JPS6148827B2 - - Google Patents
Info
- Publication number
- JPS6148827B2 JPS6148827B2 JP56013813A JP1381381A JPS6148827B2 JP S6148827 B2 JPS6148827 B2 JP S6148827B2 JP 56013813 A JP56013813 A JP 56013813A JP 1381381 A JP1381381 A JP 1381381A JP S6148827 B2 JPS6148827 B2 JP S6148827B2
- Authority
- JP
- Japan
- Prior art keywords
- ammonia
- pressure
- urea
- carbon dioxide
- ejector
- 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.)
- Expired
Links
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 136
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 102
- 239000012530 fluid Substances 0.000 claims description 77
- 229910021529 ammonia Inorganic materials 0.000 claims description 59
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 51
- 239000001569 carbon dioxide Substances 0.000 claims description 51
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 47
- 239000004202 carbamide Substances 0.000 claims description 47
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims description 46
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 claims description 44
- 239000007864 aqueous solution Substances 0.000 claims description 33
- 239000007788 liquid Substances 0.000 claims description 25
- 239000008246 gaseous mixture Substances 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 239000000243 solution Substances 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 238000009833 condensation Methods 0.000 claims description 5
- 230000005494 condensation Effects 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000007795 chemical reaction product Substances 0.000 claims description 3
- KJAMZCVTJDTESW-UHFFFAOYSA-N tiracizine Chemical compound C1CC2=CC=CC=C2N(C(=O)CN(C)C)C2=CC(NC(=O)OCC)=CC=C21 KJAMZCVTJDTESW-UHFFFAOYSA-N 0.000 claims description 2
- 238000003786 synthesis reaction Methods 0.000 description 27
- 238000010438 heat treatment Methods 0.000 description 19
- 230000015572 biosynthetic process Effects 0.000 description 17
- 239000007789 gas Substances 0.000 description 11
- 238000005260 corrosion Methods 0.000 description 9
- 230000007797 corrosion Effects 0.000 description 9
- 230000007423 decrease Effects 0.000 description 8
- 238000007796 conventional method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000011261 inert gas Substances 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 150000003672 ureas Chemical class 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 230000007704 transition Effects 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)
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56013813A JPS57128669A (en) | 1981-02-03 | 1981-02-03 | Improvement of urea preparation process |
| IN93/CAL/82A IN155233B (sv) | 1981-02-03 | 1982-01-22 | |
| GB8201890A GB2092140B (en) | 1981-02-03 | 1982-01-22 | A process for manufacturing urea |
| DE3202762A DE3202762C2 (de) | 1981-02-03 | 1982-01-28 | Verfahren zur Herstellung von Harnstoff |
| FR8201576A FR2499073A1 (fr) | 1981-02-03 | 1982-02-01 | Procede de preparation de l'uree |
| KR8200423A KR870001236B1 (ko) | 1981-02-03 | 1982-02-02 | 우레아 제조방법 |
| BR8200548A BR8200548A (pt) | 1981-02-03 | 1982-02-02 | Processo para fabricacao de ureia |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56013813A JPS57128669A (en) | 1981-02-03 | 1981-02-03 | Improvement of urea preparation process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57128669A JPS57128669A (en) | 1982-08-10 |
| JPS6148827B2 true JPS6148827B2 (sv) | 1986-10-25 |
Family
ID=11843707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56013813A Granted JPS57128669A (en) | 1981-02-03 | 1981-02-03 | Improvement of urea preparation process |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS57128669A (sv) |
| KR (1) | KR870001236B1 (sv) |
| BR (1) | BR8200548A (sv) |
| DE (1) | DE3202762C2 (sv) |
| FR (1) | FR2499073A1 (sv) |
| GB (1) | GB2092140B (sv) |
| IN (1) | IN155233B (sv) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0735170U (ja) * | 1993-12-13 | 1995-06-27 | 池田物産株式会社 | 車両用フロアカーペットの端末固定構造 |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106810468B (zh) * | 2016-12-30 | 2018-04-10 | 安徽昊源化工集团有限公司 | 用于尿素合成的增强的装置 |
| JP7012435B2 (ja) * | 2017-01-10 | 2022-01-28 | 三菱重工業株式会社 | 立形ポンプ及び尿素合成プラント |
| JP6920819B2 (ja) * | 2017-01-10 | 2021-08-18 | 三菱重工業株式会社 | 立形ポンプ、そのケーシングカバー及び尿素合成プラント並びに立形ポンプのケーシングカバー製造方法 |
| EP3486493B1 (en) * | 2017-01-10 | 2020-05-13 | Mitsubishi Heavy Industries, Ltd. | Vertical pump and urea synthesizing plant |
| JP6968539B2 (ja) * | 2017-01-10 | 2021-11-17 | 三菱重工業株式会社 | 立形ポンプ及び尿素合成プラント |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3954861A (en) * | 1968-02-05 | 1976-05-04 | Snamprogetti S.P.A | Process for producing urea |
| IL36465A (en) * | 1970-04-02 | 1974-07-31 | Zardi U | Process for the production of urea |
| NL7307036A (sv) * | 1973-05-21 | 1974-11-25 | ||
| JPS5517346A (en) * | 1978-07-24 | 1980-02-06 | Toyo Eng Corp | Synthetic method of urea |
| JPS5573651A (en) * | 1978-11-30 | 1980-06-03 | Toyo Eng Corp | Preparation of urea |
-
1981
- 1981-02-03 JP JP56013813A patent/JPS57128669A/ja active Granted
-
1982
- 1982-01-22 GB GB8201890A patent/GB2092140B/en not_active Expired
- 1982-01-22 IN IN93/CAL/82A patent/IN155233B/en unknown
- 1982-01-28 DE DE3202762A patent/DE3202762C2/de not_active Expired
- 1982-02-01 FR FR8201576A patent/FR2499073A1/fr active Granted
- 1982-02-02 KR KR8200423A patent/KR870001236B1/ko active
- 1982-02-02 BR BR8200548A patent/BR8200548A/pt unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0735170U (ja) * | 1993-12-13 | 1995-06-27 | 池田物産株式会社 | 車両用フロアカーペットの端末固定構造 |
Also Published As
| Publication number | Publication date |
|---|---|
| BR8200548A (pt) | 1982-12-07 |
| JPS57128669A (en) | 1982-08-10 |
| DE3202762C2 (de) | 1984-03-22 |
| GB2092140A (en) | 1982-08-11 |
| KR870001236B1 (ko) | 1987-06-26 |
| KR830009009A (ko) | 1983-12-17 |
| FR2499073B1 (sv) | 1984-02-24 |
| IN155233B (sv) | 1985-01-12 |
| GB2092140B (en) | 1985-01-03 |
| DE3202762A1 (de) | 1982-08-05 |
| FR2499073A1 (fr) | 1982-08-06 |
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