MX351364B - Metodos para producir celulosa alcalina y eter de celulosa. - Google Patents
Metodos para producir celulosa alcalina y eter de celulosa.Info
- Publication number
- MX351364B MX351364B MX2012002008A MX2012002008A MX351364B MX 351364 B MX351364 B MX 351364B MX 2012002008 A MX2012002008 A MX 2012002008A MX 2012002008 A MX2012002008 A MX 2012002008A MX 351364 B MX351364 B MX 351364B
- Authority
- MX
- Mexico
- Prior art keywords
- contact
- cellulose
- pulps
- hydroxide solution
- metal hydroxide
- Prior art date
Links
Classifications
-
- 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
- C08B1/08—Alkali cellulose
-
- 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
-
- 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
- C08B11/193—Mixed ethers, i.e. ethers with two or more different etherifying groups
Landscapes
- Chemical & Material Sciences (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)
- Organic Chemistry (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
Cuando una combinación de pulpas que tienen diferentes velocidades de absorción de solución de hidróxido de metal alcalino como material de partida, las condiciones de contacto tales como la temperatura de contacto y el tiempo de contacto tienen que ser cambiadas frecuentemente, dependiendo de la velocidad de absorción de las pulpas actualmente procesadas, provocando mediante esto un problema de productividad reducida. Para resolver el problema, se provee un método para producir celulosa alcalina, que comprende por lo menos las etapas de: traer dos o más tipos de pulpas que tienen diferentes velocidades de absorción de solución de hidróxido de metal alcalino en contacto con una solución de hidróxido de metal alcalino para obtener un producto de contacto y drenar el producto de contacto, en donde la velocidad de absorción más alta no es de más de 4.0 veces tan rápida como la velocidad de absorción más baja.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011034470 | 2011-02-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
MX2012002008A MX2012002008A (es) | 2012-08-30 |
MX351364B true MX351364B (es) | 2017-10-11 |
Family
ID=45656106
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2012002008A MX351364B (es) | 2011-02-21 | 2012-02-16 | Metodos para producir celulosa alcalina y eter de celulosa. |
Country Status (7)
Country | Link |
---|---|
US (1) | US9580516B2 (es) |
EP (1) | EP2489679B1 (es) |
JP (1) | JP5785507B2 (es) |
KR (1) | KR101856237B1 (es) |
CN (1) | CN102643354B (es) |
IN (1) | IN2012DE00454A (es) |
MX (1) | MX351364B (es) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5503609B2 (ja) * | 2011-09-08 | 2014-05-28 | 信越化学工業株式会社 | 非イオン性水溶性セルロースエーテルの製造方法 |
EP2937380B1 (de) | 2014-04-25 | 2019-07-10 | ContiTech AG | Polymermischung |
DE102015217698A1 (de) | 2015-09-16 | 2017-03-16 | Contitech Luftfedersysteme Gmbh | Leitfähige Elastomermischung |
EP3500590A4 (en) | 2016-08-18 | 2020-04-29 | The Board of Trustees of the Leland Stanford Junior University | PRODUCTION AND USE OF PHOSPHOETHANOLAMINE CELLULOSE AND DERIVATIVES |
US11365266B2 (en) * | 2017-03-29 | 2022-06-21 | Shin-Etsu Chemical Co., Ltd. | Method for producing cellulose ether |
Family Cites Families (38)
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US2054299A (en) | 1934-05-31 | 1936-09-15 | Brown Co | Hydroxy cellulose ether solutions |
US2138014A (en) | 1937-05-01 | 1938-11-29 | Brown Co | Preparation of viscose sirup |
US2469764A (en) | 1946-01-16 | 1949-05-10 | Erickson Donald Robert | Manufacture of hydroxy alkyl cellulose |
JPS4826385B1 (es) | 1964-12-30 | 1973-08-09 | ||
US3728331A (en) | 1969-04-04 | 1973-04-17 | Dow Chemical Co | Process for reducing the viscosity of a cellulose ether with hydrogen peroxide |
JPS5312954B2 (es) * | 1972-10-18 | 1978-05-06 | ||
US3943233A (en) | 1974-02-20 | 1976-03-09 | Engelhard Minerals & Chemicals Corporation | Processing finely divided solids on a continuous vacuum belt filter |
DE2635403B2 (de) | 1976-08-06 | 1979-07-12 | Loedige Fritz | Verfahren zum Herstellen von CeUuIoseäthern |
