CN109024047A - One kind removing metal paper pulp manufacturing technique - Google Patents
One kind removing metal paper pulp manufacturing technique Download PDFInfo
- Publication number
- CN109024047A CN109024047A CN201810879297.1A CN201810879297A CN109024047A CN 109024047 A CN109024047 A CN 109024047A CN 201810879297 A CN201810879297 A CN 201810879297A CN 109024047 A CN109024047 A CN 109024047A
- Authority
- CN
- China
- Prior art keywords
- paper pulp
- slurries
- manufacturing technique
- weight ratio
- deionized water
- Prior art date
- Legal status (The legal status 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 status listed.)
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Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
-
- 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
- D21C9/166—Bleaching ; Apparatus therefor with per compounds with peracids
-
- 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
- D21C9/18—De-watering; Elimination of cooking or pulp-treating liquors from the pulp
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/02—Straining or screening the pulp
Abstract
The present invention discloses one kind and removes metal paper pulp manufacturing technique, the following steps are included: 1) paper pulp is poured into agitator tank, then the deionized water of identical weight is added and is stirred, wherein the mixing speed of stir process is 100-120r/min, mixing time is 1-3h, slurries are made, it is spare；2) granular activated carbon and sepiolite fibre is added made from the step 1) in slurries; then it is stirred; wherein mixing speed is 10-20r/min; mixing time is 30-50min; the weight ratio of granular activated carbon, sepiolite fibre and slurries is 0.2-0.3:0.1-0.15:1, filters out granular activated carbon, then carries out centrifugal dehydration treatment to slurries; by the 15-25wt% of water content drop, wet mixed pulp is made；3) calcium acetate is first added in wet paper pulp obtained into step 2 and magnesium acetate is stirred 30min；This removes metal paper pulp manufacturing technique high financial profit.
Description
Technical field
The present invention relates to one kind to remove metal paper pulp manufacturing technique.
Background technique
Metal ion in paper pulp seriously affects bleaching effect.Metal ion makes the decomposition of agent containing oxygen bleaching, wherein generating
Free radical the quality of bleached pulp can be brought a negative impact, therefore, often must be before bleaching using a large amount of EDTA, DTPA etc.
Chelating agent carries out chelation treatment, to reduce or remove the heavy metal ion in paper pulp.The chelating agents such as EDTA, DTPA enter useless therewith
In water, and the price of the chelating agents such as EDTA, DTPA is higher, and economic benefit is lower.
Summary of the invention
Metal paper pulp manufacturing technique is removed the technical problem to be solved in the present invention is to provide a kind of high financial profit.
To solve the above problems, the present invention adopts the following technical scheme:
One kind removing metal paper pulp manufacturing technique, comprising the following steps:
1) paper pulp for remaining metal component is poured into agitator tank, the deionized water of identical weight is then added and is stirred
Processing is mixed, wherein the mixing speed of stir process is 100-120r/min, mixing time 1-3h, and slurries are made, spare；
2) granular activated carbon and sepiolite fibre is added made from the step 1) in slurries, is then stirred, wherein stirring
Mixing speed is 10-20r/min, and the weight ratio of mixing time 30-50min, granular activated carbon, sepiolite fibre and slurries are
0.2-0.3:0.1-0.15:1 filters out granular activated carbon, then carries out centrifugal dehydration treatment to slurries, it is dropped in water content
Wet mixed pulp is made in 15-25wt%；
3) calcium acetate is first added in wet paper pulp obtained into step 2 and magnesium acetate is stirred 30min, then again plus
Enter disodium ethylene diamine tetraacetate and deionized water pre-processed, wherein disodium ethylene diamine tetraacetate, calcium acetate, magnesium acetate and
The weight ratio of wet paper pulp is 0.0009:0.00075:0.0008:1, and deionized water and the weight ratio of wet paper pulp are
0.8:1, the control of pretreated temperature is at 55-65 DEG C, and pretreated mixing speed is 15-25r/min, time 60-90min, in advance
After treatment stands 20min, then picks up the paper pulp for removing metal ion of the water surface, and the mixed paper for removing metal ion is made
Slurry.
4) mixed pulp for removing metal ion made from step 3) is poured into air flow dryer and carries out drying and processing, made
Obtain dry mixed pulp；
5) composite fibre made from step 4) is screened, paper is made in sepiolite fibre of the removal blending on plant fiber
Slurry.
Preferably, also including that paper pulp progress Peracetic acid bleaching is made to step 5) in step 6).
