CN101475406B - Method for producing thick slurry fertilizer from industrial waste organic based on the concept of 'using waste to control waste' - Google Patents
Method for producing thick slurry fertilizer from industrial waste organic based on the concept of 'using waste to control waste' Download PDFInfo
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- CN101475406B CN101475406B CN2009101048168A CN200910104816A CN101475406B CN 101475406 B CN101475406 B CN 101475406B CN 2009101048168 A CN2009101048168 A CN 2009101048168A CN 200910104816 A CN200910104816 A CN 200910104816A CN 101475406 B CN101475406 B CN 101475406B
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- waste
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- black liquor
- coke
- thick slurry
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- 239000002699 waste material Substances 0.000 title claims abstract description 48
- 239000003337 fertilizer Substances 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000002440 industrial waste Substances 0.000 title abstract description 4
- 239000002002 slurry Substances 0.000 title abstract 3
- 238000000034 method Methods 0.000 claims abstract description 27
- 229920005610 lignin Polymers 0.000 claims abstract description 14
- 230000000593 degrading effect Effects 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 19
- NRADCUWKNUKPHY-UHFFFAOYSA-N oxalonitrile;phenol Chemical compound N#CC#N.OC1=CC=CC=C1 NRADCUWKNUKPHY-UHFFFAOYSA-N 0.000 claims description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- ZBNMBCAMIKHDAA-UHFFFAOYSA-N sodium superoxide Chemical compound [Na+].O=O ZBNMBCAMIKHDAA-UHFFFAOYSA-N 0.000 claims description 6
- 229910000144 sodium(I) superoxide Inorganic materials 0.000 claims description 6
- -1 Sodium tetrafluoroborate Chemical compound 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 229910001495 sodium tetrafluoroborate Inorganic materials 0.000 claims description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 239000011574 phosphorus Substances 0.000 claims description 3
- 239000011591 potassium Substances 0.000 claims description 3
- 229910052700 potassium Inorganic materials 0.000 claims description 3
- 239000003999 initiator Substances 0.000 abstract description 9
- 239000000126 substance Substances 0.000 abstract description 9
- 239000003795 chemical substances by application Substances 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 5
- 239000000571 coke Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000003895 organic fertilizer Substances 0.000 abstract description 2
- 239000010842 industrial wastewater Substances 0.000 abstract 1
- 238000003756 stirring Methods 0.000 description 10
- 241000196324 Embryophyta Species 0.000 description 9
- 230000015556 catabolic process Effects 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 7
- 238000006731 degradation reaction Methods 0.000 description 7
- 239000000047 product Substances 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 5
- 239000005416 organic matter Substances 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 3
- 150000002989 phenols Chemical class 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 229920002488 Hemicellulose Polymers 0.000 description 2
- 229910020808 NaBF Inorganic materials 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 2
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- 239000005696 Diammonium phosphate Substances 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 240000005373 Panax quinquefolius Species 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000003851 biochemical process Effects 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000007857 degradation product Substances 0.000 description 1
- 238000006392 deoxygenation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 1
- 229910000388 diammonium phosphate Inorganic materials 0.000 description 1
- 235000019838 diammonium phosphate Nutrition 0.000 description 1
- 238000007922 dissolution test Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 150000002475 indoles Chemical class 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 description 1
- 229910001950 potassium oxide Inorganic materials 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 241001478887 unidentified soil bacteria Species 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses a method for preparing a thick slurry fertilizer from industrial waste organic substances through use of waste to treat waste. The method comprises: mixing a waste black liquor of paper mills and a phenol-cyanogen waste liquor of coke plants, adding 'an auxiliary degrading agent' and 'an initiator', and preparing the degraded lignin thick slurry organic fertilizer at low temperature and normal pressure. The method has the advantages of use of waste to treat waste, simple equipment and technique, high fertilizer effect of products, favorability for environmental protection and the like, and is widely suitable to be used in treatment of lignin-containing industrial wastewater.
Description
Technical field the present invention relates to the method production underflow fertilizer of a kind of industrial waste organism treatment of wastes with processes of wastes against one another, more particularly, relate to a kind of paper mill waste black liquor and mix, add and help degradation agents and initiator, under little heating and normal pressure, produce lignin degrading underflow organic fertilizer with coke-oven plant's waste liquid.
