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BR9808918A - Processo para preparação de soluções alcalinas contendo polìmeros aromáticos - Google Patents

Processo para preparação de soluções alcalinas contendo polìmeros aromáticos

Info

Publication number
BR9808918A
BR9808918A BR9808918-8A BR9808918A BR9808918A BR 9808918 A BR9808918 A BR 9808918A BR 9808918 A BR9808918 A BR 9808918A BR 9808918 A BR9808918 A BR 9808918A
Authority
BR
Brazil
Prior art keywords
aromatic polymers
preparation
solutions containing
containing aromatic
precipitated
Prior art date
Application number
BR9808918-8A
Other languages
English (en)
Inventor
Alfred Abacherli
Frank Doppenberg
Original Assignee
Granit Sa
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 Granit Sa filed Critical Granit Sa
Publication of BR9808918A publication Critical patent/BR9808918A/pt

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08HDERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
    • C08H6/00Macromolecular compounds derived from lignin, e.g. tannins, humic acids
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C11/00Regeneration of pulp liquors or effluent waste waters
    • D21C11/0007Recovery of by-products, i.e. compounds other than those necessary for pulping, for multiple uses or not otherwise provided for

Landscapes

  • Chemical & Material Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Paper (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)

Abstract

Patente de Invenção: <B>"PROCESSO PARA PREPARAçãO DE SOLUçõES ALCALINAS CONTENDO POLìMEROS AROMáTICOS"<D>. A invenção refere-se a um processo que possibilita a separação de polímeros aromáticos precipitáveis por acidificação, como podem ser encontrados em águas residuais da preparação de celulose, a partir de uma solução alcalina, de maneira confiável, e em forma pura. Para obtenção de uma boa separabilidade, particularmente por filtração, é aconselhado precipitar-se os polímeros por diminuição do valor do pH a uma temperatura relativamente baixa, tipicamente entre 15 até 60°C, e aquecer em seguida a dispersão, até que ela se converta na forma filtrável, tipicamente entre 50 e 95°C. O produto separado, por exemplo, por filtração pode ser lavado e seco a temperatura elevada particularmente até 110°C, sem ficar preto.
BR9808918-8A 1997-03-20 1998-03-20 Processo para preparação de soluções alcalinas contendo polìmeros aromáticos BR9808918A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH67297 1997-03-20
PCT/IB1998/000512 WO1998042912A1 (de) 1997-03-20 1998-03-20 Verfahren zur aufbereitung von aromatische polymere enthaltenden alkalischen lösungen

Publications (1)

Publication Number Publication Date
BR9808918A true BR9808918A (pt) 2000-08-01

Family

ID=4192475

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9808918-8A BR9808918A (pt) 1997-03-20 1998-03-20 Processo para preparação de soluções alcalinas contendo polìmeros aromáticos

Country Status (13)

Country Link
US (1) US6239198B1 (pt)
EP (1) EP0970275B1 (pt)
JP (1) JP2001503113A (pt)
CN (1) CN1109157C (pt)
AT (1) ATE234958T1 (pt)
AU (1) AU725514B2 (pt)
BR (1) BR9808918A (pt)
CA (1) CA2283698C (pt)
DE (1) DE59807559D1 (pt)
IL (1) IL131629A0 (pt)
NO (1) NO323180B1 (pt)
TR (1) TR199902246T2 (pt)
WO (1) WO1998042912A1 (pt)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1242936C (zh) * 2000-03-16 2006-02-22 Tfm汉德尔斯股份公司 用于减少工业装置中的残渣和沉积物形成的无硫木素及其衍生物
SE0402437D0 (sv) * 2004-10-07 2004-10-07 Stfi Packforsk Ab Method for separating lignin from a lignin containing liquid/slurry
EP1690980A1 (en) * 2005-02-11 2006-08-16 Agrotechnology and Food Innovations B.V. Process and apparatus for conversion of biomass
EP2591166A4 (en) * 2010-07-07 2014-10-08 Stora Enso Oyj PROCESS FOR PRODUCING LIGNIN PRECIPITED FROM BLACK LIQUEUR AND PRECIPITATED LIGNIN SO PRODUCED
AT510346A1 (de) 2010-09-02 2012-03-15 Annikki Gmbh Ligningewinnung
AT510812A1 (de) 2010-10-29 2012-06-15 Annikki Gmbh Verfahren zur gewinnung von lignin
FI126512B (fi) 2011-03-09 2017-01-13 Nanorefix Oy Menetelmä ligniinin erottamiseksi kasvimateriaalista ja saatava tuote
CA2840337C (en) * 2011-06-28 2018-01-02 Metso Power Ab Method for lignin separation from black liquor comprising removal of sulphur compounds from formed water effluent
WO2013113462A1 (en) 2012-02-02 2013-08-08 Annikki Gmbh Process for the production of polyols
KR101201759B1 (ko) * 2012-05-08 2012-11-15 주식회사 엔바이오니아 고농도 및 저농도의 2층 구조를 갖는 필터 여과재
DE102016219719B3 (de) * 2016-10-11 2018-01-25 Clariant International Ltd. Verfahren zur Gewinnung von Cellulose, Hemicellulose und Lignin aus Lignocellulose aus pflanzlicher Biomasse
JPWO2019026825A1 (ja) * 2017-07-31 2020-05-28 東レ株式会社 リグニンの製造方法
AU2018363835A1 (en) 2017-11-13 2020-04-16 Asfalt Kennis Centrum B.V. Lignin-based bio-asphalt

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3984362A (en) * 1972-04-19 1976-10-05 Canadian Patents And Development Limited Reinforcing polymers with laundered amorphous lignin
CA1267648A (en) * 1985-11-05 1990-04-10 Raphael Katzen Process for lignin recovery
EP0364632A1 (en) * 1988-10-17 1990-04-25 Zeneca Limited Production of lignin

Also Published As

Publication number Publication date
IL131629A0 (en) 2001-01-28
WO1998042912A1 (de) 1998-10-01
JP2001503113A (ja) 2001-03-06
EP0970275A1 (de) 2000-01-12
AU725514B2 (en) 2000-10-12
ATE234958T1 (de) 2003-04-15
NO994442L (no) 1999-11-16
EP0970275B1 (de) 2003-03-19
CA2283698A1 (en) 1998-10-01
HK1025139A1 (en) 2000-11-03
AU6512998A (en) 1998-10-20
TR199902246T2 (xx) 1999-12-21
CA2283698C (en) 2005-11-01
CN1109157C (zh) 2003-05-21
NO323180B1 (no) 2007-01-15
CN1251147A (zh) 2000-04-19
DE59807559D1 (de) 2003-04-24
US6239198B1 (en) 2001-05-29
NO994442D0 (no) 1999-09-13

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Legal Events

Date Code Title Description
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 20/03/1998, OBSERVADAS AS CONDICOES LEGAIS.

B25A Requested transfer of rights approved

Owner name: GREENVALUE S.A. (CH)

Free format text: TRANSFERIDO DE: GRANIT S.A.

B15K Others concerning applications: alteration of classification

Ipc: C08H 7/00 (2011.01), D21C 11/00 (2006.0

B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]