CN108560301A - A kind of solid slow-release type biological enzyme slurrying post-bleach agent and preparation method thereof - Google Patents
A kind of solid slow-release type biological enzyme slurrying post-bleach agent and preparation method thereof Download PDFInfo
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- CN108560301A CN108560301A CN201810364559.0A CN201810364559A CN108560301A CN 108560301 A CN108560301 A CN 108560301A CN 201810364559 A CN201810364559 A CN 201810364559A CN 108560301 A CN108560301 A CN 108560301A
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- 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
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- 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
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Abstract
The invention discloses a kind of solid slow-release type biological enzyme slurrying post-bleach agent, by following quality at being grouped as：20 30 parts of SODIUM PERCARBONATE, 35 45 parts of sodium perborate, 5 10 parts of sodium pyrosulfite, 15 parts of EDTA10,5 10 parts of titanium dioxide, 68 parts of magnesium sulfate, 25 parts of sodium metasilicate, 38 parts of alum, 24 parts of urea, 15 parts of sodium oxalate, 0.1 1 parts of sodium tripolyphosphate, 0.1 0.5 parts of Sodium Caseinate, 20 80 parts of water, 20 50 parts of thiourea dioxide.Also disclose the preparation method of the bleaching agent, bleaching agent prepared by this method, not only act as bleaching biological enzyme paper pulp, there can also be sterilising and enzyme inactivating to the biological enzyme not inactivated after the completion of slurrying, effectively reduce the energy consumption of factory's slurrying, the time is saved, reduces cost, and mitigate environmental protection pressure and social pressures that factory undertakes.
Description
Technical field
The invention belongs to field of papermaking, and in particular to a kind of solid slow-release type biological enzyme slurrying post-bleach agent and its preparation
Method.
Background technology
In paper technology, timber is initially treated into paper pulp.Method used by pulping process is usually directed to timber
Physical or chemical treatment, or both of these approaches are combined and are handled, so as to make timber chemical constitution slurrying skill
Art, i.e. machinery pulping and chemical pulping.Biological enzyme slurrying is also known method in this field, and for more difficult
It is also very effective in the slurrying of the timber of processing, usual biological enzyme is used for producing the higher paper pulp of intensity, because of this side
Method is minimum to being destroyed when cellulose composition in timber, it might even be possible to further decrease pulping process to cellulosic fibrous polymer structure
Destruction, to make the loss of strength of final paper product more reduce than the sulfuric acid chloride process of standard, more effectively to go
Except more lignin, while extent of the destruction of the pulp liquor to cellulose fibre is reduced, the wood formation fiber of pulping process
The dark slurry of cellulose fiber, referred to as " thick slurry ".In digestion process and not all lignin is removed, and in slurrying
In journey chemical transformation is allowed to be suitble to printing, writing and others at chromophoric group, therefore to make the lighter slightly starched
The demand of paper application, it is necessary to continue the lignin of removal remaining by delignification material is added.Therefore to association with pulp bleaching it
Before, after all chemical treatments of pulping process terminate, cooked material is typically sent in an independent spraying pot, so
A series of washing is carried out to the fiber assembly of generation again afterwards, to remove all remaining chemicals objects and soluble object
Matter（Such as lignin）.
In the prior art, the chemical treatments of a variety of different combinations, and each individual processing are used
Process is indispensable, and in order to avoid these disadvantages, paper industry, which always strives to reduce, cancels lignocellulose pulp multistage bleaching
Chlorine element used in technique and chlorine-containing compound, and many use occasions of paper pulp have to the brightness of paper pulp it is very high
It is required that this just makes these effort become increasingly complex.In order to solve the problems, such as above-mentioned both sides, a kind of drift is used in the prior art
White technique is allowed to not use the substance containing chlorine, realizes that the bleaching to paper pulp, the use of oxygen allow to this for example, by using oxygen
Waste water progress caused by technique is recycled, and the usage amount of thick element is made to greatly reduce, but uses oxygen treatments applied,
It is not a scheme being entirely satisfactory, oxygen is not such as oxygen for solving using problem encountered when chlorine element
Element is the same, is a kind of selective delignification agent, using traditional oxygen delignification method, in cellulose fibre by not
Before patient destruction, the reductions of the Ka Bo values of paper pulp is extremely limited, and denier is after the processing of oxygen delignification, in order to
Obtain the paper pulp fully bleached only is reduced so far to be removed remaining lignin using oxygen bleaching method always
The usage amount of chlorine, however, even if there is corrosive chlorine in closed-cycle operation using the chlorine of this low concentration
Compound can also reach a kind of concentration level that cannot be accepted quickly.
