CN107245896A - 一种提高纸浆漂白效率的方法 - Google Patents
一种提高纸浆漂白效率的方法 Download PDFInfo
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- CN107245896A CN107245896A CN201710472450.4A CN201710472450A CN107245896A CN 107245896 A CN107245896 A CN 107245896A CN 201710472450 A CN201710472450 A CN 201710472450A CN 107245896 A CN107245896 A CN 107245896A
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- pulp
- bleaching
- hydrogen peroxide
- paper pulp
- bleaching efficiency
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- 238000004076 pulp bleaching Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 18
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229920001131 Pulp (paper) Polymers 0.000 claims abstract description 31
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 claims abstract description 13
- 102000004190 Enzymes Human genes 0.000 claims abstract description 12
- 108090000790 Enzymes Proteins 0.000 claims abstract description 12
- 102000016938 Catalase Human genes 0.000 claims abstract description 8
- 108010053835 Catalase Proteins 0.000 claims abstract description 8
- NUKYPUAOHBNCPY-UHFFFAOYSA-N 4-aminopyridine Chemical compound NC1=CC=NC=C1 NUKYPUAOHBNCPY-UHFFFAOYSA-N 0.000 claims description 9
- 229960004979 fampridine Drugs 0.000 claims description 9
- 238000004061 bleaching Methods 0.000 abstract description 10
- 150000003928 4-aminopyridines Chemical class 0.000 abstract 2
- 238000011109 contamination Methods 0.000 abstract 1
- 238000009897 hydrogen peroxide bleaching Methods 0.000 abstract 1
- 229940088598 enzyme Drugs 0.000 description 9
- 229920005610 lignin Polymers 0.000 description 5
- 239000007844 bleaching agent Substances 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 4
- 229920002472 Starch Polymers 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 150000003222 pyridines Chemical class 0.000 description 3
- 235000019698 starch Nutrition 0.000 description 3
- 239000008107 starch Substances 0.000 description 3
- 229920002488 Hemicellulose Polymers 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 229910001431 copper ion Inorganic materials 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000002255 enzymatic effect Effects 0.000 description 1
- 229940059442 hemicellulase Drugs 0.000 description 1
- 108010002430 hemicellulase Proteins 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1026—Other features in bleaching processes
- D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes
-
- 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
- D21C5/005—Treatment of cellulose-containing material with microorganisms or enzymes
-
- 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
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/16—Bleaching ; Apparatus therefor with per compounds
- D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Microbiology (AREA)
- Paper (AREA)
Abstract
本发明公开了一种提高纸浆漂白效率的方法，在过氧化氢酶、氯化铜、4‑氨基吡啶存在的条件下，对纸浆进行过氧化氢漂白；对纸浆处理时，控制过氧化氢酶、氯化铜、4‑氨基吡啶和过氧化氢的用量，控制处理的温度和时间；本发明采用无污染的生物酶与仿酶协同漂白离技术，成本低，无污染，改善纸浆漂白性能明显。