Preferably, the specific steps of the Peracetic acid bleaching are as follows: paper pulp is poured into bleaching tank, then according to
Secondary addition deionized water, Peracetic acid and diethylene triamine pentacetic acid (DTPA), are then stirred, wherein Peracetic acid and two
The weight ratio of ethylene pentaacetic acid and paper is 0.014:0.008:1, and after having handled, then paper pulp is dried in filtering.
Preferably, the deionized water of the Peracetic acid bleaching and the weight ratio of paper pulp are 10:1.
Preferably, the mixing speed of the stir process is 10-20r/min, mixing time 90-120min.
Preferably, temperature is maintained at 55-65 DEG C in bleaching tank when the stir process.
The invention has the benefit that preliminary treatment is carried out by using granular activated carbon and sepiolite fibre first,
A large amount of metal impurities are adsorbed by granular activated carbon and sepiolite fibre, then are contained using chelating agent to remaining metal component
Paper pulp is handled, and the usage amount of the chelating agents such as EDTA, DTPA can be effectively reduced, good in economic efficiency, and seed activity
Charcoal and sepiolite fibre can recycle the filler as other industry.
Specific embodiment
Technical solution of the present invention is described below, it is clear that described embodiment is only present invention a part
Embodiment, instead of all the embodiments, to those skilled in the art, in the premise not made the creative labor
Under, other embodiments can also be obtained according to these embodiments.
Embodiment 1
One kind removing metal paper pulp manufacturing technique, comprising the following steps:
1) paper pulp for remaining metal component is poured into agitator tank, the deionized water of identical weight is then added and is stirred
Processing is mixed, wherein the mixing speed of stir process is 100r/min, mixing time 1h, and slurries are made, spare；
2) granular activated carbon and sepiolite fibre is added made from the step 1) in slurries, is then stirred, wherein stirring
Mixing speed is 10r/min, mixing time 30min, and the weight ratio of granular activated carbon, sepiolite fibre and slurries is 0.2:0.1:
1, granular activated carbon is filtered out, centrifugal dehydration treatment then is carried out to slurries, by the 15wt% of water content drop, is made wet and mixes
Combined paper slurry；
3) calcium acetate is first added in wet paper pulp obtained into step 2 and magnesium acetate is stirred 30min, then again plus
Enter disodium ethylene diamine tetraacetate and deionized water pre-processed, wherein disodium ethylene diamine tetraacetate, calcium acetate, magnesium acetate and
The weight ratio of wet paper pulp is 0.0009:0.00075:0.0008:1, and deionized water and the weight ratio of wet paper pulp are
0.8:1, at 55 DEG C, pretreated mixing speed is 15r/min, time 60min, after pretreatment for pretreated temperature control
20min is stood, then picks up the paper pulp for removing metal ion of the water surface, the mixed pulp for removing metal ion is made.
4) mixed pulp for removing metal ion made from step 3) is poured into air flow dryer and carries out drying and processing, made
Obtain dry mixed pulp；
5) composite fibre made from step 4) is screened, paper is made in sepiolite fibre of the removal blending on plant fiber
Slurry.
It in the present embodiment, also include that paper pulp progress Peracetic acid bleaching is made to step 5) in step 6).
In the present embodiment, the specific steps of the Peracetic acid bleaching are as follows: paper pulp is poured into bleaching tank, so
After sequentially add deionized water, Peracetic acid and diethylene triamine pentacetic acid (DTPA), be then stirred, wherein Peracetic acid
It is 0.014:0.008:1 with the weight ratio of diethylene triamine pentacetic acid (DTPA) and paper, after having handled, filtering, then drying paper pulp is
It can.
In the present embodiment, the deionized water of the Peracetic acid bleaching and the weight ratio of paper pulp are 10:1.
In the present embodiment, the mixing speed of the stir process is 10r/min, mixing time 90min.
In the present embodiment, temperature is maintained at 55 DEG C in bleaching tank when the stir process.
