专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

EP1015411B1 VERFAHREN ZUR FRAKTIONIERTEN KONDENSATION EINES ACRYLSÄURE ODER METHACRYLSÄURE ENTHALTENDEN HEISSEN GASGEMISCHES MIT EINEM HOHEN ANTEIL NICHT KONDENSIERBARER KOMPONENTEN 有权
标题翻译：分凝丙烯酸或甲基丙烯酸的方法CONTAINING HOT气体混合物与高百分比的非冷凝组分
公开(公告)号：EP1015411B1
公开(公告)日：2003-06-11
申请号：EP98950022.8
申请日：1998-09-10
申请人： BASF AKTIENGESELLSCHAFT
发明人： ECK, Bernd , MACHHAMMER, Otto , PROLL, Theo , SCHLIEPHAKE, Volker , THIEL, Joachim , BRÖLLOS, Klaus
IPC分类号： C07C57/07
CPC分类号： B01D5/003 , C07C51/44 , C07C57/04
摘要： The invention relates to a method for the fractional condensation of a gas mixture which contains at least one other condensable constituent in addition to acrylic acid or methacrylic acid and which also has a high proportion of one or several non-condensable constituents. According to said method, the gas mixture is passed through a column with separation-efficient baffles and the condensable constituents are condensed out by cooling.

2. 发明授权

EP1015410B1 VERFAHREN ZUR HERSTELLUNG VON ACRYLSÄURE UND METHACRYLSÄURE 有权
标题翻译：用于生产丙烯酸和甲基丙烯酸
公开(公告)号：EP1015410B1
公开(公告)日：2002-04-03
申请号：EP98948948.9
申请日：1998-09-09
申请人： BASF AKTIENGESELLSCHAFT
发明人： ECK, Bernd , MACHHAMMER, Otto , PROLL, Theo , SCHLIEPHAKE, Volker , THIEL, Joachim , BRÖLLOS, Klaus
IPC分类号： C07C51/43
CPC分类号： C07C51/43 , C07C57/04
摘要： The invention relates to a method for producing acrylic acid and methacrylic acid by producing a gaseous product mixture which essentially has the composition of a reaction mixture of the catalytic gas phase oxidation of C3-/C4- alkanes, -alkenes, -alkanols or -alkanals or precursors thereof to form acrylic acid or methacrylic acid. The product is separated from the gaseous product mixture according to a method comprising the following steps: a) condensing the gaseous product mixture; b) crystallising the acrylic acid or methacrylic acid from the solution obtained in (a); c) separating the resulting crystals from the mother liquor and d) returning at least a part of the mother liquor from stage (c) to stage (a).

3. 发明公开

EP1015410A1 VERFAHREN ZUR HERSTELLUNG VON ACRYLSÄURE UND METHACRYLSÄURE 有权
标题翻译：用于生产丙烯酸和甲基丙烯酸
公开(公告)号：EP1015410A1
公开(公告)日：2000-07-05
申请号：EP98948948.9
申请日：1998-09-09
申请人： BASF AKTIENGESELLSCHAFT
发明人： ECK, Bernd , MACHHAMMER, Otto , PROLL, Theo , SCHLIEPHAKE, Volker , THIEL, Joachim , BRÖLLOS, Klaus
IPC分类号： C07C51/43
CPC分类号： C07C51/43 , C07C57/04
摘要： The invention relates to a method for producing acrylic acid and methacrylic acid by producing a gaseous product mixture which essentially has the composition of a reaction mixture of the catalytic gas phase oxidation of C3-/C4- alkanes, -alkenes, -alkanols or -alkanals or precursors thereof to form acrylic acid or methacrylic acid. The product is separated from the gaseous product mixture according to a method comprising the following steps: a) condensing the gaseous product mixture; b) crystallising the acrylic acid or methacrylic acid from the solution obtained in (a); c) separating the resulting crystals from the mother liquor and d) returning at least a part of the mother liquor from stage (c) to stage (a).

