Polyethylene from Ethanol/Manufacturing Instructions

Ethanol dehydration catalyst preparation protocol

Base treated gamma aluminium oxide has been report to have 90%+ yields and 97%+ selectivity and could be a 1st generation catalyst.

Gamma aluminium oxide doped with Ti02 has been reported to have 99%+ yields and selectivity and has been shown to be superior to other metals.

"30 g g-Al2O3 powder with BET specific surface areas of 200 m2/g are diluted and mixed well with a small quantity of 0.5 mol/L Na2CO3 solution in a three-necked rounded-bottomed flask. Then, 0.19 mol/L Ti(SO4)2 aqueous solution and 0.5 mol/L Na2CO3 solution are added simultaneously to the flask, and agitate well with a magnetic stirrer. Keep the pH of the solution at 7–8, and then the material is washed to eliminate (SO4)2 via a centrifugal machine, followed by dried at 110 8C for 8 h and calcined at 500 8C for 4 h. Finally, the TiO2/g-Al2O3 catalysts with the size of 30–50 mesh are obtained after forming, crushing and sieving" Chen et al.

Protocol for preparation:

Prepare reagents