CN1261640C - Method for producing pulp by potassium containing compound as steaming preparation with cellulose containing raw material - Google Patents
Method for producing pulp by potassium containing compound as steaming preparation with cellulose containing raw material Download PDFInfo
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- CN1261640C CN1261640C CN 200410070656 CN200410070656A CN1261640C CN 1261640 C CN1261640 C CN 1261640C CN 200410070656 CN200410070656 CN 200410070656 CN 200410070656 A CN200410070656 A CN 200410070656A CN 1261640 C CN1261640 C CN 1261640C
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- potassium
- raw material
- waste liquor
- pulping
- pulp
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- 239000002994 raw material Substances 0.000 title claims abstract description 32
- 229920002678 cellulose Polymers 0.000 title claims abstract description 18
- 239000001913 cellulose Substances 0.000 title claims abstract description 18
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 title claims abstract description 10
- 239000011591 potassium Substances 0.000 title claims abstract description 10
- 229910052700 potassium Inorganic materials 0.000 title claims abstract description 10
- 150000001875 compounds Chemical class 0.000 title claims abstract description 7
- 238000002360 preparation method Methods 0.000 title claims description 22
- 238000010025 steaming Methods 0.000 title claims description 18
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000002699 waste material Substances 0.000 claims abstract description 45
- 238000004537 pulping Methods 0.000 claims abstract description 39
- 238000000034 method Methods 0.000 claims abstract description 30
- 239000003337 fertilizer Substances 0.000 claims abstract description 24
- 239000000203 mixture Substances 0.000 claims abstract description 13
- 239000000126 substance Substances 0.000 claims abstract description 7
- 239000002002 slurry Substances 0.000 claims abstract description 5
- 238000001694 spray drying Methods 0.000 claims abstract description 4
- 229920001131 Pulp (paper) Polymers 0.000 claims description 31
- 238000009835 boiling Methods 0.000 claims description 26
- 239000007788 liquid Substances 0.000 claims description 24
- 150000003112 potassium compounds Chemical class 0.000 claims description 23
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 18
- 150000003388 sodium compounds Chemical class 0.000 claims description 18
- 150000003868 ammonium compounds Chemical class 0.000 claims description 16
- PQUCIEFHOVEZAU-UHFFFAOYSA-N Diammonium sulfite Chemical compound [NH4+].[NH4+].[O-]S([O-])=O PQUCIEFHOVEZAU-UHFFFAOYSA-N 0.000 claims description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- BHZRJJOHZFYXTO-UHFFFAOYSA-L potassium sulfite Chemical compound [K+].[K+].[O-]S([O-])=O BHZRJJOHZFYXTO-UHFFFAOYSA-L 0.000 claims description 8
- 235000019252 potassium sulphite Nutrition 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 7
- 229940072033 potash Drugs 0.000 claims description 6
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 6
- 235000015320 potassium carbonate Nutrition 0.000 claims description 6
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 6
- 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 4
- 239000012141 concentrate Substances 0.000 claims description 4
- 239000003895 organic fertilizer Substances 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 229910052708 sodium Inorganic materials 0.000 claims description 4
- 239000011734 sodium Substances 0.000 claims description 4
- DJEHXEMURTVAOE-UHFFFAOYSA-M potassium bisulfite Chemical compound [K+].OS([O-])=O DJEHXEMURTVAOE-UHFFFAOYSA-M 0.000 claims description 3
- 229940099427 potassium bisulfite Drugs 0.000 claims description 3
- 235000010259 potassium hydrogen sulphite Nutrition 0.000 claims description 3
- DPLVEEXVKBWGHE-UHFFFAOYSA-N potassium sulfide Chemical compound [S-2].[K+].[K+] DPLVEEXVKBWGHE-UHFFFAOYSA-N 0.000 claims description 3
- 235000010265 sodium sulphite Nutrition 0.000 claims description 3
- AOSFMYBATFLTAQ-UHFFFAOYSA-N 1-amino-3-(benzimidazol-1-yl)propan-2-ol Chemical compound C1=CC=C2N(CC(O)CN)C=NC2=C1 AOSFMYBATFLTAQ-UHFFFAOYSA-N 0.000 claims description 2
- 102100031260 Acyl-coenzyme A thioesterase THEM4 Human genes 0.000 claims description 2
- 101000638510 Homo sapiens Acyl-coenzyme A thioesterase THEM4 Proteins 0.000 claims description 2
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 claims description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 2
- 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 2
- 150000004056 anthraquinones Chemical class 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 238000005422 blasting Methods 0.000 claims description 2
