BR0003502A - Processo para preparação de carboximetilcelulose - Google Patents

Processo para preparação de carboximetilcelulose

Info

Publication number
BR0003502A
BR0003502A BR0003502-5A BR0003502A BR0003502A BR 0003502 A BR0003502 A BR 0003502A BR 0003502 A BR0003502 A BR 0003502A BR 0003502 A BR0003502 A BR 0003502A
Authority
BR
Brazil
Prior art keywords
cellulose
preparing
methyl cellulose
carboxy methyl
carboxy
Prior art date
Application number
BR0003502-5A
Other languages
English (en)
Other versions
BR0003502B1 (pt
Inventor
Heiko Thielking
Wolfgang Koch
Klaus Nachtkamp
Bernd Ondruschka
Matthias Nuechter
Ute Heinze
Dieter Klemm
Original Assignee
Wolff Walsrode Ag
Univ Schiller Jena
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 Wolff Walsrode Ag, Univ Schiller Jena filed Critical Wolff Walsrode Ag
Publication of BR0003502A publication Critical patent/BR0003502A/pt
Publication of BR0003502B1 publication Critical patent/BR0003502B1/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B11/00—Preparation of cellulose ethers
    • C08B11/02—Alkyl or cycloalkyl ethers
    • C08B11/04—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals
    • C08B11/10—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals substituted with acid radicals
    • C08B11/12—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals substituted with acid radicals substituted with carboxylic radicals, e.g. carboxymethylcellulose [CMC]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J19/12—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electromagnetic waves
    • B01J19/122—Incoherent waves
    • B01J19/126—Microwaves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00002—Chemical plants
    • B01J2219/00027—Process aspects
    • B01J2219/00029—Batch processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00002—Chemical plants
    • B01J2219/00027—Process aspects
    • B01J2219/00033—Continuous processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/0873—Materials to be treated
    • B01J2219/0881—Two or more materials
    • B01J2219/089—Liquid-solid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/12—Processes employing electromagnetic waves
    • B01J2219/1203—Incoherent waves
    • B01J2219/1206—Microwaves
    • B01J2219/1275—Controlling the microwave irradiation variables
    • B01J2219/1278—Time
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/12—Processes employing electromagnetic waves
    • B01J2219/1203—Incoherent waves
    • B01J2219/1206—Microwaves
    • B01J2219/1275—Controlling the microwave irradiation variables
    • B01J2219/1281—Frequency
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/12—Processes employing electromagnetic waves
    • B01J2219/1203—Incoherent waves
    • B01J2219/1206—Microwaves
    • B01J2219/1287—Features relating to the microwave source
    • B01J2219/129—Arrangements thereof
    • B01J2219/1293—Single source

Landscapes

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

Abstract

Patente de Invenção: <B>"PROCESSO PARA PREPARAçãO DE CARBOXI-METILCELULOSE"<D>. é descrito um processo para preparação de carboximetilcelulose, no qual a) celulose é ativada e b) é reagida com um reagente de carbóximetilação, sendo que a etapa de reação b) é realizada sob um campo eletromagnético com uma freq³ência na faixa de 10 MHz até 23 GHz.
BRPI0003502-5A 1999-08-13 2000-08-11 processo para preparação de carboximetilcelulose. BR0003502B1 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19938501A DE19938501A1 (de) 1999-08-13 1999-08-13 Verfahren zur Herstellung von Carboxymethylcellulose

Publications (2)

Publication Number Publication Date
BR0003502A true BR0003502A (pt) 2001-08-07
BR0003502B1 BR0003502B1 (pt) 2009-05-05

Family

ID=7918353

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0003502-5A BR0003502B1 (pt) 1999-08-13 2000-08-11 processo para preparação de carboximetilcelulose.

