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. 发明申请

US20070117998A1 Process for preparing acrolein or acrylic acid or a mixture thereof from propane 有权
标题翻译：从丙烷制备丙烯醛或丙烯酸或其混合物的方法
公开(公告)号：US20070117998A1
公开(公告)日：2007-05-24
申请号：US11505800
申请日：2006-08-18
申请人： Otto Machhammer , Klaus Muller-Engel , Martin Dieterle
发明人： Otto Machhammer , Klaus Muller-Engel , Martin Dieterle
IPC分类号： C07C51/16
CPC分类号： C07C45/35 , C07C45/33 , C07C51/215 , C07C51/252 , C07C47/22 , C07C57/04
摘要： A process for preparing acrolein, or acrylic acid or a mixture thereof as a target product from propane, in which propane is partially dehydrogenated under heterogeneous catalysis in a reaction zone A, molecular hydrogen thus formed is incinerated partly to water and the product gas A thus formed in reaction zone A is used without secondary component removal to charge a reaction zone B in which propylene present in product gas A is partially oxidized to the target product. From the product gas B formed in reaction zone B, the target product is removed and the residual gas I remaining after an aftertreatment comprising a CO2 scrubbing and a partial discharge thereof is recycled into reaction zone A.
摘要翻译：制备丙烯醛或丙烯酸或其混合物作为丙烷的目标产物的方法，其中丙烷在反应区A中在非均相催化下部分脱氢，因此形成的分子氢部分地被焚烧成水，产物气A因此在反应区A中形成的反应区A被使用，而不需要除去二次分量，从而向产物气体A中存在的丙烯部分氧化成目标产物的反应区B进行充电。从在反应区B中形成的产物气体B中，除去目标产物，并且在包括CO 2洗涤和部分排放的后处理之后残留的残余气体I再循环到反应区A中。

2. 发明申请

US20050272952A1 Preparation of acrylic acid by heterogeneously catalyzed gas phase partial oxidation of at least one C3 hydrocarbon precursor compound 审中-公开
标题翻译：通过至少一种C3烃前体化合物的非均相催化气相部分氧化制备丙烯酸
公开(公告)号：US20050272952A1
公开(公告)日：2005-12-08
申请号：US11107919
申请日：2005-04-18
申请人： Ulrich Cremer , Martin Dieterle , Sabine Jourdan , Jochen Petzoldt , Klaus Muller-Engel
发明人： Ulrich Cremer , Martin Dieterle , Sabine Jourdan , Jochen Petzoldt , Klaus Muller-Engel
IPC分类号： C07C51/16 , C07C51/25 , C07C57/05
CPC分类号： C07C51/252 , C07C57/04
摘要： A process for preparing acrylic acid by heterogeneously catalyzed partial oxidation of at least one C3 hydrocarbon precursor compound, in which the secondary component formation is ≦1.5 mol %.
摘要翻译：通过至少一种C 3 O 3烃前体化合物的非均相催化部分氧化制备丙烯酸的方法，其中第二组分形成<= 1.5mol％。

3. 发明申请

US20050115590A1 Method for cleaning plate columns used for rectifying liquids containing (meth)acrylic acid and/or the esters thereof 有权
标题翻译：用于清洁含有（甲基）丙烯酸和/或其酯的液体的精馏塔的柱的方法
公开(公告)号：US20050115590A1
公开(公告)日：2005-06-02
申请号：US10505163
申请日：2003-03-04
申请人： Juergen Schroeder , Klaus Muller-Engel , Volker Schliephake , Ulrich Hammon , Volker Diehl , Ulrich Jager
发明人： Juergen Schroeder , Klaus Muller-Engel , Volker Schliephake , Ulrich Hammon , Volker Diehl , Ulrich Jager
IPC分类号： B08B9/08 , C07C51/44 , C07C57/07 , C07C67/54 , C07C69/54 , B08B3/00
CPC分类号： B08B9/08 , C07C51/44 , C07C57/04
摘要： In process for cleaning tray columns which are used for the purposes of rectifiying liquids comprising (meth)acrylic compounds, a basic liquid is conveyed downward through the tray column and a gas is passed through the column in countercurrent to the basic liquid at an average gas phase differential pressure over all trays of at least 0.5 mbar/tray.
摘要翻译：在清洁用于整流包含（甲基）丙烯酸类化合物的液体的托盘列的过程中，碱性液体向下传送通过塔盘塔，气体以平均气体与碱性液体逆流通过塔至少0.5 mbar /托盘的所有托盘上的相位差压。

4. 发明申请

US20050077240A1 Rectificative separation of an acrylic acid-containing liquid 有权
标题翻译：精馏分离含丙烯酸的液体
公开(公告)号：US20050077240A1
公开(公告)日：2005-04-14
申请号：US10939498
申请日：2004-09-14
申请人： Frank Hofer , Volker Schliephake , Klaus Muller-Engel
发明人： Frank Hofer , Volker Schliephake , Klaus Muller-Engel
IPC分类号： C07C51/44 , B01D11/00
CPC分类号： C07C51/44 , C07C57/04
摘要： A process for rectificatively separating an acrylic acid-containing liquid, by withdrawing an acrylic acid-rich stream from the rectification column above the feed point and polymerization-inhibiting the upper section of the rectification column by means of diacrylic acid.
摘要翻译：通过从精馏塔上方引入富含丙烯酸的物流，并通过二丙烯酸聚合 - 抑制精馏塔的上部，来对含丙烯酸的液体进行精馏分离的方法。

