摘要 |
A continuous process for the preparation of propylene oxide, comprising (i) providing a liquid feed stream comprising propene, hydrogen peroxide, acetonitrile, water, dissolved potassium dihydrogen phosphate, and optionally propane; (ii) passing the liquid feed stream provided in (i) into an epoxidation reactor comprising a catalyst comprising a titanium zeolite of structure type MWW, and subjecting the liquid feed stream to epoxidation reaction conditions; (iii) removing an effluent stream from the epoxidation reactor; wherein the concentration of the dissolved potassium dihydrogen phosphate in the liquid feed stream is at least 10% of the solubility limit of the potassium dihydrogen phosphate in the liquid feed stream. |
申请人 |
BASF SE;DOW GLOBAL TECHNOLOGIES LLC |
发明人 |
TELES, JOAQUIM HENRIQUE;SEELIG, BIANCA;RIEDEL, DOMINIC;KAMPE, PHILIP;URBANCZYK, DANIEL;WEBER, MARKUS;MÜLLER, ULRICH;PARVULESCU, ANDREI-NICOLAE;SCHRÖDER, ALEXANDER;WEIDENBACH, MEINOLF;WITZL, WERNER |