New powder material Nano-sized Zeolite Zeoal


Nano-sized Zeolite 4A 3A 5A ZSM-5 Application examples sample spec catalog

Realized practical-level production cost

Nakamura Choukou Co., Ltd., in collaboration with Tokyo University, developed an innovative production process for zeolite nano-particles by utilizing the crushing and recrystallizing technology held by the University, and succeeded in production of low-cost nano-sized zeolite powder.
While maintaining zeolite’s inherent functions such as adsorption, this technology allows to minimize the particle size to 50 - 300 nm.
By minimizing the particle size to an unnoticeable level by human five senses, this technology does not damage the basic properties and esthetics of the target objects to which the function is added. The technology opens the door to possibilities widely, for example, optical application which requires light transparency, and addition to tiny fibers.

Production method of fine zeolite

Expected influence of nano-sizing

Zeolite is composed of mainly silica (silicon dioxide) and alumina (aluminum oxide), and characterized by a microporous molecular structure, and has a large surface area equivalent to over one tennis court per gram.

Because of this property, zeolite possesses the functions of “adsorption,” “ion exchange,” and “catalyst,” and is used broadly in the chemical field, as a catalyst for purifying the exhaust gas from automobiles; in the environmental field, as an adsorbent for radioactive cesium; and in the daily-life field, as an antibacterial agent for masks, and others. Micron-size particles are currently distributed, but when the particle size reaches the nano level, the above basic functions will improve drastically, and they will be used for new purposes.

However, the conventional method for producing nano-sized particles takes a lot of cost, and so concrete market evaluation has not progressed.

In these circumstances, Nakamura Choukou commenced the development of an innovative process for producing nano-sized zeolite by utilizing the nano-technology nurtured by the Company for many years in parallel with the life science business and the “Crushing and Recrystallizing Process” technology owned by Tokyo University, and then succeeded in producing “nano-sized zeolite,” whose particle size is one millionth of ordinary zeolite, at low cost.
(This “Crushing and Recrystallizing Process” is patent-pending.)

Expected influence of nano-sizing
In Aug. 2016, the collaborative research between Nakamura Choukou and Tokyo University titled “Method for producing fine zeolite and Particle size control technology” was adopted as Stage III (NexTEP-A type), one of “A-STEP,” which is the program for supporting the optimization of research results offered by Japan Science and Technology Agency.

-