US 11,746,075 B2
Method for the simultaneous production of sodium and potassium alcoholates
Dirk Roettger, Cologne (DE); Sebastian Reimann, Wesseling (DE); Manfred Neumann, Marl (DE); Moritz Schröder, Muenster (DE); Philip Zitzewitz, Haltern am See (DE); Niklas Paul, Marl (DE); and Armin Matthias Rix, Marl (DE)
Assigned to Evonik Functional Solutions GmbH, Niederkassel (DE)
Appl. No. 17/759,143
Filed by Evonik Functional Solutions GmbH, Niederkassel (DE)
PCT Filed Nov. 30, 2020, PCT No. PCT/EP2020/083877
§ 371(c)(1), (2) Date Jul. 20, 2022,
PCT Pub. No. WO2021/148174, PCT Pub. Date Jul. 29, 2021.
Claims priority of application No. 20153334 (EP), filed on Jan. 23, 2020.
Prior Publication US 2023/0028559 A1, Jan. 26, 2023
Int. Cl. C07C 29/70 (2006.01); C07C 29/80 (2006.01)
CPC C07C 29/705 (2013.01) [C07C 29/80 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A process for producing sodium alkoxide of the formula RONa and potassium alkoxide of the formula ROK, the process comprising;
(a) reacting ROH with NaOH in countercurrent, wherein the RONa and a vapour B1 comprising water and ROH are obtained,
(b) reacting ROH with KOH in countercurrent, wherein the ROK and a vapour B2 comprising water and ROH are obtained,
wherein R is a C1-C6-hydrocarbon radical,
wherein the reactions according to (a) and (b) proceed simultaneously and are spatially separated,
wherein the vapour B1 and the vapour B2 are at least partially mixed to give g mixed vapour BM comprising ROH and water, and
wherein the ROH is at least partially separated off from BM by distillation.