PL56428B1 - - Google Patents
Download PDFInfo
- Publication number
- PL56428B1 PL56428B1 PL107888A PL10788865A PL56428B1 PL 56428 B1 PL56428 B1 PL 56428B1 PL 107888 A PL107888 A PL 107888A PL 10788865 A PL10788865 A PL 10788865A PL 56428 B1 PL56428 B1 PL 56428B1
- Authority
- PL
- Poland
- Prior art keywords
- ammonia
- solution
- decomposition
- carbamate
- pressure
- Prior art date
Links
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 58
- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 54
- 239000004202 carbamide Substances 0.000 claims description 27
- 238000000354 decomposition reaction Methods 0.000 claims description 23
- CURLTUGMZLYLDI-UHFFFAOYSA-N carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 18
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 18
- 239000001569 carbon dioxide Substances 0.000 claims description 18
- 230000015572 biosynthetic process Effects 0.000 claims description 17
- 239000007795 chemical reaction product Substances 0.000 claims description 16
- BVCZEBOGSOYJJT-UHFFFAOYSA-N Ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 14
- 238000003786 synthesis reaction Methods 0.000 claims description 14
- 230000002194 synthesizing Effects 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- VHUUQVKOLVNVRT-UHFFFAOYSA-N ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 9
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 8
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 8
- 239000006096 absorbing agent Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000004064 recycling Methods 0.000 claims description 7
- 235000019796 monopotassium phosphate Nutrition 0.000 claims description 2
- 239000000376 reactant Substances 0.000 claims description 2
- 238000001704 evaporation Methods 0.000 claims 3
- 238000009833 condensation Methods 0.000 claims 1
- 230000005494 condensation Effects 0.000 claims 1
- KXDHJXZQYSOELW-UHFFFAOYSA-M carbamate Chemical group NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 31
- 239000000243 solution Substances 0.000 description 20
- 239000007788 liquid Substances 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 239000012071 phase Substances 0.000 description 5
- 238000005755 formation reaction Methods 0.000 description 4
- 239000011261 inert gas Substances 0.000 description 3
- 239000011541 reaction mixture Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 206010039509 Scab Diseases 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 231100000078 corrosive Toxicity 0.000 description 1
- 231100001010 corrosive Toxicity 0.000 description 1
- 230000001627 detrimental Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000007792 gaseous phase Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000002317 scanning near-field acoustic microscopy Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL56428B1 true PL56428B1 (de) | 1968-10-25 |
Family
ID=
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5849952A (en) | Urea production process with high energy efficiency | |
| CN109890788B (zh) | 尿素与尿素-硝酸铵的集成工艺 | |
| CA1176434A (en) | Process for the removal of urea, ammonia and carbon dioxide from dilute aqueous solutions | |
| JPH06115928A (ja) | 有機物、二酸化炭素及びアンモニアを含む排ガスから、アンモニア及び有機化合物を回収する方法 | |
| US4539077A (en) | Process for the preparation of urea | |
| CN108137335B (zh) | 用于汽车环保尿素和硝酸铵尿素的尿素的一体化生产 | |
| JPH0137389B2 (de) | ||
| US4801745A (en) | Improved process for the preparation of urea | |
| EP3233792B1 (de) | Verfahren zur herstellung von harnstoff | |
| US4801746A (en) | Process for the preparation of urea | |
| US3155722A (en) | Recovery of residual ammonia and carbon dioxide in the synthesis of urea | |
| US4433146A (en) | Process for the preparation of melamine | |
| EP2521710B1 (de) | Harnstoffwäscheverfahren zur Herstellung von Harnstoff | |
| US4801747A (en) | Process for preparing urea | |
| JPS5867661A (ja) | 尿素合成法 | |
| EP0266840A1 (de) | Verfahren zur Herstellung von Harnstoff | |
| PL56428B1 (de) | ||
| US3527799A (en) | Urea synthesis process | |
| US4088684A (en) | Urea reactor effluent solution recycle in urea synthesis | |
| US3668250A (en) | Urea synthesis process | |
| JPS6058744B2 (ja) | Ｎｈ↓３とｃｏ↓２から尿素溶液を製造する方法 | |
| US3690820A (en) | Production of ammonium nitrate | |
| CN206705995U (zh) | 用于生产尿素和硝酸铵尿素的集成化系统 | |
| JPH0369346B2 (de) | ||
| Warren | Methods For The Manufacture Of Urea |