CN109024033A - A kind of pulping process using high strong brine as digestion media - Google Patents
A kind of pulping process using high strong brine as digestion media Download PDFInfo
- Publication number
- CN109024033A CN109024033A CN201810872785.XA CN201810872785A CN109024033A CN 109024033 A CN109024033 A CN 109024033A CN 201810872785 A CN201810872785 A CN 201810872785A CN 109024033 A CN109024033 A CN 109024033A
- Authority
- CN
- China
- Prior art keywords
- strong brine
- high strong
- added
- pulping process
- slurry
- 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.)
- Granted
Links
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 title claims abstract description 109
- 239000012267 brine Substances 0.000 title claims abstract description 108
- 238000000034 method Methods 0.000 title claims abstract description 64
- 238000004537 pulping Methods 0.000 title claims abstract description 49
- 230000029087 digestion Effects 0.000 title claims abstract description 40
- 238000010411 cooking Methods 0.000 claims abstract description 46
- 239000002002 slurry Substances 0.000 claims abstract description 46
- 239000002657 fibrous material Substances 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000003513 alkali Substances 0.000 claims abstract description 34
- 238000009835 boiling Methods 0.000 claims abstract description 33
- 239000003054 catalyst Substances 0.000 claims abstract description 30
- 239000002351 wastewater Substances 0.000 claims abstract description 21
- 238000012545 processing Methods 0.000 claims abstract description 19
- 239000013535 sea water Substances 0.000 claims abstract description 15
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical group [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 69
- 241000196324 Embryophyta Species 0.000 claims description 49
- 230000001376 precipitating effect Effects 0.000 claims description 41
- 239000003153 chemical reaction reagent Substances 0.000 claims description 39
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 19
- 239000011734 sodium Substances 0.000 claims description 19
- 229910052708 sodium Inorganic materials 0.000 claims description 19
- 239000010902 straw Substances 0.000 claims description 17
- 239000002994 raw material Substances 0.000 claims description 16
- 150000003839 salts Chemical class 0.000 claims description 14
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 14
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 12
- 235000014676 Phragmites communis Nutrition 0.000 claims description 10
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 claims description 10
- 150000004056 anthraquinones Chemical group 0.000 claims description 10
- 239000006228 supernatant Substances 0.000 claims description 10
- 238000010792 warming Methods 0.000 claims description 10
- 239000012535 impurity Substances 0.000 claims description 9
- 244000025254 Cannabis sativa Species 0.000 claims description 8
- 238000000605 extraction Methods 0.000 claims description 6
- 238000004062 sedimentation Methods 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 240000006394 Sorghum bicolor Species 0.000 claims description 5
- 235000015505 Sorghum bicolor subsp. bicolor Nutrition 0.000 claims description 5
- 235000011684 Sorghum saccharatum Nutrition 0.000 claims description 5
- 244000062793 Sorghum vulgare Species 0.000 claims description 5
- 235000021307 Triticum Nutrition 0.000 claims description 5
- 235000006886 Zingiber officinale Nutrition 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 5
- 235000008397 ginger Nutrition 0.000 claims description 5
- 235000019713 millet Nutrition 0.000 claims description 5
- 239000013049 sediment Substances 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 240000007594 Oryza sativa Species 0.000 claims description 4
- 235000007164 Oryza sativa Nutrition 0.000 claims description 4
- 240000008042 Zea mays Species 0.000 claims description 4
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 4
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 4
- 235000005822 corn Nutrition 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 235000009566 rice Nutrition 0.000 claims description 4
- 239000010907 stover Substances 0.000 claims description 4
- 229920002472 Starch Polymers 0.000 claims description 2
- 235000019698 starch Nutrition 0.000 claims description 2
- 239000008107 starch Substances 0.000 claims description 2
- 244000098338 Triticum aestivum Species 0.000 claims 1
- 244000273928 Zingiber officinale Species 0.000 claims 1
- 238000004073 vulcanization Methods 0.000 claims 1
- 238000005406 washing Methods 0.000 claims 1
- 239000008235 industrial water Substances 0.000 abstract description 3
- 239000000123 paper Substances 0.000 description 22
- 230000000052 comparative effect Effects 0.000 description 13
- 229920002401 polyacrylamide Polymers 0.000 description 10
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 9
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 9
- 239000011575 calcium Substances 0.000 description 9
- 229910052791 calcium Inorganic materials 0.000 description 9
- 239000011777 magnesium Substances 0.000 description 9
- 229910052749 magnesium Inorganic materials 0.000 description 9
- 239000013505 freshwater Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 8
- 239000000470 constituent Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 229920005610 lignin Polymers 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000012216 screening Methods 0.000 description 5
- 241001349804 Juncus alpinoarticulatus Species 0.000 description 4
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 4
- 241000209140 Triticum Species 0.000 description 4
- 241000234314 Zingiber Species 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000010841 municipal wastewater Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 2
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 2
- 229910001424 calcium ion Inorganic materials 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 229910001425 magnesium ion Inorganic materials 0.000 description 2
- 235000019341 magnesium sulphate Nutrition 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000001223 reverse osmosis Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241001474374 Blennius Species 0.000 description 1
- 125000000030 D-alanine group Chemical group [H]N([H])[C@](C([H])([H])[H])(C(=O)[*])[H] 0.000 description 1
- 241000274582 Pycnanthus angolensis Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011111 cardboard Substances 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- XCJXQCUJXDUNDN-UHFFFAOYSA-N chlordene Chemical compound C12C=CCC2C2(Cl)C(Cl)=C(Cl)C1(Cl)C2(Cl)Cl XCJXQCUJXDUNDN-UHFFFAOYSA-N 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000003653 coastal water Substances 0.000 description 1
- GFHNAMRJFCEERV-UHFFFAOYSA-L cobalt chloride hexahydrate Chemical compound O.O.O.O.O.O.[Cl-].[Cl-].[Co+2] GFHNAMRJFCEERV-UHFFFAOYSA-L 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000011033 desalting Methods 0.000 description 1
- 210000000630 fibrocyte Anatomy 0.000 description 1
- 230000003311 flocculating effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- POZPGRADIOPGIR-UHFFFAOYSA-N phenanthrene-1,4-dione Chemical group C1=CC2=CC=CC=C2C2=C1C(=O)C=CC2=O POZPGRADIOPGIR-UHFFFAOYSA-N 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- NDBYXKQCPYUOMI-UHFFFAOYSA-N platinum(4+) Chemical compound [Pt+4] NDBYXKQCPYUOMI-UHFFFAOYSA-N 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000012360 testing method Methods 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
- D21C3/222—Use of compounds accelerating the pulping processes
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
Abstract
The pulping process that the present invention provides a kind of using high strong brine as digestion media includes the following steps: that flocculant is added into high strong brine, settles, then alkali is added thereto, is uniformly mixed, obtains cooking liquor；Plant fiber material is added in cooking liquor, then catalyst is added thereto, is uniformly mixed, mixed liquor is heated up boiling, the black liquor in slurry is extracted, obtains the black liquor and target slurry.Pulping process of the high strong brine of the present invention as digestion media, can make full use of the water resources such as seawater, inland bitter, avoid competing with resident living water and other industrial waters etc.；The high-salt wastewater that RO processing technique can also be generated is used, and has both solved the water resources problems of pulping and paper-making, while also solving the waste water handling problem of RO processing technique.
