WO2002057319A3 - Method for producing uniform, monodisperse cellulose beads and the use thereof - Google Patents

Method for producing uniform, monodisperse cellulose beads and the use thereof Download PDF

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Publication number
WO2002057319A3
WO2002057319A3 PCT/DE2002/000145 DE0200145W WO02057319A3 WO 2002057319 A3 WO2002057319 A3 WO 2002057319A3 DE 0200145 W DE0200145 W DE 0200145W WO 02057319 A3 WO02057319 A3 WO 02057319A3
Authority
WO
WIPO (PCT)
Prior art keywords
cellulose beads
producing uniform
liquid medium
monodisperse
droplets
Prior art date
Application number
PCT/DE2002/000145
Other languages
German (de)
French (fr)
Other versions
WO2002057319A2 (en
Inventor
Frank-Guenter Niemz
Dieter Vorbach
Original Assignee
Thueringisches Inst Textil
Frank-Guenter Niemz
Dieter Vorbach
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 Thueringisches Inst Textil, Frank-Guenter Niemz, Dieter Vorbach filed Critical Thueringisches Inst Textil
Publication of WO2002057319A2 publication Critical patent/WO2002057319A2/en
Publication of WO2002057319A3 publication Critical patent/WO2002057319A3/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/12—Powdering or granulating
    • C08J3/14—Powdering or granulating by precipitation from solutions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/10—Making granules by moulding the material, i.e. treating it in the molten state
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B1/00—Preparatory treatment of cellulose for making derivatives thereof, e.g. pre-treatment, pre-soaking, activation
    • C08B1/003—Preparation of cellulose solutions, i.e. dopes, with different possible solvents, e.g. ionic liquids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B16/00—Regeneration of cellulose
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives

Abstract

The invention relates to a method for producing uniform, porous cellulose beads with a particle diameter ranging up to 5000 νm. According to said method, a cellulose solution is converted into droplets by means of a capillary, said droplets passing through a gap under the influence of gravity into a liquid medium, where they take on a spherical shape. The liquid medium used can be a single or multi-component organic and/or inorganic system, such as for example hydrous N-methylmorpholine-N-oxide. The cellulose beads that are obtained can be used as a starting material for further chemical modification, as an absorbing agent in biotechnology, as a support material for biocatalysts, cell cultures or nutrient solutions, as ion exchangers or catalysts, such as automotive catalytic converters, or as feedstock in chemical reactors.
PCT/DE2002/000145 2001-01-19 2002-01-18 Method for producing uniform, monodisperse cellulose beads and the use thereof WO2002057319A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10102334A DE10102334C2 (en) 2001-01-19 2001-01-19 Process for the production of regular, monodisperse cellulose beads and their use
DE10102334.0 2001-01-19

Publications (2)

Publication Number Publication Date
WO2002057319A2 WO2002057319A2 (en) 2002-07-25
WO2002057319A3 true WO2002057319A3 (en) 2002-09-19

Family

ID=7671105

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2002/000145 WO2002057319A2 (en) 2001-01-19 2002-01-18 Method for producing uniform, monodisperse cellulose beads and the use thereof

Country Status (2)

Country Link
DE (1) DE10102334C2 (en)
WO (1) WO2002057319A2 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT412404B (en) * 2003-01-20 2005-02-25 Chemiefaser Lenzing Ag PROCESS FOR PREPARING A POROUS CELLULOSIC BODY
AT413287B (en) * 2003-11-25 2006-01-15 Chemiefaser Lenzing Ag PROCESS FOR PRODUCING CELLULOSIC FIBERS
AT505904B1 (en) 2007-09-21 2009-05-15 Chemiefaser Lenzing Ag CELLULOSE SUSPENSION AND METHOD FOR THE PRODUCTION THEREOF
AT505905B1 (en) 2007-09-21 2009-05-15 Chemiefaser Lenzing Ag CELLULOSE POWDER AND METHOD FOR THE PRODUCTION THEREOF
US20100297445A1 (en) * 2007-11-22 2010-11-25 Basf Se Production of spherical particles from solutions comprising a water-miscible solvent by the method of underwater pelletization
ATE512189T1 (en) * 2009-09-30 2011-06-15 Ems Patent Ag METHOD FOR PRODUCING POLYMER PARTICLES
US10221211B2 (en) 2013-09-27 2019-03-05 Kaneka Corporation Process for producing porous cellulose beads using alkali aqueous solution
AT515174B1 (en) 2013-10-15 2019-05-15 Chemiefaser Lenzing Ag Cellulose suspension, process for its preparation and use
AT515180B1 (en) 2013-10-15 2016-06-15 Chemiefaser Lenzing Ag Three-dimensional cellulosic molding, process for its preparation and its use
AT515152B1 (en) 2013-11-26 2015-12-15 Chemiefaser Lenzing Ag A process for pretreating recovered cotton fibers for use in the manufacture of regenerated cellulose moldings
AT517020B1 (en) 2015-02-06 2020-02-15 Chemiefaser Lenzing Ag Recycling of cellulosic synthetic fibers
CN108704616A (en) * 2018-05-28 2018-10-26 苏州佑君环境科技有限公司 A kind of preparation method of modification of chitosan fluorine ion absorber
BR112021003618B1 (en) 2018-08-30 2024-02-27 Dow Global Technologies Llc APPARATUS FOR BATCHING OR CONTINUOUSLY FORMING SOLID POLYMER PARTICLES AND PROCESS FOR FORMING SOLID POLYMER PARTICLES FROM A POLYMER MELT

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2543928A (en) * 1946-06-08 1951-03-06 Olin Ind Inc Method of producing cellulose pellets
DE2005408A1 (en) * 1969-02-07 1970-09-03 Pharmacia Fine Chemicals Ab
EP0303259A2 (en) * 1987-08-10 1989-02-15 Asahi Kasei Kogyo Kabushiki Kaisha Multi-cellular cellulose particle and process for preparation thereof
DE19755353C1 (en) * 1997-12-14 1999-04-29 Thueringisches Inst Textil Production of porous cellulose beads
WO2000053833A1 (en) * 1999-03-08 2000-09-14 Ostthüringische Materialprüfgesellschaft Für Textil Und Kunststoffe Mbh Method for producing shaped bodies

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4205882A1 (en) * 1992-02-26 1993-09-02 Basf Ag METHOD FOR PRODUCING PARTICULATE POLY (METH) ACRYLIMIDE POLYMERISATE
DE4338212C2 (en) * 1993-11-10 1996-01-18 Nukem Gmbh Method and device for producing plastic particles

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2543928A (en) * 1946-06-08 1951-03-06 Olin Ind Inc Method of producing cellulose pellets
DE2005408A1 (en) * 1969-02-07 1970-09-03 Pharmacia Fine Chemicals Ab
EP0303259A2 (en) * 1987-08-10 1989-02-15 Asahi Kasei Kogyo Kabushiki Kaisha Multi-cellular cellulose particle and process for preparation thereof
DE19755353C1 (en) * 1997-12-14 1999-04-29 Thueringisches Inst Textil Production of porous cellulose beads
WO2000053833A1 (en) * 1999-03-08 2000-09-14 Ostthüringische Materialprüfgesellschaft Für Textil Und Kunststoffe Mbh Method for producing shaped bodies

Also Published As

Publication number Publication date
DE10102334C2 (en) 2003-12-04
WO2002057319A2 (en) 2002-07-25
DE10102334A1 (en) 2002-08-01

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