Item 1:

Adoption of the Minutes of the WPM Meeting held in Delft (The Netherlands) on July 3rd, 2000.
No amendments were requested the Minutes were approved and adopted.

Item 2:
Activities of the WP on Mixing of the French Society of Chemical Engineers.
Dr. J. Bertrand presented a report on the Thematic Group on Mixing of the French Society of Chemical Engineering - see Enclosure 1. Delegates discussed the report and appreciated a close link between industrial and academic people dealing with mixing in France expressed by active participation of representatives from Universities and industry at the Meeting of the French Thematic Group.

Item 3:
Activities of the Awards Committee within the EFCE - WPM.
At the WP Meeting held during the 10th European Mixing Conference in Delft on 4 July 2000 it was decided to inaugurate a price for Young Research Workers. Awards Committee within the EFCE-WPM received three nominations having very high scientific level and recommended the EFCE - WPM to grant this award to Dr. Giorgio MICALE who was nominated by Prof. Alberto Brucato - University of Palermo, Italy. This proposal was approved by WPM delegates. Next awards of the EFCE - WPM will be granted on the occasion of the 11th European Conference on Mixing in 2003.

Item 4:
Activities of the Conference Committee within the EFCE - WPM.
Dr. I. Fořt a Chairman of the Conference Committee within the EFCE - WPM prepared a "List of Conferences on Mixing and Sessions on Mixing of the Conferences of Chemical Engineering in 2001" (see Enclosure 2). Delegates discussed this List and expressed their positive view on various countries in Europe organizing local Conferences on mixing or special Sessions on mixing on the occasions of the regular Conferences on Chemical Engineering. They considered rather important that the main International Conferences frequently included papers on mixing, as well.

Item 5:
Activities of the Industrial Committee within the EFCE - WPM.
Dr. J. Bertrand a Chairman of the Industrial Committee within the EFCE-WPM informed the delegates about the main recent activity of the Committee: a preparation of the 4th International Symposium on Mixing in Industrial Processes (ISMIP 4) held in Toulouse (France) on May 14 - 16. International Scientific Committee of the Symposium has been set up as well as the Organizing Committee from France. Symposium amounted 34 oral and 30 poster papers with one third of them coming from industrial sphere; more than one hundred participants from 22 countries from over the world attended the Symposium. Delegated recommended to organize such Conferences regularly within the period of three years and to include a section on industrial applications of mixing.

Item 6:
EFCE-WPM Nomenclature upgrading.
Prof. P. Mavros prepared a upgrading comparative list of terms and symbols in Mixing Technology based on the "Mixing: Terms, Symbols, Units - EFCE-WP on Mixing, 1999" and the "MIXNET EU Project Nomenclature - 1999". Delegates discussed the list and after short discussion they approved a few changes of the EFCE - WPM symbols (see Enclosure 3). New symbols up to now not included into the EFCE - WPM Nomenclature (e.g. symbols of the CFD at mixing) will be at the latest until July 2001 put on the EFCE - WPM web page (www.efce.org) and will be available for free discussion. Then the new symbols will be discussed at the next EFCE - WPM Meeting in 2002.

Item 7:
WPM Event in 2002.
The EFCE-WPM Meeting in 2002 will take place on the occasion of the 15th International Congress of Chemical and Process Engineering CHISA 2002 held in Prague (Czech Republic) in August 25 - 30, 2002. The microsymposium on "Mixing of Solid - liquid Suspensions" will be organize as a part of the Congress Programme. Delegates expressed their agreement with setting up the EFCE-WPM Event in 2002.

Item 8:
WPM Event in 2003.
The 11th European Conference on Mixing will be held in Bamberg Congress Center (Germany, Bavaria) in October 15 - 17, 2003. Prof. M. Kraume informed the delegates that the WP on Mixing (Mischvorgänge) of the GVC.VDI will establish an Organizing Committee (up to 15 members) and an International Panel of Referees of the submitted papers. The Conference will be organized in accordance and tradition with previous ones and its Proceedings will be available at its beginning. Delegates discussed this information and recommended to the Organizing Committee to try to publish selected papers of the Conference in a regular European journal of chemical engineering, e.g. in the German journal Chemical Engineering and Technology.

