Terminology for membranes and membrane processes ( IUPAC Recommendations 1996) 膜および膜プロセス用語1996 IUPAC推奨

Carrier Mediated ( Facilitated) Separations キャリアを利用した(促進)分離(46-60)


Carrier-Mediated(Facilitated) Separations

46. anchored ( bound) carrier: distinct species bonded chemically to fixed sites within a membrane for the purpose of increasing the selective sorption and flux of a specific component in a feed stream relative to all other components

固定化キャリア:供給混合物中の特定成分の選択的な吸着・透過を促進する目的で、膜中の固定基に化学的に結合させた成分。

47. carrier complexation coefficient, Kc, [kmol m-3]: parameter defined as the ratio of the rate constants for the second order complexation and first order decomplexation reaction between a carrier and a penetrant: vis., A + M =AM [Note 1: Kc =kc/kd, where A & M, resp., are a penetrant and a carrier site within a membrane ( see note 2)] [Note 2: both anchored carrier sites (46) and mobile carrier sites (59) are possible

キャリア(錯化剤)錯形成係数:キャリアと透過物間の2次の会合反応と1次の会合反応の各速度定数の比で定義されるパラメータ。(注2:固定化キャリアと可動キャリアがある)

48. carrier complexation: phenomenon in which carrier molecules from a coordinated structure with penetrant molecules

キャリア錯形成:キャリア分子が透過物分子と配位構造を作ること。

49. carrier deactivation: chemical transformations involving a carrier entity which render it less capable of undergoing the desired interaction with a penetrant

キャリアの不活性化:キャリアの化学的変性。透過物との相互作用の大きさが減少する。

50. carrier leaching: loss of carrier due to its partitioning by mass transport into one or both external phases

キャリアの浸出:片側あるいは両側の外部相への物質移動による分配にともなうキャリアの減少。

51. carrier-mediated (facilitated) transport: process in which chemically distinct carrier species (46, 59) from complexes with a specific component in the feedstream, thereby increasing the flux (14) of this component relative to other component

キャリア促進輸送:化学的に独立したキャリア成分が供給中の特定成分と錯形成して、その成分の透過流束を増加させるプロセス。

52. complexation rate constant, kc[kmol-1 m3 s-1]: carrier complexation rate divided by the product of the local concentrations of the carrier and the complexable component, viz., kc =(complexation rate)/[(c)carrier(c)complexable component] where concentrations are given in [kmol m-3] and complexation rate is given in [kmol m-3 s-1]

錯形成速度定数:錯体形成速度をキャリアの濃度と錯形成成分の濃度の積で割ったもの。

53. coupled transport: process in which the flux of one component between the upstream and downstream is linked to the flux of a second component

連結輸送:一つの成分の透過流束が第2成分の流束に影響を受けるプロセス。

54. Damkohler number: dimensionless number equal to the characteristic time (l2/DAM) for diffusion of complexed component across a membrane of thickness, l , divided by the characteristic time(kd-1) for the decomplexation reaction between a carrier(M) and a complexed penetrant, A, viz., l2/(DAMkd) when DAN is the effective diffusion coefficient of the complexed carrier entity in the membrane

ダムケラー数:厚みlの膜を透過する錯体の拡散特性速度をキャリア-透過成分間の解離反応特性時間で割った値。

55. decomplexation rate constant, kd[s-1]: ratio of the decomplexation rate to the product of the local concentration of the complexed carrier, viz., kd =(decomplexation rate)/(c)cmplexed carrier {Note: typical units for decomplexation rate are [kmol m-3 s-1], and for complexed carrier are [kmol m-3]

解離速度定数:解離反応の速度と錯体の局所濃度の比。

56. enhancement factor, ε: ratio of the flux of a component, i (14) across a carrier- containing membrane divided by the transmembrane flux of the same component across an otherwise identical membrane without carrier (Note: ε=[(Ji)with carrier/( Ji)without carrier]}

促進係数:キャリア含浸膜における流束をキャリア無しの場合の流束で割った値。

57. facilitation factor: parameter equal to the enhancement factor(56) minus one (Note: F=ε-1)

促進係数:1から上記パラメータを引いた値。

58. liquid membrane: liquid phase existing either in supported or unsupported form that serves as a membrane barrier between two phases

液膜:2相間の膜として機能する支持または非支持液相。

59. mobile carrier: distinct species moving freely within a membrane for the purpose of increasing the selective sorption and flux of a specific component in a feed stream relative to all other components

可動キャリア:供給物中の特定成分の吸収と透過を選択的に増加させる、膜中を自由に動く成分。

60. uphill transport: process in which diffusion of a component occurs from a less concentrated feed stream to a more concentrated permeate stream

汲み上げ輸送:濃度の低い供給流れから濃度の高い透過流れへの拡散がおこるプロセス。


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