- 239000004202 carbamide Substances 0.000 claims description 2
- 238000000605 extraction Methods 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 150000002978 peroxides Chemical class 0.000 claims description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 2
- 229940079827 sodium hydrogen sulfite Drugs 0.000 claims description 2
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 claims description 2
- 238000006277 sulfonation reaction Methods 0.000 claims description 2
- 235000008504 concentrate Nutrition 0.000 claims 1
- 235000014666 liquid concentrate Nutrition 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 239000003795 chemical substances by application Substances 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract 1
- 239000000835 fiber Substances 0.000 abstract 1
- 150000002894 organic compounds Chemical class 0.000 abstract 1
- 239000010902 straw Substances 0.000 description 17
- 241000209140 Triticum Species 0.000 description 14
- 235000021307 Triticum Nutrition 0.000 description 14
- 239000002023 wood Substances 0.000 description 9
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 8
- 235000017491 Bambusa tulda Nutrition 0.000 description 8
- 241001330002 Bambuseae Species 0.000 description 8
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 8
- 239000011425 bamboo Substances 0.000 description 8
- 230000000740 bleeding effect Effects 0.000 description 5
- 230000014759 maintenance of location Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 238000004061 bleaching Methods 0.000 description 4
- 238000010411 cooking Methods 0.000 description 4
- 241000609240 Ambelania acida Species 0.000 description 3
- 239000010905 bagasse Substances 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 239000003866 digestant Substances 0.000 description 3
- 239000012978 lignocellulosic material Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 230000002262 irrigation Effects 0.000 description 2
- 238000003973 irrigation Methods 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 239000001103 potassium chloride Substances 0.000 description 2
- 235000011164 potassium chloride Nutrition 0.000 description 2
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 2
- 229910052939 potassium sulfate Inorganic materials 0.000 description 2
- 235000011151 potassium sulphates Nutrition 0.000 description 2
- 229910001415 sodium ion Inorganic materials 0.000 description 2
- FOGYNLXERPKEGN-UHFFFAOYSA-N 3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfopropyl)phenoxy]propane-1-sulfonic acid Chemical compound COC1=CC=CC(CC(CS(O)(=O)=O)OC=2C(=CC(CCCS(O)(=O)=O)=CC=2)OC)=C1O FOGYNLXERPKEGN-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- GYUYMSLHLJELEO-UHFFFAOYSA-L C1=CC=CC=2C(C3=CC=CC=C3C(C12)=O)=O.S(=O)([O-])[O-].[K+].[K+] Chemical compound C1=CC=CC=2C(C3=CC=CC=C3C(C12)=O)=O.S(=O)([O-])[O-].[K+].[K+] GYUYMSLHLJELEO-UHFFFAOYSA-L 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- NPYPAHLBTDXSSS-UHFFFAOYSA-N Potassium ion Chemical compound [K+] NPYPAHLBTDXSSS-UHFFFAOYSA-N 0.000 description 1
- 239000004285 Potassium sulphite Substances 0.000 description 1
- 229920002522 Wood fibre Polymers 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910001414 potassium ion Inorganic materials 0.000 description 1
- 239000001120 potassium sulphate Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 235000015424 sodium Nutrition 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002025 wood fiber Substances 0.000 description 1
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- Fertilizers (AREA)
Abstract
The present invention belongs to the technical fields of chemical industry and papermaking, particularly to a method for pulping by a cellulose containing raw material which uses a potassium containing compound to cook a medical agent. The pulping method comprises the following steps: (a), the medical agent and the fiber raw material are cooked by the potassium containing compound to obtain the mixture of pulp and pulping waste liquor; (b), the pulping waste liquor is extracted, and slurry is washed; (c), the pulping waste liquor is concentrated; (d), after the waste liquor is concentrated, an organic potassium fertilizer is produced in a spray drying mode or the concentrated waste liquor and other fertilizer raw materials produce an organic compound fertilizer. The technology leads the pulping waste liquor to obtain comprehensive utilization under low operation cost, the idea of circulating economy is incarnated, and the serious environmental pollution which is caused by the direct discharge of the pulping waste liquor to a water body is avoided.
