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The International Zeolite Association (IZA) was organized in 1973 at the 3rd International Molecular Sieve Conference to promote and encourage the development of all aspects of zeolite science and technology.


Latest News

1-Mar-21The natural counterpart of zeolite A (LTA-type) discovered
A team of Colombian, Spanish and British scientists led by Carlos Alberto Ríos-Reyes has described the first occurrence of zeolite A in nature (Crystals, https://doi.org/10.3390/cryst11020218).
According to the authors, Na–A zeolite and associated mineral phases such as sodalite were formed by high diagenesis processes, temperatures around 80-100 °C and weathering contributions. These conditions allowed the geochemical remobilization and/or recrystallization of pre-existing silica, muscovite, kaolinite minerals group, salts, carbonates, oxides and peroxides. Scanning electron micrographs show the typical cubic morphology of Na–A zeolite with a particle size of approximately 0.45 µm. A literature review shows that this is an unusual example for the occurrence of natural zeolites in sedimentary marine rocks recognized around the world.
1-Mar-21Michael Stöcker becomes a Member of the Slovenian Academy of Engineering Sciences
The General Assembly of the Slovenian Academy of Engineering Sciences has elected Michael Stöcker as an International Member of the Academy on February 23, 2021, following the nominations passed on by the Section for Scientific Research as well as the Section for International Relations. The solemn inauguration ceremony is scheduled for autumn this year in Brdo pri Kranju (close to Ljubljana), Slovenia.
Congratulations for this great honor go to Michael Stöcker, who has served the international zeolite community for many years particularly as Editor-in-Chief of our journal Microporous and Mesoporous Materials and has been elected as honorary member of IZA.
4-Dec-20 Herman van Bekkum (1932 - 2020)
Herman van BeckumWe received the very sad news that Em. Prof. Dr. ir. Herman van Bekkum, who was one of the founders of the Dutch Zeolite Association (DZA) and the first President of the Federation of European Zeolite Associations (FEZA), passed away on November 30, 2020.
Herman van Bekkum was born in 1932 in Rotterdam. He graduated in chemical technology (1956) with Prof. Verkade and then obtained his Ph.D. (1959) with Prof. Wepster at the Delft University of Technology (TU Delft, back then TH Delft). After working for two years as a researcher at Shell, he returned to the TU Delft in 1961 with a position as Lecturer. In 1971, he was appointed as Professor in Organic Chemistry and Catalysis. From 1975 to 1976 he served as Rector Magnificus of the TU Delft. Through the years he covered other important positions, including Chairman of the KNCV (Royal Netherlands Chemical Society) and Chairman of the Innovative Carbohydrates Research Program. In 1995 he was elected Member of the KNAW (Royal Netherlands Academy of Arts and Sciences). In 1991 he was appointed Knight in the Order of the Netherlands Lion and in 2007 Officer in the Order of Orange-Nassau.
His research focused on two main topics: zeolites and carbohydrate chemistry, with an overarching interest for catalytic conversion of organic compounds. We all remember him for his scientific qualities and his liveliness and enthusiasm in participating in scientific discussions, also for many years after his official retirement in 1998. People who met him at the TU Delft would certainly remember his availability in providing useful scientific advice to young researchers that knocked at the door of his office, which had a table covered with books, papers and models of zeolite structures that proved his never-ending enthusiasm for his research. He was also a familiar and welcome presence at the Netherlands’ Catalysis and Chemistry Conference, which he regularly attended until recent years. People that met him and talked with him would remember not only the brilliant scientist but also a person with many other passions and with whom the conversation was always enriching, regardless whether the topic was a zeolite framework, his Alfa Romeo or playing chess.
In this sad moment our thoughts go out to the family of Prof. Herman van Bekkum. His memory will remain with us and hopefully we will be able to pass what we learnt from him to the next generations.
On behalf of the Dutch Zeolite Association and of the Dutch Catalysis Society,
Prof. Dr. Paolo P. Pescarmona
16-Oct-20 Klaus Unger (1936 – 2020)
Our friend and colleague Klaus Unger passed away after a short illness on October 7th 2020. We have lost an excellent scientist, a wonderful mentor, a dear friend, in short: a true “Mensch”.
Klaus was highly successful in two rather separate fields of science, in zeolite science and in chromatography, both connected by his deep interest in porous materials. His early work on innovative silica-based stationary phases for chromatography led him to broaden his interest to zeolites and later on to ordered mesoporous materials. His science was always characterized by the combination of a deep understanding of the fundamentals of the materials he worked on and a keen eye for practical applications. He was therefore always a sought-after partner for industrial companies, and his many decade long relationships to Merck at Darmstadt, only a few kilometres away from his home in Seeheim-Jugenheim, testifies of the importance of his research also for industry. Klaus loved the area, with the vineyards of the Rheingau, the Odenwald, and the Spessart close by for extended hikes. So after his habilitation inrmstadt, he only moved across the Rhine to Mainz to become a professor for Analytical Chemistry, and stayed with Mainz University until his retirement in 2001.
Klaus had colleagues and friends basically anywhere in the world, and all of them enjoyed him as a partner for scientific collaborations and beyond. He has served on IUPAC committees for the characterization of porous solids, he co-initiated a number of high profile conference series, and he was always active in various scientific organization, such as the IZA, the German Fachgruppe Zeolithe (DECHEMA), or the Arbeitskreis Chromatographie of the Fachgruppe Analytische Chemie of the German Society for Chemistry (GDCh). He was one of the founding members of Federation of European Zeolite Associations (FEZA) as the chairman of the German Zeolite Association at that time, and served as the first treasurer. Born in Zwickau, which was for about 40 years part of East Germany, he always kept links to the colleagues in the former GDR also during the separation of the two countries, and after Germany’s reunification, he played a very active role in helping to re-integrate the science between East and West Germany in the field of porous materials and separation science.
Prof. Unger was loved by his students and coworkers. They enjoyed scientific freedom, support wherever it was needed, and the overall very warm, welcoming and extremely friendly atmosphere in the group. Within hours after the news of his passing away spread, there were dozens of emails expressing the sadness of his former co-workers, and one quote from the mails stands for all of them: “one of a kind with the biggest generous heart”. This is how we all feel – it was a privilege to have known Klaus, and the zeolite community will miss him dearly from now on.

