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公开(公告)号：AT444314T
公开(公告)日：2009-10-15
申请号：AT06762534
申请日：2006-07-11
Applicant: BASF SE
Inventor： BODE ANDREAS , RACHWALSKY UWE , SAUER FRIEDRICH , SCHAUSS ECKARD , VOLLAND MARCO-CHRISTIAN , WETTLING THOMAS
Abstract: The present invention relates to a process for preparing polyisobutenes by polymerizing isobutene in the presence of a Lewis acid catalyst in liquid organic phase, terminating the reaction by admixing the organic phase with an aqueous terminator in a dynamic mixer which has a rotationally symmetric mixing chamber formed from one circumferential wall and two end walls, and a mixing rotor driven such that it rotates therein, the organic phase being introduced through a first inlet orifice provided in the circumferential wall and the aqueous terminator via a second inlet orifice provided in the circumferential wall, and removing a finely dispersed mixture of the organic phase and of the terminator through an outlet orifice provided in the circumferential wall and feeding it to a phase separation. The process serves to prepare high-reactivity polyisobutenes and/or polyisobutenes with narrow molecular weight distribution.
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公开(公告)号：SG11201401042RA
公开(公告)日：2014-09-26
申请号：SG11201401042R
申请日：2012-10-10
Applicant: BASF SE
Inventor： KÖNIG HANNAH MARIA , URBAN RAINER , MÜHLBACH KLAUS , WETTLING THOMAS , RACHWALSKY UWE , HIRSCH STEFAN , BERG ANNE , MACH HELMUT
Abstract: Production of isobutene homo- or copolymers having a number average molecular weight of 500 to 5,000,000 by polymerisation of isobutene or an isobutene-containing monomer mixture in the presence of a Lewis acid or a complex containing a Lewis acid as a polymerisation catalyst, the polymerisation being performed in the presence of at least one hemiacetal or acetal, which can be obtained by protonic acid-catalysed reaction of at least one C1 to C12 hydrocarbyl alcohol with at least one aldehyde or ketone having 1 to 12 carbon atoms.
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公开(公告)号：DE502006004991D1
公开(公告)日：2009-11-12
申请号：DE502006004991
申请日：2006-07-11
Applicant: BASF SE
Inventor： BODE ANDREAS , RACHWALSKY UWE , SAUER FRIEDRICH , SCHAUSS ECKARD , VOLLAND MARCO-CHRISTIAN , WETTLING THOMAS
Abstract: The present invention relates to a process for preparing polyisobutenes by polymerizing isobutene in the presence of a Lewis acid catalyst in liquid organic phase, terminating the reaction by admixing the organic phase with an aqueous terminator in a dynamic mixer which has a rotationally symmetric mixing chamber formed from one circumferential wall and two end walls, and a mixing rotor driven such that it rotates therein, the organic phase being introduced through a first inlet orifice provided in the circumferential wall and the aqueous terminator via a second inlet orifice provided in the circumferential wall, and removing a finely dispersed mixture of the organic phase and of the terminator through an outlet orifice provided in the circumferential wall and feeding it to a phase separation. The process serves to prepare high-reactivity polyisobutenes and/or polyisobutenes with narrow molecular weight distribution.
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