Description
One, technical field
Present technique relates to chemical industry, field of papermaking, particularly relates to a kind of cellulosic method of non-cellulose material production of removing from cellulose containing raw material.
Two, background technology
Existing soda pulping process is mainly the soda method, in extensive pulp mill, by well-known alkali reclaiming method pulping waste liquor is handled, and promptly adopts behind the waste liquid concentration and evaporation, burns, causticization, produces the NaOH reuse.This process program is only applicable to sweeping enterprise, and medium and small slurrying enterprise can't adopt because investment is big, skill level is high.The soda black liquor of pulp making can not directly be applied as agricultural fertilizer, and this is because its sodium ion that contains is too high, and is harmful to plant growing.The pulping waste liquor of ammonium sulfite can directly be applied as agricultural fertilizer, but there is the paper pulp darker in color in ammonium sulfite slurrying, difficult bleaching, raw material dress pot amount less, the digesting apparatus seriously corroded, the volatilization of ammonia under rotten slurry harm and ammonium sulfite cooking liquid or its pulping waste liquor high temperature is arranged, cause the problem of atmosphere pollution.
Chinese patent CN1450226A (open day: disclose a kind of low-cost digestant and using method thereof on October 22nd, 2003), the mixture that it adopts ammonium sulfite and potassium hydroxide to form is a digestant, its ammonium sulfite ratio is 70%-90%, and the 15%-20% of straw weight is pressed in the use of digestant in paper technology.This technology exists ammonium sulfite ratio that adds and the problem of measuring high (addition is the 10.5%-18% of straw weight), can't avoid the volatilization and the paper pulp darker in color of ammonia in the neutral ammonium sulfite process, defectives such as difficult bleaching.
Canadian Patent CN86104368A (open day: disclose a kind of method that from the slip of ligno-cellulosic materials, prepares sylvite on February 25th, 1987), it adopts a kind of potash water boiling liquid boiling ligno-cellulosic materials, obtain the water slurry of the part delignification paper pulp of ligno-cellulosic materials, and from useless potash water boiling liquid separating pulp, and concentrate this waste liquid, from concentrating spent liquor, reclaim the sylvite that comprises potash, potassium sulfate and lignosulfonic acid potassium.At least a potassium hydroxide, potash, potassium sulfide, potassium sulfite, the potassium bisulfite of being selected from of described cooking liquor, and their mixture.
" research of Characteristics of Bagasse Potassium Sulfite Pulping " (Chinese papermaking, the fourth phase, in August, 1994, the 38-42 page or leaf) and " wheat straw with alkaline potassium sulfite-anthraquinone pulping process and delignification dynamics " (Chinese papermaking journal, the 12nd volume, 1997, the 10-17 page or leaf) be that raw material has carried out potassium sulphite process slurrying with bagasse and wheat straw respectively, its slurrying result with etc. the sodium base bisulfite pulping of molar concentration come to the same thing, promptly the potassium sulfite addition is 1.5 times of sodium sulfite approximately.Also introduced two kinds of processing methods of potassium sulfite pulping waste liquor in the literary composition: a kind of is can obtain potassium sulphate fertilizer behind the oxidizing fire, and another kind directly is used as agricultural fertilizer with the potassium sulfite pulping waste liquor.
The problem that above technology is maximum in actual applications, it is exactly pulp-making agent addition height, the potassium compound addition is sodium compound or ammonium compounds addition 1.5 times approximately, the price of potassium compound is higher than the price that is extensive use of sodium or ammonium compounds at present again far away simultaneously, when reaching identical slurrying as a result the time, the income that obtains when the potassium ion in the waste liquid is used as fertilizer, potassium compound causes the treating waste liquid operating cost to increase than the expense of sodium compound or the ammonium compounds input of Duoing in the time of also can not remedying slurrying far away.Therefore this pulping process in actual production will be difficult to obtain practical application.When directly the liquid waste liquid being used as agricultural fertilizer, the value of potassium can't obtain reclaiming in its waste liquid, simultaneously because the seasonality that field irrigation is used has bigger conflicting with the continuity of waste liquid production, outside the operating period of field irrigation nearby, have only black liquor of pulp making is entered the river course, cause the water body severe contamination.