Description
Technical field
The invention belongs to pulping and paper-making fields, specifically, the present invention relates to one kind using high strong brine as digestion media
Pulping process.
Background technique
It is counted according to Ministry of Environmental Protection, China's paper industry water total amount in 2015 is 118.35 hundred million tons, wherein newly
Fresh water is 28.98 hundred million tons, accounts for the 7.5% of industrial total consumption fresh water amount.The flood tide consumption of water resource has become limitation system
One bottleneck of pulp and paper industry development, many large size pulping and paper-making projects are all limited because water demand amount is excessively high
System, some coastal water-deficient regions of China have limited to enterprises in pulp and paper industry and provide fresh water.
In addition to the consumption of water resource, the waste water that pulp and paper industry generates is also the big problem for restricting its development.Slurrying
Paper industry wastewater discharge in 2015 is 23.67 hundred million tons, accounts for the 13.0% of national industrial wastewater total release.Waste discharge
Middle COD (COD) is 33.5 ten thousand tons, accounts for the 13.1% of national industry COD total release.Paper-making effluent is by normal
After the tertiary treatment of rule, indices can achieve the existing emission requests at different levels of country, and the form row drained in addition
It puts into wetland or river.But some soluble-salts and organic pollutant are also remained in outer draining, such as ammonia nitrogen, salt and residual
COD still can cause environmental pollution.
With the improvement of people ' s living standards and industry and commerce continues to develop, and the mankind constantly add the consumption of water resource
Play, in the near future, it is contemplated that the water resource supply of pulping and paper-making industry will become more nervous while used
The water quality of water also can constantly deteriorate.In addition, as the requirement to environmental protection increasingly improves, at that time to pulping and paper-making industry
Wastewater discharge standard will become more harsh.In terms of these, new use water source is opened up for pulp and paper industry,
The reclamation rate for improving paper-making effluent simultaneously, has become the urgent need of paper-making industry.
Source using seawater and inland bitter as paper-making pulping water can then have following both sides advantage:
1) abundance.On earth, the area of ocean substantially exceeds the area on land, and seawater is almost inexhaustible use
It is inexhaustible, and the coastal land coastline in China be up to 18400km, island coastline be up to 14000km, utilize seawater side
There is great advantage in face.The reserves of China inland bitter are also extremely abundant, and China's bitter gross area is up to 1.6Mkm2, account for about
The 16.7% of national territorial area, wherein slight bitter salt water and moderate bitter reserves with extraction value are up to 20.05 hundred million m3。
2) it is not easy to conflict with resident living water and the generation of other industrial waters.Due to seawater and inland bitter sheet
Body salt content is high, not high in the application value of other industry, therefore will not generate strong competition, so as to avoid with water cost
Increase considerably and limitation of the water resource to paper industry.
Still further aspect, RO processing technique (i.e. Reverse Osmosis Water Treatment Technology) has reached its maturity at present, by the technology,
Municipal wastewater can be drained, the progress such as draining desalting processing outside papermaking outside, these waste water are recycled in the form of fresh water.
The fresh water of these recycling can be applied to pulping and paper-making or other production processes, have some enterprises in pulp and paper industry at present with municipal administration
As water source, there are also researchs to carry out membrane technology processing to draining outside papermaking for the outer draining of sewage, and by the fresh water of generation into
Row reuse, the results show that the fresh water that membrane technology processing generates can be very good to be applied to pulping and papermaking processes, while cost is not yet
It can obviously increase.
But RO processing technique also has one very big problem, is exactly the generation with fresh water, can generate simultaneously a certain proportion of
High strong brine, the processing and reuse of these high-salt wastewaters are also a critical issue urgently to be resolved.If can be by these height
Strong brine is back to pulping process, and can not only expand slurrying uses water source, while can also push paper making wastewater zero discharge
Development.
In general, the high strong brines such as the high-salt wastewater generated using seawater and brackish water and RO processing technique is media pair
The fibrous raw materials such as stalk carry out boiling, new use water source can be not only opened for pulp and paper industry, and can solve height
Problem of environmental pollution caused by salt discharge of wastewater, has broad application prospects.
But if the high strong brine such as high-salt wastewater directly generated using seawater and brackish water and RO processing technique is medium
Boiling is carried out to plant fiber materials such as stalks, it may appear that following problem:
(1) boiling is not thorough, and screenings rate is high, and screenings rate could be reduced by needing to improve boiling temperature or extending digestion time.
(2) Kappa number height is slurried, hardness is big, for paper and when manufacturing paper with pulp of cardboard, will affect the optical property and object of finished product
Rationality energy.
(3) boiling chemicals, such as sodium hydroxide, vulcanized sodium, dosage increase, and cost increases.