DE2917104A1 (de) | 1979-04-27 | 1980-11-06 | Hoechst Ag | Verfahren zur viskositaetserniedrigung von celluloseethern durch ozon und seine verwendung |
DE2924330A1 (de) | 1979-06-15 | 1980-12-18 | Hoechst Ag | Kontinuierliches verfahren und vorrichtung zur herstellung von wasserloeslicher hydroxyalkylcellulose oder deren mischethern |
DE3216786A1 (de) | 1982-05-05 | 1983-11-10 | Wolff Walsrode Ag, 3030 Walsrode | Verfahren zur herstellung von hydroxyalkylmethylcellulosen |
US4410693A (en) | 1982-08-12 | 1983-10-18 | The Dow Chemical Company | Process for preparing cellulose derivatives |
JPS6040101A (ja) | 1983-08-13 | 1985-03-02 | Daicel Chem Ind Ltd | シ−ト状アルカリセルロ−スの連続製造方法 |
JPS61148243A (ja) | 1984-12-20 | 1986-07-05 | Toyo Tire & Rubber Co Ltd | 高硬度軟質ウレタンフオ−ムの製造方法 |
US4612345A (en) | 1985-02-28 | 1986-09-16 | The Dow Chemical Company | Hydroxypropyl methyl cellulose ethers useful as suspending agents for suspension polymerization of vinyl chloride |
US4845206A (en) | 1987-05-21 | 1989-07-04 | The Dow Chemical Company | Production of cellulose ethers using a premix of alkali and etherifying agent |
GB9605073D0 (en) | 1996-03-11 | 1996-05-08 | Hoechst Ag | Manufacture of vicose and articles therefrom |
JP4010345B2 (ja) | 1996-11-28 | 2007-11-21 | 信越化学工業株式会社 | ヒドロキシプロピルメチルセルロースの製造方法 |
JP3212534B2 (ja) | 1997-04-08 | 2001-09-25 | 信越化学工業株式会社 | 低置換度ヒドロキシプロピルセルロース粉末 |
JP4087534B2 (ja) | 1999-06-24 | 2008-05-21 | 信越化学工業株式会社 | アルカリセルロース及びセルロースエーテルの製造方法 |
JP2001302701A (ja) | 2000-02-15 | 2001-10-31 | Shin Etsu Chem Co Ltd | アルカリセルロース及びセルロースエーテルの製造方法 |
JP3617641B2 (ja) | 2001-11-08 | 2005-02-09 | 株式会社白石 | 大深度圧気潜函における呼吸システム |
JP4150186B2 (ja) | 2001-12-10 | 2008-09-17 | 住友精化株式会社 | ヒドロキシアルキルセルロースの製造方法 |
JP2003183301A (ja) | 2001-12-21 | 2003-07-03 | Dai Ichi Kogyo Seiyaku Co Ltd | カルボキシメチルセルロース塩の製造法 |
JP2005008827A (ja) | 2003-06-20 | 2005-01-13 | Daicel Chem Ind Ltd | セルロースエーテルの製造における酸素濃度制御方法 |
WO2007023513A1 (ja) | 2005-08-22 | 2007-03-01 | Shin-Etsu Chemical Co., Ltd. | 溶解性の改善されたセルロース誘導体の製造製法 |
JP4410581B2 (ja) | 2004-02-26 | 2010-02-03 | 信越化学工業株式会社 | 溶解性の改善されたセルロース誘導体の製造製法 |
JP5377816B2 (ja) | 2005-06-16 | 2013-12-25 | 信越化学工業株式会社 | セルロースエーテルの製造方法 |
JP5030567B2 (ja) | 2005-12-27 | 2012-09-19 | 信越化学工業株式会社 | セルロースエーテルの製造方法 |
JP5030569B2 (ja) | 2005-12-27 | 2012-09-19 | 信越化学工業株式会社 | セルロースエーテルの製造方法 |
JP5030568B2 (ja) | 2005-12-27 | 2012-09-19 | 信越化学工業株式会社 | アルカリセルロース及びセルロースエーテルの製造方法 |
JP5052112B2 (ja) | 2005-12-27 | 2012-10-17 | 信越化学工業株式会社 | アルカリセルロース及びセルロースエーテルの製造方法 |
JP5030566B2 (ja) | 2005-12-27 | 2012-09-19 | 信越化学工業株式会社 | セルロースエーテルの製造方法 |
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US7390566B2 (en) | 2006-06-30 | 2008-06-24 | Weyerhaeuser Company | Viscose product |
EP2075260A1 (en) | 2007-12-27 | 2009-07-01 | Shin-Etsu Chemical Co., Ltd. | Methods for preparing alkali cellulose and water-soluble cellulose ether |
JP5252911B2 (ja) | 2007-12-27 | 2013-07-31 | 信越化学工業株式会社 | 水溶性セルロースエーテルの製造方法 |
-
2012
- 2012-02-16 MX MX2012002008A patent/MX351364B/es active IP Right Grant
- 2012-02-16 US US13/398,369 patent/US9580516B2/en active Active
- 2012-02-16 IN IN454DE2012 patent/IN2012DE00454A/en unknown
- 2012-02-17 EP EP12156044.5A patent/EP2489679B1/en active Active
- 2012-02-20 KR KR1020120016729A patent/KR101856237B1/ko active IP Right Grant
- 2012-02-20 JP JP2012034021A patent/JP5785507B2/ja active Active
- 2012-02-20 CN CN201210038976.9A patent/CN102643354B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
EP2489679A1 (en) | 2012-08-22 |
EP2489679B1 (en) | 2017-06-07 |
US9580516B2 (en) | 2017-02-28 |
US20120214984A1 (en) | 2012-08-23 |
KR101856237B1 (ko) | 2018-05-09 |
IN2012DE00454A (es) | 2015-06-05 |
CN102643354A (zh) | 2012-08-22 |
KR20120095797A (ko) | 2012-08-29 |
JP5785507B2 (ja) | 2015-09-30 |
JP2012188653A (ja) | 2012-10-04 |
MX2012002008A (es) | 2012-08-30 |
CN102643354B (zh) | 2014-10-08 |
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Legal Events
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