Hideki Yamamoto

TL;DR: In this article, the mechanism of zeolite crystallization and the role of alkali solution on the synthesis reaction were considered. And the changes in various physical and chemical properties, such as crystal structure, surface structure and cation exchange capacity, of the obtained zeolites and the dissolved amount of Si 4+ and Al 3+ in alkali solutions were investigated during the hydrothermal reaction.

TL;DR: In this paper, the Hansen solubility parameters (HSPs) of oxygen were determined from the measured solubilities in the pure solvents, where the HSPs of oxygen are δd = 6.7 MPa1/2, δp = 0.944 kPa, and δh = 3.8 MPa 1/2.

TL;DR: In this paper, a compact AOP reactor that generates ozone by UV irradiation was developed, and the ozone was generated using the Chapman method, i.e., by irradiating oxygen with UV light; the use of this method saves energy.

TL;DR: In this paper, four important polymers, namely polyvinyl chloride (PVC), polycarbonates (PC), poly acetal (POM), and polyphenylene ether (PPE), were successfully separated from their synthetic mixtures using common wetting agents like sodium ligninsulfonate, tannic acid, Aerosol OT and saponin.

TL;DR: In this paper, the Hansen solubility parameters (HSPs) of asphaltenes extracted from oil sand bitumen samples produced at Athabasca in Canada and also from a vacuum residue fraction (VR) produced in the Middle East were determined.