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公开(公告)号：DE3735937A1
公开(公告)日：1989-05-03
申请号：DE3735937
申请日：1987-10-23
Applicant: BASF AG
Inventor： BULLACK HORST , BELL HANS , WURZEL MANFRED , OEDER DIETER DR
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公开(公告)号：DE3882004D1
公开(公告)日：1993-07-29
申请号：DE3882004
申请日：1988-10-15
Applicant: BASF AG
Inventor： BULLACK HORST , BELL HANS , WURZEL MANFRED , OEDER DIETER DR
Abstract: Prodn. of low pressure olefin polymers (I) is carried out by polymerisation of the monomers (II) at 5-50 bar and max. 110 deg.C in low boiling hydrocarbons (III) as suspension medium in a polymerisation zone, sepn. of the resultant polymers from most of (III) in a pressure relief zone by reducing the pressure and removing the residual (III) and (II) in a drying zone at 1-1.2 bar by introducing an inert gas (IV) stream. The novel features are that (a) the pressure in the pressure relief zone is reduced to 1.5-3 bar; and the pressure relief and drying zones are connected by a gas-tight bucket wheel lock. Pref. the pressure is reduced to 1.5-2 bar in the pressure relief zone. The drying zone consists of 2 zones in series, both purged with (IV) in countercurrent.
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公开(公告)号：AT90947T
公开(公告)日：1993-07-15
申请号：AT88117212
申请日：1988-10-15
Applicant: BASF AG
Inventor： BULLACK HORST , BELL HANS , WURZEL MANFRED , OEDER DIETER DR
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