In order to avoid using chlorine element bleaching agent, once attempted to be removed with ozone in the bleaching of chemical sizwe above-mentioned
The lignin of those remainings, but the price of its abnormal oxidation susceptibility and costliness but limits it in ligno-cellulosic materials
Bleaching technique in further development, particularly with the processing of southern softwood, ozone and lignin react rapidly, from
And effectively reduce Kappa number, but in most cases, ozone also will to the carbohydrate containing cellulose fibre
It damages, the intensity of finished product paper pulp is made to substantially reduce.
Invention content
To solve the above-mentioned problems, the invention discloses a kind of solid slow-release type biological enzyme slurrying post-bleach agent, the drifts
White agent is without the use of chlorine element, and can produce the paper pulp of intensity qualification, while reducing environmental pollution.
A kind of solid slow-release type biological enzyme slurrying post-bleach agent, by following quality at being grouped as：SODIUM PERCARBONATE 20-30
Part, 35-45 parts of sodium perborate, 5-10 parts of sodium pyrosulfite, EDTA10-15 parts, 5-10 parts of titanium dioxide, 6-8 parts of magnesium sulfate, silicic acid
2-5 parts of sodium, 3-8 parts of alum, 2-4 parts of urea, 1-5 parts of sodium oxalate, 0.1-1 parts of sodium tripolyphosphate, 0.1-0.5 parts of Sodium Caseinate,
5-10 parts of water, 20-50 parts of thiourea dioxide.
Preferably, a kind of solid slow-release type biological enzyme slurrying post-bleach agent, by following quality at being grouped as：Percarbonic acid
26 parts of sodium, 38 parts of sodium perborate, 6 parts of sodium pyrosulfite, 12 parts of EDTA, 8 parts of titanium dioxide, 8 parts of magnesium sulfate, 3 parts of sodium metasilicate are bright
4 parts of alum, 3 parts of urea, 2 parts of sodium oxalate, 0.3 part of sodium tripolyphosphate, 0.2 part of Sodium Caseinate, 6 parts of water, 40 parts of thiourea dioxide.
A kind of preparation method of solid slow-release type biological enzyme slurrying post-bleach agent, includes the following steps：
（1）By sodium perborate, titanium dioxide, magnesium sulfate, sodium oxalate, sodium metasilicate, sodium tripolyphosphate and 1/20 quality water mix
Uniformly, comminutor is added, is granulated, the ball-shaped particle kernel that grain size is 0.5-1mm is made；
（2）SODIUM PERCARBONATE, sodium pyrosulfite, EDTA, alum, urea, Sodium Caseinate, thiourea dioxide and remaining water are mixed
Uniformly, it is put into comminutor, then by step（1）Kernel be put into and wrapped up, the bleaching agent of 1-2mm is made.
The present invention due to select the SODIUM PERCARBONATE that active oxygen reserve is high, price is relatively low be in common bleaching agent mainly at
Point with sodium perborate, thiourea dioxide etc. at subassembly, nontoxic using SODIUM PERCARBONATE, odorless, pollution-free, easy to dissolve, decontamination
The characteristics such as power is strong and its aqueous solution play the role of bleaching and sterilizing in alkalinity to be decomposed into sodium carbonate and hydrogen peroxide,
And SODIUM PERCARBONATE and other bleach compatibilities are good, and the mixed type bleaching agent being combined into has higher safe to use
Property and bleachability it is good, while being added to the adjunct ingredients such as EDTA, effectively reduce the energy consumption of factory, save the time, reduce at
This, and mitigate environmental protection pressure and social pressures that factory undertakes.
Specific implementation mode
It elaborates below to the embodiment of the present invention, the present embodiment is carried out lower based on the technical solution of the present invention
Implement, gives detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following implementation
Example.
Embodiment 1
A kind of solid slow-release type biological enzyme slurrying post-bleach agent, by following quality at being grouped as：26 parts of SODIUM PERCARBONATE crosses boron
38 parts of sour sodium, 6 parts of sodium pyrosulfite, 12 parts of EDTA, 8 parts of titanium dioxide, 8 parts of magnesium sulfate, 3 parts of sodium metasilicate, 4 parts of alum, urea 3
Part, 2 parts of sodium oxalate, 0.3 part of sodium tripolyphosphate, 0.2 part of Sodium Caseinate, 8 parts of water, 40 parts of thiourea dioxide.
