CL2012003376A1 - Proceso para remover lignina de licor negro acidificando el licor negro, en donde el licor negro es oxidado antes de dicha acidificacion para minimizar elazufre reducido total (trs) en el licor negro, de manera que las hemicelulosas sean oxidadas para formar un agente de acidificacion, el cual complementa a dicho acidificante en la acidificacion; proceso para separar lignina de licor negro. - Google Patents

Proceso para remover lignina de licor negro acidificando el licor negro, en donde el licor negro es oxidado antes de dicha acidificacion para minimizar elazufre reducido total (trs) en el licor negro, de manera que las hemicelulosas sean oxidadas para formar un agente de acidificacion, el cual complementa a dicho acidificante en la acidificacion; proceso para separar lignina de licor negro.

Info

Publication number
CL2012003376A1
CL2012003376A1 CL2012003376A CL2012003376A CL2012003376A1 CL 2012003376 A1 CL2012003376 A1 CL 2012003376A1 CL 2012003376 A CL2012003376 A CL 2012003376A CL 2012003376 A CL2012003376 A CL 2012003376A CL 2012003376 A1 CL2012003376 A1 CL 2012003376A1
Authority
CL
Chile
Prior art keywords
black liquor
acidification
oxidized
lignin
acidifier
Prior art date
Application number
CL2012003376A
Other languages
English (en)
Spanish (es)
Inventor
Lamfeddal Kouisni
Michael Paleologou
Original Assignee
Pfinnovations
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pfinnovations filed Critical Pfinnovations
Publication of CL2012003376A1 publication Critical patent/CL2012003376A1/es

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/0057—Oxidation of liquors, e.g. in order to reduce the losses of sulfur compounds, followed by evaporation or combustion if the liquor in question is a black liquor
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/0007—Recovery of by-products, i.e. compounds other than those necessary for pulping, for multiple uses or not otherwise provided for
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07G—COMPOUNDS OF UNKNOWN CONSTITUTION
    • C07G1/00—Low-molecular-weight derivatives of lignin
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08H—DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
    • C08H8/00—Macromolecular compounds derived from lignocellulosic materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Paper (AREA)
  • Compounds Of Unknown Constitution (AREA)
CL2012003376A 2010-06-03 2012-11-30 Proceso para remover lignina de licor negro acidificando el licor negro, en donde el licor negro es oxidado antes de dicha acidificacion para minimizar elazufre reducido total (trs) en el licor negro, de manera que las hemicelulosas sean oxidadas para formar un agente de acidificacion, el cual complementa a dicho acidificante en la acidificacion; proceso para separar lignina de licor negro. CL2012003376A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US35096910P 2010-06-03 2010-06-03

Publications (1)

Publication Number Publication Date
CL2012003376A1 true CL2012003376A1 (es) 2013-01-25

Family

ID=45063558

Family Applications (1)

Application Number Title Priority Date Filing Date
CL2012003376A CL2012003376A1 (es) 2010-06-03 2012-11-30 Proceso para remover lignina de licor negro acidificando el licor negro, en donde el licor negro es oxidado antes de dicha acidificacion para minimizar elazufre reducido total (trs) en el licor negro, de manera que las hemicelulosas sean oxidadas para formar un agente de acidificacion, el cual complementa a dicho acidificante en la acidificacion; proceso para separar lignina de licor negro.

Country Status (11)

Country Link
US (3) US8771464B2 (https=)
EP (1) EP2576662B1 (https=)
JP (1) JP5898677B2 (https=)
CN (1) CN103154097B (https=)
BR (1) BR112012030594A2 (https=)
CA (1) CA2799798C (https=)
CL (1) CL2012003376A1 (https=)
ES (1) ES2854725T3 (https=)
PL (1) PL2576662T3 (https=)
PT (1) PT2576662T (https=)
WO (1) WO2011150508A1 (https=)

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Also Published As

Publication number Publication date
US9091023B2 (en) 2015-07-28
EP2576662B1 (en) 2020-11-18
BR112012030594A2 (pt) 2016-08-16
US8940130B2 (en) 2015-01-27
WO2011150508A1 (en) 2011-12-08
CN103154097B (zh) 2017-01-18
CN103154097A (zh) 2013-06-12
EP2576662A4 (en) 2014-09-03
JP2013527339A (ja) 2013-06-27
PL2576662T3 (pl) 2021-09-27
EP2576662A1 (en) 2013-04-10
ES2854725T3 (es) 2021-09-22
US20140256920A1 (en) 2014-09-11
JP5898677B2 (ja) 2016-04-06
US20150096697A1 (en) 2015-04-09
US8771464B2 (en) 2014-07-08
US20110297340A1 (en) 2011-12-08
PT2576662T (pt) 2021-02-16
CA2799798A1 (en) 2011-12-08
CA2799798C (en) 2015-01-20

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