WO2005103371A1 - Procede de fabrication de pate de bambou pour la production de diacetate de cellulose - Google Patents

Procede de fabrication de pate de bambou pour la production de diacetate de cellulose Download PDF

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Publication number
WO2005103371A1
WO2005103371A1 PCT/CN2005/000527 CN2005000527W WO2005103371A1 WO 2005103371 A1 WO2005103371 A1 WO 2005103371A1 CN 2005000527 W CN2005000527 W CN 2005000527W WO 2005103371 A1 WO2005103371 A1 WO 2005103371A1
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WO
WIPO (PCT)
Prior art keywords
producing
bamboo
weight
bamboo pulp
divine
Prior art date
Application number
PCT/CN2005/000527
Other languages
English (en)
Chinese (zh)
Inventor
Ziqun Zhao
Original Assignee
Ziqun Zhao
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 Ziqun Zhao filed Critical Ziqun Zhao
Publication of WO2005103371A1 publication Critical patent/WO2005103371A1/fr

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials

Definitions

  • the invention relates to a method for preparing bamboo pulp, in particular to a method for preparing bamboo pulp for producing divinegar tablets.
  • the diacetate tablets (cellulose diacetate tablets) used for the production of cellulose acetate tow for cigarettes are generally processed with high-purity bleached wood pulp or cotton linter as the main raw material.
  • Wood pulp contains more than 96% alpha cellulose and cotton linter contains more than 99% alpha cellulose.
  • the acetate industry has been affected.
  • bamboo pulp is prepared from fast-growing and high-yielding moso bamboo resources, with abundant resources and promising prospects.
  • the bamboo pulp prepared by the existing technology generally has low alpha cellulose and a low degree of polymerization, and thus has not been used in the production of diacetate tablets of cellulose acetate tow for tobacco.
  • the invention mainly provides a method for preparing bamboo pulp for producing divine flakes, which uses moso bamboo as a raw material, the bamboo pulp has high alpha cellulose and rich production resources. Technical issues such as lower alpha cellulose, lower degree of polymerization, and higher cost.
  • a method for preparing bamboo pulp for producing divine flakes characterized in that the process steps of the method are
  • Alkali refining It is carried out in a hydrolysis pot or an alkalizing tower, and alkali is added according to the weight of the slurry, and the temperature is raised and maintained for a certain time.
  • Bleaching It is performed in a bleaching machine.
  • Moso bamboo can be cut according to the requirements of production.
  • the moso bamboo is cut to a length of 2-50 cm, a width of 0.5 to 3 cm, and water immersion for 8-15 hours.
  • the acid solution used may be HC1 or an acid such as S0 4.
  • the acid solution in the hydrolysis process is a S 0 4 solution, and its configuration is 0.1 to 3% by weight of the bamboo Weigh H 2 S0 4 , prepare an aqueous solution with a ratio of 1: 1-5, raise the temperature to 100-20 CTC, and keep it for 80-180 minutes. Through this process, a hydrolysis yield of 60-95% can be obtained.
  • the alkali used for cooking may be NaOH or other bases.
  • the alkali used for cooking is 5-16% of the weight of the hydrolyzed yield, and then 1: 1 to 5 liquid Ratio formulated into an aqueous solution.
  • the cooking process is to raise the temperature to 80-200 ° C. in a cooking pot, and then hold the pressure at 0.1-0.8 Npa for 20-100 minutes. After the cooking process, the cooking yield is 50-85
  • the beating process is that the bamboo material is pulverized with a rubbing machine, and the time is
  • the yield after beating is 30-60%.
  • caustic soda is added according to 0.5-5% of the weight of the slurry, the temperature is raised to 60 ° C, and the temperature is maintained for 20-100 minutes.
  • the yield after alkali refining is 20-60%.
  • the bleaching process is to add Cl 2 according to the slurry weight of 0.1-5%, to Na-C10 2 0.5-5% to the content of 60-90% according to the absolute dry weight of the slurry, and then to the slurry.
  • Weight 0.1-3% with H 2 S0 4 bleaching time is 30-60 minutes, and temperature is 50-100 ° C.
  • Cl 2 is liquid chlorine, and the bleaching yield is 8-16%.
  • the temperature of the hot air during the drying process is 80-100 ° C.
  • the ratio of the acid-base solution is different from that of the previous process, thus the quality of the bamboo paddle meal prepared by the present invention can reach:
  • the present invention has a simple and novel process.
  • the alpha cellulose, the degree of polymerization, and the degree of whiteness of bamboo pulp produced by using bamboo material and the process and ratio are far higher than the current level, thereby realizing the production of diacetate.
  • the production cost of products such as tablets is relatively low.
  • this process can also be used for the production of pulp of linoleic acid and tencel fiber.
  • FIG. 1 is a process block diagram of a method for preparing bamboo pulp for producing divine tablets according to the present invention.
  • the method for preparing bamboo pulp for producing divine tablets is:
  • Blend Cl 2 liquid chlorine
  • Blend NaC10 2 sodium chlorite
  • Blended with 0.1% of pulp weight in HsSO, bleaching time is 60 minutes, temperature 100 ° C, 16% bleaching yield
  • the quality index of bamboo pulp prepared by the above method is as follows:
  • the method for preparing bamboo paddle meal for the production of divine flakes is:
  • the quality indexes of the bamboo pulp prepared according to the above method are as follows:
  • the method for preparing bamboo pulp for producing divine flakes is:
  • the quality index of bamboo pulp prepared by the above method is as follows:

