King Fahd University of Petroleum and Minerals

Niladri Maity

Samir Barman

Ea Jaseer

Zainab Al-Mansaf

Nabil Al-Yassir

Samiyah Abdullaziz Al-Jendan

A method of acrylate salt production includes reacting ethylene gas in the presence of a metal precursor solution including a base, an additive, a metal precursor, a solvent and a ligand, in an autoclave, to form a metal complex intermediate solution. Further, COreacts with the metal complex intermediate solution to form an ester intermediate solution, which is reacted to form an acrylate salt product mixture. The acrylate salt is extracted thereafter. The COis reacted at a temperature in a range from 100° C. to 200° C., where the metal precursor is tetrakis(triphenylphosphine)palladium(0) and the concentration of tetrakis(triphenylphosphine)palladium(0) in the metal precursor solution is in a range from 0.0005M to 0.003M. The additive is sodium formate and the solvent is selected from the group consisting of N-cyclohexyl-2-pyrrolidone, tetrahydrofuran, and combinations thereof. The turnover number is greater than or equal to 100.

Catalytic method for acrylate production

A method of dimethyl carbonate production includes reacting COand methanol in the presence of a heteroatom-modified cerium oxide catalyst to form dimethyl carbonate. The heteroatom-modified cerium oxide catalyst includes an element selected from the group consisting of N, S and combinations thereof, in an amount ranging from 0.05 to 2 wt. % based on the total weight of the heteroatom-modified cerium oxide catalyst. The heteroatom-modified cerium oxide catalyst is in the form of nanorods with an average diameter in a range from 1 to 50 nm and an average length in a range from 10 to 700 nm. The dimethyl carbonate yield is greater than or equal to 40 mmol·g.

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Dhahran, Saudi Arabia

Niladri Maity