(4) black digestion liquid viscosity is high, is unfavorable for subsequent black liquor alkali recovery process.
Summary of the invention
The pulping process that the purpose of the present invention is to provide a kind of using high strong brine as digestion media, to solve papermaking system
The water resources consumption of slurry industry is excessive and high-salt wastewater is difficult to the problem of being recycled.
To solve the above-mentioned problems, the present invention provides a kind of pulping process using high strong brine as digestion media, including
Following steps:
(1) precipitating reagent and flocculant are sequentially added into high strong brine, is uniformly mixed, is then settled down to supernatant
Turbidity is lower than 25FTU and coloration is lower than 15 degree, removes sediment, obtains pretreated high strong brine；
(2) alkali is added into pretreated high strong brine obtained in step (1), is uniformly mixed, obtains cooking liquor；
(3) plant fiber material is added in cooking liquor described in step (2), catalyst is added thereto, mixing is equal
It is even, mixed liquor is warming up to 115~170 DEG C of progress boilings, and keep the temperature 15~60min, obtains slurry；
(4) black liquor in slurry described in extraction step (3), obtains the black liquor and target slurry.
It should be noted that standard unit's degree of coloration, which refers to, contains 2mg cobalt chloride hexahydrate (IV) in every liter of solution
It is 1 degree with the color generated when 1mg platinum (in the form of chlordene platinum (IV) acid).
Preferably, the pulping process of the present invention using high strong brine as digestion media, specifically comprises the following steps:
Specifically comprise the following steps:
(1) precipitating reagent and flocculant are sequentially added into high strong brine, are uniformly mixed, are then pumped to settling tank,
It is settled down to the turbidity of supernatant in settling tank lower than 25FTU and coloration is lower than 15 degree, the highly concentrated brine filter after sedimentation is gone
Except solid impurity, pretreated high strong brine is obtained；
(2) alkali is added into pretreated high strong brine obtained in step (1), is uniformly mixed, obtains cooking liquor；
(3) plant fiber material is added in boiling vessel, the boiling then is added in cooking liquor described in step (2)
In device, and catalyst is added thereto；It rotates the boiling vessel with the revolving speed of 2~15rpm, mixes 15~30min, will mix
Liquid is at the uniform velocity warming up to 115~170 DEG C within the time of 80~120min, and keeps the temperature 15~60min, obtains slurry；
(4) pulp spraying obtained in step (3) is put into jetting storehouse, is extracted in the slurry using acroll press washer
Black liquor, obtain the black liquor and target slurry, the black liquor be concentrated, and send to sode ash and knock off section
Carry out alkali collection；The target slurry is washed, the slurry after cleaning is for producing paper.The paper includes but unlimited
In boxboard, Cultural Paper, toilet paper.
It should be noted that those skilled in the art can select the boiling vessel, the boiling vessel packet according to the actual situation
Intermittent boiling vessel and continuously stewing device are included, the mixed process of the continuously stewing device is in screw-feeder or preimpregnation
It is carried out in storehouse.The boiling vessel can select rotary spherical digester.
Preferably, the highly concentrated salt water includes the high-salt wastewater of seawater and brackish water, RO processing generation.Specifically, described
Highly concentrated salt water includes the brine waste of seawater, inland bitter and salt content 0.5%~5%；For example, paper mill outlet
It drains outside treated the outer draining of water, municipal wastewater, paper mill through draining outside reverse osmosis resulting strong brine, municipal wastewater through instead
The strong brine that infiltration handles resulting discarded strong brine, sea water desalination generates.
Preferably, the flocculant is the mixing of one or both of PAC, PAM；The dosage of the flocculant is described
The volume of flocculant and the volume ratio of the high strong brine are (5~20): 1000.The PAC refers to aluminium polychloride, chemistry
Formula is Al2Cln(OH)6-n, CAS accession number is in 1327-41-9,101707-17-9,11097-68-0,114442-10-3
One kind.The PAM is the abbreviation of Polyacrylamide, refers to polyacrylamide, is non-ionic high polymer coagulant,
Chemical formula is C3H5NO, molecular weight 1,500,000-2,000 ten thousand, CAS accession number are 9003-05-8.
Preferably, the precipitating reagent is NaOH and Na2CO3Mixture；The dosage of the precipitating reagent is the precipitating reagent
The mass ratio of quality and the high strong brine is (1~8): 1000.Wherein, the NaOH and Na2CO3Mixture, the two presses
It is mixed according to certain mass ratio, required mass ratio is determined according to the water quality of high strong brine；The dosage of the precipitating reagent is institute
The mass ratio of the quality and the high strong brine of stating precipitating reagent is (1~8): 1000.
Preferably, the alkali is sodium hydroxide；Mass percent (by NaOH in terms of) of the alkali in the cooking liquor be
3wt%~8wt%.
Preferably, the plant fiber material is the mixing of one or both of agricultural crop straw, grass as raw material；It is described
Agricultural crop straw includes wheat stalk, rice straw, ginger stalk, corn stover, broomcorn straw, millet stalk；The grass class
Raw material includes reed, reed, Chinese alpine rush.
It is further preferred that further including to institute in step (2) when containing the grass as raw material in the plant fiber material
State the step of vulcanized sodium is added in cooking liquor.
It is further preferred that mass percent of the vulcanized sodium in the cooking liquor is 0.5wt%~3wt%.
It preferably, further include to the pretreated step of the plant fiber, the specific steps are as follows: plant fiber material is taken,
It is cut to 20mm~50mm, then is washed, dedusting.
Preferably, the catalyst is anthraquinone；The molecular formula of the anthraquinone is C14H8O2, CAS accession number is 84-65-
1。
The quality for the catalyst being added is the 0.03%~0.08% of the absolute dry mass of the plant fiber material.
The absolute dry mass of the plant fiber material refers to the plant fiber material for sloughing moisture completely.
Compared with the prior art, the present invention has the following beneficial effects:
(1) pulping process of the present invention using high strong brine as digestion media, can make full use of seawater, inland
The water resources such as bitter are avoided competing with resident living water and other industrial waters etc.；Furthermore it is also possible to by RO processing technique
The high-salt wastewater of generation is used, and has both solved the water resources problems of pulping and paper-making, while also solving RO processing technique
Waste water handling problem also provides approach for pulp and paper making wastewater zero discharge.