Country Status (9)

Country Link
EP (1) EP1083182B1 (pt)
JP (1) JP2001048901A (pt)
KR (1) KR100650097B1 (pt)
AT (1) ATE238350T1 (pt)
BR (1) BR0003502B1 (pt)
CA (1) CA2315505A1 (pt)
DE (2) DE19938501A1 (pt)
MX (1) MXPA00007822A (pt)
NO (1) NO20004037L (pt)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101899518B1 (ko) * 2016-11-18 2018-09-19 한국원자력연구원 방사선 전처리를 이용한 카르복시메틸셀룰로오스의 제조방법
CN111135780B (zh) * 2020-01-02 2021-09-07 中国科学院广州能源研究所 利用微波连续反应装置解聚木质素的方法
KR102697279B1 (ko) 2021-11-29 2024-08-22 주식회사 지엘켐 고치환도 카르복시메틸 셀룰로오스의 제조 방법

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3900463A (en) * 1968-12-14 1975-08-19 Dai Ichi Kogyo Seiyaku Co Ltd Process for preparing alkali carboxymethyl cellulose
DE2823710A1 (de) * 1978-05-31 1979-12-06 Hoechst Ag Verfahren zur herstellung von quellfaehiger, vernetzter carboxyalkylcellulose in faserform aus natuerlich vorkommender cellulose und deren verwendung
JPS62185701A (ja) * 1986-02-10 1987-08-14 Daicel Chem Ind Ltd カルボキシメチルセルロ−スアルカリ金属塩の製造方法
JPH09176201A (ja) * 1995-12-26 1997-07-08 Daicel Chem Ind Ltd カルボキシメチルセルロースの製造方法
DE19624990A1 (de) * 1996-06-22 1998-01-08 Gluesenkamp Karl Heinz Dr Verfahren zur chemischen kontrollierten Modifizierung von Oberflächen sowie von Acyl- und/oder Hydroxyl-Gruppen tragenden Polymeren
AU3454497A (en) * 1996-07-10 1998-02-02 Sound Pipe Ltd Acetylation of lignocellulosic materials and applications thereof
DE19842637A1 (de) * 1997-10-06 1999-04-08 Henkel Kgaa Retardierte Polysaccharidderivate, deren Herstellung und Verwendung

Also Published As

Publication number Publication date
CA2315505A1 (en) 2001-02-13
DE19938501A1 (de) 2001-02-15
JP2001048901A (ja) 2001-02-20
NO20004037L (no) 2001-02-14
EP1083182B1 (de) 2003-04-23
NO20004037D0 (no) 2000-08-11
DE50001841D1 (de) 2003-05-28
BR0003502B1 (pt) 2009-05-05
ATE238350T1 (de) 2003-05-15
MXPA00007822A (es) 2004-12-09
KR20010050064A (ko) 2001-06-15
EP1083182A1 (de) 2001-03-14
KR100650097B1 (ko) 2006-11-27

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Legal Events

Date Code Title Description
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B25D Requested change of name of applicant approved

Owner name: FRIEDRICH-SCHILLER-UNIVERSITAET JENA (DE) , DOW WO

Free format text: ALTERADO DE: WOLFF WALSRODE AG

B25G Requested change of headquarter approved

Owner name: FRIEDRICH-SCHILLER-UNIVERSITAET JENA (DE) , DOW WO

Free format text: SEDE ALTERADA CONFORME SOLICITADO NA PETICAO NO 020080121567/RJ DE 18/09/2008.

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 11/08/2000, OBSERVADAS AS CONDICOES LEGAIS.

B25A Requested transfer of rights approved

Owner name: FRIEDRICH-SCHILLER-UNIVERSITAET JENA (DE) , DOW GL

Free format text: TRANSFERIDO DE: DOW WOLFF CELLULOSICS GMBH.

B24C Patent annual fee: request for for restoration

Free format text: REFERENTE A 10A, 11A E 12A ANUIDADE(S), CONFORME ART. 87 DA LPI 9.279.

B24H Lapse because of non-payment of annual fees (definitively: art 78 iv lpi)
B24F Patent annual fee: publication cancelled

Free format text: ANULADA A PUBLICACAO CODIGO 24.8 NA RPI NO 2259 DE 22/04/2014 POR TER SIDO INDEVIDA.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE AS 10A, 11A E 12A ANUIDADES.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2607 DE 22-12-2020 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.