Hitachi, Ltd.

Hitachi Koki Co., Ltd.

Hitachi Plant Engineering Construction Co., Ltd.

Babcock-hitachi K.k.

Ikuo Shimokobe

Teruaki Mitsuya

Nobuo Yoshida

Takao Umeda

Nobuyoshi Hoshi

Yasuro Hori

Takao Kumasaka

Seiji Takeuchi

Toshio Sawa

Kazunori Fujita

Shigeoki Nishimura

Tsukasa Nishimura

Seiichi Kikkawa

Kouji Otani

Kosaku Otsubo

An aerial recording sheet carrier is provided downstream of a fixing station. The aerial recording sheet carrier has one pair of pressure chambers with wall surfaces facing each other and in parallel. Air jets are arranged on opposite wall surfaces of the pressure chambers. A recording sheet and a toner image from the fixing station are carried by an air stream and cooled down. The toner image on the recording sheet, which is in fusion, is prevented from coming into contact with any parts, such as a recording sheet carrying passage. Thus a stain on parts due to contact with the toner image can be prevented.

Duplex reproducing apparatus with device for cooling and conveying fused

Waste water issued from a wet type desulfurization apparatus and containing thionic acid ions is introduced into ion-exchange towers filled with weak-basic anion-exchange which has to effect anion exchange therein. The weak-basic anion-exchange resin which has adsorbed the thionic acid ions is desorbed by contacting an alkaline solution. The thionic acid ions included in the desorbing solution are decomposed by heating them in the presence of acid. A decomposed solution is issued out of the system after its neutralization.

Method of treatment of waste water containing sulfur compounds

A sample containing a plurality of components to be analyzed is introduced to a separation column at its top through a sample feeding device. The sample thus introduced is separated to the individual components in the separation column. Ion exchange resins capable of undergoing deformation depending upon an applied pressure are filled in the separation column. An eluting solution containing sodium ions is fed to the separation column at its top under a pressure of 40 kg/cm.sup.2 or higher through a feed pump. Components leaving the separation column at its bottom are detected by a detector. After the components have left the separation column, a regenerating solution containing lithium ions is introduced to the separation column at its bottom, and is made to leave the separation column at its top. The ion exchange resins are regenerated by passing the regenerating solution through the separation column, and a separation for another sample is made ready thereby. Another sample is then introduced into the separation column at its bottom and the separated components of the sample are made to leave the separation column at its top.

Method and apparatus for liquid chromatography under elevated pressure

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Hitachi, Japan

Ikuo Shimokobe