(2) pulping process of the present invention using high strong brine as digestion media, overcomes various in high strong brine
The influence of ion pair boiling.Since extra large impurities in water is more, and contain a large amount of calcium, magnesium plasma, when being used for paper-making pulping, meeting
There is the problem of alkaline consumption increases, cost increases, the pulping process of the present invention using high strong brine as digestion media passes through
Specific flocculant, precipitating reagent is added, reduces the content of impurity and various ions, to save sodium hydroxide, vulcanized sodium
Dosage.By the method for flocculating setting, flocculant is added, eliminates the suspended particulate substances such as silt, the seaweed in high strong brine,
So as to avoid these impurity during the cooking process to the consumption of alkali, and by precipitating reagent, then it can remove and contain in seawater
Magnesium, calcium plasma, these ions can be reacted with the alkali in cooking liquor, generated precipitating, reduced the content of effective alkali in cooking liquor.
Especially, the flocculant is PAC, PAM, and the precipitating reagent used is NaOH and Na2CO3It is mixed according to certain mass ratio
It forms, both flocculant and precipitating reagent are used cooperatively, and effect is more significant；
(3) pulping process of the present invention using high strong brine as digestion media, boiling is thorough, and screenings rate is low.By
Have the characteristics that salt content is high, calcium ions and magnesium ions are high in high strong brine, when carrying out boiling to plant material, calcium ions and magnesium ions can be with steaming
Effective alkali in boil liquid, which reacts, generates precipitating, reduces the content of effective alkali in cooking liquor, and then it is tired to cause cooking liquor to be impregnated with
Difficult, lignin is difficult to the problem of degrading；The salt content of high strong brine is high, on the one hand, a large amount of cation can be deposited on fibrocyte
In wall, cause road south effect, lignin is interfered to dissolve out from cell wall, reduces lignin dissolution rate, on the other hand, high salinity band
The high ionic strength come can also destroy the charge stability of dissolved lignin colloid, cause the redeposition of dissolved lignin.These factors
It eventually results in boiling to be not thorough, screenings rate is high；Kappa number height is slurried, hardness is big；Black digestion liquid viscosity is high, it is difficult to be concentrated, alkali
Recovery processing need to additionally add the additive that coal, charcoal etc. have high heating value, and ignition temperature is low.And it is heretofore described with
Pulping process of the high strong brine as digestion media reduces solid impurity and calcium and magnesium by the addition of flocculant, precipitating reagent
The content of ion, improves the content of effective alkali in cooking liquor, and then improves cooking effect.Meanwhile adding by catalyst
Enter, the control of pre-preg time, boiling temperature and time, accelerate the removing and dissolution of lignin, overcome the above problem, realizes
Application of the high strong brine in pulping process.
Specific embodiment
The person that is not specified actual conditions in various embodiments of the present invention, carries out according to conventional conditions or manufacturer's recommended conditions.
Reagents or instruments used without specified manufacturer, being can be with conventional products that are commercially available.It is used in each embodiment
Raw material is that market is bought.Wherein:
The PAC is bought from Changzhou Order Lay Chemical trade Co., Ltd；
The PAM is bought from Suzhou perseverance Xinda Environmental Protection Technology Co., Ltd, specification/model ZETAG-125；
From Sinopharm Chemical Reagent Co., Ltd., specification chemistry is pure for the NaOH purchase；
The Na2CO3From Sinopharm Chemical Reagent Co., Ltd., specification/model chemistry is pure for purchase；
From Sinopharm Chemical Reagent Co., Ltd., specification/model chemistry is pure for the vulcanized sodium purchase；
From Sinopharm Chemical Reagent Co., Ltd., specification is that analysis is pure for the anthraquinone purchase；
The wheat stalk is bought from Guanghua Paper Industry Group Co., Ltd., Shandong；
The rice straw is bought from Guanghua Paper Industry Group Co., Ltd., Shandong；
The ginger stalk is derived from the ginger stalk of Qingdao Pingdu growth；
The corn stover is derived from the corn stover of Zibo, Shandong Province Huantai County growth；
The broomcorn straw is derived from the broomcorn straw of Hebei Hengshui City Fucheng County growth；
The millet stalk is derived from the millet stalk of Hebei Handan City growth；
The reed is derived from the reed of Hebei Hengshui City Anping County growth；
Described reed is derived from reed of Hebei Hengshui City Anping County growth；
The Chinese alpine rush is derived from the Chinese alpine rush of Langfang in Hebei Province's growth；
It should be noted that above-mentioned raw materials of the invention may be used also the above is only the source of the raw material used in the present embodiment
Using other commercially available conventional products, different manufacturers, model raw material have no effect on the implementation and technology of technical solution of the present invention
The realization of effect.
Embodiment 1
The pulping process using high strong brine as digestion media of the present embodiment, includes the following steps:
(1) precipitating reagent and flocculant are added into high strong brine, is uniformly mixed, is then settled down to the turbidity of supernatant
Lower than 25FTU and coloration is lower than 15 degree, removes sediment, obtains pretreated high strong brine；
Wherein, the high strong brine is seawater, and the main component contained is as follows: seawater salt content is 35.5g/kg,
In, the content of sodium element is 10.77g/kg, and the content of magnesium elements is 1.29g/kg, and the content of calcium constituent is 0.412g/kg.Institute
Stating flocculant is PAC, and dosage is the volume of the flocculant and the volume ratio of the high strong brine is 5:1000.The precipitating
Agent is NaOH and Na2CO3It is mixed according to the mass ratio of 4:1, quality and the highly concentrated salt of the dosage for the precipitating reagent
The mass ratio of water is 5.5:1000.
(2) alkali is added into pretreated high strong brine obtained in step (1), is uniformly mixed, obtains cooking liquor；
Wherein, the alkali is sodium hydroxide, and the mass percent in cooking liquor is 5.0wt%.
