[EN] SIMPLE MANUFACTURING AND PURIFICATION TECHNOLOGY FOR HIGH PURITY PROPOFOL<br/>[FR] TECHNOLOGIE DE PRODUCTION ET DE PURIFICATION SIMPLE POUR PROPOFOL DE HAUTE PURETÉ
申请人:CHODANKAR NANDKUMAR
公开号:WO2021156776A1
公开(公告)日:2021-08-12
A process for manufacturing Pure Propofol with a purity of more than 99.90% is disclosed, said process comprising dissolving Crude Propofol in a solvent in which it is soluble to form a solution, treating the solution with aqueous alkali to form an aqueous alkali layer and a solvent layer, separating the aqueous alkali layer from the solvent layer using a phase separation technique, distilling off the solvent from the solvent layer, and distilling a residue of the solvent containing Propofol using steam or boiling water in a presence of dilute alkali and antioxidant like metabisulfite, under normal pressure or mild vacuum.
本发明揭示了一种制造纯度高于99.90%的纯丙泊酚的工艺,该工艺包括将粗丙泊酚溶解在其可溶的溶剂中形成溶液,用水性碱处理溶液以形成水性碱层和溶剂层,使用相分离技术将水性碱层与溶剂层分离,从溶剂层中蒸馏出溶剂,并在常压或轻度真空下,使用蒸汽或沸水在稀碱和亚硫酸盐等抗氧化剂的存在下,蒸馏含有丙泊酚的溶剂残留物。