Item 9:
The 18th NAMF Mixing Conference.
The 18th Biennial Conference on Mixing "Mixing XVIII" will be held in Poconno Manor, Pennsylvania (USA) in June 24 - 29, 2001. 78 papers in 12 Sessions (oral and posters) have been accepted. The Conference is organized by the North American Mixing Forum (NAMF) and covers all topics of RTD of mixing technology. The Conference is co-sponzored by the EFCE - WPM.

Item 10:
Miscellaneous.
Prof. Ditl informed the delegates that Polish Society of Chemical Engineers nominated Prof. J. Baldyga as a member of the EFCE - WPM. Delegates expressed their agreement with the proposal.
Dr. J. Gyenis presented in absence a report on the recent activities of the WP on Mixing of the Hungarian Societies of Chemical Engineers (see Enclosure 4) and Dr. S. Vlaev presented a report on the recent activities of the WP on Mixing of Bulgarian Society of Chemical Engineers (see Enclosure 5). Delegates discussed both reports and appreciated recent development of RTD in mixing technology in Eastern Europe.
Delegates expressed their warm thanks to Dr. J. Bertrand, Dr. M. Poux and Dr. C. Xuereb for organization and preparation of the Conference ISMIP 4, above all for its importance for industrial mixing applications.

This meeting was held on 29 November 2000 in Montaigu (France) in the building of VMI-Rayneri, a French manufacturer of mixing equipment. It was initiated by two thematic groups of the French Society of Chemical Engineering, mixing and processes of formulation. The aim of the meeting "Mixing and formulation of viscous fluids and pastes" was to meet industrials, researchers and manufacturers of mixing equipment to discuss of this topic ; 68 participants have attended this meeting (33 industrials, 16 manufacturers, 19 researchers). The transversal aspect of this topic has been point out through the oral presentations coming from different application fields - cosmetics (l'Oreal), ciment (Lafarge), rubbers (Hutchinson), food technology (Amora-Maillle) paints (Cray-Valley), butimen (Total-Fina-Elf).

The oral presentations have been very pedagogical and they have shown the specifities of each appliaction and their scientific and technological limits.

Some common problems have been pointed out from discussion as the difficulty of measurements of rheology of some fluids, the technological problems relatives to the mixing apparatusses but also extruders, emulsification and the importance of the formulation. Discussion has been fed by the presence of th e most French manufacturers.

A visit of VMI-Rayneri has shown us the "Centre de Test" and the special room dedicated to "flour" and "without flour". The coordinators of two other thematic groups of the "French Society of Chemical Engineering" have also attended this meeting and they have presented the future work to be done in "CAPE" and "Food Processes".

The main objective of the new group "Processes of formulation" is to favour the transverse competences and to create some new interfaces. One of the objective of this group is also to organize workshops with others thematics groups as "Food technology", "CAPE" and "Divided solids".

The future actions have been proposed :
    - organization of the workshop on emulsification (from the physico-chemistry to the scale -up)
    - each member is invited to send some topics he would discuss.

The next "rendez-vous" has been fixed at ISMIP4, 4th International Symposium on Mixing in Industrial Processes, which will be hed in Toulouse from 14 to 16 may 2001.

1. Mixing of Rheologically Complex Fluids, February 22, 2001, King´s College, London (UK)
   8 oral papers (1 review paper)
   Scientific Secretary: Dr. W. Bujalski, Birmingham University (UK)
   
   
2. Arbeitssitzung der GVC-Fachausschüsse "Mehrphasenströmungen" und "Mischvorgänge", March 1 - 2, 2001, Wernigerode (Germany)
   14 oral papers on Mixing (1 review paper)
   Scientific Secretary: Prof. Dr. - Ing. M. H. Pahl, Universität - GH - Padeborn (Germany)
   
   
3. Partec 2001, International Congress for Particle Technology, March 27 - 29, Nuremberg (Germany)
   3 papers on Mixing
   Scientific Secretary: Prof. K. Leschonski, Universität Clausthal - Zellerfeld (Germany)
   