Three, summary of the invention
1, goal of the invention: the technical issues that need to address of the present invention are to disclose the method for a kind of cellulose containing raw material with the slurrying of potassium-containing compound steaming preparation.In potassium compound steaming preparation pulping process, introduced in the fertilizer composition that waste liquid is made and can be used as nutrient, but price is well below the sodium compound or the ammonium compounds of potassium compound, substitute the part potassium compound as steaming preparation, expensive potassium compound steaming preparation addition is significantly reduced, pulping waste liquor obtains administering under low operating cost, with overcome pulping waste liquor that prior art exists administer investment big, limited by the slurrying scale; The high defective of operating cost can't be administered or administer to medium and small papermaking enterprise pulping waste liquor, to satisfy the demand that enterprises in pulp and paper industry is produced.
2, technical scheme: employed cellulose containing raw material in the pulp-making method of the present invention both can be a wood fiber raw material, also can be non-wood fibrous raw material, for example bamboo, wheat straw, straw, bagasse, reed.
Method of the present invention comprises the steps:
Cellulose containing raw material is put into pressure vessel, and in the promptly airtight reactor or boiling vessel, the steaming mixed medicament of forming with sodium compound, potassium compound, ammonium compounds and digesting assistant joins in the pressure vessel then.Wherein the sodium compound steaming preparation comprises and at least aly is selected from NaOH, sodium carbonate, vulcanized sodium, sodium sulfite, sodium hydrogensulfite, or several mixture arbitrarily in them.The sodium compound addition with by the cellulose containing raw material oven dry weight percentage of boiling, in 0.1%～20% scope.Wherein the potassium compound steaming preparation comprises and at least aly is selected from potassium hydroxide, potash, potassium sulfide, potassium sulfite, potassium bisulfite, or several mixture arbitrarily in them.The potassium compound addition with by the cellulose containing raw material oven dry weight percentage of boiling, in 0.1%～30% scope.Wherein the ammonium compounds steaming preparation comprises and at least aly is selected from ammonium sulfite, ammonium bisulfite, urea, or several mixture arbitrarily in them.The addition of ammonium compounds with by the cellulose containing raw material weight over dry percentage of boiling, in＞0～10% scope; Wherein digesting assistant comprises anthraquinone and derivative thereof, green oxygen.The digesting assistant addition with by the cellulose containing raw material oven dry weight percentage of boiling, in 0～2% scope.
Carry out the extraction and the pulp processing of pulping waste liquor after the time of boiling, temperature, pressure and pulping by cooking are finished, pulp processing comprises defibrination or bleaching, is familiar with for the technical staff in chemical pulping field.Wherein paper pulp can be chemical pulp, or semi-chemical pulp, or sulfonation machine slurry or chemi-mechanical pulp, or blasting procedure mechanical pulp or Alkaline Peroxide Mechanical Pulp or CTMP.
Concentrate after pulping waste liquor is extracted out, pulping waste liquor can be concentrated to the solids content of dissolving, by said liquid weight, in 10%～70% scope.The black liquor that will carry out then after spray drying production organic potassic fertilizer maybe will concentrate is produced mixed organic fertilizer with other chemical fertilizer raw material.
3, advantage: the present invention is with the prior art following advantage of having compared:
(1) because sodium compound, ammonium compounds and potassium compound carry out slurrying as steaming preparation jointly, under the prerequisite that pulp property remains unchanged, the amount that potassium compound adds reduces, and the slurrying cost descends greatly, and the operating cost that pulping waste liquor is administered also reduces greatly.Overcome the defective of ammonium sulfite slurrying simultaneously, all right conduct of nitrogen in the pulping waste liquor or an amount of sodium ion is to useful, the valuable nutrient of plant growing.
(2) slurrying enterprise is under the unrestricted condition of production scale, pulping waste liquor can access effective improvement under low operating cost, and pulping waste liquor is fully utilized is agricultural fertilizer, embodied circular economy concept, also avoided the direct discharging of pulping waste liquor, caused serious environmental to pollute to water body.