(3) plant fiber material is added in cooking liquor described in step (2), catalyst is added thereto, mixing is equal
It is even, mixed liquor is warming up to 155 DEG C of progress boilings, and keep the temperature 30min, obtains slurry；
Wherein, the plant fiber material is agricultural crop straw, specially wheat stalk, moisture content 8%, by exhausted
The plant fiber material that absolute dry mass is 400g is added in dry mass meter.The additional amount of the cooking liquor is 1.20kg；It is described
Catalyst is anthraquinone；The quality for the catalyst being added is the 0.05% of the absolute dry mass of the plant fiber material.
(4) black liquor in slurry described in extraction step (3), obtains the black liquor and target slurry.
Embodiment 2
The pulping process using high strong brine as digestion media of the present embodiment, includes the following steps:
(1) precipitating reagent and flocculant are added into high strong brine, is uniformly mixed, is then settled down to the turbidity of supernatant
Lower than 25FTU and coloration is lower than 15 degree, removes sediment, obtains pretreated high strong brine；
Wherein, the high strong brine is bitter, and the main component contained is as follows: bitter salt content is 10.6g/
Kg, wherein the content of sodium element is 3.26g/kg, and the content of magnesium elements is 0.20g/kg, and the content of calcium constituent is 0.54/kg.
The flocculant is PAM, and dosage is the volume of the flocculant and the volume ratio of the high strong brine is 20:1000.It is described
Precipitating reagent is NaOH and Na2CO3It is mixed according to the mass ratio of 1:2, quality and the height of the dosage for the precipitating reagent
The mass ratio of strong brine is 2:1000.
(2) alkali is added into pretreated high strong brine obtained in step (1), is uniformly mixed, obtains cooking liquor；
Wherein, the alkali is sodium hydroxide, and the mass percent in cooking liquor is 3.5wt%.
(3) plant fiber material is added in cooking liquor described in step (2), catalyst is added thereto, mixing is equal
It is even, mixed liquor is warming up to 115 DEG C of progress boilings, and keep the temperature 60min, obtains slurry；
Wherein, the plant fiber material is agricultural crop straw, specially rice straw, moisture content 8%, by exhausted
The plant fiber material that absolute dry mass is 400g is added in dry mass meter.The additional amount of the cooking liquor is 1.0kg.It is described
Catalyst is anthraquinone；The quality for the catalyst being added is the 0.03% of the absolute dry mass of the plant fiber material.
(4) black liquor in slurry described in extraction step (3), obtains the black liquor and target slurry.
Embodiment 3
The pulping process using high strong brine as digestion media of the present embodiment, includes the following steps:
(1) precipitating reagent and flocculant are added into high strong brine, is uniformly mixed, is then settled down to the turbidity of supernatant
Lower than 25FTU and coloration is lower than 15 degree, removes sediment, obtains pretreated high strong brine；
Wherein, the high strong brine is the high-salt wastewater that RO processing generates, and the main component contained is as follows: high strong brine
Salt content is 45.7g/kg, wherein the content of sodium element is 13.90g/kg, and the content of magnesium elements is 1.66g/kg, calcium constituent
Content is 0.531g/kg.The flocculant is that PAC and PAM is mixed according to the mass ratio of 1:2, and dosage is the flocculation
The volume of agent and the volume ratio of the high strong brine are 12:1000.The precipitating reagent is NaOH and Na2CO3According to the quality of 4:1
Than mixing, dosage is the quality of the precipitating reagent and the mass ratio of the high strong brine is 8:1000.
(2) alkali is added into pretreated high strong brine obtained in step (1), is uniformly mixed, obtains cooking liquor；
Wherein, the alkali is sodium hydroxide, and the mass percent in cooking liquor is 6wt%.In cooking liquor, vulcanized sodium
Mass percent be 0.5wt%.
(3) plant fiber material is added in cooking liquor described in step (2), catalyst is added thereto, mixing is equal
It is even, mixed liquor is warming up to 143 DEG C of progress boilings, and keep the temperature 50min, obtains slurry；
Wherein, the plant fiber material be grass as raw material, specially reed, Chinese alpine rush according to 1:1 mass ratio mixing and
At the plant fiber material that absolute dry mass is 400g is added based on absolute dry mass in moisture content 7%.The boiling
The additional amount of liquid is 1.4kg.The catalyst is anthraquinone；The quality for the catalyst being added is the plant fiber material
The 0.04% of absolute dry mass.
(4) black liquor in slurry described in extraction step (3), obtains the black liquor and target slurry.
Embodiment 4
The pulping process using high strong brine as digestion media of the present embodiment, specifically comprises the following steps:
(1) precipitating reagent and flocculant are added into high strong brine, is uniformly mixed, is then pumped to settling tank, heavy
It is settled down to the turbidity of supernatant in drop pond lower than 25FTU and coloration is lower than 15 degree, by the highly concentrated brine filter after sedimentation, removal is solid
Body impurity obtains pretreated high strong brine；
Wherein, the high strong brine is the high-salt wastewater that RO processing generates, and the main component contained is as follows: salt content is
9.6g/kg, wherein the content of sodium element is 3.26g/kg, and the content of magnesium elements is 0.37g/kg, and the content of calcium constituent is
0.44/kg.The flocculant is PAC, and dosage is the volume of the flocculant and the volume ratio of the high strong brine is 5:
1000.The precipitating reagent is NaOH and Na2CO3It is mixed according to the mass ratio of 1:1, dosage is the quality of the precipitating reagent
Mass ratio with the high strong brine is 2.5:1000.
(2) alkali, vulcanized sodium are added into pretreated high strong brine obtained in step (1), is uniformly mixed, is steamed
Boil liquid；
Wherein, the alkali is sodium hydroxide, and the mass percent in cooking liquor is 8wt%.Vulcanized sodium in cooking liquor
Mass percent be 3wt%.
