CA2743488C - Urea granulation process with an acidic scrubbing system and the subsequent integration of ammonium salt into urea granules - Google Patents
Urea granulation process with an acidic scrubbing system and the subsequent integration of ammonium salt into urea granules Download PDFInfo
- Publication number
- CA2743488C CA2743488C CA2743488A CA2743488A CA2743488C CA 2743488 C CA2743488 C CA 2743488C CA 2743488 A CA2743488 A CA 2743488A CA 2743488 A CA2743488 A CA 2743488A CA 2743488 C CA2743488 C CA 2743488C
- Authority
- CA
- Canada
- Prior art keywords
- granulator
- urea
- stage
- cndot
- scrubber
- 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.)
- Active
Links
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 155
- 239000004202 carbamide Substances 0.000 title claims abstract description 155
- 238000000034 method Methods 0.000 title claims abstract description 92
- 230000008569 process Effects 0.000 title claims abstract description 73
- 150000003863 ammonium salts Chemical class 0.000 title claims abstract description 42
- 238000005469 granulation Methods 0.000 title claims abstract description 34
- 230000003179 granulation Effects 0.000 title claims abstract description 34
- 238000005201 scrubbing Methods 0.000 title claims abstract description 33
- 239000008187 granular material Substances 0.000 title claims description 9
- 230000002378 acidificating effect Effects 0.000 title description 8
- 230000010354 integration Effects 0.000 title description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 175
- 239000000428 dust Substances 0.000 claims abstract description 88
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 79
- 239000002253 acid Substances 0.000 claims abstract description 57
- 238000001704 evaporation Methods 0.000 claims abstract description 46
- 230000008020 evaporation Effects 0.000 claims abstract description 46
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 17
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 239000002699 waste material Substances 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 239000012266 salt solution Substances 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims description 36
- 239000000203 mixture Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 11
- 239000001117 sulphuric acid Substances 0.000 claims description 11
- 235000011149 sulphuric acid Nutrition 0.000 claims description 11
- 229910000069 nitrogen hydride Inorganic materials 0.000 claims description 7
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 6
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 4
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims description 4
- 229910017604 nitric acid Inorganic materials 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 2
- 235000015165 citric acid Nutrition 0.000 claims description 2
- 239000004310 lactic acid Substances 0.000 claims description 2
- 235000014655 lactic acid Nutrition 0.000 claims description 2
- 239000007791 liquid phase Substances 0.000 claims description 2
- 235000006408 oxalic acid Nutrition 0.000 claims description 2
- 235000011007 phosphoric acid Nutrition 0.000 claims description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims 1
- 239000000047 product Substances 0.000 description 48
- 238000005516 engineering process Methods 0.000 description 35
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 15
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 14
- 239000001166 ammonium sulphate Substances 0.000 description 14
- 235000011130 ammonium sulphate Nutrition 0.000 description 14
- 239000000243 solution Substances 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 11
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- 239000003337 fertilizer Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000011109 contamination Methods 0.000 description 5
- 238000011084 recovery Methods 0.000 description 4
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000012467 final product Substances 0.000 description 3
