CN1037846C - 用硫酸化废棉绒生产微晶纤维素工艺 - Google Patents

用硫酸化废棉绒生产微晶纤维素工艺 Download PDF

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CN1037846C
CN1037846C CN92105523A CN92105523A CN1037846C CN 1037846 C CN1037846 C CN 1037846C CN 92105523 A CN92105523 A CN 92105523A CN 92105523 A CN92105523 A CN 92105523A CN 1037846 C CN1037846 C CN 1037846C
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microcrystalline cellulose
waste cotton
cotton velvet
technology
producing microcrystalline
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CN1081185A (zh
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苏志刚
赵光荣
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/141—Feedstock
    • Y02P20/143—Feedstock the feedstock being recycled material, e.g. plastics
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

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Abstract

本发明涉及一种用硫酸化废棉绒生产微晶纤维素工艺方法，工艺过程包括中和工艺、降解漂白工艺、烘干工序，粉碎过筛工序。本发明充分利用了硫酸化废棉绒，使其变废为宝，并且减少了污染和处理废棉绒的费用，由于是利用废物生产，所以产品成本也大大降低。

Description

用硫酸化废棉绒生产微晶纤维素工艺
本发明涉及一种用硫酸化废棉绒生产微晶纤维素工艺。
目前棉种加工中排出的硫酸化废棉绒，均作废物处理，处理方法主要是焚烧，既需要投入处理费用，浪费了人力、物力、财力，又造成了对大气的污染。
本发明的目的是提供一种利用硫酸化废棉绒生产微晶纤维素工艺。
本发明由以下工艺过程构成：1、中和工序：将棉种加工中排出的硫酸化废绒浸入碱性溶液中，加热搅拌，然后过滤，再用清水洗涤、去除杂质后甩干；2、降解漂白工序：将中和后的棉绒浸入次氯酸钠溶液，保温浸泡，然后过滤，用清水洗涤至中性，甩干；3、烘干工序：烘干至含水量低于5％以下；4、粉碎过筛工序：粉碎过149μm～74μm孔径(100～200目)的筛。
本发明所述的中和工序中碱性溶液为氢氧化钠和碳酸钠的混合溶液，重量百分比浓度为1～8％，加热搅拌2～6小时。
本发明所述的降解漂白工序中所述的漂白剂为次氯酸钠溶液，重量百分浓度为1～10％，保温浸泡3～6小时。
本发明充分利用了硫酸化废棉绒，使其变废为宝，减少了污染和处理废棉绒的费用，由于是利用废物生产，所以产品成本也大大降低。
实施例1：
将棉种加工中排出的硫酸化废棉绒，浸入重量百分比浓度为2％的氢氧化钠溶液和1％的碳酸钠溶液中，加热到80摄氏度，缓慢搅拌4小时，待酸液被中和后过滤，用清水洗涤，除砂、杂质后甩干；用重量百分比浓度为3％的次氯酸钠溶液，保温至50摄氏度左右，浸泡6小时，对短绒进行降解、漂白，然后过滤，用清水洗涤至中性，甩干，如一遍尚不能全部降解、漂白，该工序可进行两遍。之后烘干至含水量低于5％，再粉碎过149μm～74μm孔径的筛，即制成本发明的微晶纤维素。

Claims (2)

1、一种用硫酸化废棉绒生产微晶纤维素工艺方法，其特征在于由以下工艺过程构成：(1)、中和工序：将棉种加工中排出的硫酸化废绒浸入重量百分比浓度为1～8％的碱性溶液中，加热到80摄氏度并搅拌2～6小时，然后过滤，再用清水洗涤、去除杂质后甩干；(2)、降解漂白工序：将中和后的棉绒浸入重量百分比浓度为1～10％的次氯酸钠溶液，保温至50摄氏度，浸泡3～6小时，然后过滤，用清水洗涤至中性，甩干；(3)、烘干工序：烘干至含水量低于5％以下；(4)、粉碎过筛工序：粉碎过149μm～74μm孔径筛。
2、如权利要求1所述的用硫酸化废棉绒生产微晶纤维素工艺方法，其特征在于所述的中和工序中碱性溶液为氢氧化钠和碳酸钠的混合溶液，氢氧化钠和碳酸钠的重量浓度比为2∶1。
CN92105523A 1992-07-04 1992-07-04 用硫酸化废棉绒生产微晶纤维素工艺 Expired - Fee Related CN1037846C (zh)

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CN1037846C true CN1037846C (zh) 1998-03-25

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101067287B (zh) * 2007-05-31 2011-07-27 王光建 用废酸绒制造微晶纤维素的生产工艺

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1051093C (zh) * 1994-09-16 2000-04-05 中国科学院广州化学研究所 溶剂法制取纳米级微晶纤维素粉体的方法
CN1075514C (zh) * 1997-10-13 2001-11-28 徐旗开 用硫酸化废棉绒制造微晶纤维素的生产方法
CN101368347B (zh) * 2008-09-12 2010-12-15 王跃成 用硫酸化废棉绒生产微晶纤维素工艺方法
CN101899170B (zh) * 2010-03-31 2012-09-05 濮阳市运山生物化工厂 棉花纤维粉及制备方法
CN101984159A (zh) * 2010-11-05 2011-03-09 铜陵市德力来纺纱有限责任公司 一种从废棉弹力纱布中提取棉纤维的方法
CN103122592B (zh) * 2011-11-18 2015-01-07 奎屯新大陆化学有限公司 由废棉制备微晶纤维素的方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU737404A1 (ru) * 1976-04-02 1980-05-30 Институт Химии Ан Узбекской Сср Способ получени высокомолекул рной карбоксиметилцеллюлозы
SU829750A1 (ru) * 1979-07-23 1981-05-15 Институт Химии Им. В.И.Никитина Антаджикской Ccp Способ получени хлопковой целлюлозы
SU950734A1 (ru) * 1978-12-05 1982-08-15 Предприятие П/Я А-3844 Способ растворени целлюлозы

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU737404A1 (ru) * 1976-04-02 1980-05-30 Институт Химии Ан Узбекской Сср Способ получени высокомолекул рной карбоксиметилцеллюлозы
SU950734A1 (ru) * 1978-12-05 1982-08-15 Предприятие П/Я А-3844 Способ растворени целлюлозы
SU829750A1 (ru) * 1979-07-23 1981-05-15 Институт Химии Им. В.И.Никитина Антаджикской Ccp Способ получени хлопковой целлюлозы

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101067287B (zh) * 2007-05-31 2011-07-27 王光建 用废酸绒制造微晶纤维素的生产工艺

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