   
4. The 4th International Symposium on Mixing in Industrial Processes (ISMIP 4), May 14 - 16, 2001, Toulouse (France)
   34 oral papers and 30 posters (2 review papers)
   Scientific Secretary: Dr. J. Bertrand, ENSIGC-INP de Toulouse (France)
   
   
5. The 1st International Congress and the Second French Congress on Tracers and Tracing Methods, May 29 - 31, Nancy (France)
   Session on Mixing (8 papers)
   Scientific Secretary: Dr. L. Falk, ENSIC - INP de Lorraine (France)
   
   
6. The 3rd European Congress of Chemical Engineering (ECCE 3), June 26 - 28, Nuremberg (Germany)
   Session on Mixing (6 papers)
   Scientific Secretary: Prof. Dr.-Ing. G. Kreysa, DECHEMA, Frankfurt am Main (Germany)
   
   
7. MIXING XVIII, North American Mixing Forum, June 24 - 29, 2001, Pocono Manor, PE, USA
   63 oral papers (12 sessions) and 15 posters
   Scientific Secretary: Dr. D. Dickey, MixTech, Inc., Dayton, OH, USA
   
   
8. HUN Pra - Partec, International Conference on Practical Aspects of Particle Technology, August 21 - 24, Budapest (Hungary)
   Session on Mixing
   Scientific Secretary: Dr. S. Verdeg, Hungarian Chemical Society, Budapest, Hungary
   
   
9. The 2nd World Congress on Industrial Tomography, August 29 - 31, Hannover (Germany)
   Session on Mixing
   Scientific Secretaries: Prof. R. Mann, UMIST, Manchester (UK), Prof. D. Mewes, TU Hannover (Germany)
   
   
10. The 48th National Conference CHISA, October 15 - 18, Srní (Czech Republic)
    Session on Mixing
    Scientific Secretary: Dr. P. Seichter, TECHMIX, Ltd., Brno (Czech Republic)
    
    
11. AIChE Annual Meeting, November 5 - 9, Reno, USA.
    Session 06 "North American Mixing Forum" (5 Topical Sessions and 3 Co-sponsored Topical Sessions).
    Scientific Secretary: Prof. S. Kresta, Dept. of Chemical and Materials Engineering, University of Alberta, Edgmonton, Canada

During the last year, the local WP on Mixing, together with the Chemical Engineering Section of the Society of Hungarian Chemists, as well as with WP on Chemical Engineering of the Hungarian Academy of Sciences, and the Research Institute of Chemical and Process Engineerign (Veszprem) have organised several topical meetings, where mixing and mixer devices were also involved. Beside the regular meetings of these WPs, the most important event was the usual yearly National Conference on Chemical and Process Engineering, organized between April 25-27, 2000 in Veszprém. This latter one had a broader profile than mixing alone, but several papers presented at this conference were related to mixing processes. One of the plenary lectures was dealing with teh mathematical modeling of processes (among others mixing) taking place in disperse (miltiphase) systems. Five oral papers were also related to the results obtained in the field of mixing. Some important topics are: 1. Recent results on the study on flow field and homogenization in large cylindrical tanks, applying special fluid circulation and distribution methods. 2. Adsorption and mixing processes in three-phase fluidized bed fermentors. 3. Mixing and particle flows studies on particulate solids in model silus. 4. Particle flow and mixing in aero-kinetic channels. 5. Flow pattern and mixing in rolling bed and fluidized bed granulators.

In the field of mixing, research activities in Hungary were mainly directed towards the application of static mixers in various unit operations. The related R+D projects were carried out mainly at the Research Institute od Chemical and Process Engineering, University of Kaposvar, in cooperation with various industrial partners. First of all these activities were directed to solve environmental problems by applying new types of gas-liquid circulation reactors using combined methods of static mixers, jet mixers and effective gas-liguid contacting by circulation.

The Department of Unit Operations in Chemical Engineering, Technical University of Budapest, continued their research on mechanical stirrers.