(3) plant fiber material is taken, 20mm is cut to, then is washed, dedusting；Boiling vessel is added in plant fiber material
In, then cooking liquor described in step (2) is added in the boiling vessel, and catalyst is added thereto；Make the boiling
Device is rotated with the revolving speed of 2rpm, is mixed 15min, mixed liquor is at the uniform velocity warming up to 160 DEG C within the time of 100min, and keep the temperature
30min obtains slurry；
Wherein, the plant fiber material is grass as raw material, specially reed, moisture content 8%, by absolute dry mass
The plant fiber material that absolute dry mass is 400g is added in meter.The additional amount of the cooking liquor is 1.6kg；The catalyst
For anthraquinone；The quality for the catalyst being added is the 0.08% of the absolute dry mass of the plant fiber material.
(4) pulp spraying obtained in step (3) is put into jetting storehouse, is extracted in the slurry using acroll press washer
Black liquor, obtain the black liquor and target slurry, the black liquor be concentrated, and send to sode ash and knock off section
Carry out alkali collection；The target slurry is washed, the slurry after cleaning is for producing paper.
Embodiment 5
The pulping process using high strong brine as digestion media of the present embodiment, specifically comprises the following steps:
(1) precipitating reagent and flocculant are added into high strong brine, is uniformly mixed, is then pumped to settling tank, heavy
It is settled down to the turbidity of supernatant in drop pond lower than 25FTU and coloration is lower than 15 degree, by the highly concentrated brine filter after sedimentation, removal is solid
Body impurity obtains pretreated high strong brine；
Wherein, the settling tank is or inclined plate sedimentation pond；The high strong brine is the high-salt wastewater that RO processing generates, and is contained
Some main components are as follows: salt content 5.3g/kg, wherein the content of sodium element is 1.76g/kg, and the content of magnesium elements is
0.11g/kg, the content of calcium constituent are 0.26g/kg.The flocculant is PAM, volume and institute of the dosage for the flocculant
The volume ratio for stating high strong brine is 20:1000.The precipitating reagent is NaOH and Na2CO3It is mixed according to the mass ratio of 1:2,
Dosage is the quality of the precipitating reagent and the mass ratio of the high strong brine is 1:1000.
(2) alkali, vulcanized sodium are added into pretreated high strong brine obtained in step (1), is uniformly mixed, is steamed
Boil liquid；
Wherein, the alkali is sodium hydroxide, and the mass percent in cooking liquor is 7wt%.Vulcanized sodium in cooking liquor
Mass percent is 1.5wt%.
(3) plant fiber material is taken, 50mm is cut to, then is washed, dedusting；Boiling vessel is added in plant fiber material
In, then cooking liquor described in step (2) is added in the boiling vessel, and catalyst is added thereto；Make the boiling
Device is rotated with the revolving speed of 15rpm, is mixed 30min, mixed liquor is at the uniform velocity warming up to 170 DEG C within the time of 120min, and keep the temperature
30min obtains slurry；
Wherein, the plant fiber material be agricultural crop straw, specially broomcorn straw, millet stalk according to 1:1 matter
Amount ratio mixes；Its moisture content is 9%, and based on absolute dry mass, it is former that the plant fiber that absolute dry mass is 400g is added
Material.The additional amount of the cooking liquor is 1.2kg.The catalyst is anthraquinone；The quality for the catalyst being added is the plant
The 0.06% of the absolute dry mass of fibres raw material.
(4) pulp spraying obtained in step (3) is put into jetting storehouse, is extracted in the slurry using acroll press washer
Black liquor, obtain the black liquor and target slurry, the black liquor be concentrated, and send to sode ash and knock off section
Carry out alkali collection；The target slurry is washed, the slurry after cleaning is for producing paper.
Embodiment 6
The pulping process using high strong brine as digestion media of the present embodiment, specifically comprises the following steps:
(1) precipitating reagent and flocculant are added into high strong brine, is uniformly mixed, is then pumped to settling tank, heavy
It is settled down to the turbidity of supernatant in drop pond lower than 25FTU and coloration is lower than 15 degree, by the highly concentrated brine filter after sedimentation, removal is solid
Body impurity obtains pretreated high strong brine；
Wherein, the settling tank is conventional settling tank；The high strong brine is the high-salt wastewater that RO processing generates, and is contained
Main component it is as follows: salt content 21.6g/kg, wherein the content of sodium element is 7.88g/kg, and the content of magnesium elements is
0.52g/kg, the content of calcium constituent are 1.19/kg.The flocculant is that PAC and PAM is obtained by mixing according to the mass ratio of 1:5,
Dosage is the volume of the flocculant and the volume ratio of the high strong brine is 12:1000.The precipitating reagent is NaOH and Na2CO3
It is mixed according to the mass ratio of 1:2, dosage is the quality of the precipitating reagent and the mass ratio of the high strong brine is 5:
1000。
(2) alkali, vulcanized sodium are added into pretreated high strong brine obtained in step (1), is uniformly mixed, is steamed
Boil liquid；
Wherein, the alkali is sodium hydroxide, and the mass percent in cooking liquor is 3wt%.
(3) plant fiber material is taken, 35mm is cut to, then is washed, dedusting；Rotary spherical digester is added in plant fiber material
In, then cooking liquor described in step (2) is added in the rotary spherical digester, and catalyst is added thereto；Make the rotary spherical digester with
The revolving speed of 9rpm rotates, and mixes 23min, mixed liquor is at the uniform velocity warming up to 150 DEG C within the time of 80min, and keep the temperature 15min,
Obtain slurry；
Wherein, the plant fiber material is agricultural crop straw, specially ginger stalk；Its moisture content is 9%, by exhausted
The plant fiber material that absolute dry mass is 400g is added in dry mass meter.The additional amount of the cooking liquor is 2kg.It is described to urge
Agent is anthraquinone；The quality for the catalyst being added is the 0.05% of the absolute dry mass of the plant fiber material.
(4) pulp spraying obtained in step (3) is put into jetting storehouse, is extracted in the slurry using acroll press washer
Black liquor, obtain the black liquor and target slurry, the black liquor be concentrated, and send to sode ash and knock off section
Carry out alkali collection；The target slurry is washed, the slurry after cleaning is for producing paper.