5. 发明申请

US20050006299A1 Device for performing the purifying separation of crystals out of their suspension in a contaminated crystal melt 有权
标题翻译：用于在受污染的晶体熔体中从其悬浮液中进行晶体的纯化分离的装置
公开(公告)号：US20050006299A1
公开(公告)日：2005-01-13
申请号：US10494046
申请日：2002-11-08
申请人： Jorg Heilek , Dieter Baumann , Bernd Eck , Ulrich Hammon , Klaus Muller-Engel
发明人： Jorg Heilek , Dieter Baumann , Bernd Eck , Ulrich Hammon , Klaus Muller-Engel
IPC分类号： C07B61/00 , B01D9/00 , C07C51/43 , C07C57/07 , B01D29/48
CPC分类号： B01D9/0013 , B01D9/0036 , B01D9/004 , B01D9/0045
摘要： An apparatus for separating crystals from their suspension in contaminated crystal melt with purification, in which a hydraulic wash column has distributor aids in a distributor space.
摘要翻译：一种用于在污染的晶体熔体中从其悬浮液中分离晶体的装置，其中液压清洗柱在分配器空间中具有分配器辅助。

6. 发明申请

US20070142223A1 HETEROGENEOUS CATALYST FOR THE PREPARATION OF ACROLEIN BY PARTIAL GAS PHASE OXIDATION OF PROPENE 有权
标题翻译：用于通过部分气相氧化丙烯来制备丙烯酸的异构催化剂
公开(公告)号：US20070142223A1
公开(公告)日：2007-06-21
申请号：US11627573
申请日：2007-01-26
申请人： Jochen Petzoldt , Klaus Muller-Engel
发明人： Jochen Petzoldt , Klaus Muller-Engel
IPC分类号： B01J21/00
CPC分类号： B01J35/026 , B01J23/8885 , B01J35/0006 , C07C45/35 , C07C47/22
摘要： An annular unsupported catalyst for the heterogeneously catalyzed partial gas phase oxidation of propene to acrolein at a propene hourly space velocity on the fixed catalyst bed of ≧120 1 (STP)/l·h and a total CO2 and saturated hydrocarbon content of the starting reaction gas mixture of below 15 mol %, the catalysts of the fixed catalyst bed are the annular unsupported catalysts whose active composition is a multimetal oxide in which the molar Co/Fe ratio=from 2 to 4 and the molar Co/Mo ratio=from 0.3 to 0.7.
摘要翻译：一种环状的无载体催化剂，用于在固定催化剂床上，丙烯到异丙烯醛的非均相催化的部分气相氧化丙烯醛，固定催化剂床上> = 120 1（STP）/ 1h，总共CO 2 2和起始反应气体混合物的饱和烃含量低于15mol％，固定催化剂床的催化剂是环状无载体催化剂，其活性组成是多金属氧化物，其中Co / Fe摩尔比为2至4，摩尔数 Co / Mo比= 0.3〜0.7。

7. 发明申请

US20060135813A1 Method for the heterogeneously catalyzed partial gas phase oxidation of propene into acrylic acid 审中-公开
标题翻译：丙烯非均相催化部分气相氧化丙烯的方法
公开(公告)号：US20060135813A1
公开(公告)日：2006-06-22
申请号：US10543060
申请日：2004-03-20
申请人： Martin Dieterle , Jochen Petzoldt , Klaus Muller-Engel , Hans Martan
发明人： Martin Dieterle , Jochen Petzoldt , Klaus Muller-Engel , Hans Martan
IPC分类号： C07C51/16
CPC分类号： C07C51/252 , C07C57/04
摘要： In a process for partially oxidizing propene to acrylic acid in the gas phase under heterogeneous catalysis, a starting reaction gas mixture comprising propene and oxygen and having a specific composition is oxidized in a first reaction stage over a first fixed catalyst bed having a volume-specific activity which is constant or increases in the flow direction and the acrolein-containing product gas mixture of the first reaction stage is subsequently oxidized in a second reaction stage over a second fixed catalyst bed having a volume-specific activity increasing in the flow direction, and the shaped catalyst bodies of both fixed catalyst beds are annular and each have a specific multimetal oxide composition.
摘要翻译：在非均相催化下在气相中将丙烯部分氧化为丙烯酸的方法中，包含丙烯和氧并具有特定组成的起始反应气体混合物在第一反应阶段在具有体积特异性的第一固定催化剂床上被氧化随后在第二反应阶段，在流动方向上具有体积比活度增加的第二固定催化剂床上氧化第一反应段的流动方向恒定或增加的含丙烯醛的产物气体混合物的活性，以及两个固定催化剂床的成形催化剂体是环状的，并且各自具有特定的多金属氧化物组合物。