Four, the specific embodiment
For technical scheme of the present invention is described better, the spy provides following examples, but embodiments of the invention are not limited to this.
Embodiment 1
In volume is 15 liters batch (-type) boiling vessel, use 3050 gram wood chips after getting the raw materials ready, moisture content is 955 grams in the wood chip.Liquor ratio is 1: 6, and the oven dry weight percentage of sodium compound addition and wood chip is 0.1% (the sodium compound addition is 2 grams) in the steaming preparation; The oven dry weight percentage of potassium compound addition and wood chip is 30% (the potassium compound addition is 629 grams); Do not add ammonium compounds and digesting assistant, boiling heats up.Heat to 105 ℃ from environment temperature and carry out little steam bleeding 1 time, continuing to be warmed up to maximum temperature then is 172 ℃.Heating-up time was total up to 180 minutes, was 120 minutes in the maximum temperature temperature retention time.
After boiling finishes, from boiling vessel, emit cooking waste liquor and chemical pulp,, pulping waste liquor is pushed out by hydraulic extrusion press.Extrude paper pulp behind the waste liquid through fully washing, and remove and clean too much water in the paper pulp of back, behind defiberizing machine, carry out water balance, then paper pulp is handled (pulp processing comprises defibrination or bleaching).Measure the yield of chemical pulp and Ka Bai valency (paper pulp yield is 48%, card uncle valency be 69) behind the water balance.The black liquor of pulp making that squeezes out carries out inspissation by board-like or tubular evaparator, and it is 70% that black liquor of pulp making is concentrated to the solid content amount (by said liquid weight) of dissolving in the waste liquid, makes organic potassic fertilizer by spray drying device then.Perhaps solid concentration is to add other chemical fertilizer raw material in 70% the black liquor, and granulation in comminutor generates mixed organic fertilizer after drying, cooling, the screening.
Result of the test shows that the fertilizer of present technique gained paper pulp and black liquor preparation reaches the requirement of respective country standard.
Embodiment 2
In volume is 15 liters batch (-type) boiling vessel, use 2800 gram bamboo chips after getting the raw materials ready, moisture content is 552 grams in the bamboo chip.Liquor ratio is 1: 6, and the oven dry weight percentage of sodium compound addition and bamboo chip is 20% (the sodium compound addition is 450 grams) in the steaming preparation; The oven dry weight percentage of potassium compound addition and bamboo chip is 0.1% (the potassium compound addition is 2 grams); The oven dry weight percentage of ammonium compounds addition and bamboo chip is 5% (the ammonium compounds addition is 141 grams).The oven dry weight percentage of digesting assistant addition and bamboo chip is 2% (the digesting assistant addition is 45 grams), and boiling heats up.Heat to 105 ℃ from environment temperature and carry out little steam bleeding 1 time, continuing to be warmed up to maximum temperature then is 165 ℃.Heating-up time was total up to 150 minutes, was 120 minutes in the maximum temperature temperature retention time.
The chemical pulp yield and the Ka Bai valency of slurrying results are respectively 45% and 22, and it is 50% that black liquor of pulp making is concentrated to the solid content amount (by said liquid weight) of dissolving in the waste liquid.Other technology is with embodiment 1.
Result of the test shows that the fertilizer of present technique gained paper pulp and black liquor preparation reaches the requirement of respective country standard.
Embodiment 3
In volume is 15 liters batch (-type) boiling vessel, use 1100 gram wheat straws after getting the raw materials ready, moisture content is 88 grams in the wheat straw.Liquor ratio is 1: 6, and the oven dry weight percentage of sodium compound addition and wheat straw is 10% (the sodium compound addition is 132 grams) in the steaming preparation; The oven dry weight percentage of potassium compound addition and wheat straw is 15% (the potassium compound addition is 152 grams); The oven dry weight percentage of ammonium compounds addition and wheat straw is 10% (the ammonium compounds addition is 101 grams); The oven dry weight percentage of digesting assistant addition and wheat straw is 1% (the digesting assistant addition is 10 grams), and boiling heats up.Heat to 105 ℃ from environment temperature and carry out little steam bleeding 1 time, continuing to be warmed up to maximum temperature then is 160 ℃.Heating-up time was total up to 100 minutes, was 120 minutes in the maximum temperature temperature retention time.