Embodiment 2
One kind removing metal paper pulp manufacturing technique, comprising the following steps:
1) paper pulp for remaining metal component is poured into agitator tank, the deionized water of identical weight is then added and is stirred
Processing is mixed, wherein the mixing speed of stir process is 120r/min, mixing time 1h, and slurries are made, spare；
2) granular activated carbon and sepiolite fibre is added made from the step 1) in slurries, is then stirred, wherein stirring
Mixing speed is 20r/min, mixing time 50min, and the weight ratio of granular activated carbon, sepiolite fibre and slurries is 0.3:
0.15:1 filters out granular activated carbon, then carries out centrifugal dehydration treatment to slurries, by the 25wt% of water content drop, is made wet
Mixed pulp；
3) calcium acetate is first added in wet paper pulp obtained into step 2 and magnesium acetate is stirred 30min, then again plus
Enter disodium ethylene diamine tetraacetate and deionized water pre-processed, wherein disodium ethylene diamine tetraacetate, calcium acetate, magnesium acetate and
The weight ratio of wet paper pulp is 0.0009:0.00075:0.0008:1, and deionized water and the weight ratio of wet paper pulp are
0.8:1, at 65 DEG C, pretreated mixing speed is 25r/min, time 90min, after pretreatment for pretreated temperature control
20min is stood, then picks up the paper pulp for removing metal ion of the water surface, the mixed pulp for removing metal ion is made.
4) mixed pulp for removing metal ion made from step 3) is poured into air flow dryer and carries out drying and processing, made
Obtain dry mixed pulp；
5) composite fibre made from step 4) is screened, paper is made in sepiolite fibre of the removal blending on plant fiber
Slurry.
In the present embodiment, described includes that paper pulp progress Peracetic acid bleaching is made to step 5) in step 6).
In the present embodiment, the specific steps of the Peracetic acid bleaching are as follows: paper pulp is poured into bleaching tank, so
After sequentially add deionized water, Peracetic acid and diethylene triamine pentacetic acid (DTPA), be then stirred, wherein Peracetic acid
It is 0.014:0.008:1 with the weight ratio of diethylene triamine pentacetic acid (DTPA) and paper, after having handled, filtering, then drying paper pulp is
It can.
In the present embodiment, the deionized water of the Peracetic acid bleaching and the weight ratio of paper pulp are 10:1.
In the present embodiment, the mixing speed of the stir process is 20r/min, mixing time 120min.
In the present embodiment, temperature is maintained at 65 DEG C in bleaching tank when the stir process.
Embodiment 3
One kind removing metal paper pulp manufacturing technique, comprising the following steps:
1) paper pulp for remaining metal component is poured into agitator tank, the deionized water of identical weight is then added and is stirred
Processing is mixed, wherein the mixing speed of stir process is 110r/min, mixing time 2h, and slurries are made, spare；
2) granular activated carbon and sepiolite fibre is added made from the step 1) in slurries, is then stirred, wherein stirring
Mixing speed is 15r/min, mixing time 40min, and the weight ratio of granular activated carbon, sepiolite fibre and slurries is 0.25:
0.13:1 filters out granular activated carbon, then carries out centrifugal dehydration treatment to slurries, by the 20wt% of water content drop, is made wet
Mixed pulp；
3) calcium acetate is first added in wet paper pulp obtained into step 2 and magnesium acetate is stirred 30min, then again plus
Enter disodium ethylene diamine tetraacetate and deionized water pre-processed, wherein disodium ethylene diamine tetraacetate, calcium acetate, magnesium acetate and
The weight ratio of wet paper pulp is 0.0009:0.00075:0.0008:1, and deionized water and the weight ratio of wet paper pulp are
0.8:1, at 60 DEG C, pretreated mixing speed is 20r/min, time 80min, after pretreatment for pretreated temperature control
20min is stood, then picks up the paper pulp for removing metal ion of the water surface, the mixed pulp for removing metal ion is made.
4) mixed pulp for removing metal ion made from step 3) is poured into air flow dryer and carries out drying and processing, made
Obtain dry mixed pulp；
5) composite fibre made from step 4) is screened, paper is made in sepiolite fibre of the removal blending on plant fiber
Slurry.
In the present embodiment, described includes that paper pulp progress Peracetic acid bleaching is made to step 5) in step 6).
In the present embodiment, the specific steps of the Peracetic acid bleaching are as follows: paper pulp is poured into bleaching tank, so
After sequentially add deionized water, Peracetic acid and diethylene triamine pentacetic acid (DTPA), be then stirred, wherein Peracetic acid
It is 0.014:0.008:1 with the weight ratio of diethylene triamine pentacetic acid (DTPA) and paper, after having handled, filtering, then drying paper pulp is
It can.
In the present embodiment, the deionized water of the Peracetic acid bleaching and the weight ratio of paper pulp are 10:1.