8. 发明申请

US20050209411A1 Method for producing low-odor hydrogel-forming polymers 有权
标题翻译：生产低气味水凝胶形成聚合物的方法
公开(公告)号：US20050209411A1
公开(公告)日：2005-09-22
申请号：US10511603
申请日：2003-05-12
申请人： Gerhard Nestler , Klaus Muller-Engel , Stefan Wickel
发明人： Gerhard Nestler , Klaus Muller-Engel , Stefan Wickel
IPC分类号： A61F13/53 , A61F13/49 , A61L15/60 , C08F2/00 , C08F8/00 , C08F20/06 , C08F220/06 , C08F20/02
CPC分类号： C08F20/06
摘要： This invention relates to a process for preparing a low-odor hydrogel-forming acrylic acid polymer, which comprises the steps of: a) preparing a polymeric hydrogel by free-radically polymerizing a monomer composition comprising at least 50% by weight of acrylic acid in an aqueous polymerization medium and converting said hydrogel into a particulate hydrogel or into hydrogel-forming powder; and optionally b) treating said particulate hydrogel or said hydrogel-forming powder with a crosslinking substance which, actually or latently, contain at least two functional groups capable of reacting with the carboxyl groups on the addition polymer; characterized by the acrylic acid used in step a) containing less than 400 ppm of acetic acid and propionic acid. It further relates to the hydrogel-forming addition polymers obtainable by the process and to their use.
摘要翻译：本发明涉及一种制备低气味形成水凝胶的丙烯酸聚合物的方法，其包括以下步骤：a）通过将包含至少50重量％丙烯酸的单体组合物自由基聚合制备聚合物水凝胶水性聚合介质，并将所述水凝胶转化为颗粒状水凝胶或形成水凝胶形成粉末; 并且任选地b）用实际上或潜在地含有至少两个能够与加成聚合物上的羧基反应的官能团的交联物质处理所述颗粒状水凝胶或所述水凝胶形成粉末; 其特征在于在步骤a）中使用的丙烯酸含有少于400ppm的乙酸和丙酸。它还涉及可通过该方法获得的水凝胶形成加成聚合物及其用途。

9. 发明申请

US20050107641A1 Preparation of acrolein by heterogeneously catalyzed partial gas phase oxidation of propene 有权
标题翻译：通过丙烯的非均相催化部分气相氧化制备丙烯醛
公开(公告)号：US20050107641A1
公开(公告)日：2005-05-19
申请号：US10974831
申请日：2004-10-28
申请人： Jochen Petzoldt , Klaus Muller-Engel
发明人： Jochen Petzoldt , Klaus Muller-Engel
IPC分类号： B01J23/888 , B01J35/00 , B01J35/02 , C07C45/35
CPC分类号： B01J35/026 , B01J23/8885 , B01J35/0006 , C07C45/35 , C07C47/22
摘要： In a process for the heterogeneously catalyzed partial gas phase oxidation of propene to acrolein at a propene hourly space velocity on the fixed catalyst bed of ≧120 l (STP)/l·h and a total CO2 and saturated hydrocarbon content of the starting reaction gas mixture of below 15 mol %, the catalysts of the fixed catalyst bed are annular un-supported catalysts whose active composition is a multimetal oxide in which the molar Co/Fe ratio=from 2 to 4 and the molar Co/Mo ratio=from 0.3 to 0.7.
摘要翻译：在异丙烯催化的部分气相中，丙烯醛以固定催化剂床上丙烯时间空速在≥120升（STP）/ 1h和总CO 2 N 2和饱和起始反应气体混合物的烃含量低于15mol％，固定催化剂床的催化剂是环状未负载催化剂，其活性组成是多金属氧化物，其中Co / Fe摩尔比为2至4，摩尔数 Co / Mo比= 0.3〜0.7。

10. 发明申请

US20050101803A1 Long-term operation of a heterogeneously catalyzed gas phase partial oxidation of propene to acrylic acid 有权
标题翻译：长期运行丙烯非均相催化气相部分氧化丙烯酸
公开(公告)号：US20050101803A1
公开(公告)日：2005-05-12
申请号：US10961110
申请日：2004-10-12
申请人： Martin Dieterle , Jochen Petzoldt , Klaus Muller-Engel
发明人： Martin Dieterle , Jochen Petzoldt , Klaus Muller-Engel
IPC分类号： C07C51/16 , C07C51/25
CPC分类号： C07C51/252 , C07C57/04
摘要： A process for the long-term operation of a two-stage heterogeneously catalyzed gas phase partial oxidation of propene to acrylic acid, in which the temperature of the fixed catalyst beds is increased over the time and the gas phase partial oxidation is interrupted from time to time and an oxygen-containing gas mixture is conducted through the fixed catalyst beds at elevated temperature of the fixed catalyst beds.
摘要翻译：长期运行丙烯到丙烯酸的两阶段非均相催化气相部分氧化丙烯酸的方法，其中固定催化剂床的温度随时间增加，气相部分氧化从时间到时间和含氧气体混合物通过固定催化剂床在固定催化剂床的升高温度下进行。

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