A kind of preparation method of solid slow-release type biological enzyme slurrying post-bleach agent, includes the following steps：
（1）By sodium perborate, titanium dioxide, magnesium sulfate, sodium oxalate, sodium metasilicate, sodium tripolyphosphate and 1/20 quality water mix
Uniformly, comminutor is added, is granulated, the ball-shaped particle kernel that grain size is 0.5-1mm is made；
（2）SODIUM PERCARBONATE, sodium pyrosulfite, EDTA, alum, urea, Sodium Caseinate, thiourea dioxide and remaining water are mixed
Uniformly, it is put into comminutor, then by step（1）Kernel be put into and wrapped up, the bleaching agent of 1-2mm is made.
Embodiment 2
A kind of solid slow-release type biological enzyme slurrying post-bleach agent, by following quality at being grouped as：20 parts of SODIUM PERCARBONATE crosses boron
35 parts of sour sodium, 5 parts of sodium pyrosulfite, EDTA10 parts, 5 parts of titanium dioxide, 6 parts of magnesium sulfate, 2 parts of sodium metasilicate, 3 parts of alum, urea 2
Part, 1 part of sodium oxalate, 0.1 part of sodium tripolyphosphate, 0.1 part of Sodium Caseinate, 8 parts of water, 20 parts of thiourea dioxide.
The preparation method is the same as that of Example 1.
Embodiment 3
A kind of solid slow-release type biological enzyme slurrying post-bleach agent, by following quality at being grouped as：30 parts of SODIUM PERCARBONATE crosses boron
45 parts of sour sodium, 10 parts of sodium pyrosulfite, EDTA15 parts, 10 parts of titanium dioxide, 8 parts of magnesium sulfate, 5 parts of sodium metasilicate, 8 parts of alum, urea 4
Part, 5 parts of sodium oxalate, 1 part of sodium tripolyphosphate, 0.5 part of Sodium Caseinate, 8 parts of water, 50 parts of thiourea dioxide.
The preparation method is the same as that of Example 1.
Comparative example 1
A kind of biological enzyme slurrying post-bleach agent, by following quality at being grouped as：26 parts of SODIUM PERCARBONATE, 38 parts of sodium perborate,
6 parts of sodium thiosulfate, 3 parts of sodium sulphate, 5 parts of tetraacetyl ethylene diamine, 100 parts of water.Preparation method is to be mixed directly that water is made
The bleaching agent of solution.
Comparative example 2
A kind of solid slow-release type biological enzyme slurrying post-bleach agent, by following quality at being grouped as：26 parts of SODIUM PERCARBONATE crosses boron
38 parts of sour sodium, 6 parts of sodium pyrosulfite, 3 parts of sodium metasilicate, 12 parts of EDTA, 6 parts of water.
Preparation method is to be mixed directly, and is granulated, bleach particle is made.
Comparative example 3
A kind of biological enzyme slurrying post-bleach agent, by following quality at being grouped as：26 parts of SODIUM PERCARBONATE, 38 parts of sodium perborate,
6 parts of sodium pyrosulfite, 12 parts of EDTA, 8 parts of titanium dioxide, 8 parts of magnesium sulfate, 3 parts of sodium metasilicate, 4 parts of alum, 3 parts of urea, sodium oxalate 2
Part, 0.3 part of sodium tripolyphosphate, 0.2 part of Sodium Caseinate, 100 parts of water, 40 parts of thiourea dioxide.
The ingredient of above-mentioned mass parts is uniformly mixed to the bleaching agent that aqueous solution is made.
Bleaching agent made of will be above-mentioned presses equal amount（Solid point in liquid bleach is identical as the amount of solid bleaching）
It is added in paper-making pulping process, the performance for the bleached pulp that obtains that treated：
Claims (3)
1. a kind of solid slow-release type biological enzyme slurrying post-bleach agent, which is characterized in that by following quality at being grouped as：Cross carbon
Sour sodium 20-30 parts, 35-45 parts of sodium perborate, 5-10 parts of sodium pyrosulfite, EDTA10-15 parts, 5-10 parts of titanium dioxide, magnesium sulfate
6-8 parts, 2-5 parts of sodium metasilicate, 3-8 parts of alum, 2-4 parts of urea, 1-5 parts of sodium oxalate, 0.1-1 parts of sodium tripolyphosphate, Sodium Caseinate
0.1-0.5 parts, 20-80 parts of water, 20-50 parts of thiourea dioxide.