- 150000002978 peroxides Chemical class 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 229930006000 Sucrose Natural products 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013681 dietary sucrose Nutrition 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229960004793 sucrose Drugs 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea compounds
- C05C9/005—Post-treatment
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C3/00—Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor
- C05C3/005—Post-treatment
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/10—Solid or semi-solid fertilisers, e.g. powders
- C05G5/12—Granules or flakes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Fertilizers (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Separation Of Particles Using Liquids (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP08020708A EP2192099A1 (en) | 2008-11-28 | 2008-11-28 | Urea granulation process with an acidic scrubbing system and the subsequent integration of ammonium salt into urea granules |
| EP08020708.7 | 2008-11-28 | ||
| PCT/EP2009/007953 WO2010060535A1 (en) | 2008-11-28 | 2009-11-06 | Urea granulation process with an acidic scrubbing system and the subsequent integration of ammonium salt into urea granules |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2743488A1 CA2743488A1 (en) | 2010-06-03 |
| CA2743488C true CA2743488C (en) | 2017-12-05 |
Family
ID=40521831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2743488A Active CA2743488C (en) | 2008-11-28 | 2009-11-06 | Urea granulation process with an acidic scrubbing system and the subsequent integration of ammonium salt into urea granules |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US8466315B2 (enExample) |
| EP (2) | EP2192099A1 (enExample) |
| JP (1) | JP5723782B2 (enExample) |
| CN (1) | CN102227392B (enExample) |
| AR (1) | AR075554A1 (enExample) |
| BR (1) | BRPI0921863B1 (enExample) |
| CA (1) | CA2743488C (enExample) |
| PE (1) | PE20120243A1 (enExample) |
| RU (1) | RU2485077C2 (enExample) |
| WO (1) | WO2010060535A1 (enExample) |
Families Citing this family (45)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2192099A1 (en) * | 2008-11-28 | 2010-06-02 | Uhde Fertilizer Technology B.V. | Urea granulation process with an acidic scrubbing system and the subsequent integration of ammonium salt into urea granules |
| EP2301917A1 (en) * | 2009-09-16 | 2011-03-30 | Stamicarbon B.V. | Removal of urea and ammonia from exhaust gases |
| DE102011016759A1 (de) | 2011-04-12 | 2012-10-18 | Thyssenkrupp Uhde Gmbh | Verfahren zur Herstellung von NH3 |
| CN104284883A (zh) * | 2012-05-03 | 2015-01-14 | 斯塔米卡邦有限公司 | 尿素制备设备 |
| EP2662349A1 (en) * | 2012-05-08 | 2013-11-13 | Uhde Fertilizer Technology B.V. | Urea granulation process with scrubbing system |
| NL2009295C2 (en) * | 2012-08-08 | 2014-02-11 | Green Granulation Technology Ltd | Method for manufacturing granules from a liquid. |
| EP2746244A1 (en) | 2012-12-21 | 2014-06-25 | Uhde Fertilizer Technology B.V. | Method for reducing the visible downwind detached plume opacity |
| ITMI20130847A1 (it) | 2013-05-24 | 2014-11-25 | Saipem Spa | Metodo e sistema per il recupero di solfato di ammonio da un flusso gassoso di un impianto urea |
| HRP20180430T1 (hr) * | 2013-07-05 | 2018-05-04 | Stamicarbon B.V. | Uklanjanje prašine iz krutih čestica uree |
| NZ717253A (en) | 2013-08-23 | 2017-12-22 | Koch Agronomic Services Llc | Urea and nitrogen stabilizer compositions |
| CN103432847B (zh) * | 2013-09-10 | 2016-08-03 | 安徽淮化股份有限公司 | 一种处理硝酸铵造粒塔尾气的方法及装置 |
| AU2014351079B2 (en) | 2013-11-15 | 2018-08-16 | Stamicarbon B.V. | An apparatus and method for particulate capture from gas streams and a method of removing soluble particulate from a gas |
| US9586169B2 (en) | 2014-02-05 | 2017-03-07 | Green Granulation Technology Limited | Method for manufacturing granules from a liquid |
