Heterogeneous ethylene hydroformylation permits extremely environment friendly industrial manufacturing of propanal/n-propanol

The economic facility of fifty kt/12 months propanal/n-propanol by heterogeneous ethylene hydroformylation. Credit score: LI Cunyao

Olefins, hydrogen, and carbon monoxide might be transformed to aldehydes by the hydroformylation of olefins. Upon additional conversion, chemical compounds together with alcohols, acids, and esters are obtained.

Nonetheless, business hydroformylation primarily employs homogeneous know-how, which might trigger issues together with separation between catalyst and product, leaching of valuable metals and ligands, huge solvent points, and inefficient use of warmth from the exothermic response.

Now, a analysis crew led by Prof. Ding Yunjie and Prof. Yan Li from the Dalian Institute of Chemical Physics (DICP) of the Chinese language Academy of Sciences (CAS) has realized the highly-efficient industrial manufacturing of propanal/n-propanol by way of heterogeneous ethylene hydroformylation.

Primarily based on heterogeneous ethylene hydroformylation know-how, the power with propanal/n-propanol yield of fifty kt/12 months was put into operation in August 2020 in Ningbo, China. To date, it has been in secure operation for 22 months.

The heterogeneous hydroformylation know-how adopts porous natural polymers with giant particular floor space and hierarchical porous construction as each provider and ligand. It metalates rhodium ions to type single-Rh-sites catalyst with good efficiency and excessive stability utilizing a number of Rh-P coordination bonds.

“The utilization price of valuable metals of this heterogeneous hydroformylation know-how is almost 100%, thereby making the leaching of valuable metals and ligand negligible,” mentioned Prof. Ding. “And there’s no value within the separation of catalyst and product on this course of.”

“The response system is solvent-free, and the merchandise have excessive purity. Furthermore, a considerable amount of low-grade response warmth might be effectively used within the hydroformylation and hydrogenation response,” mentioned Prof. Yan.

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Chinese language Academy of Sciences

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Heterogeneous ethylene hydroformylation permits extremely environment friendly industrial manufacturing of propanal/n-propanol (2022, Could 16)
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