2. a kind of solid slow-release type biological enzyme slurrying post-bleach agent according to claim 1, which is characterized in that by following
Quality at being grouped as：26 parts of SODIUM PERCARBONATE, 38 parts of sodium perborate, 6 parts of sodium pyrosulfite, 12 parts of EDTA, 8 parts of titanium dioxide, sulphur
8 parts of sour magnesium, 3 parts of sodium metasilicate, 4 parts of alum, 3 parts of urea, 2 parts of sodium oxalate, 0.3 part of sodium tripolyphosphate, 0.2 part of Sodium Caseinate, water 8
Part, 40 parts of thiourea dioxide.
3. a kind of preparation method of biological enzyme slurrying post-bleach agent as claimed in claim 1 or 2, which is characterized in that including with
Lower step：
（1）By sodium perborate, titanium dioxide, magnesium sulfate, sodium oxalate, sodium metasilicate, sodium tripolyphosphate and 1/20 quality water mix
Uniformly, comminutor is added, is granulated, the ball-shaped particle kernel that grain size is 0.5-1mm is made；
（2）SODIUM PERCARBONATE, sodium pyrosulfite, EDTA, alum, urea, Sodium Caseinate, thiourea dioxide and remaining water are mixed
Uniformly, it is put into comminutor, then by step（1）Kernel be put into and wrapped up, the bleaching agent of 1-2mm is made.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810364559.0A CN108560301B (en) | 2018-04-23 | 2018-04-23 | Solid slow-release type bio-enzyme pulping supplementary bleaching agent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810364559.0A CN108560301B (en) | 2018-04-23 | 2018-04-23 | Solid slow-release type bio-enzyme pulping supplementary bleaching agent and preparation method thereof |
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| Publication Number | Publication Date |
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| CN108560301A true CN108560301A (en) | 2018-09-21 |
| CN108560301B CN108560301B (en) | 2020-09-15 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1337488A (en) * | 2000-08-11 | 2002-02-27 | 青岛大学 | Pretreating biological enzyme process for natural cellulosic fibre |
| CN1729281A (en) * | 2002-12-20 | 2006-02-01 | 德古萨股份公司 | Liquid detergent and cleaning agent composition |
| CN101189184A (en) * | 2005-06-01 | 2008-05-28 | 索尔维公司 | Coated sodium percarbonate particles, process for their production, their use and detergent compositions containing them |
| CN102642226A (en) * | 2012-04-12 | 2012-08-22 | 广东省宜华木业股份有限公司 | Combined bleaching agent for timber |
| CN102899951A (en) * | 2012-10-19 | 2013-01-30 | 华南理工大学 | Method for cleanly bleaching chemimechanical pulp |
| CN103482579A (en) * | 2013-01-10 | 2014-01-01 | 浙江金科过氧化物股份有限公司 | Preparation process for rapidly-dissolving granular sodium percarbonate |
| US20140231034A1 (en) * | 2011-09-30 | 2014-08-21 | Arkema France | Enzymatic pretreatment of wood in a method for producing mechanical paper pulp |
| CN104673507A (en) * | 2013-11-27 | 2015-06-03 | 大连林桥科技有限公司 | Energy saving bleaching agent |
-
2018
- 2018-04-23 CN CN201810364559.0A patent/CN108560301B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1337488A (en) * | 2000-08-11 | 2002-02-27 | 青岛大学 | Pretreating biological enzyme process for natural cellulosic fibre |
| CN1729281A (en) * | 2002-12-20 | 2006-02-01 | 德古萨股份公司 | Liquid detergent and cleaning agent composition |
| CN101189184A (en) * | 2005-06-01 | 2008-05-28 | 索尔维公司 | Coated sodium percarbonate particles, process for their production, their use and detergent compositions containing them |
| US20140231034A1 (en) * | 2011-09-30 | 2014-08-21 | Arkema France | Enzymatic pretreatment of wood in a method for producing mechanical paper pulp |
| CN102642226A (en) * | 2012-04-12 | 2012-08-22 | 广东省宜华木业股份有限公司 | Combined bleaching agent for timber |
| CN102899951A (en) * | 2012-10-19 | 2013-01-30 | 华南理工大学 | Method for cleanly bleaching chemimechanical pulp |
| CN103482579A (en) * | 2013-01-10 | 2014-01-01 | 浙江金科过氧化物股份有限公司 | Preparation process for rapidly-dissolving granular sodium percarbonate |
| CN104673507A (en) * | 2013-11-27 | 2015-06-03 | 大连林桥科技有限公司 | Energy saving bleaching agent |
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| CN108560301B (en) | 2020-09-15 |
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