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Purification of acrylic acid and methacrylic acid 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • C07C-051/42
출원번호 US-0798138 (1997-02-12)
우선권정보 DE-0006877 (1996-02-23)
발명자 / 주소
  • Machhammer Otto,DEX
  • Dams Albrecht,DEX
  • Eck Bernd,DEX
  • Proll Theo,DEX
출원인 / 주소
  • BASF Aktiengesellschaft, DEX
대리인 / 주소
    Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
인용정보 피인용 횟수 : 32  인용 특허 : 4

초록

In addition, the invention provides a process for preparing acrylic acid or methacrylic acid which includes the abovementioned purification process.

대표청구항 ▼

[ We claim:] [1.] A process for preparing acrylic acid or methacrylic acid, which process comprises the following stages:(I) catalytic gas-phase oxidation of propene or isobutene and/or acrolein or methacrolein to acrylic acid or methacrylic acid, to form a gaseous reaction product containing the ac

이 특허에 인용된 특허 (4)

  1. Saxer Kurt (Buchs CHX) Stadler Ralph (Buchs CHX), Method and apparatus for purifying acrylic acid, and acrylic acid purified by the method.
    상세보기
  2. Bauer ; Jr. William (Huntingdon Valley PA) Mason Robert M. (Roslyn PA) Upmacis Rita K. (North Wales PA), Process for purifying unsaturated carboxylic acids using distillation and melt crystallization.
    상세보기
  3. Baleiko Marc O. (Naperville IL) Rader Edward F. (Wheaton IL), Process for recovery of methacrylic acid.
    상세보기
  4. Willersinn Carl-Heinz (Ludwigshafen DEX), Separation of acrylic acid from the reaction gases from the catalytic oxidation of propylene and/or acrolein.
    상세보기

이 특허를 인용한 특허 (32)