In the present embodiment, the mixing speed of the stir process is 15r/min, mixing time 100min.
In the present embodiment, temperature is maintained at 60 DEG C in bleaching tank when the stir process.
Embodiment 4
One kind removing metal paper pulp manufacturing technique, comprising the following steps:
1) paper pulp for remaining metal component is poured into agitator tank, the deionized water of identical weight is then added and is stirred
Processing is mixed, wherein the mixing speed of stir process is 120r/min, mixing time 2h, and slurries are made, spare；
2) granular activated carbon and sepiolite fibre is added made from the step 1) in slurries, is then stirred, wherein stirring
Mixing speed is 17r/min, mixing time 45min, and the weight ratio of granular activated carbon, sepiolite fibre and slurries is 0.25:
0.15:1 filters out granular activated carbon, then carries out centrifugal dehydration treatment to slurries, by the 20wt% of water content drop, is made wet
Mixed pulp；
3) calcium acetate is first added in wet paper pulp obtained into step 2 and magnesium acetate is stirred 30min, then again plus
Enter disodium ethylene diamine tetraacetate and deionized water pre-processed, wherein disodium ethylene diamine tetraacetate, calcium acetate, magnesium acetate and
The weight ratio of wet paper pulp is 0.0009:0.00075:0.0008:1, and deionized water and the weight ratio of wet paper pulp are
0.8:1, at 65 DEG C, pretreated mixing speed is 15r/min, time 80min, after pretreatment for pretreated temperature control
20min is stood, then picks up the paper pulp for removing metal ion of the water surface, the mixed pulp for removing metal ion is made.
4) mixed pulp for removing metal ion made from step 3) is poured into air flow dryer and carries out drying and processing, made
Obtain dry mixed pulp；
5) composite fibre made from step 4) is screened, paper is made in sepiolite fibre of the removal blending on plant fiber
Slurry.
In the present embodiment, described includes that paper pulp progress Peracetic acid bleaching is made to step 5) in step 6).
In the present embodiment, the specific steps of the Peracetic acid bleaching are as follows: paper pulp is poured into bleaching tank, so
After sequentially add deionized water, Peracetic acid and diethylene triamine pentacetic acid (DTPA), be then stirred, wherein Peracetic acid
It is 0.014:0.008:1 with the weight ratio of diethylene triamine pentacetic acid (DTPA) and paper, after having handled, filtering, then drying paper pulp is
It can.
In the present embodiment, the deionized water of the Peracetic acid bleaching and the weight ratio of paper pulp are 10:1.
In the present embodiment, the mixing speed of the stir process is 17r/min, mixing time 120min.
In the present embodiment, temperature is maintained at 58 DEG C in bleaching tank when the stir process.
The invention has the benefit that preliminary treatment is carried out by using granular activated carbon and sepiolite fibre first,
A large amount of metal impurities are adsorbed by granular activated carbon and sepiolite fibre, then are contained using chelating agent to remaining metal component
Paper pulp is handled, and the usage amount of the chelating agents such as EDTA, DTPA can be effectively reduced, good in economic efficiency, and seed activity
Charcoal and sepiolite fibre can recycle the filler as other industry.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
The change or replacement expected without creative work, should be covered by the protection scope of the present invention.
Claims (6)
1. one kind removes metal paper pulp manufacturing technique, it is characterised in that: the following steps are included:
1) paper pulp for remaining metal component is poured into agitator tank, the deionized water of identical weight is then added and is stirred
Processing is mixed, wherein the mixing speed of stir process is 100-120r/min, mixing time 1-3h, and slurries are made, spare；
2) granular activated carbon and sepiolite fibre is added made from the step 1) in slurries, is then stirred, wherein stirring
Mixing speed is 10-20r/min, and the weight ratio of mixing time 30-50min, granular activated carbon, sepiolite fibre and slurries are
0.2-0.3:0.1-0.15:1 filters out granular activated carbon, then carries out centrifugal dehydration treatment to slurries, it is dropped in water content
Wet mixed pulp is made in 15-25wt%；
3) calcium acetate is first added in wet paper pulp obtained into step 2 and magnesium acetate is stirred 30min, then again plus
Enter disodium ethylene diamine tetraacetate and deionized water pre-processed, wherein disodium ethylene diamine tetraacetate, calcium acetate, magnesium acetate and
The weight ratio of wet paper pulp is 0.3:0.15:0.2:1, and the weight ratio of deionized water and wet paper pulp is 0.8:1, pretreatment
Temperature control at 55-65 DEG C, pretreated mixing speed be 15-25r/min, time 60-90min, it is quiet after pretreatment
20min is set, then picks up the paper pulp for removing metal ion of the water surface, the mixed pulp for removing metal ion is made；
4) mixed pulp for removing metal ion made from step 3) is poured into air flow dryer and carries out drying and processing, be made dry
Dry mixed pulp；
5) composite fibre made from step 4) is screened, paper is made in sepiolite fibre of the removal blending on plant fiber
Slurry.