Description
技术领域
本发明涉及一种提高纸浆漂白效率的方法，是一项改进的纸浆漂白的技术，属于造纸技术领域。
背景技术
目前，生物技术在纸浆漂白中应用得比较多。在生物漂白中利用微生物或者生物酶处理纸浆，促进半纤维素或木素降解，提高漂白剂与纸浆的反应效率，可以提高纸浆白度和强度。
半纤维素酶降解纸浆表面沉积的半纤维素，纸浆孔隙变大，漂白剂与纸浆容易反应，促进木素降解溶出，纸浆漂白效率大大提高，漂白剂用量下降，污染物减少。木素降解酶与木素反应，也可以促进漂白剂与纸浆容易反应。生物酶促进纸浆漂白的效率有限，限制了生产应用，因此需要研究仿酶进行漂白。铜离子与吡啶类化合物组成的仿酶体系降解木素的过程中产生氧的活化中心，从而具有催化脱木素能力，能够有效地降解酚型和非酚型木素结构，促进纸浆木素溶出，提高漂白效率。
利用生物酶的特点和仿酶催化的优点，提出（过氧化氢酶+氯化铜+4-氨基吡啶）提高纸浆漂白效率的方法，可以改进纸浆漂白效率，目前尚未见相关的技术报道。
发明内容
本发明提供一种改进的纸浆漂白方法，其工艺技术容易实施，无污染，提高纸浆漂白效率的效果明显。
本发明的技术方案是一种提高纸浆漂白效率的方法，在过氧化氢酶、氯化铜、4-氨基吡啶存在的条件下，对纸浆进行处理。
所述对纸浆进行处理时还添加过氧化氢。
所述过氧化氢酶用量为3～7U/g纸浆，氯化铜用量为纸浆质量的0.2～0.5%，4-氨基吡啶用量为纸浆质量的0.1～0.4%，过氧化氢用量为纸浆质量的1～3%。
所述处理纸浆时，将物料混匀后在70℃～90℃温度下处理2h～4h。
本发明的有益效果是:
(1)无环境污染问题。
(2)材料用量少，实施容易。
(5)提高纸浆漂白效率明显，与常规漂白相比，纸浆漂白效率提高30%～40%，纸浆强度提高30%～40%。
具体实施方式
下面通过具体实施例对本发明作进一步详细说明，但本发明保护范围不局限于所述内容。
实施例1
本实施例一种提高纸浆漂白效率的方法，具体方法如下：在纸浆中，添加过氧化氢酶、氯化铜、4-氨基吡啶、过氧化氢对纸浆进行处理，其中过氧化氢酶用量为纸浆质量的3U/g纸浆，氯化铜用量为纸浆质量的0.2%，4-氨基吡啶用量为纸浆质量的0.1%，过氧化氢用量为纸浆质量的1%，将纸浆和添加剂混匀后在温度为70℃，处理时间为2h，与常规漂白相比，纸浆漂白效率提高30%，纸浆强度提高30%。
实施例2
本实施例一种提高纸浆漂白效率的方法，具体方法如下：在纸浆中，添加过氧化氢酶、氯化铜、4-氨基吡啶、过氧化氢对纸浆进行处理，其中过氧化氢酶用量为纸浆质量的5U/g纸浆，氯化铜用量为纸浆质量的0.5%，4-氨基吡啶用量为纸浆质量的0.3%，过氧化氢用量为纸浆质量的2%，将纸浆和添加剂混匀后在温度为80℃，处理时间为3h，与常规漂白相比，纸浆漂白效率提高35%，纸浆强度提高35%。
实施例3
本实施例一种提高纸浆漂白效率的方法，具体方法如下：在纸浆中，添加过氧化氢酶、氯化铜、4-氨基吡啶、过氧化氢对纸浆进行处理，其中过氧化氢酶用量为纸浆质量的7U/g纸浆，氯化铜用量为纸浆质量的0.3%，4-氨基吡啶用量为纸浆质量的0.4%，过氧化氢用量为纸浆质量的3%，将纸浆和添加剂混匀后在温度为90℃，处理时间为4h，与常规漂白相比，纸浆漂白效率提高40%，纸浆强度提高40%。
Claims (4)
1.一种提高纸浆漂白效率的方法，其特征在于：在过氧化氢酶、氯化铜、4-氨基吡啶存在的条件下，对纸浆进行处理。
2.根据权利要求1所述提高纸浆漂白效率的方法，其特征在于：对纸浆进行处理时添加过氧化氢。
3.根据权利要求2所述提高纸浆漂白效率的方法，其特征在于：过氧化氢酶用量为3～7U/g纸浆，氯化铜用量为纸浆质量的0.2～0.5%，4-氨基吡啶用量为纸浆质量的0.1～0.4%，过氧化氢用量为纸浆质量的1～3%。
4.根据权利要求3所述提高纸浆漂白效率的方法，其特征在于：处理纸浆时，混匀后在70℃～90℃处理2h～4h。
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| CN201710472450.4A CN107245896A (zh) | 2017-06-21 | 2017-06-21 | 一种提高纸浆漂白效率的方法 |
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| CN201710472450.4A CN107245896A (zh) | 2017-06-21 | 2017-06-21 | 一种提高纸浆漂白效率的方法 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1240008A (zh) * | 1996-12-09 | 1999-12-29 | 电化学工业有限公司（国际） | 改性、降解或漂白木质素、含木质素的材料或类似物质的多组分体系及其应用方法 |
| JP2004044006A (ja) * | 2002-07-11 | 2004-02-12 | Nippon Paper Industries Co Ltd | 漂白効率の改善方法 |
| CN101565909A (zh) * | 2009-04-14 | 2009-10-28 | 昆明理工大学 | 纸浆仿酶预处理少氯少污染漂白工艺 |
-
2017
- 2017-06-21 CN CN201710472450.4A patent/CN107245896A/zh active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1240008A (zh) * | 1996-12-09 | 1999-12-29 | 电化学工业有限公司（国际） | 改性、降解或漂白木质素、含木质素的材料或类似物质的多组分体系及其应用方法 |
| JP2004044006A (ja) * | 2002-07-11 | 2004-02-12 | Nippon Paper Industries Co Ltd | 漂白効率の改善方法 |
| CN101565909A (zh) * | 2009-04-14 | 2009-10-28 | 昆明理工大学 | 纸浆仿酶预处理少氯少污染漂白工艺 |
Non-Patent Citations (1)
| Title |
|---|
| 贾艳迪等: "硫酸盐法竹浆漂白GIF仿酶预处理最佳条件的确定", 《中国造纸》 * |
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Application publication date: 20171013 |
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