NL8204495A - Werkwijze voor de bereiding van ureum. - Google Patents
Werkwijze voor de bereiding van ureum. Download PDFInfo
- Publication number
- NL8204495A NL8204495A NL8204495A NL8204495A NL8204495A NL 8204495 A NL8204495 A NL 8204495A NL 8204495 A NL8204495 A NL 8204495A NL 8204495 A NL8204495 A NL 8204495A NL 8204495 A NL8204495 A NL 8204495A
- Authority
- NL
- Netherlands
- Prior art keywords
- ammonia
- synthesis
- carbonic acid
- autoclave
- urea
- Prior art date
Links
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims description 56
- 239000004202 carbamide Substances 0.000 title claims description 55
- 238000000034 method Methods 0.000 title claims description 28
- 238000002360 preparation method Methods 0.000 title claims description 10
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 196
- 229910021529 ammonia Inorganic materials 0.000 claims description 100
- 230000015572 biosynthetic process Effects 0.000 claims description 84
- 238000003786 synthesis reaction Methods 0.000 claims description 83
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 56
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims description 30
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 claims description 22
- 239000001569 carbon dioxide Substances 0.000 claims description 22
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 229910001868 water Inorganic materials 0.000 claims description 19
- 230000008569 process Effects 0.000 claims description 13
- 239000000155 melt Substances 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 8
- 230000004044 response Effects 0.000 claims description 7
- 239000011261 inert gas Substances 0.000 claims description 5
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 239000001099 ammonium carbonate Substances 0.000 claims description 3
- 235000012501 ammonium carbonate Nutrition 0.000 claims description 3
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 230000003134 recirculating effect Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims 2
- 238000007664 blowing Methods 0.000 claims 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 44
- 239000000203 mixture Substances 0.000 description 24
- 239000000243 solution Substances 0.000 description 17
- 238000004458 analytical method Methods 0.000 description 11
- 239000007789 gas Substances 0.000 description 10
- 238000010521 absorption reaction Methods 0.000 description 9
- 239000000523 sample Substances 0.000 description 9
- 239000011541 reaction mixture Substances 0.000 description 8
- 238000000354 decomposition reaction Methods 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000004448 titration Methods 0.000 description 2
- BGNGWHSBYQYVRX-UHFFFAOYSA-N 4-(dimethylamino)benzaldehyde Chemical compound CN(C)C1=CC=C(C=O)C=C1 BGNGWHSBYQYVRX-UHFFFAOYSA-N 0.000 description 1
- 101001053401 Arabidopsis thaliana Acid beta-fructofuranosidase 3, vacuolar Proteins 0.000 description 1
- 241001416181 Axis axis Species 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 238000008083 Urea Assay Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- -1 ammonium ions Chemical class 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 125000005586 carbonic acid group Chemical group 0.000 description 1
- 238000004737 colorimetric analysis Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000012470 diluted sample Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000011552 falling film Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
- C07C273/02—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds
- C07C273/04—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds from carbon dioxide and ammonia
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18777581 | 1981-11-25 | ||
| JP56187775A JPS5890544A (ja) | 1981-11-25 | 1981-11-25 | 尿素合成法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL8204495A true NL8204495A (nl) | 1983-06-16 |
Family
ID=16211989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL8204495A NL8204495A (nl) | 1981-11-25 | 1982-11-19 | Werkwijze voor de bereiding van ureum. |
Country Status (9)
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4928740B2 (ja) * | 2005-05-31 | 2012-05-09 | 東洋エンジニアリング株式会社 | 尿素合成方法および装置 |
| JP5564497B2 (ja) | 2009-05-28 | 2014-07-30 | 東洋エンジニアリング株式会社 | カルバミン酸アンモニウム水溶液の分析方法および未反応ガス吸収槽の運転方法 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3758572A (en) * | 1971-04-26 | 1973-09-11 | Dow Chemical Co | Process for recovering urea from pyrolysis systems |
-
1981
- 1981-11-25 JP JP56187775A patent/JPS5890544A/ja active Granted
-
1982
- 1982-11-15 GB GB08232566A patent/GB2110675B/en not_active Expired
- 1982-11-15 IN IN1331/CAL/82A patent/IN159630B/en unknown
- 1982-11-19 NL NL8204495A patent/NL8204495A/nl not_active Application Discontinuation
- 1982-11-24 IT IT24430/82A patent/IT1155070B/it active
- 1982-11-24 FR FR8219689A patent/FR2516918A1/fr not_active Withdrawn
- 1982-11-24 DE DE19823243356 patent/DE3243356A1/de not_active Withdrawn
- 1982-11-24 BR BR8206811A patent/BR8206811A/pt unknown
- 1982-11-24 KR KR8205292A patent/KR870001237B1/ko not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6239152B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1987-08-21 |
| GB2110675A (en) | 1983-06-22 |
| IT1155070B (it) | 1987-01-21 |
| IT8224430A0 (it) | 1982-11-24 |
| GB2110675B (en) | 1985-07-24 |
| IT8224430A1 (it) | 1984-05-24 |
| KR840002348A (ko) | 1984-06-25 |
| KR870001237B1 (ko) | 1987-06-26 |
| DE3243356A1 (de) | 1983-06-01 |
| JPS5890544A (ja) | 1983-05-30 |
| IN159630B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1987-05-30 |
| FR2516918A1 (fr) | 1983-05-27 |
| BR8206811A (pt) | 1983-10-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A85 | Still pending on 85-01-01 | ||
| BV | The patent application has lapsed |