公开(公告)号：MY143352A

公开(公告)日：2011-04-29

申请号：MYPI20080521

申请日：2006-08-23

Applicant: BASF SE

Inventor： ERICH LORENZ RUDOLF ,  ROLF PINKOS ,  MICHAEL STEINIGER ,  GRED SCHAEFER

IPC: C07C29/17

Abstract: METHOD FOR THE SEPARATION OF POLYMERIC BY-PRODUCTS FROM 1,4-BUTYNEDIOL ABSTRACT 5 THE PRESENT INVENTION RELATES TO A PROCESS FOR PURIFYING 1,4-BUTYNEDIOL. WHICH COMPRISES PROCESSING 1,4-BUTYNEDIOL IN A DYNAMIC MIXING APPARATUS IN AN INERT GAS ATMOSPHERE AT FROM 25 TO 150'C AT A SHEAR RATE IN THE RADIAL GAP BETWEEN ROTOR AND STATOR OF THE MIXING APPARATUS OF MORE THAN 1 00 000 SEC-1, AWAITING PHASE SEPARATION AT TEMPERATURES OF FROM 25 TO 150'C AND SEPARATING OFF THE BOTTOM PHASE, AND A PROCESS 1 0 FOR THE HYDROGENATION OF 1,4-BUTYNEDIOL TO 1,4-BUTENEDIOL AND 1,4-BUTANEDIOL USING THE PURIFIED 1,4-BUTYNEDIOL.