Abstract

L'invention concerne un procédé de fabrication de pâte de bambou pour la production de diacétate de cellulose, comportant les étapes suivantes: préparation des pâtes, pré-hydrolyse, digestion, battage, traitement alcalin, blanchiment, séchage etc. Ledit procédé peut également employé dans la production d'autres fibres. La pâte de bambou obtenue selon l'invention présente une teneur élevée en alpha cellulose. La présente invention permet de résoudre les problèmes habituels tels qu'une faible teneur en alpha cellulose, un faible degré de polymérisation, des coûts élevés etc.
PCT/CN2005/000527 2004-04-23 2005-04-18 Procede de fabrication de pate de bambou pour la production de diacetate de cellulose WO2005103371A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNB2004100179361A CN1294322C (zh) 2004-04-23 2004-04-23 一种用于生产二醋片的竹浆粕制备方法
CN200410017936.1 2004-04-23

Publications (1)

Publication Number Publication Date
WO2005103371A1 true WO2005103371A1 (fr) 2005-11-03

Family

ID=34479243

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2005/000527 WO2005103371A1 (fr) 2004-04-23 2005-04-18 Procede de fabrication de pate de bambou pour la production de diacetate de cellulose

Country Status (2)

Country Link
CN (1) CN1294322C (fr)
WO (1) WO2005103371A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101251530B (zh) * 2008-03-05 2011-11-09 东华大学 一种用溶解法鉴别竹浆纤维的方法
CN102888772A (zh) * 2012-10-17 2013-01-23 四川永丰纸业股份有限公司 一种汽蒸硫酸盐置换蒸煮制备竹浆粕的方法
CN114605561A (zh) * 2020-12-03 2022-06-10 中国制浆造纸研究院有限公司 一种醋化级木浆粕的制备方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101691407A (zh) * 2009-09-21 2010-04-07 南通醋酸纤维有限公司 一种纤维素浆粕及其生产方法
CN108193533B (zh) * 2017-12-10 2020-04-17 南京汉尔斯生物科技有限公司 一种竹浆粕的制备方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1308160A (zh) * 2000-11-02 2001-08-15 河北吉藁化纤有限责任公司 利用竹材生产粘胶纤维浆粕的工艺
CN1458306A (zh) * 2002-05-14 2003-11-26 河北吉藁化纤有限责任公司 竹材粘胶纤维及其制备方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1456745A (zh) * 2002-05-10 2003-11-19 李平 龙须雅竹书画纸
CN1381620A (zh) * 2002-05-14 2002-11-27 河北吉藁化纤有限责任公司 竹材粘胶纤维及其生产工艺
CN1410627A (zh) * 2002-09-16 2003-04-16 成都春天绿竹资源开发有限责任公司 纯天然抗菌竹浆的生产工艺

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1308160A (zh) * 2000-11-02 2001-08-15 河北吉藁化纤有限责任公司 利用竹材生产粘胶纤维浆粕的工艺
CN1458306A (zh) * 2002-05-14 2003-11-26 河北吉藁化纤有限责任公司 竹材粘胶纤维及其制备方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
LONG Y.Q. ET AL: "Technology of pulp and paper.", September 1980 (1980-09-01), pages 137 - 138 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101251530B (zh) * 2008-03-05 2011-11-09 东华大学 一种用溶解法鉴别竹浆纤维的方法
CN102888772A (zh) * 2012-10-17 2013-01-23 四川永丰纸业股份有限公司 一种汽蒸硫酸盐置换蒸煮制备竹浆粕的方法
CN102888772B (zh) * 2012-10-17 2015-01-28 四川永丰纸业股份有限公司 一种汽蒸硫酸盐置换蒸煮制备竹浆粕的方法
CN114605561A (zh) * 2020-12-03 2022-06-10 中国制浆造纸研究院有限公司 一种醋化级木浆粕的制备方法

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Publication number Publication date
CN1294322C (zh) 2007-01-10
CN1570268A (zh) 2005-01-26

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