14-Sep-19  Jens Weitkamp (1942 - 2019)

Professor Dr.-Ing. Jens Weitkamp, the former director of the Institute of Chemical Technology of the University of Stuttgart passed away in Paris on August 25, 2019, the same town in which he was born on June 5, 1942. Jens Weitkamp studied chemistry at the Universities of Berlin and Karlsruhe. In 1971 he completed his doctoral studies under the supervision of Professor Dr. H. Pichler and his habilitation a few years later at the Engler-Bunte Institute of the University of Karlsruhe with Prof. Dr. K. Hedden. In 1986, Jens Weitkamp became Professor of Chemical Technology at the University of Oldenburg. In 1988 he took over a Full Professor position for Chemical Technology at the University of Stuttgart.
High quality research on upgrading of crude oil and natural gas as well as petrochemistry has determined the scientific life of Jens Weitkamp and he has advanced these fields to a very large extent. Examples are refinery processes like cracking, hydrocracking, isomerisation, alkylation, reforming and demetallization as well as petrochemical reactions like alkylation of aromatics, transalkylation and epoxidation. Jens Weitkamp has advanced our understanding of zeolites and porous materials significantly.
In his service to the International Zeolite Association, he served on the IZA council from 1994 till 2001 acting as the vice-president from 1994 to 1997 and the president from 1997 to 2001. He also served as the Chairman of the 10th International Zeolite Conference (IZC), held in Garmisch-Partenkirchen in 1994. In 1993, Jens Weitkamp founded the scientific journal “Microporous Materials”, which he edited until the merger with “Zeolites” in 1997. From 1998 to 2003 he edited the new scientific journal “Microporous and Mesoporous Materials” as Editor-in-Chief, which became the leading journal within the field of zeolites and porous materials. Jens Weitkamp received a number of highly ranked recognitions among them are the Alwin-Mittasch-Prize of the DECHEMA (2010) and the
Carl-Engler Medal (2002) of the German Society for Petroleum and Coal Science and Technology (DGMK). He became Corresponding Member of the Saxon Academy of Sciences and Humanities in 2003.
The scientific community devoted to the research of zeolites, porous materials and heterogeneous catalysis shows great respect for the lifetime achievement of Jens Weitkamp and we regret the loss of this excellent scientist, teacher and human being. We will keep him in our memories. Our thoughts go to Sophie, his companion for the last ten years.