| DE102014108703A1 (de) | 2014-06-20 | 2015-12-24 | Thyssenkrupp Ag | Harnstoffzusammensetzung und Verfahren zu ihrer Herstellung |
| EP3020702A1 (en) | 2014-11-12 | 2016-05-18 | Casale SA | Urea finishing process with acid scrubbing |
| LT3224223T (lt) * | 2014-11-27 | 2019-07-25 | Stamicarbon B.V. | Karbamido ir amonio nitrato (uan) gamybos būdas ir įrenginys |
| DE102015122070A1 (de) * | 2015-12-17 | 2017-06-22 | Thyssenkrupp Ag | Harnstoffhaltige Düngemittel und Verfahren zu ihrer Herstellung |
| AR107114A1 (es) * | 2015-12-21 | 2018-03-21 | Stamicarbon | Producción de nitrato de amonio-urea |
| US10730002B2 (en) * | 2016-05-09 | 2020-08-04 | Stamicarbon B.V. | Submicron particle removal from gas streams |
| NL2016915B1 (en) * | 2016-06-08 | 2017-12-18 | Green Granulation Tech Limited | Fluidized bed granulation |
| PL3484601T3 (pl) | 2016-07-15 | 2020-11-16 | Thyssenkrupp Fertilizer Technology Gmbh | Zastosowanie kompozycji mocznika do wytwarzania płynu do układów wydechowych silników wysokoprężnych |
| EP3315192B1 (en) * | 2016-10-27 | 2021-12-15 | YARA International ASA | Fluidized bed granulation |
| DE102017203251A1 (de) * | 2017-02-28 | 2018-08-30 | Thyssenkrupp Ag | Verfahren zur Reinigung der Abluft einer Granulierungsanlage zur Herstellung eines harnstoffhaltigen Granulats |
| JP6851869B2 (ja) * | 2017-03-17 | 2021-03-31 | 東洋エンジニアリング株式会社 | 尿素の造粒方法 |
| CN107715676A (zh) * | 2017-10-10 | 2018-02-23 | 鲁西化工集团股份有限公司煤化工分公司 | 一种降低尿素造粒塔尾气氨含量的生产工艺 |
| EP3508465B1 (de) | 2018-01-08 | 2023-11-29 | thyssenkrupp Fertilizer Technology GmbH | Prallbleche im fliessbettkühler |
| JP7144528B2 (ja) | 2018-03-23 | 2022-09-29 | ティッセンクルップ フェルティリツァー テクノロジー ゲゼルシャフト ミット ベシュレンクテル ハフツング | 流動層造粒機または流動層クーラ用の分割された有孔板 |
| EP3542893A1 (de) | 2018-03-23 | 2019-09-25 | thyssenkrupp Fertilizer Technology GmbH | Fliessbettgranulator oder fliessbettkühler mit beschichteter perforierter platte |
| US12065389B2 (en) | 2018-03-23 | 2024-08-20 | Thyssenkrupp Fertilizer Technology Gmbh | Fluid-bed granulator system with coating material to prevent dust buildup in the air systems of urea granulation plants |
| EP3560907B1 (en) | 2018-04-23 | 2021-01-06 | thyssenkrupp Fertilizer Technology GmbH | Urea production plant and scrubbing system |
| JP7201708B2 (ja) | 2018-05-08 | 2023-01-10 | ティッセンクルップ フェルティリツァー テクノロジー ゲゼルシャフト ミット ベシュレンクテル ハフツング | 流動層造粒プラントのための内部冷却システム |
| EP3581265B1 (de) | 2018-06-12 | 2024-12-04 | thyssenkrupp Fertilizer Technology GmbH | Sprühdüse zur herstellung eines harnstoff-schwefel düngers |
| EP3593898B1 (en) | 2018-07-13 | 2021-09-01 | thyssenkrupp Fertilizer Technology GmbH | Producing fertilizer granules with a defined size distribution |
| DE102019216894A1 (de) | 2019-10-31 | 2021-05-06 | Thyssenkrupp Ag | Fließbettgranulator |
| DE102019216931A1 (de) * | 2019-11-04 | 2021-05-06 | Thyssenkrupp Ag | Verfahren und Anlage zur Herstellung von Harnstoffgranulat |
| JP7311715B2 (ja) * | 2019-12-30 | 2023-07-19 | スタミカーボン・ベー・フェー | 複数の蒸発器を用いた尿素製造 |
| AU2020416395B2 (en) | 2019-12-30 | 2023-02-02 | Stamicarbon B.V. | Urea plant with chilled condensation section |
| US11912649B2 (en) | 2019-12-30 | 2024-02-27 | Stamicarbon B.V. | Ammonia removal from urea finishing |
| PL3848341T3 (pl) * | 2020-01-08 | 2024-06-24 | Thyssenkrupp Fertilizer Technology Gmbh | Sposób i urządzenie do wytwarzania nawozu |
| EP3907208A1 (en) | 2020-05-08 | 2021-11-10 | Yara International ASA | Urea ammonium sulfate-based composition |
| CN112742303B (zh) * | 2021-01-07 | 2022-06-10 | 黄超 | 集成式氧化铝粉造粒系统 |
| EP4029601A1 (en) * | 2021-01-13 | 2022-07-20 | Green Granulation Ltd. | Plant and process of granulating urea ammonia sulphate |
| DE102021202869A1 (de) * | 2021-03-24 | 2022-09-29 | Thyssenkrupp Ag | Anlage und Verfahren zur Herstellung von Harnstoffgranulat |
| WO2023161236A1 (en) * | 2022-02-22 | 2023-08-31 | Tessenderlo Group Nv | Methods for the production of a solid urea-thiosulfate fertilizer |