Background technology in the prior art, China's paper industry constantly develops, the problem of environmental pollution of incident a large amount of waste black liquors is then outstanding further.At present, the wastewater discharge of China's paper industry occupies the first place of all types of industries quantity discharged, and is annual more than 3,500,000,000 tons, and alkaline process produces in the solid of waste black liquor, organism accounts for more than 2/3rds, mainly is made up of xylogen, hemicellulose and cellulosic degradation product and organic acid etc.; The polymkeric substance that xylogen is made up of phenols, it is the most stable, the most difficult by the material of biology and thermal conversion process degraded; The popular method is the soda recovery unit Technology the most at present, promptly black liquor is carried out the burning that acts as a fuel after the evaporation concentration, reclaims alkali and heat energy; But because there are unfavorable factors such as drainability is poor, black liquor viscosity is big, silicon content height in the solid in this waste liquid, the cost that alkali is reclaimed is very high, is in the loss of capital running status; The disposal utilization of black liquor is the difficult problem in paper mill always, up to the present, also properly is not used as a kind of resource preferably.
Also have, the coke-oven plant of Iron and Steel Enterprises in China needs to be smelt coke with coal, in with production processes such as coal system Jiao, gas purification, coke chemicals recovery, also generation contains the waste water that phenol cyanogen is the master in a large number, forms to mainly contain phenols, cyanogen, ammonia nitrogen, biphenyl, pyridine, indoles, quinoline etc.; Chemical oxygen demand (COD) (COD) concentration is generally at 1500～3500mg/L, and environmental requirement emission concentration COD is less than 200mg/L; China to 2010 year, iron and steel enterprise produces coke will reach 27,000 ten thousand tons/year, produce 20～330,000 tons/year of wastewater containing phenol and cyanide COD total amounts; Now, still handle this type of waste water with ammonia still process and biochemical process basically, it is consumes energy but also fail to solve fully the secondary environmental pollution problem not only.
In sum, how making the innoxious and resource utilization of above-mentioned waste liquid, is the urgent problem of environment protection and utilization of waste material, should seek out a kind of comparatively simple method, to above-mentioned waste liquid innoxious high-efficiency comprehensive utilization in addition.
Summary of the invention the present invention aims to provide a kind of with paper mill waste black liquor and coke-oven plant's waste liquid, the method production underflow fertilizer of the treatment of wastes with processes of wastes against one another; Promptly use chemical process, xylogen in the black liquor and coke-oven plant's phenol cyanogen waste liquid are mixed after, in the presence of " helping degradation agents " of the present invention and " initiator ", by art breading, the generation lignin degrading is the underflow fertilizer of main component.
In order to achieve the above object, the present invention has adopted following technical scheme:
One, in the waste black liquor in paper mill, adds the phenol cyanogen waste liquid that the coke-oven plant produces, after mixing, under agitation condition, add Sodium tetrafluoroborate and help degradation agents, add the sodium superoxide initiator then, heat up 60～80 ℃, normal pressure, insulation 1 hour, make the lignin degradation in the black liquor, comprise deoxygenation, side chain comes off etc., generate lignin degrading, main reaction is:
Two, the lignin degrading of Sheng Chenging is mixed nitrogen, phosphorus, potassium constant speed effective constituent again, promptly becomes efficient underflow fertilizer.
The manufacture method of lignin degrading fertilizer of the present invention comprises batch mixing, heating, degrades, is mixed, packs.Its concrete manufacturing processed is: (1) stirs with band and the uncovered equipment of stack gas passageway heating is made batch mixing, heating and degraded jar, adds moisture 55～70% paper mill waste black liquor earlier; (2) under agitation condition, add coke-oven plant's phenol cyanogen waste liquid of black liquid weight 25～35% again, phenol cyanogen waste liquid COD concentration is at 1500～3500mg/L; (3) above-mentioned material adds the powdery Sodium tetrafluoroborate while stirring, and the quantity of adding is 1.60～2.10% of black liquor weight; (4) above-mentioned material continues to add while stirring powdery sodium superoxide initiator, and the quantity that adds initiator is 0.08～0.12% of black liquor weight, and the joining day is 20～30 minutes; (5) warming while stirring then is heated to 60～80 ℃ of temperature of charge, normal pressure, be incubated 0.8～1 hour, make xylogen generation DeR, destroy xylogen and polysaccharide (Mierocrystalline cellulose, hemicellulose) interchain fat bond simultaneously and close, and form a part of salts substances; (6) add nitrogen, phosphorus, potassium auxiliary material then while stirring, use the plastic tank container package, obtain lignin degrading underflow fertilizer.