News from the IZC-19 in Perth

Tina Düren (UK)
Zhongmin Liu (China)
Svetlana Mintova (France)
Masaru Ogura (Japan)
Yong Ki Park (Korea)
Jeffrey Rimer (USA)
Michael Stockenhuber (Australia)

Martin Hartmann, President
Zhongmin Liu, Vice-President
Heloise Pastore, Secretary
Jeffery Rimer, Treasurer   

At a Business Meeting, the IZA Board selected the venue for the 22nd IZC in 2025:
Dalian, China        

The next IZC will be held in 2022 in Valencia, Spain.   

IZA Honorary Memberships were given to:                          

Christian Baerlocher
of the ETH, Zurich, Switzerland
for the renowned contribution to the structural chemistry of zeolites  and for the devoted service to the design and maintenance of the Database of Zeolite Structure.

Giuseppe Bellussi
Eni SpA, Italy
for the outstanding contribution to zeolite science and technology and for the great service as President of the IZA.

Takashi Tatsumi
of the Tokyo University of Technology, Tokyo, Japan                                                         
for the outstanding contribution to zeolite synthesis and catalysis and for the dissemination of zeolite science.

The new IZA Ambassador, the recepient of the 2019 IZA award is:

Wilhelm Schwieger
of the University of Erlangen, Erlangen, Germany
for important contributions to zeolite science and technology resulting in commercial applications of zeolites.

The first Young Researcher Award (YRA) of the Iinteranational Zeolite Association has been attributed to:

Manuel Moliner
of the Institute of Chemical Technology (ITQ), Valencia, Spain
for novel synthesis methods to obtain nanosized zeolites and to control active sites distribution in zeolite catalysts.

The award is sponsored by ExxonMobil

The 2019 Don Breck Award has been attributed to the team:

Stephen K. Brand, Joel E. Schmidt, Michael W. Deem, Frits Daeyaer, Yanhang Ma, Osamu Terasaki, Marat Orazov, Mark E. Davis

for the discovery of enantiomerically enriched STW zeolite.


 The IZA president Valentin Valtchev (middle) with Manuel Moliner (left) recipient of the Young Researcher Award

 and Mark Davis (right) recipient of the 2019 Don Breck Award.

20-Jun-19 Alberto Alberti (1938 - 2019)

6-Mar-19 News from the Italian Zeolite Association
1-Mar-19 New reports from the Natural Zeolite Commission

7-Feb-19 Harry Edwin Robson (1927 - 2019)

4-Feb-19 Stefan Ernst (1960 - 2019)


News from the IZA board: a Young Researcher Award established
22-Nov-18 Nominations for the 2019 Donald W. Breck Award invited
1-Nov-18 News from the MOF commission

6-Oct-18 Proposals for the organization of the 21st International Zeolite Conference
13-Apr-18 Garcia Martinez receives the Kathyrin Hach Award
9-Apr-18 Jiři Čejka receives the Werner von Siemens Award 


Links to the IZA Commission Websites

last updated: 11-February-2020