The chemical pulp yield and the Ka Bai valency of slurrying results are respectively 50% and 16, and it is 40% that black liquor of pulp making is concentrated to the solid content amount (by said liquid weight) of dissolving in the waste liquid.Other technology is with embodiment 1.
Result of the test shows that the fertilizer of present technique gained paper pulp and black liquor preparation reaches the requirement of respective country standard.
Embodiment 4
In volume is 15 liters batch (-type) boiling vessel, use 1100 gram wheat straws after getting the raw materials ready, moisture content is 88 grams in the wheat straw.Liquor ratio is 1: 6, and the oven dry weight percentage of sodium compound addition and wheat straw is 5% (the sodium compound addition is 51 grams) in the steaming preparation; The oven dry weight percentage of potassium compound addition and wheat straw is 10% (the potassium compound addition is 101 grams); The oven dry weight percentage of digesting assistant addition and wheat straw is 0.05% (the digesting assistant addition is 0.5 gram), does not add ammonium compounds, and boiling heats up.Heat to 105 ℃ from environment temperature and carry out little steam bleeding 1 time, continuing to be warmed up to maximum temperature then is 150 ℃.Heating-up time was total up to 60 minutes, was 30 minutes in the maximum temperature temperature retention time.
The semichemical wood pulp yield and the Ka Bai valency of slurrying results are respectively 68% and 46, and it is 35% that black liquor of pulp making is concentrated to the solid content amount (by said liquid weight) of dissolving in the waste liquid.Other technology is with embodiment 1.
Result of the test shows that the fertilizer of present technique gained paper pulp and black liquor preparation reaches the requirement of respective country standard.
Embodiment 5
In volume is 15 liters batch (-type) boiling vessel, use 3050 gram wood chips after getting the raw materials ready, moisture content is 955 grams in the wood chip.Liquor ratio is 1: 6, and the oven dry weight percentage of sodium compound addition and wood chip is 6% (the sodium compound addition is 126 grams) in the steaming preparation; The oven dry weight percentage of potassium compound addition and wood chip is 12% (the potassium compound addition is 251 grams); The oven dry weight percentage of digesting assistant addition and bamboo chip is 0.1% (the digesting assistant addition is 2 grams), does not add ammonium compounds.Boiling heats up.Heat to 105 ℃ from environment temperature and carry out little steam bleeding 1 time, continuing to be warmed up to maximum temperature then is 160 ℃.Heating-up time was total up to 120 minutes, was 120 minutes in the maximum temperature temperature retention time.
The semichemical wood pulp yield and the Ka Bai valency of slurrying results are respectively 76% and 102, and it is 45% that black liquor of pulp making is concentrated to the solid content amount (by said liquid weight) of dissolving in the waste liquid.Other technology is with embodiment 1.
Result of the test shows that the fertilizer of present technique gained paper pulp and black liquor preparation reaches the requirement of respective country standard.
Claims (5)
1. the pulping process of a cellulose containing raw material, may further comprise the steps: (1) uses potassium-containing compound steaming preparation boiling cellulose containing raw material, obtain the mixture of paper pulp and pulping waste liquor, wherein the potassium-containing compound steaming preparation comprises following composition: (a) sodium compound, comprise at least a NaOH, sodium carbonate, vulcanized sodium, sodium sulfite, the sodium hydrogensulfite of being selected from, or any several mixture in them, its addition with by the cellulose containing raw material oven dry weight percentage of boiling, in 0.1%～20% scope; (b) potassium compound, comprise at least a potassium hydroxide, potash, potassium sulfide, potassium sulfite, the potassium bisulfite of being selected from, or any several mixture in them, its addition with by the cellulose containing raw material oven dry weight percentage of boiling, in 0.1%～30% scope; (c) ammonium compounds comprises at least aly being selected from ammonium sulfite, ammonium bisulfite, urea, or several mixture arbitrarily in them, its addition with by the cellulose containing raw material oven dry weight percentage of boiling, in greater than 0～10% scope; (d) digesting assistant comprises anthraquinone or green oxygen, its addition with by the cellulose containing raw material oven dry weight percentage of boiling, in 0～2% scope; (2) carry out the extraction and the pulp processing of pulping waste liquor; (3) concentrate this pulping waste liquor; (4) this waste liquid concentrates back spray drying production organic potassic fertilizer or produces mixed organic fertilizer with other chemical fertilizer raw material.
