AZEOTROPIC DISTILLATION PROCESS

Details for Australian Patent Application No. 2002233645 (hide)

Owner MITSUBISHI CHEMICAL CORPORATION

Inventors NUMATA, Motoki; ISOGAI, Takayuki

Pub. Number AU-A-2002233645

PCT Pub. Number WO2002/068375

Priority 2001-51553 27.02.01 JP

Filing date 18 February 2002

Wipo publication date 12 September 2002

International Classifications

C07C 051/46 Preparation of carboxylic acids or their salts, halides, or anhydrides

C07C 053/08 Saturated compounds having only one carboxyl group bound to an acyclic carbon atom or hydrogen

C07C 067/54 Preparation of carboxylic acid esters

C07C 069/14 Esters of carboxylic acids

C07B 063/00 Purification

B01D 003/36 Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping

C07C 051/265 Preparation of carboxylic acids or their salts, halides, or anhydrides

C07C 063/26 Compounds having carboxyl groups bound to carbon atoms of six-membered aromatic rings

Event Publications

6 March 2003 Application Open to Public Inspection

  Published as AU-A-2002233645

12 February 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(f)/See Reg. 8.3(3). Examination has not yet been requested or directed for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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