NO982673L - Preparation of chitosan - Google Patents

Preparation of chitosan

Info

Publication number
NO982673L
NO982673L NO982673A NO982673A NO982673L NO 982673 L NO982673 L NO 982673L NO 982673 A NO982673 A NO 982673A NO 982673 A NO982673 A NO 982673A NO 982673 L NO982673 L NO 982673L
Authority
NO
Norway
Prior art keywords
cooling
drum
treatment
circulation
washing
Prior art date
Application number
NO982673A
Other languages
Norwegian (no)
Other versions
NO982673D0 (en
Inventor
Dag Arntsen
Original Assignee
Bioeffect As
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 Bioeffect As filed Critical Bioeffect As
Priority to NO982673A priority Critical patent/NO982673L/en
Publication of NO982673D0 publication Critical patent/NO982673D0/en
Priority to PCT/NO1999/000190 priority patent/WO1999064470A2/en
Priority to AU55380/99A priority patent/AU5538099A/en
Publication of NO982673L publication Critical patent/NO982673L/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
    • C08B37/0006—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
    • C08B37/0024—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid beta-D-Glucans; (beta-1,3)-D-Glucans, e.g. paramylon, coriolan, sclerotan, pachyman, callose, scleroglucan, schizophyllan, laminaran, lentinan or curdlan; (beta-1,6)-D-Glucans, e.g. pustulan; (beta-1,4)-D-Glucans; (beta-1,3)(beta-1,4)-D-Glucans, e.g. lichenan; Derivatives thereof
    • C08B37/0027—2-Acetamido-2-deoxy-beta-glucans; Derivatives thereof
    • C08B37/003—Chitin, i.e. 2-acetamido-2-deoxy-(beta-1,4)-D-glucan or N-acetyl-beta-1,4-D-glucosamine; Chitosan, i.e. deacetylated product of chitin or (beta-1,4)-D-glucosamine; Derivatives thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Molecular Biology (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

Prosessanlegg og fremgangsmåte for automatisk flertrinnsfremstilling av kitinderivatet kitosan, ut fra et bio- logisk skallmateriale som særlig kan være rekeskall. Anlegget har en tank (2) med en åpning (16) øverst, et varmeelement (40), en pumpe (24) for sirkulasjon av væske, en innvendig trommel (8) med perforert vegg for rotasjon under anleggets drift, dyser (68,72) for å spre væske inn i trommelen, og programmerbare styreorganer for den automatiserte drift. Fremgangsmåtens prosesstrinn bygger på at prosessanleggets ene kombinasjon tank/trommel inngår som hovedelement i samtlige trinn, idet disse omfatter opp- varming under rotasjon og sirkulasjon, vasking/nedkjøling, syrebehandling, ny vasking/nedkjøling, lutbehandling, ny vasking/nedkjøling og tørking ved tilfør- sel av tørkeluft. Nitrogengass tilføres fortrinnsvis under syre- eller lutbehandlingen for å redusere oksygeninnholdet i den masse som behandles.Process plant and process for automatic multistage preparation of the chitin derivative chitosan, from a biological shell material which may in particular be shrimp shell. The system has a tank (2) with an opening (16) at the top, a heating element (40), a pump (24) for circulation of liquid, an inner drum (8) with perforated wall for rotation during the operation of the system, nozzles (68, 72) to disperse fluid into the drum, and programmable controls for the automated operation. The process step of the process is based on the fact that one process tank / drum combination is included as the main element in all the steps, which includes heating during rotation and circulation, washing / cooling, acid treatment, new washing / cooling, lye treatment, new washing / cooling and drying upon supply. - seal of dry air. Nitrogen gas is preferably added during the acid or liquor treatment to reduce the oxygen content of the pulp being treated.

NO982673A 1998-06-10 1998-06-10 Preparation of chitosan NO982673L (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NO982673A NO982673L (en) 1998-06-10 1998-06-10 Preparation of chitosan
PCT/NO1999/000190 WO1999064470A2 (en) 1998-06-10 1999-06-10 An integrated plant for producing chitosan
AU55380/99A AU5538099A (en) 1998-06-10 1999-06-10 An integrated plant for producing chitosan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO982673A NO982673L (en) 1998-06-10 1998-06-10 Preparation of chitosan

Publications (2)

Publication Number Publication Date
NO982673D0 NO982673D0 (en) 1998-06-10
NO982673L true NO982673L (en) 1999-12-13

Family

ID=19902140

Family Applications (1)

Application Number Title Priority Date Filing Date
NO982673A NO982673L (en) 1998-06-10 1998-06-10 Preparation of chitosan

Country Status (3)

Country Link
AU (1) AU5538099A (en)
NO (1) NO982673L (en)
WO (1) WO1999064470A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102873786A (en) * 2012-08-31 2013-01-16 潘明诗 Chitosan reclaiming machine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8824971D0 (en) * 1988-10-25 1988-11-30 Roberts G A F Method for production of chitosan
FR2650282B1 (en) * 1989-07-26 1992-09-04 Dev Utilisations Cuir PROCESS FOR THE PREPARATION OF CHITOSAN BY N-DEACETYLATION OF CHITINE
FI86068C (en) * 1989-10-20 1992-07-10 Firextra Oy Process for the production of chitosan and other products from shells of organisms, in particular from shells of marine organisms
RU2067588C1 (en) * 1991-09-17 1996-10-10 Борис Александрович Кузин Process for preparing chitozane
RU2081882C1 (en) * 1993-08-05 1997-06-20 Алексей Николаевич Полтавец Apparatus for producing chitin- or chitosane-type polysaccaharides from natural feedstock
RU2087484C1 (en) * 1993-12-21 1997-08-20 Сова Вячаслав Васильевич Installation for producing chitosan
DE19530689B4 (en) * 1995-08-08 2004-06-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Process for the production of chitosan

Also Published As

Publication number Publication date
WO1999064470A2 (en) 1999-12-16
WO1999064470A3 (en) 2000-02-03
AU5538099A (en) 1999-12-30
WO1999064470B1 (en) 2000-03-16
NO982673D0 (en) 1998-06-10

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Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application