(19)
(11) EP 1 232 135 A1

(12)

(43) Date of publication:
21.08.2002 Bulletin 2002/34

(21) Application number: 99967032.6

(22) Date of filing: 26.11.1999
(51) International Patent Classification (IPC)7C07C 51/265, C07C 63/15
(86) International application number:
PCT/IN9900/069
(87) International publication number:
WO 0103/8279 (31.05.2001 Gazette 2001/22)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

(71) Applicant: Chemintel (India) Private Limited
Surat,Gujarat (IN)

(72) Inventors:
  • KULSRESTHA, Girendra Narain
    Dehradun 248001,Uttar Pradesh (IN)
  • SAXENA, Mahendra Pratap,Indian Inst. Petroleum
    Dehradun 248005,Uttar Pradesh (IN)
  • GUPTA, Ashok, Kumar,Indian Inst. Petroleum
    Dehradun 248005,Uttar Pradesh (IN)
  • SHARMA, Satish Kumar,Indian Inst. Petroleum
    Dehradun 248005,Uttar Pradesh (IN)
  • BANGWAL, Dinesh Prasad,Indian Inst. Petroleum
    Dehradun 248005,Uttar Pradesh (IN)
  • GOYAL, Hari Bhagwan,Indian Inst. Petroleum
    Dehradun 248005,Uttar Pradesh (IN)
  • PRASAD, Rameshwar,Indian Inst. Petroleum
    Dehradun 248005,Uttar Pradesh (IN)
  • MALL, Sanjib,Futurica Petrochemicals (Pvt.) Ltd
    Shivajinagar 411 005 Pune (IN)
  • PATEL, Prakash D.,Adarsh Chem. & Fertilizers Ltd
    Surat 394 210,Gujarat (IN)

(74) Representative: Henkel, Feiler, Hänzel 
Möhlstrasse 37
81675 München
81675 München (DE)

   


(54) PROCESS FOR PREPARATION OF BENZENE DICARBOXYLIC ACIDS