4. 发明授权

EP1015410B2 VERFAHREN ZUR HERSTELLUNG VON ACRYLSÄURE UND METHACRYLSÄURE 有权
标题翻译：用于生产丙烯酸和甲基丙烯酸
公开(公告)号：EP1015410B2
公开(公告)日：2007-09-26
申请号：EP98948948.9
申请日：1998-09-09
申请人： BASF Aktiengesellschaft
发明人： ECK, Bernd , MACHHAMMER, Otto , PROLL, Theo , SCHLIEPHAKE, Volker , THIEL, Joachim , BRÖLLOS, Klaus
IPC分类号： C07C51/43
CPC分类号： C07C51/43 , C07C57/04
摘要： The invention relates to a method for producing acrylic acid and methacrylic acid by producing a gaseous product mixture which essentially has the composition of a reaction mixture of the catalytic gas phase oxidation of C3-/C4- alkanes, -alkenes, -alkanols or -alkanals or precursors thereof to form acrylic acid or methacrylic acid. The product is separated from the gaseous product mixture according to a method comprising the following steps: a) condensing the gaseous product mixture; b) crystallising the acrylic acid or methacrylic acid from the solution obtained in (a); c) separating the resulting crystals from the mother liquor and d) returning at least a part of the mother liquor from stage (c) to stage (a).

5. 发明公开

EP1098867A1 VERFAHREN ZUR HERSTELLUNG VON ACRYLSÄURE 审中-公开
标题翻译： VERFAHREN ZUR HERSTELLUNG VONACRYLSÄURE
公开(公告)号：EP1098867A1
公开(公告)日：2001-05-16
申请号：EP99939391.1
申请日：1999-07-21
申请人： BASF AKTIENGESELLSCHAFT
发明人： ECK, Bernd , HEILEK, Jörg , SCHLIEPHAKE, Volker , PROLL, Theo , BRÖLLOS, Klaus , MACHHAMMER, Otto , THIEL, Joachim
IPC分类号： C07C51/43 , C07C57/07
CPC分类号： C07C51/43 , C07C57/04
摘要： The invention relates to a method for producing acrylic acid by a) producing a gaseous product mixture which essentially has the composition of a reaction mixture of the catalytic gas phase oxidation of C3-alkanes, -alkenes, -alkanols and/or alkanals and/or precursors thereof to acrylic acid. The method is characterised by b) the condensation of the gaseous product mixture; c) the crystallisation of the acrylic acid from the solution obtained in step b) with partial evaporation of the solution in a vacuum; d) the separation of the crystals obtained from the mother liquor; e) the returning of at least part of the mother liquor from step d) to step b) and f) the returning of at least part of the evaporated solution from step c) to step b).
摘要翻译：本发明涉及一种制备丙烯酸的方法，该方法通过a）制备气态产物混合物，该气态产物混合物基本上具有C3-烷烃， - 烯烃， - 链烷醇和/或链烷醛的催化气相氧化反应混合物的组成和/或其前体转化为丙烯酸。该方法的特征在于b）气态产物混合物的冷凝; c）从步骤b）中得到的溶液中结晶出丙烯酸并在真空中部分蒸发该溶液; d）从母液中分离得到的晶体; e）将来自步骤d）的至少部分母液返回至步骤b），以及f）将来自步骤c）的至少部分蒸发溶液返回至步骤b）。

6. 发明公开

EP1015411A1 VERFAHREN ZUR FRAKTIONIERTEN KONDENSATION EINES ACRYLSÄURE ODER METHACRYLSÄURE ENTHALTENDEN HEISSEN GASGEMISCHES MIT EINEM HOHEN ANTEIL NICHT KONDENSIERBARER KOMPONENTEN 有权
标题翻译：分凝丙烯酸或甲基丙烯酸的方法CONTAINING HOT气体混合物与高百分比的非冷凝组分
公开(公告)号：EP1015411A1
公开(公告)日：2000-07-05
申请号：EP98950022.8
申请日：1998-09-10
申请人： BASF AKTIENGESELLSCHAFT
发明人： ECK, Bernd , MACHHAMMER, Otto , PROLL, Theo , SCHLIEPHAKE, Volker , THIEL, Joachim , BRÖLLOS, Klaus
IPC分类号： C07C57/07
CPC分类号： B01D5/003 , C07C51/44 , C07C57/04
摘要： The invention relates to a method for the fractional condensation of a gas mixture which contains at least one other condensable constituent in addition to acrylic acid or methacrylic acid and which also has a high proportion of one or several non-condensable constituents. According to said method, the gas mixture is passed through a column with separation-efficient baffles and the condensable constituents are condensed out by cooling.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式