ChemInform Abstract: ISOPROPYL ALCOHOL BY DIRECT HYDRATION OF PROPYLENE

Abstract

Die Herstellung von Isopropanol (II) durch direkte Hydratisierung von Propylen (I) nach den Verfahren der Veba‐Chemie, der Deutschen Texaco und insbesondere der Tokuyama Soda wird ausführlich behandelt.

Lewis Acids: From Conventional Homogeneous to Green Homogeneous and Heterogeneous Catalysis

“…By using relatively low concentrations of HPA, Tokuyama Soda was able to produce isopropyl alcohol from propylene and H 2 O with 70% conversion and 99% selectivity. 788 Isobutene is hydrated selectively in the mixture of butenes present in the C 4 streams from steam or catalytic cracking. For the selective hydration, an aqueous solution of highly concentrated (up to 0.8 M) HPA at 60-80 °C is used.…”

“…By using relatively low concentrations of HPA, Tokuyama Soda was able to produce isopropyl alcohol from propylene and H 2 O with 70% conversion and 99% selectivity …”

Changes of Surface Properties and Water-Tolerant Catalytic Activity of Solid Acid Cs2.5H0.5PW12O40in Water

“…Among heteropoly compounds, dodecatungstophosphoric acid, H 3 PW 12 O 40 , is characterized by its strong acidity being classified into a “superacid” , An acidic cesium salt of H 3 PW 12 O 40 , Cs 2.5 H 0.5 PW 12 O 40 , also possesses a strong acidity 2a 2a, Various acid-catalyzed reactions such as alkylation, ester decomposition, acylation, Diels−Alder reaction, and skeletal isomerization of n -butane 4b,9 have been reported to proceed on Cs 2.5 H 0.5 PW 12 O 40 .…”