Comparative example 1
The pulping process using high strong brine as digestion media of this comparative example, it is completely the same with the method in embodiment 1,
Difference is only that: being added without flocculant in step (1).
Comparative example 2
The pulping process using high strong brine as digestion media of this comparative example, it is completely the same with the method in embodiment 1,
Difference is only that: being added without precipitating reagent in step (1).
Comparative example 3
The pulping process using high strong brine as digestion media of this comparative example, it is completely the same with the method in embodiment 1,
Difference is only that: being added without flocculant and precipitating reagent in step (1).
Comparative example 4
The pulping process using high strong brine as digestion media of this comparative example, it is completely the same with the method in embodiment 1,
Difference is only that: the precipitating reagent being added in step (1) is NaOH and Na2CO3It is mixed according to the mass ratio of 1:1.
Comparative example 5
The pulping process using high strong brine as digestion media of this comparative example, it is completely the same with the method in embodiment 1,
Difference is only that: being added without catalyst in step (3).
Comparative example 6
The pulping process using high strong brine as digestion media of this comparative example, it is completely the same with the method in embodiment 1,
Difference is only that: the quality that the catalyst is added in step (3) is the absolute dry mass of the plant fiber material
0.10%.
Effete test embodiment
The target slurry being prepared in Example 1-6, comparative example 1-6, number 1-12 respectively starch gained
Material is screened with flat screen, and sieve plate is slotted screen, and the width of screen slot is 0.15mm, and the slurry by screening is screened stock, will
Gained screened stock measures moisture according to GB/T 462-2008, and then the absolute dry mass of gained screened stock, the over dry matter of screened stock is calculated
The ratio between amount and original absolute dry mass are screened yield；Its ash content is measured according to the method in national standard GB/T 742-2008；It presses
Its Kappa number is measured according to the method in national standard GB/T 1546-2004；It is measured according to the method in national standard GB/T 1548-2016
Viscosity；Its beating degree is measured according to the method in national standard GB/T 3332-2004；According to the side in national standard GB/T 12914-2008
Method measures its tensile index；Its tear index is measured according to the method in national standard GB/T 455-2002.
After measured, it is as follows to obtain experimental result:
From the above results, the pulping process of the present invention using high strong brine as digestion media, can completely may be used
Soda pulping process is carried out to plant fiber material to realize using high strong brine as digestion media.Although since the plant fiber is former
Expect that the difference of selection, the experimental data of 1-6 group have differences, but the 1st group with 7-12 group using wheat stalk as plant
Fibrous raw material, and slurrying is carried out under identical conditions, comparison the 1st, 7-12 group data this it appears that: pass through flocculation
Agent, the selection of precipitating reagent, catalyst, produce significant impact to effects on slurry making.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. a kind of pulping process using high strong brine as digestion media, which comprises the steps of:
(1) precipitating reagent and flocculant are sequentially added into high strong brine, is uniformly mixed, is then settled down to the turbidity of supernatant
Lower than 25FTU and coloration is lower than 15 degree, removes sediment, obtains pretreated high strong brine；
(2) alkali is added into pretreated high strong brine obtained in step (1), is uniformly mixed, obtains cooking liquor；
(3) plant fiber material is added in cooking liquor described in step (2), catalyst is added thereto, be uniformly mixed, it will
Mixed liquor is warming up to 115~170 DEG C of progress boilings, and keeps the temperature 15~60min, obtains slurry；
(4) black liquor in slurry described in extraction step (3), obtains the black liquor and target slurry.
2. the pulping process according to claim 1 using high strong brine as digestion media, which is characterized in that specifically include
Following steps:
(1) precipitating reagent and flocculant are sequentially added into high strong brine, is uniformly mixed, is then pumped to settling tank, heavy
It is settled down to the turbidity of supernatant in drop pond lower than 25FTU and coloration is lower than 15 degree, by the highly concentrated brine filter after sedimentation, removal is solid
Body impurity obtains pretreated high strong brine；
(2) alkali is added into pretreated high strong brine obtained in step (1), is uniformly mixed, obtains cooking liquor；
(3) plant fiber material is added in boiling vessel, the boiling vessel then is added in cooking liquor described in step (2)
In, and catalyst is added thereto；It rotates the boiling vessel with the revolving speed of 2~15rpm, 15~30min is mixed, by mixed liquor
It is at the uniform velocity warming up to 115~170 DEG C within the time of 80~120min, and keeps the temperature 15~60min, obtains slurry；
(4) pulp spraying obtained in step (3) is put into jetting storehouse, the paper in the slurry is extracted using acroll press washer
Starch black liquor, obtain the black liquor and target slurry, the black liquor be concentrated, and send to sode ash knock off section carry out
Alkali collection；The target slurry is washed, the slurry after cleaning is for producing paper.
3. the pulping process according to claim 1 or 2 using high strong brine as digestion media, which is characterized in that described
Highly concentrated salt water includes the high-salt wastewater of seawater and brackish water, RO processing generation.
4. the pulping process according to claim 1 or 2 using high strong brine as digestion media, which is characterized in that described
Flocculant is the mixing of one or both of PAC, PAM；The dosage of the flocculant be the flocculant volume with it is described
The volume ratio of high strong brine is (5~20): 1000；
The precipitating reagent is NaOH and Na2CO3Mixture；The dosage of the precipitating reagent be the precipitating reagent quality with it is described
The mass ratio of high strong brine is (1~8): 1000.
5. the pulping process according to claim 1 or 2 using high strong brine as digestion media, which is characterized in that described
Alkali is sodium hydroxide；Mass percent of the alkali in the cooking liquor is 3wt%~8wt%.
6. the pulping process according to claim 1 or 2 using high strong brine as digestion media, which is characterized in that described
Plant fiber material is the mixing of one or both of agricultural crop straw, grass as raw material；The agricultural crop straw includes wheat
Stalk, rice straw, ginger stalk, corn stover, broomcorn straw, millet stalk；The grass as raw material includes reed, reed, dragon
Moss.