| US20250178913A1 (en) * | 2023-07-27 | 2025-06-05 | Stamicarbon B.V. | System and processs for the production of uan |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3798021A (en) * | 1972-08-21 | 1974-03-19 | Foster Wheeler Corp | Pollution elimination for fertilizer process |
| US4370198A (en) | 1980-03-13 | 1983-01-25 | Mta Muszaki Kemiai Kutato Intezet | Method and apparatus for the recovery of the solid material content of solutions and/or suspensions as granules in a gas fluidized bed |
| US4493820A (en) * | 1982-10-01 | 1985-01-15 | Gardinier, Inc. | Process for partial removing of impurities from a wet process phosphoric acid |
| FI70202C (fi) * | 1984-06-20 | 1986-09-15 | Kemira Oy | Saett att aotervinna naeringsmedel fraon avgaserna av en np-konstgoedselfabrik |
| CN85100950A (zh) * | 1985-04-01 | 1987-01-10 | 基米勒公司 | 混合肥料的生产方法 |
| IT1249057B (it) * | 1991-05-22 | 1995-02-11 | Agrimont Spa | Processo per abbattere con un liquido l'ammoniaca contenuta in uno sfiato. |
| ATE139463T1 (de) * | 1992-08-07 | 1996-07-15 | Hydro Agri Sluiskil Bv | Verfahren zur herstellung von harnstoffgranulaten |
| JPH09227493A (ja) * | 1996-02-27 | 1997-09-02 | Toyo Eng Corp | 排ガス中からの尿素ダスト及びアンモニアの回収方法 |
| NL1002862C2 (nl) | 1996-04-15 | 1997-10-17 | Dsm Nv | Werkwijze voor het bereiden van granules. |
| JPH09313860A (ja) | 1996-05-27 | 1997-12-09 | Shigeru Saito | 湿式同時除害、除塵ガス処理装置及び方法 |
| JP2000001466A (ja) * | 1998-06-12 | 2000-01-07 | Toyo Eng Corp | 排ガス中の尿素ダスト及びアンモニアの回収・利用方法 |
| JP2000095591A (ja) * | 1998-09-18 | 2000-04-04 | Chiyoda Corp | ダスト含有空気の洗浄設備 |
| JP2000279736A (ja) * | 1999-03-29 | 2000-10-10 | Toyo Eng Corp | 尿素ダスト及びアンモニアを含有する流体の処理装置、それを用いた処理方法及びそれを付設した尿素製造装置 |
| FI116288B (fi) * | 1999-07-08 | 2005-10-31 | Kemira Growhow Oyj | Ureafosfaattiprosessin emäliuoksen käsittelymenetelmä |
| NL1020665C2 (nl) | 2002-05-23 | 2003-11-25 | Dsm Nv | Werkwijze voor het verwijderen van ammoniak uit een ammoniak-bevattende gasstroom. |
| DE10346519A1 (de) * | 2003-10-02 | 2005-05-04 | Uhde Gmbh | Verfahren zur Entfernung von Ammoniak und Staub aus einem Abgas, das bei der Herstellung von Düngemitteln anfällt |
| CN1303041C (zh) * | 2004-02-06 | 2007-03-07 | 河北天人化工股份有限公司 | 一种氮磷或氮磷钾复合肥的制备方法 |
| CN100556503C (zh) * | 2006-08-01 | 2009-11-04 | 智胜化工股份有限公司 | 一种净化尿素造粒塔粉尘的方法 |
| CN200974818Y (zh) * | 2006-12-07 | 2007-11-14 | 张军保 | 尿素造粒尾气的气液并流式冷却洗涤器 |
| EP2192099A1 (en) * | 2008-11-28 | 2010-06-02 | Uhde Fertilizer Technology B.V. | Urea granulation process with an acidic scrubbing system and the subsequent integration of ammonium salt into urea granules |
-
2008
- 2008-11-28 EP EP08020708A patent/EP2192099A1/en not_active Withdrawn
-
2009
- 2009-11-06 BR BRPI0921863-7A patent/BRPI0921863B1/pt active IP Right Grant
- 2009-11-06 CN CN200980147420.XA patent/CN102227392B/zh active Active
- 2009-11-06 WO PCT/EP2009/007953 patent/WO2010060535A1/en not_active Ceased
- 2009-11-06 US US12/998,733 patent/US8466315B2/en active Active
- 2009-11-06 RU RU2011126345/13A patent/RU2485077C2/ru active
- 2009-11-06 CA CA2743488A patent/CA2743488C/en active Active
- 2009-11-06 EP EP09756253.2A patent/EP2362863B1/en active Active
- 2009-11-06 PE PE2011001076A patent/PE20120243A1/es not_active Application Discontinuation
- 2009-11-06 JP JP2011537866A patent/JP5723782B2/ja active Active
- 2009-11-27 AR ARP090104595A patent/AR075554A1/es active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010060535A1 (en) | 2010-06-03 |
| JP2012509833A (ja) | 2012-04-26 |
| EP2362863B1 (en) | 2017-06-14 |
| BRPI0921863B1 (pt) | 2020-12-15 |
| CA2743488A1 (en) | 2010-06-03 |
| AR075554A1 (es) | 2011-04-20 |
| US8466315B2 (en) | 2013-06-18 |
| EP2192099A1 (en) | 2010-06-02 |
| JP5723782B2 (ja) | 2015-05-27 |
| CN102227392B (zh) | 2014-04-09 |
| CN102227392A (zh) | 2011-10-26 |
| US20110229394A1 (en) | 2011-09-22 |
| RU2011126345A (ru) | 2013-01-10 |
| PE20120243A1 (es) | 2012-04-14 |
| BRPI0921863A2 (pt) | 2020-08-11 |
| EP2362863A1 (en) | 2011-09-07 |
| RU2485077C2 (ru) | 2013-06-20 |
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