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公开(公告)号：CA1145288A
公开(公告)日：1983-04-26
申请号：CA347043
申请日：1980-03-05
Applicant: BASF AG
Inventor： VOLKAMER KLAUS , BROELLOS KLAUS , LINDNER ALFRED , WAGNER ULRICH , WEITZ HANS-MARTIN , SCHNEIDER KLAUS-JUERGEN
Abstract: A process for isolating a conjugated diolefin from a C4- or C5-hydrocarbon mixture containing the diolefin, by single-stage or multi-stage extractive distillation using a selective solvent, wherein the selective solvent is a solvent mixture which comprises: a) from 75 to 98 per cent by weight of an N-alkylsubstituted lower aliphatic acid amide or of an N-alkylsubstituted alicyclic acid amide having 5 ring members, boiling at from 140 to 260.degree.C, or butyrolactone or methoxypropionitrile and b) from 2 to 25 per cent by weight of acetonitrile.
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公开(公告)号：CS219323B2
公开(公告)日：1983-03-25
申请号：CS745076
申请日：1976-11-18
Applicant: BASF AG
Inventor： APPL MAX , WAGNER ULRICH , HENRICI HANS J , KUESSNER KLAUS , VOLKAMER KLAUS , FUERST ERNST
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公开(公告)号：AU3861778A
公开(公告)日：1980-02-07
申请号：AU3861778
申请日：1978-08-03
Applicant: BASF AG
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公开(公告)号：CA779361A
公开(公告)日：1968-02-27
申请号：CA779361D
Applicant: BASF AG
Inventor： WEITZ HANS-MARTIN , KROEPER HUGO , RITZ JOSEF , WAGNER ULRICH
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公开(公告)号：CA751504A
公开(公告)日：1967-01-24
申请号：CA751504D
Applicant: BASF AG
Inventor： WEITZ HANS-MARTIN , KROEPER HUGO , WAGNER ULRICH
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Patent Agency Ranking
公开(公告)号：FR1393024A
公开(公告)日：1965-03-19
申请号：FR973544
申请日：1964-05-06
Applicant: BASF AG
Inventor： FRIZ HANS , REICHERT MARTIN , WAGNER ULRICH
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公开(公告)号：CA1214024A
公开(公告)日：1986-11-18
申请号：CA448938
申请日：1984-03-06
Applicant: BASF AG
Inventor： WAGNER ECKHART , VOLKAMER KLAUS , HEFNER WERNER , WAGNER ULRICH
Abstract: C02 and/or H2S are removed from gases which contain C02 and/or H2S by means of an aqueous absorption liquid containing an alkanolamine, by a process wherein the said gas is treated, in an absorption stage, at from 40 to 100.degree.C, with an aqueous absorption liquid containing from 20 to 70% by weight of methyldiethanolamine, the treated gas is taken off at the top of the absorption stage, the aqueous absorption liquid laden with C02 and/or H2S is taken off at the bottom of this stage and is regenerated by being let down in two or more flash stages, and the final flash stage is operated under reduced pressure and the regenerated absorption liquid is recycled to the absorption stage.
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公开(公告)号：NO854706L
公开(公告)日：1986-06-12
申请号：NO854706
申请日：1985-11-25
Applicant: BASF AG
Inventor： WAGNER ECKHART , VOLKAMER KLAUS , HEFNER WERNER , WAGNER ULRICH , SCHUBERT FRANZ
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公开(公告)号：NO854706A
公开(公告)日：1986-06-12
申请号：NO854706
申请日：1985-11-25
Applicant: BASF AG
Inventor： WAGNER ECKHART , VOLKAMER KLAUS , HEFNER WERNER , WAGNER ULRICH , SCHUBERT FRANZ
CPC classification number: B01D53/1406 , B01D53/1462 , Y02C10/06
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公开(公告)号：NO851263L
公开(公告)日：1985-09-30
申请号：NO851263
申请日：1985-03-28
Applicant: BASF AG
Inventor： VOLKAMER KLAUS , HEFNER WERNER , WAGNER ECKHART , WAGNER ULRICH
Abstract: 1. A process for removing CO2 and/or H2 S from a gas containing CO2 and/or H2 S by washing the gas with an aqueous alkanolamine-containing absorption liquid and subsequently regenerating the latter, wherein the aqueous absorption liquid used contains from 3 to 60% by weight of methyldiethanolamine and from 1 to 50% by weight of monoethanolamine, processes with two absorption stages arranged in series, in which regeneration of the laden absorption liquid is carried out using two flash stages and a stripping zone, to the extent they utilize an absorption liquid containing from 0.05 to 1 mole of monoethanolamine per litre, being excluded.
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