7. the pulping process according to claim 6 using high strong brine as digestion media, which is characterized in that the plant
When containing the grass as raw material in fibrous raw material, further include the steps that vulcanized sodium is added into the cooking liquor in step (2).
8. the pulping process according to claim 7 using high strong brine as digestion media, which is characterized in that the vulcanization
Mass percent of the sodium in the cooking liquor is 0.5wt%~3wt%.
9. the pulping process according to claim 6 using high strong brine as digestion media, which is characterized in that further include pair
The pretreated step of plant fiber, the specific steps are as follows: take plant fiber material, be cut to 20mm~50mm, then carry out
Washing, dedusting.
10. the pulping process according to claim 1 or 2 using high strong brine as digestion media, which is characterized in that described
Catalyst is anthraquinone；Be added the catalyst quality be the plant fiber material absolute dry mass 0.03%~
0.08%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810872785.XA CN109024033B (en) | 2018-08-02 | 2018-08-02 | Pulping method using high-concentration brine as cooking medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810872785.XA CN109024033B (en) | 2018-08-02 | 2018-08-02 | Pulping method using high-concentration brine as cooking medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109024033A true CN109024033A (en) | 2018-12-18 |
| CN109024033B CN109024033B (en) | 2020-11-24 |
Family
ID=64649042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810872785.XA Expired - Fee Related CN109024033B (en) | 2018-08-02 | 2018-08-02 | Pulping method using high-concentration brine as cooking medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109024033B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109647440A (en) * | 2019-01-24 | 2019-04-19 | 青岛科技大学 | A kind of utilization method of stalk |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1412087A (en) * | 1973-01-20 | 1975-10-29 | Standard Messo Duisburg | Evaporators and crystallizers |
| CN1098070A (en) * | 1993-07-30 | 1995-02-01 | 山西大学 | Method with photosynthetic bacterial treatment paper waste |
| CA2256923A1 (en) * | 1998-12-23 | 2000-06-23 | Eco-Tec Limited | Kraft pulping process |
| CN101768887A (en) * | 2010-03-17 | 2010-07-07 | 山东泉林纸业有限责任公司 | Circular utilization method of straw in pulping and papermaking processes |
| CN103351068A (en) * | 2013-07-24 | 2013-10-16 | 宜宾海丝特纤维有限责任公司 | Pre-treatment technology of ultrafiltration for electrodialytic alkali recovery of black liquor in pulp manufacturing |
-
2018
- 2018-08-02 CN CN201810872785.XA patent/CN109024033B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1412087A (en) * | 1973-01-20 | 1975-10-29 | Standard Messo Duisburg | Evaporators and crystallizers |
| CN1098070A (en) * | 1993-07-30 | 1995-02-01 | 山西大学 | Method with photosynthetic bacterial treatment paper waste |
| CA2256923A1 (en) * | 1998-12-23 | 2000-06-23 | Eco-Tec Limited | Kraft pulping process |
| CN101768887A (en) * | 2010-03-17 | 2010-07-07 | 山东泉林纸业有限责任公司 | Circular utilization method of straw in pulping and papermaking processes |
| CN103351068A (en) * | 2013-07-24 | 2013-10-16 | 宜宾海丝特纤维有限责任公司 | Pre-treatment technology of ultrafiltration for electrodialytic alkali recovery of black liquor in pulp manufacturing |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109647440A (en) * | 2019-01-24 | 2019-04-19 | 青岛科技大学 | A kind of utilization method of stalk |
| CN109647440B (en) * | 2019-01-24 | 2021-07-20 | 青岛科技大学 | Straw utilization method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109024033B (en) | 2020-11-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2792315C (en) | Circular utilization method in pulping and papermaking processes with straw | |
| CN103510418B (en) | A kind of without black liquor chemical pulping process | |
| CN109734145A (en) | A kind for the treatment of of dyeing wastewater composite flocculation agent | |
| CN102923880B (en) | Technology for increasing number of recycle of papermaking white water | |
| CN101274947B (en) | Method for extracting lignosulphonate from sodium sulfite bamboo pulp waste liquor | |
| CN108299573A (en) | The method of comprehensive utilization of casing factory waste water | |
| CN107986417A (en) | A kind of preparation method of Sewage sepiolite/starch grafted polyacrylamide composite flocculation agent | |
| CN106946438A (en) | The organic composite sludge dehydration conditioner and preparation method prepared using paper mill sludge | |
| CN102583688B (en) | Method for treating and reusing pulping black liquor acidification lignin wastewater | |
| CN104671497B (en) | Realize straw pulping and paper-making and waste lead acid battery and regenerate the energy-conserving and environment-protective technique of two industrial symbiosis mutual benefits | |
| CN103663644B (en) | A kind of flocculation agent for the treatment of paper waste | |
| CN109024033A (en) | A kind of pulping process using high strong brine as digestion media | |
| CN103922505B (en) | A kind of method utilizing nanofiltration membrane advanced treatment Tea Bag Paper mthod of white water from paper making | |
| CN105858844A (en) | Composite flocculating agent for treating printing and dyeing wastewater | |
| CN105776481B (en) | Double modified stalk fiber treatment of dyeing/printing wastewaters of xanthate cation and preparation method thereof | |
| CN104628052A (en) | Water purifier for treating papermaking wastewater | |
| CN105858976B (en) | A kind of processing method of tobacco sheets by paper making method technique waste water | |
| CN100557123C (en) | Few chlorine bleach of alkaline sodium sulfite method straw pulp and the totally-enclosed reuse technology of middle section water | |
| JP2019072701A (en) | Flocculant composition and water treatment method | |
| CN101186404A (en) | Method for treating pulp sewage | |
| CN203700850U (en) | Cotton linter KOH stewing and pulping system | |
| CN110894248A (en) | Method for extracting hemicellulose from prehydrolysis liquid | |
| CN108349761A (en) | Method for optimizing the material recovery in chemical pulping process | |
| CN108455713B (en) | Waste paper deinking wastewater flocculant and preparation method thereof | |
| CN104649387A (en) | Flocculating agent suitable for papermaking waste water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201124 Termination date: 20210802 |