Title of Invention

A PROCESS OF SEPARATING SUSPENDED SOLIDS FROM A FERMENTATION LIQUOR

Abstract A process of separating suspended solids from a fermentation liquor by subjecting the liquor to a solids-liquid separation stage, wherein the fermentation liquor is produced in a fermentation process for the production of a fermentation product, which liquor comprises water, lignin and BOD, wherein the solids liquid separation stage is assisted by a treatment system, characterised in that the treatment system comprises either, (i) a cationic polymer having an intrinsic viscosity (IV) of at least 4 dl/g at a dose of above 2 kg/tonne based on dry weight of suspension, or (ii) a cationic polymer having an intrinsic viscosity (IV) of at least 4 dl/g and, (iii) an anionic polymer, and/or (iv) a cationic polymer of intrinsic viscosity of below 4 dl/g and a cationic charge density of at least 3 meq/g and/or (v) inorganic coagulants and/or (vi) charged microparticulate material.
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Documents:

137-chenp-2005 amended pages of specification 01-06-2011.pdf

137-chenp-2005 amended claims 01-06-2011.pdf

137-chenp-2005 form-3 01-06-2011.pdf

137-chenp-2005 amended pages of specification 11-05-2011.pdf

137-CHENP-2005 AMENDED CLAIMS 21-10-2011.pdf

137-chenp-2005 amended claims 11-05-2011.pdf

137-chenp-2005 amended pages of specification 08-02-2011.pdf

137-CHENP-2005 CORRESPONDENCE OTHERS 01-06-2011.pdf

137-chenp-2005 correspondence others 08-02-2011.pdf

137-CHENP-2005 CORRESPONDENCE OTHERS 21-10-2011.pdf

137-chenp-2005 form-1 08-02-2011.pdf

137-CHENP-2005 AMENDED CLAIMS 22-10-2010.pdf

137-CHENP-2005 AMENDED PAGES OF SPECIFICATION 22-10-2010.pdf

137-CHENP-2005 CORRESPONDENCE OTHRES 05-07-2010.pdf

137-CHENP-2005 CORRESPONDENCE OTHERS 11-10-2011.pdf

137-chenp-2005 correspondence others 11-05-2011.pdf

137-CHENP-2005 CORRESPONDENCE OTHERS.pdf

137-CHENP-2005 CORRESPONDENCE PO.pdf

137-CHENP-2005 DESCRIPTION (COMPLETE) GRANTED.pdf

137-CHENP-2005 EXAMINATION REPORT REPLY RECIEVED 22-10-2010.pdf

137-CHENP-2005 FORM-1.pdf

137-CHENP-2005 FORM-18.pdf

137-CHENP-2005 FORM-3 22-10-2010.pdf

137-CHENP-2005 FORM-3.pdf

137-CHENP-2005 FORM-5.pdf

137-CHENP-2005 OTHER PATENT DOCUMENT 22-10-2010.pdf

137-CHENP-2005 PCT.pdf

137-CHENP-2005 POWER OF ATTORNEY 22-10-2010.pdf


Patent Number 251182
Indian Patent Application Number 137/CHENP/2005
PG Journal Number 09/2012
Publication Date 02-Mar-2012
Grant Date 29-Feb-2012
Date of Filing 07-Feb-2005
Name of Patentee CIBA SPECIALTY CHEMICALS WATER TREATMENTS LIMITED
Applicant Address Cleckheaton Road, Low Moor, Bradford, West Yorkshire BD12 0JZ
Inventors:
# Inventor's Name Inventor's Address
1 HUGHES, Jonathan 6 Lightridge Road, Fixby, Huddersfield, West Yorkshire HD2 2HE
2 SYMES, Kenneth, Charles 4 Silk Mill Drive, East Moreton, Keighley, West Yorkshire BD20 5UU
PCT International Classification Number C02F 1/52
PCT International Application Number PCT/EP03/08427
PCT International Filing date 2003-07-30
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 0218021.4 2002-08-05 U.K.