Étude pour l'amélioration des colonnes pulsées d'extraction liquide-liquide

Étude pour l'amélioration des colonnes pulsées d'extraction liquide-liquide

Author: Bernard Tortel

Publisher:

Published: 1980

Total Pages: 103

ISBN-13:

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Étude comparative des plateaux perfores et des plateaux disques-couronnes (succession de disques pleins et de plateaux perces d'un unique trou axial) : hydrodynamique (engorgement et retenue) et efficacité (exemple de l'extraction d'acide nitrique en phase aqueuse, en particulier dans une colonne de 6 m de hauteur)


Secondary Settling Tanks

Secondary Settling Tanks

Author: G. A. Ekama

Publisher: International Water Assn

Published: 1997-01-01

Total Pages: 216

ISBN-13: 9781900222037

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The secondary settling tank (SST) plays a major ro


Uranium Extraction Technology

Uranium Extraction Technology

Author: International Atomic Energy Agency

Publisher:

Published: 1993

Total Pages: 384

ISBN-13:

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The purpose of this publication is to update and expand the first edition, which was published in 1983, and to report on later advances in uranium ore processing. It includes background information about the principles of the unit operations used in uranium ore processing and summarizes the current state of the art. Extensive references provide sources for specific technological details.


Adhesion Between Polymers and Concrete / Adhésion Entre Polymères Et Béton

Adhesion Between Polymers and Concrete / Adhésion Entre Polymères Et Béton

Author: H. R. Sasse

Publisher: Springer

Published: 1986

Total Pages: 792

ISBN-13:

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Preface Adhesion is a phenomenon architects and civil engineers are not very familiar with. In other disciplines knowledge about surface properties and the background of bonding energies is also far from satisfactory; nevertheless there are many important· applications in concrete engineering, where adhesion is necessary for success and durability. These include: - coating and painting - repair of concrete surfaces - bonding of fresh to old concrete - crack injection - glueing of precast elements - glueing of steel to concrete, etc. In 1981 RILEM established the technical committee 52-RAC 'Resin Adherence to Concrete'. The main aims of the committee's work were - to collect research results and practical experiences - to initiate and coordinate research programs - to develop, on a scientific base, test methods for field and for laboratory purposes. One of the results of the committee's work is a state-of-the-art report, which will be presented orally as a General Report at the International Symposium ISAP '86, and will be printed either in the RILEM journal Materials and Structures or separately. Several test recommendations have been elaborated and will be prepared as drafts for the participants ofISAP '86. These are: - direct tensile test - pull-off test - direct shear test - slant shear test - four-point bending test - dynamic loading test - thermal compatibility test (two versions) - injectibility test.