Euchem conference on catalysis by zeolites

320 by the end of 1986, been in operation for 4100 hours in total. The operation conditions were as follows: single-state liqpressure: process; uid-phase 2 16-255. IO4 Pa; reactor temperature: inlet, 25-40°C and outlet, 55-60°C; LHSV: 50-170 h-‘; propyne content in the feed: 1.2-2.3% and mole ratio of H/alkyne: 1.2-2.0. The contents of propyne and propyldiene in C3 fraction were reduced to less than 5 ppm and 10 ppm respectively after hydrogenation, while the loss of propene was nearly zero. In comparison with the two-stage liquidphase hydrogenation process developed by IFP of France, this new process has the following advantages: (i) lower capital investment and easy operation; (ii) larger load capacity of the catalyst; (iii) higher activity, better selectivity, less production of lower polymers and a longer period between regenerations; (iv) feeding temperature up to 4O”C, this allowing water to be used as cooling agent instead of propene and making the process more economical in energy. WANG DING-ZHU Euchem Zeolites

Conference

on Catalysis

by

This conference will be held in Villette d’Anthon (25 km east of Lyon), France, from 25th to 28th October 1988. According to the organisers: “The synthesis and characterisation of new zeolitic materials is a rapidly expanding research field which is of high potential for scientific discovery and technological innovation.” The aim of the meeting is thus to provide a forum to discuss the state of the art in relation to recent developments of catalysis by zeolites. Themes of the meeting will be: synthesis of zeolitic materials of high potentiality for catalytic applications, including materials containing elements other than aluminium and silicon; new developments in zeolite char-

applied catalysis -Volume

40 NO. 1-z -

acterisation; acid catalysis by zeolites; deactivation and coking; zeolites for “chemicals”; and theoretical aspects of zeolite chemistry. The scientific programme will include plenary lectures from experts in the various fields, followed by panel discussions including short oral presentations; poster sessions will also be held throughout the conference. The Chairman of the meeting will be Professor Claude Naccache and the Co-Chairman will be Professor Eric Derouane and the organisation will be carried out by the lnstitut de Recherches sur la Catatyse, Villeurbanne. Further details of the conference can be obtained from Prof. Naccache at the address given in the Calendar of Forthcoming Events. European Materials

Symposium

on Advanced

Information has just been received of a European Symposium on Advanced Materials: Their Role in New Technologies. This will be held in Madrid (Spain) from 27th to 29th June 1988, just two weeks from the appearance date of this issue of Applied Catalysis. Dealing with topics such as Semiconductors, Superconductivity, Ceramics and Other Sensor Materials, and Surfaces and Interfaces, the meeting is being organised by the newly formed European Institute of Technology (EIT). Based in France, this institute is “A major new industrial consortium for scientific and engineering research and education organised by leading international corporations. It was created to help European industry take full advantage of its scientific and technological resources by forging a new, more effective industry-university partnership.” The activities will be focused on direct precompetitive research in information technology, materials technology and biotechnology. It is hoped that the Institute, which is decentralised, will link outstanding researchers and scientific centres

June 1988