Prepared underflow fertilizer, product composition and content (being converted into butt) are: organic 30～40%, nitrogen 5～15%, Vanadium Pentoxide in FLAKES 2～7%, potassium oxide 3～10%, moisture 60～80%, also contain other organic and inorganic substance.
In implementing process of the present invention, the waste black liquor that black liquor produces for the paper mill alkaline process, moisture 55～70%; Phenol cyanogen waste liquid is the phenol cyanogen waste liquid that the coke-oven plant produces, and COD concentration is 1500～3500mg/L; Adding Sodium tetrafluoroborate is the technical grade product, chemical formula NaBF
4, molecular weight 109.81, density 2.47g/cm
3, 384 ℃ of fusing points, quality standard: Tianjin Q/HB 3-393-77 contains NaBF
4〉=98%, the water dissolution test: qualified, muriate (Cl
-1)≤0.005%, vitriol (SO
4 2-)≤0.005%, phosphoric acid salt (PO
4 3-)≤0.01%, Fe≤0.005%, heavy metal (in Pb)≤0.004%, SiO
2≤ 0.4%, it plays " helping degradation agents "; Adding sodium superoxide is the technical grade product, chemical formula NaO
2, molecular weight 54.99, density 2.2g/cm
3, 552 ℃ of fusing points, quality standard: HG6-794-75 contains available oxygen 〉=35.5%, contains calcium oxide 3.5 ± 0.5%, carbonated≤1.0%, it plays " initiator ".The above-mentioned existence that helps degradation agents and initiator can make component and lignin reactions such as phenols in the phenol cyanogen waste liquid, cyanogen, realizes under the low-temperature atmosphere-pressure lignin degrading and cyanogen class nuisance is generated salts substances, realizes the treatment of wastes with processes of wastes against one another, is principal feature of the present invention.
In implementing process of the present invention, must grasp the degree of depth that reaction is carried out, control three big factors are controlled reaction depth: (1) adds quantity, (2) temperature, (3) time of helping degradation agents and initiator.The quantity that adds is too much, temperature is too high, overlong time, all can make to react deeply to make organism resolve into NH
3, CO
2Deng material, both produced exhaust emission, lost available organic matter again; Under reverse situation, then can make reaction shallow excessively, make lignin reaction not exclusively influence fertilizer efficiency.
Compared with prior art, the present invention has following tangible advantage: (1) the present invention adopts the method for the treatment of wastes with processes of wastes against one another, solves the difficult problem that paper mill and coke-oven plant's organic liquid waste are handled simultaneously; (2) treating processes does not have " three wastes " pollution problem, for a new way is opened up in environment protection; (3) the underflow fertilizer that makes is used in farm crop, can increase the soil organism, improve the soil, increases fertility, and under the soil bacteria effect, decompose easily and emit nutrient, be the concentrated fertilizer that farm crop absorb easily; (4) device simple, method are simple, easy to implement.The present invention is suitable for containing the processing of other trade effluents of xylogen.The underflow fertilizer product is through using proof in a large number: to crop yield increase income, the ecology recovering balance, improving the soil all has significant effect; The present invention has favorable economic benefit, environmental benefit and ecological circulation benefit.
Description of drawings Fig. 1 is the process flow diagram of industrial waste organic matter production underflow fertilizer of the present invention; Clearly represented the production whole process to fertilizer among the figure from waste liquid.
Embodiment is following carries out more detailed description by specific embodiment to the present invention:
1000 kilograms of the waste black liquors of the weight in wet base 60% that produces with the paper mill alkaline process, add the coke-oven plant while stirring and contain 300 kilograms of the phenol cyanogen waste liquids of COD concentration 2500mg/L, and then add 20 kilograms of powdery Sodium tetrafluoroborates while stirring, slowly add 1 kilogram of powdery sodium superoxide more while stirring, the sodium superoxide joining day is 20 minutes, is heated to 70 ℃ then while stirring, normal pressure, be incubated 1 hour, the back adds 80 kilograms in urea, 40 kilograms of diammonium phosphate, 50 kilograms in Repone K, stir, pack with plastic tank then, promptly get 1490 kilograms of underflow fertilizer products, the consisting of of this product: organic matter: N: P
2O
5: K
2O ratio is 30: 9: 4: 6 (butt weight ratios).