2. one kind according to claim 1 removes metal paper pulp manufacturing technique, it is characterised in that: also include step 6) to step
It is rapid that paper pulp progress Peracetic acid bleaching 5) is made.
3. one kind according to claim 2 removes metal paper pulp manufacturing technique, it is characterised in that: at the Peracetic acid bleaching
The specific steps of reason are as follows: paper pulp is poured into bleaching tank, then sequentially adds deionized water, Peracetic acid and diethylenetriamine
Then pentaacetic acid is stirred, wherein Peracetic acid and the weight ratio of diethylene triamine pentacetic acid (DTPA) and paper are 0.014:
0.008:1, after having handled, then paper pulp is dried in filtering.
4. one kind according to claim 3 removes metal paper pulp manufacturing technique, it is characterised in that: at the Peracetic acid bleaching
The deionized water of reason and the weight ratio of paper pulp are 10:1.
5. one kind according to claim 3 removes metal paper pulp manufacturing technique, it is characterised in that: the stirring of the stir process
Speed is 10-20r/min, mixing time 90-120min.
6. one kind according to claim 5 removes metal paper pulp manufacturing technique, it is characterised in that: bleached when the stir process
Temperature is maintained at 55-65 DEG C in tank.
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| CN201810879297.1A CN109024047A (en) | 2018-08-03 | 2018-08-03 | One kind removing metal paper pulp manufacturing technique |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810879297.1A CN109024047A (en) | 2018-08-03 | 2018-08-03 | One kind removing metal paper pulp manufacturing technique |
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ID=64648410
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Citations (7)
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|---|---|---|---|---|
| CN101575820A (en) * | 2009-06-08 | 2009-11-11 | 昆明理工大学 | Method for removing metal ions of paper pulp and bleaching |
| CN101642239A (en) * | 2009-08-20 | 2010-02-10 | 华南理工大学 | Bleaching method of soy sauce residues |
| EP2194103A1 (en) * | 2008-12-04 | 2010-06-09 | Omya Development Ag | Process for manufacturing calcium carbonate materials having a particle surface with improved adsorption properties |
| CN103011547A (en) * | 2012-12-21 | 2013-04-03 | 湖南清和污泥资源利用有限公司 | Method for treating sludge |
| CN104445556A (en) * | 2014-12-12 | 2015-03-25 | 天长市飞龙金属制品有限公司 | Efficient sewage treatment agent |
| CN204625735U (en) * | 2015-04-22 | 2015-09-09 | 江西科技学院 | A kind of ore deposit waste residue recovery and processing system |
| CN108640345A (en) * | 2018-05-21 | 2018-10-12 | 尤清珠 | A kind of heavy-metal waste water treatment device |
-
2018
- 2018-08-03 CN CN201810879297.1A patent/CN109024047A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2194103A1 (en) * | 2008-12-04 | 2010-06-09 | Omya Development Ag | Process for manufacturing calcium carbonate materials having a particle surface with improved adsorption properties |
| CN101575820A (en) * | 2009-06-08 | 2009-11-11 | 昆明理工大学 | Method for removing metal ions of paper pulp and bleaching |
| CN101642239A (en) * | 2009-08-20 | 2010-02-10 | 华南理工大学 | Bleaching method of soy sauce residues |
| CN103011547A (en) * | 2012-12-21 | 2013-04-03 | 湖南清和污泥资源利用有限公司 | Method for treating sludge |
| CN104445556A (en) * | 2014-12-12 | 2015-03-25 | 天长市飞龙金属制品有限公司 | Efficient sewage treatment agent |
| CN204625735U (en) * | 2015-04-22 | 2015-09-09 | 江西科技学院 | A kind of ore deposit waste residue recovery and processing system |
| CN108640345A (en) * | 2018-05-21 | 2018-10-12 | 尤清珠 | A kind of heavy-metal waste water treatment device |
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Application publication date: 20181218 |