(19)
(11) EP 1 470 077 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
10.10.2007 Bulletin 2007/41

(45) Mention of the grant of the patent:
21.02.2007 Bulletin 2007/08

(21) Application number: 02712238.1

(22) Date of filing: 31.01.2002
(51) International Patent Classification (IPC): 
C01D 3/06(2006.01)
C01F 11/46(2006.01)
 C01D 3/16(2006.01)
(86) International application number:
PCT/IN2002/000018
(87) International publication number:
WO 2003/064323 (07.08.2003 Gazette 2003/32)

(54)

A PROCESS FOR RECOVERY OF LOW SODIUM SALT FROM BITTERN

VERFAHREN ZUR GEWINNUNG VON NATRIUMARMEM SALZ AUS BITTERWÄSSERN

PROCEDE DE RECUPERATION DE SEL PAUVRE EN SODIUM, CONTENU DANS LES EAUX SALEES AMERES

(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

(43) Date of publication of application:
27.10.2004 Bulletin 2004/44

(73) Proprietor: COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH
New Delhi 110 001 (IN)

(72) Inventors:
  • VOHRA, Rajinder Nath, Central Salt and Marine Chemicals Research Institute
    Bhavnagar, 364 002 Gujarat (IN)
  • GHOSH, Pushpito Kumar, Central Salt and Marine Chemicals Research Institute
    Bhavnagar, 364 002 Gujarat (IN)
  • GANDHI, Maheshkumar Ramniklal, Central Salt and Marine Chemicals Research Institute
    Bhavnagar, 364 002 Gujarat (IN)
  • JOSHI, Himanshu Labhshanker, Central Salt and Marine Chemicals Research Institute
    Bhavnagar, 364 002 Gujarat (IN)
  • DERIYA, Hasina Hajibhai, Central Salt and Marine Chemicals Research Institute
    Bhavnagar, 364 002 Gujarat (IN)
  • DAVE, Rohit Harshadray, Central Salt and Marine Chemicals Research Institute
    Bhavnagar, 364 002 Gujarat (IN)
  • HALDER, Koushik, Central Salt and Marine Chemicals Research Institute
    Bhavnagar, 364 002 Gujarat (IN)
  • MAJEETHIA, Kishorkumar Manmohandas, Central Salt and Marine Chemicals Research Institute
    Bhavnagar, 364 002 Gujarat (IN)
  • DAGA, Sohan Lal, Central Salt and Marine Chemicals Research Institute
    Bhavnagar, 364 002 Gujarat (IN)

(74) Representative: Gaunt, Robert John et al
Stevens, Hewlett & Perkins Halton House 20/23 Holborn
London EC1N 2JD
London EC1N 2JD (GB)


(56) References cited: : 
GB-A- 1 142 901
US-A- 3 099 528
 GB-A- 1 500 288
US-A- 3 536 444
   
  • PATENT ABSTRACTS OF JAPAN vol. 014, no. 171 (C-0706), 3 April 1990 (1990-04-03) & JP 02 022122 A (NAIKAI ENGIYOU KK;OTHERS: 01), 25 January 1990 (1990-01-25)
   
Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).