Claims (1)
1. a paper mill waste black liquor and coke-oven plant's phenol cyanogen waste liquid are produced the method for lignin degrading underflow fertilizer, comprise batch mixing, heating, degraded, it is characterized in that manufacturing processed is:
(1) in moisture 55～70% paper mill waste black liquor, add coke-oven plant's phenol cyanogen waste liquid of black liquid weight 25～35% earlier, phenol cyanogen waste liquid COD concentration is at 1500～3500mg/L, then
(2) add Sodium tetrafluoroborate, the quantity of adding is 1.60～2.10% of black liquor weight, then
(3) add sodium superoxide, the quantity of adding is 0.08～0.12% of black liquor weight, then
(4) the heating temperature of charge is 60～80 ℃, and normal pressure is incubated 0.8～1 hour, obtains lignin degrading; Add nitrogen, phosphorus, potassium auxiliary material then, pack underflow fertilizer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101048168A CN101475406B (en) | 2009-01-13 | 2009-01-13 | Method for producing thick slurry fertilizer from industrial waste organic based on the concept of 'using waste to control waste' |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101048168A CN101475406B (en) | 2009-01-13 | 2009-01-13 | Method for producing thick slurry fertilizer from industrial waste organic based on the concept of 'using waste to control waste' |
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|---|---|
| CN101475406A CN101475406A (en) | 2009-07-08 |
| CN101475406B true CN101475406B (en) | 2011-10-19 |
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| CN2009101048168A Expired - Fee Related CN101475406B (en) | 2009-01-13 | 2009-01-13 | Method for producing thick slurry fertilizer from industrial waste organic based on the concept of 'using waste to control waste' |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102220135B (en) * | 2011-05-31 | 2013-04-24 | 苏州大学 | Leaching liquid for repairing organic phenol-contaminated soil and reparation method of organic phenol-contaminated soil |
| CN105936602A (en) * | 2016-04-28 | 2016-09-14 | 广州盈圃农业科技有限公司 | Method for producing sponge fertilizer from pickling waste liquid and waste lignin |
| US10593439B2 (en) * | 2016-10-21 | 2020-03-17 | Dupont Electronics, Inc. | Conductive paste composition and semiconductor devices made therewith |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1180668A (en) * | 1997-11-13 | 1998-05-06 | 四川四达生物工程产业开发股份有限公司 | Comprehensive treatment method for papermaking black liquid |
| CN1256253A (en) * | 1998-12-08 | 2000-06-14 | 中国科学院化工冶金研究所 | Biological acid process for separating lignin from alkaline paper-making black liquor |
| CN1280968A (en) * | 1999-07-16 | 2001-01-24 | 江西贵溪化肥厂 | Process for preparing organic composite N-P-K fertilizer from solidified substance in black paper-making liquid |
| CN1386709A (en) * | 2001-05-21 | 2002-12-25 | 邵建华 | Process for preparing both superfine iron oxide and compound medium- and trace-element fertilizer from rejeted resource |
-
2009
- 2009-01-13 CN CN2009101048168A patent/CN101475406B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1180668A (en) * | 1997-11-13 | 1998-05-06 | 四川四达生物工程产业开发股份有限公司 | Comprehensive treatment method for papermaking black liquid |
| CN1256253A (en) * | 1998-12-08 | 2000-06-14 | 中国科学院化工冶金研究所 | Biological acid process for separating lignin from alkaline paper-making black liquor |
| CN1280968A (en) * | 1999-07-16 | 2001-01-24 | 江西贵溪化肥厂 | Process for preparing organic composite N-P-K fertilizer from solidified substance in black paper-making liquid |
| CN1386709A (en) * | 2001-05-21 | 2002-12-25 | 邵建华 | Process for preparing both superfine iron oxide and compound medium- and trace-element fertilizer from rejeted resource |
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Effective date of registration: 20140821 Address after: Office building 515337 Guangdong city of Jieyang province Puning Meilin Zhenyuan Nanyang Township Patentee after: Green bestkind Puning City Forestry Development Co. Ltd. Address before: 518110 Guangdong city of Shenzhen province Baoan District Guanlan Street Jinshan Park Patentee before: Wen Yiqu |
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| 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: 20111019 Termination date: 20160113 |
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| DD01 | Delivery of document by public notice |
Addressee: Puning green Bao Jia Forestry Development Co., Ltd. Finance Document name: Notification of Approving Refund |
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| DD01 | Delivery of document by public notice |