2. the method in the claim 1, wherein paper pulp is chemical pulp, or semi-chemical pulp, or sulfonation machine slurry or chemi-mechanical pulp, or blasting procedure mechanical pulp or Alkaline Peroxide Mechanical Pulp or CTMP.
3. according to the method in the claim 1, wherein the pulping waste liquor that is generated is concentrated to the solids content of dissolving, by said liquid weight, in 10%～70% scope.
4. according to the method in the claim 3, wherein pulping waste liquor is spray-dried, produces organic potassic fertilizer.
5. according to the method in the claim 3, wherein pulping waste liquor is produced mixed organic fertilizer with other chemical fertilizer raw material.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410070656 CN1261640C (en) | 2004-07-28 | 2004-07-28 | Method for producing pulp by potassium containing compound as steaming preparation with cellulose containing raw material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200410070656 CN1261640C (en) | 2004-07-28 | 2004-07-28 | Method for producing pulp by potassium containing compound as steaming preparation with cellulose containing raw material |
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| Publication Number | Publication Date |
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| CN1587501A CN1587501A (en) | 2005-03-02 |
| CN1261640C true CN1261640C (en) | 2006-06-28 |
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| CN 200410070656 Expired - Fee Related CN1261640C (en) | 2004-07-28 | 2004-07-28 | Method for producing pulp by potassium containing compound as steaming preparation with cellulose containing raw material |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2008153565A1 (en) * | 2007-06-12 | 2008-12-18 | Meadwestvaco Corporation | A fiber blend having high yield and enhanced pulp performance and method for making same |
| CN101220565B (en) * | 2008-01-30 | 2010-09-29 | 晏永祥 | Pulping method with zero discharge of sewage water |
| CN105178083A (en) * | 2014-06-08 | 2015-12-23 | 蒋寿悟 | Pulping method with zero discharge of sewage |
| CN105256624A (en) * | 2015-09-18 | 2016-01-20 | 新疆国力源投资有限公司 | Method for preparing natural color bamboo pulp |
| CN106083388A (en) * | 2016-06-28 | 2016-11-09 | 安徽荃润丰农业科技有限公司 | A kind of crop-planting foliage fertilizer |
| CN105967902A (en) * | 2016-06-28 | 2016-09-28 | 安徽荃润丰农业科技有限公司 | Topdressing fertilizer special for watermelon planting |
| CN105967901A (en) * | 2016-06-28 | 2016-09-28 | 安徽荃润丰农业科技有限公司 | Topdressing fertilizer special for strawberry planting |
| CN106192519A (en) * | 2016-07-20 | 2016-12-07 | 宁夏紫荆花纸业有限公司 | Phragmites communis KOH and NaOH mixing alkaline pulping black liquor prepare organic and inorganic fertilizer method |
| CN106087512A (en) * | 2016-07-20 | 2016-11-09 | 宁夏紫荆花纸业有限公司 | The method that wheat straw KOH and NaOH mixing alkaline pulping black liquor prepare organic and inorganic fertilizer |
| CN106192522A (en) * | 2016-07-20 | 2016-12-07 | 宁夏紫荆花纸业有限公司 | The method that Caulis et Folium Oryzae KOH and NaOH mixing alkaline pulping black liquor prepare organic and inorganic fertilizer |
| CN106192521A (en) * | 2016-07-20 | 2016-12-07 | 宁夏紫荆花纸业有限公司 | The method that corn stalk KOH and NaOH mixing alkaline pulping black liquor prepare organic and inorganic fertilizer |
| CN110387767A (en) * | 2019-06-18 | 2019-10-29 | 厦门大学 | The method of alkaline potassium-containing compound oxidative digestion delignification slurrying coproduction water-soluble fertilizer |
| CN111689807B (en) * | 2020-05-25 | 2023-01-10 | 中国制浆造纸研究院有限公司 | Method for preparing chemi-mechanical pulp by using corn straw potash process and extracting pulping waste liquid to prepare fertilizer |
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2004
- 2004-07-28 CN CN 200410070656 patent/CN1261640C/en not_active Expired - Fee Related
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