Process for the manufacture of aldehydes and HDA and other alcoh

Details Process for the manufacture of aldehydes and HDA and other alcoh Process for the manufacture of aldehydes and HDA and other alcoh

1976-01-07

1977-06-28

Evans, Joseph E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260638B, C07C 4702, C07C 4500, C07C 2914

Patent

active

040325784

ABSTRACT:
A new process for the manufacture of aldehydes by aldol condensation using a feed consisting of crude, high conversion, demetalled conventional oxo product is described. In another embodiment a new process for the manufacture of hexadecyl alcohol and related alcohols using the above-described feed is also set forth. The process is a uniphase aldol condensation process utilizing small quantities of basic catalyst and operating above certain minimum threshold temperatures. The process is operable with crude oxo feeds that contain as much as 40% by weight acetals. Process conditions are described which enable reversion of the acetals to aldehydes and alcohols thereby allowing concurrent condensation of reactive components with high selectivities to the product alcohols and aldehydes. The products of the process, such as hexadecyl alcohol, are well known and have many uses, such as in the formulation of cosmetic products.

REFERENCES:
patent: 2485989 (1949-10-01), Smith
patent: 2757200 (1956-07-01), Jones et al.
patent: 2809220 (1959-10-01), Mertzweiller et al.
patent: 2810762 (1957-10-01), Ernst et al.
patent: 2848498 (1958-08-01), Mention
patent: 3148218 (1964-09-01), Heimsch et al.
patent: 3432557 (1969-03-01), Wile

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