words which, if not already in the dictionary, soon would be. 1941W. L. Nelson Petroleum Refinery Engin. (ed. 2) xxvii. 617 Elaborate equipment is required to distill the solvent (or oil) from the extract and raffinate solutions. 1950Jrnl. Amer. Chem. Soc. LXXII. 12/2 Now the flask in the ‘R’ position contained penicillin which was emptied into a larger container as raffinate pool. 1958Engineering 14 Feb. 205/2 The presence of this dissolved salt in the fission-product raffinate stream limits the degree of concentration which may be achieved by evaporation while still keeping all the material in solution. 1970W. G. Roberts Quest for Oil ix. 95 The raffinate is given a final sweetening and is ready for use as premium kerosene. |