  1. Diehl,Volker; J채ger,Ulrich; Schr철der,J체rgen; Thiel,Joachim, Cleaning of apparatus in which meth(acrylic) acid-containing organic solvents have been treated and/or generated.
    상세보기
  2. Nitz, Joerg-Joachim; Kohlstruk, Stephan; Jansen, Robert; Mueller, Anja; Cassens, Jan; Hengstermann, Axel, Fine purification of isophoronenitrile by melt crystallization.
    상세보기
  3. Mason,Robert Michael; Goodwin,Jeffery Alan; Myers,Ronald Drew; DeCourcy,Michael Stanley, High capacity purification of thermally unstable compounds.
    상세보기
  4. Eck,Bernd; Baumann,Dieter; Heilek,Joerg; Mueller Engel,Klaus Joachim, Method for discontinuous purification of crude acrylic acid by means of crystallization.
    상세보기
  5. Bernd Eck DE; Otto Machhammer DE; Theo Proll DE; Volker Schliephake DE; Joachim Thiel DE; Klaus Brollos DE, Method for producing acrylic acid and methacrylic acid.
    상세보기
  6. Dubois, Jean-Luc, Method for producing bioresourced propionic acid from glycerol.
    상세보기
  7. Dubois, Jean-Luc, Method for producing bioresourced propionic acid from glycerol.
    상세보기
  8. Ueno,Kouji; Hirao,Harunori; Serata,Naoki; Yokogoshiya,Takeshi, Method for production of acrylic acid.
    상세보기
  9. Eck, Bernd; Machhammer, Otto; Proll, Theo; Schliephake, Volker; Muller-Engel, Klaus Joachim, Method for purifying acrylic acid and methacrylic acid.
    상세보기
  10. Fauconet,Michel; Laurent,Denis; Stojanovic,Mireille, Method for purifying acrylic acid obtained by oxidation of propylene and/or acrolein.
    상세보기
  11. Bastiaensen, Erik; Eck, Bernd; Thiel, Joachim, Method for purifying acrylic acid or methacrylic acid by crystallization and distillation.
    상세보기
  12. Nishimura, Takeshi; Matsumoto, Yukihiro, Method of manufacturing (meth) acrylic acid.
    상세보기
  13. Nishimura, Takeshi; Matsumoto, Yukihiro, Method of manufacturing (meth)acrylic acid.
    상세보기
  14. Schliephake,Volker; Hammon,Ulrich; Becher,Rolf Dieter; Muller Engel,Klaus Joachim, Operation of a continuous heterogeneously catalyzed gas phase partial oxidation of at least one organic compound.
    상세보기
  15. Schraut Armin,DEX ; Ulbrich Michael-Dieter,DEX ; Martin Freidrich-Georg,DEX ; Eck Bernd,DEX ; Heilek Jorg,DEX, Preparation of (meth)acrylic acid.
    상세보기
  16. Dieterle, Martin; Diefenbacher, Armin; Schindler, Goetz Peter; Klanner, Catharina; Mueller Engel, Klaus Joachim; Adami, Christoph, Preparation of acrolein or acrylic acid or a mixture thereof by heterogeneously catalyzed partial gas phase oxidation of propylene.
    상세보기
  17. Dieterle, Martin; Mueller-Engel, Klaus Joachim; Hechler, Claus; Hammon, Ulrich; Diefenbacher, Armin, Preparation of acrylic acid by heterogeneously catalyzed partial gas phase oxidation of propylene.
    상세보기
  18. Schäfer, Matthias; Kuszlik, Andrzej; Lippuner, Florian; Engstler, Herbert, Process and apparatus for purification of acrylic acid.
    상세보기
  19. Heilek, Joerg; Mueller Engel, Klaus Joachim; Hammon, Ulrich; Walter, Thomas, Process for controlling a hydraulic wash column.
    상세보기
  20. Korn, Tobias; Blum, Till; Carline, Travis; Fuchs, Christopher; Welch, Darryl; Zurowski, Peter; Schliephake, Volker; Rissel, Steffen; Friese, Thorsten; Jaeger, Ulrich; Haremza, Sylke, Process for production of acrylic acid.
    상세보기
  21. Lipowsky,Gunter; Mueller Engel,Klaus Joachim, Process for rectificatively separating a liquid comprising acrylic acid and/or methacrylic acid.
    상세보기
  22. Heilek, Joerg; Mueller Engel, Klaus Joachim; Adami, Christoph; Dieterle, Martin, Process for removing methacrolein from liquid phase comprising acrylic acid as a main constituent and target product, and methacrolein as a secondary component.
    상세보기
  23. Heilek, Jörg; Müller-Engel, Klaus Joachim; Adami, Christoph; Dieterle, Martin, Process for removing methacrylic acid from liquid phase comprising acrylic acid as a main constituent and target product, and methacrylic acid as a secondary component.
    상세보기
  24. Heilek, Joerg; Mueller Engel, Klaus Joachim; Dieterle, Martin; Diefenbacher, Armin, Process for separating acrylic acid and benzoic acid present in a product gas mixture of a partial heterogeneously catalyzed gas phase oxidation of a Cprecursor compound of acrylic acid.
    상세보기
  25. Dubois, Jean-Luc; Serreau, Stephanie; Desdevises, Fabienne, Process for the preparation of acrylic acid comprising a partial oxidation of propane to propylene.
    상세보기
  26. Guenael Drouglazet FR; Rene Genin FR; Edouard Schwartzman FR, Process for the purification of organic products by fractionated crystallization at a variable circulation rate.
    상세보기
  27. De Decker, Emile; Bastiaensen, Erik; Baumann, Dieter; Eck, Bernd; Heilek, J?rg, Purification method for (meth)acrylic acid.
    상세보기
  28. Balduf,Torsten; Nordhoff,Stefan; Yu Chiang,Dennis Thong; Kobus,Axel; Roos,Martin, Purification of a monomer by extraction with a phase former and crystallization.
    상세보기
  29. Yoo, Sul Hee; Baek, Se Won; Song, Jong Hun; Min, Yoon Jae, Recovery method and recovery device for (meth) acrylic acid.
    상세보기
  30. Hoefer, Frank; Schliephake, Volker; Mueller Engel, Klaus Joachim, Rectificative separation of an acrylic acid-containing liquid.
    상세보기
  31. Diehl, Volker; Jaeger, Ulrich; Hammon, Ulrich; Schroeder, Juergen; Rissel, Steffen, Thermal separating process.
    상세보기
  32. Diehl,Volker; Jaeger,Ulrich; Hammon,Ulrich; Schroeder,Juergen; Rissel,Steffen, Thermal separating process.
    상세보기

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