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Class Information
Number: 562/532
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Carboxylic acids and salts thereof > Acyclic > Formation of carboxyl group by oxidation > Of aldehyde > Producing unsaturated acid
Description: Processes wherein the acid produced is an unsaturated acyclic carboxylic acid.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7612230 |
Method for producing acrylic acid |
Nov. 3, 2009 |
| 7608734 |
Method of producing unsaturated acid in fixed-bed catalytic partial oxidation reactor with high efficiency |
Oct. 27, 2009 |
| 7588739 |
Fixed bed multitube reactor |
Sep. 15, 2009 |
| 7566804 |
Process for preparing acrylic acid |
Jul. 28, 2009 |
| 7563927 |
Process for producing (meth)acrylic acid or (meth)acrolein |
Jul. 21, 2009 |
| 7544836 |
Process for producing (meth)acrolein or (meth)acrylic acid |
Jun. 9, 2009 |
| 7541490 |
Method for production of acrylic acid and apparatus for production of acrylic acid |
Jun. 2, 2009 |
| 7528281 |
Method for vapor phase catalytic oxidation |
May. 5, 2009 |
| 7524987 |
Process for preparing acrolein or acrylic acid or a mixture thereof from propane |
Apr. 28, 2009 |
| 7518015 |
Process for heterogeneously catalyzed gas phase partial oxidation of at least one organic starting compound |
Apr. 14, 2009 |
| 7511172 |
Method for production of (meth)acrylic acid |
Mar. 31, 2009 |
| 7488845 |
Method for the safe operation of a gas-phase partial oxidation |
Feb. 10, 2009 |
| 7429678 |
Composite-oxide catalyst and process for production of acrylic acid using said catalyst |
Sep. 30, 2008 |
| 7414149 |
Non-routine reactor shutdown method |
Aug. 19, 2008 |
| 7332139 |
Process and device for carrying out reactions in reactor with slot-shaped reaction spaces |
Feb. 19, 2008 |
| 7332624 |
Method for production of acrylic acid |
Feb. 19, 2008 |
| 7326810 |
Method for starting up reactor |
Feb. 5, 2008 |
| 7326811 |
Method for production of (meth)acrylic acid by use of a shell-and-tube heat exchanger |
Feb. 5, 2008 |
| 7321060 |
Method for production of acrylic acid |
Jan. 22, 2008 |
| 7304179 |
Method for producing methacrylic acid |
Dec. 4, 2007 |
| 7300555 |
Method for the rectifying separation of liquids containing (meth)acrylic monomers in a rectification column |
Nov. 27, 2007 |
| 7297814 |
Multitube reactor, vapor phase catalytic oxidation method using the multitube reactor, and start up method applied to the multitube reactor |
Nov. 20, 2007 |
| 7294734 |
Process for converting a hydrocarbon to an oxygenate or a nitrile |
Nov. 13, 2007 |
| 7258766 |
Method for collecting acrylic acid |
Aug. 21, 2007 |
| 7253309 |
Method for production of methacrylic acid |
Aug. 7, 2007 |
| 7253308 |
Method for catalytic phase oxidation to (meth) acrolein and/or (meth) acrylic acid |
Aug. 7, 2007 |
| 7238827 |
Preparation of at least one partial oxidation and/or ammoxidation product of propylene |
Jul. 3, 2007 |
| 7214821 |
Preparation of (meth)acrolein and/or (meth)acrylic acid by heterogeneously catalyzed partial oxidation of C.sub.3 and/or C.sub.4 precursor compounds |
May. 8, 2007 |
| 7211692 |
Long-term operation of a heterogeneously catalyzed gas phase partial oxidation of propene to acrylic acid |
May. 1, 2007 |
| 7196217 |
Operation of a continuous heterogeneously catalyzed gas phase partial oxidation of at least one organic compound |
Mar. 27, 2007 |
| 7183428 |
Method for production of acrylic acid |
Feb. 27, 2007 |
| 7179875 |
Method for producing water-absorbent resins |
Feb. 20, 2007 |
| 7176335 |
Method for producing methacrolein from isobutane |
Feb. 13, 2007 |
| 7147048 |
Shell-and-tube type heat exchanger and method for production of (meth) acrylic acid by use of the exchange |
Dec. 12, 2006 |
| 7144557 |
Multitube reactor, vapor phase catalytic oxidation method using the multitube reactor, and start up method applied to the multitube reactor |
Dec. 5, 2006 |
| 7119227 |
Process for catalytic vapor phase oxidation |
Oct. 10, 2006 |
| 7109374 |
Method for the continuous extraction of (meth)acrylic acid |
Sep. 19, 2006 |
| 7074955 |
Safe operation of a continuous heterogeneously catalyzed gas-phase partial oxidation of at least one organic compound |
Jul. 11, 2006 |
| 7045482 |
Method for preparing a heteropolyacid catalyst from basic solvent treatments and method for preparing methacrylic acid using thererof |
May. 16, 2006 |
| 7045657 |
Catalytic gas phase oxidation process |
May. 16, 2006 |
| 7038080 |
Heterogeneously catalyzed gas-phase partial oxidation of acrolein to acrylic acid |
May. 2, 2006 |
| 7030269 |
Catalyst and process for production of acrylic acid |
Apr. 18, 2006 |
| 7022877 |
Long-term operation of a heterogeneously catalyzed gas phase partial oxidation of acrolein to acrylic acid |
Apr. 4, 2006 |
| 7012156 |
Preparation method of methacrylic acid |
Mar. 14, 2006 |
| 7005544 |
Method for preventing polymerization in an acrylic acid manufacturing process |
Feb. 28, 2006 |
| 6982347 |
Heterogeneously catalyzed partial gas phase oxidation of acrolein to acrylic acid |
Jan. 3, 2006 |
| 6969774 |
Method for producing methacrylic acid |
Nov. 29, 2005 |
| 6949675 |
Process for producing acrylic acid |
Sep. 27, 2005 |
| 6939991 |
Preparation of acrylic acid |
Sep. 6, 2005 |
| 6930201 |
Process for producing methacrylic acid |
Aug. 16, 2005 |
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