KR850004103A - 요소의 제조방법 - Google Patents
요소의 제조방법 Download PDFInfo
- Publication number
- KR850004103A KR850004103A KR1019840007102A KR840007102A KR850004103A KR 850004103 A KR850004103 A KR 850004103A KR 1019840007102 A KR1019840007102 A KR 1019840007102A KR 840007102 A KR840007102 A KR 840007102A KR 850004103 A KR850004103 A KR 850004103A
- Authority
- KR
- South Korea
- Prior art keywords
- solution
- outside
- urea
- gas mixture
- tube
- Prior art date
Links
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims 10
- 239000004202 carbamide Substances 0.000 title claims 10
- 238000004519 manufacturing process Methods 0.000 title claims 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims 10
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims 8
- 239000007789 gas Substances 0.000 claims 7
- 239000000203 mixture Substances 0.000 claims 6
- 229910021529 ammonia Inorganic materials 0.000 claims 5
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 claims 4
- 229910002092 carbon dioxide Inorganic materials 0.000 claims 4
- 239000001569 carbon dioxide Substances 0.000 claims 4
- 230000015572 biosynthetic process Effects 0.000 claims 3
- 238000000034 method Methods 0.000 claims 3
- 238000003786 synthesis reaction Methods 0.000 claims 3
- 238000009833 condensation Methods 0.000 claims 2
- 230000005494 condensation Effects 0.000 claims 2
- 238000000354 decomposition reaction Methods 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims 1
- 150000004657 carbamic acid derivatives Chemical class 0.000 claims 1
- 238000005336 cracking Methods 0.000 claims 1
- 239000007792 gaseous phase Substances 0.000 claims 1
- 239000012071 phase Substances 0.000 claims 1
- 229910052709 silver Inorganic materials 0.000 claims 1
- 239000004332 silver Substances 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 238000010586 diagram Methods 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)
- Saccharide Compounds (AREA)
- Catalysts (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Compounds Of Unknown Constitution (AREA)
Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
도면은 본 발명의 전체 구조도.
Claims (5)
- 합성대에서, 125-350bar의 압력과 거기에 해당하는 온도로 카르바민산염과 유리암모니아를 포함 요소합성용액을 이산화탄소와 과량의 암모니아로 부터 생성하고, 첫째 분해단계에서, 합성압력 또는 그이하의 압력은로 일부의 카르바민산 염을 열을 공급하여 분해하고 여기서 얻은 기상을 첫째 응축대에서 응축시키고, 두번째 분해단계에서, 4-40bar의 압력으로 잔존하는 더 많은 양의 카르바민산염을 열을 공급하여 분해하고 생긴 기상을 분리해내고, 다음 단계에서, 나머지 카르바민산염을 암모니아와 이산화탄소를 포함한 기체 혼합물의 형태로 제거하여, 이 기체 혼합물을 물에서 암모니아와 이산화탄소의 용액형태로 만들고, 그리고 잔류요소를 포함한 용액을 농축요소 용액이 생성되도록 하는 요소 제조방법에 있어서, 농축해야 할 요소용액을 열교환기의 관으로 내보내고 두번째 분해단계로부터 생긴 기체혼합물을 농축해야할 요소용액이 공급되는 장소의 반대편에 있는 열교환기의 관외측으로 통하게 하며 물속의 암모니아와 이산화탄소의 용액을 기체 혼합물을 위한 입구와 농축할 요소용액을 위한 입구사이에 위칭한 장소에 있는 상기 관외측으로 공급하고 응축물을 요소용액이 관으로 들어가는 끝에 있는 관외측으로부터 반출하는 것을 특징으로 하는 요소제조방법.
- 제1항에 있어서, 관외측에서의 온도가 실제 Q-t-도형에서 묽은 카르바민산염 용액이 없는 곳에서 기체 혼합물의 응축선과 묽은 카르바민산염 용액이 존재하는 곳에서 기체 혼합물의 응축선이 교차하는 온도에 해당하는 지점에서 두번째 분해단계에서 생긴 기체혼합물을 열교환기의 관외측으로 보내는 것을 특징으로 하는 방법. 이때 Q는 관외측으로 부터 다른 관외측으로까지 전달된 열량을 나타내고 t는 관외측에서의 온도를 나타낸다.
- 제1항 또는 제2항에 있어서, 응축해야 할 기체 혼합물이 열교환기의 관외측으로 들어갈때 100-160℃의 노점을 갖는 것을 특징으로 하는 방법.
- 제1항에 있어서, 도면과 실시예에 설명된 것을 특징으로 하는 방법.
- 제1항에 4항중 어느 한항에 있어서, 설명된 방법에 따라 제조된 농축요소용액 및 고체요소.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL8303888A NL8303888A (nl) | 1983-11-13 | 1983-11-13 | Werkwijze voor de bereiding van ureum. |
| NL8303888 | 1983-11-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR850004103A true KR850004103A (ko) | 1985-07-01 |
| KR870001143B1 KR870001143B1 (ko) | 1987-06-11 |
Family
ID=19842703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019840007102A KR870001143B1 (ko) | 1983-11-13 | 1984-11-13 | 요소의 제조방법 |
Country Status (32)
| Country | Link |
|---|---|
| US (1) | US4801747A (ko) |
| EP (1) | EP0145054B1 (ko) |
| JP (1) | JPS60166656A (ko) |
| KR (1) | KR870001143B1 (ko) |
| AT (1) | ATE33132T1 (ko) |
| AU (1) | AU569555B2 (ko) |
| BG (1) | BG45699A3 (ko) |
| BR (1) | BR8405765A (ko) |
| CS (1) | CS249529B2 (ko) |
| DD (1) | DD233124A5 (ko) |
| DE (1) | DE3470038D1 (ko) |
| EG (1) | EG16095A (ko) |
| ES (1) | ES537569A0 (ko) |
| FI (1) | FI844426L (ko) |
| GR (1) | GR80927B (ko) |
| HU (1) | HU199405B (ko) |
| IL (1) | IL73489A (ko) |
| IN (1) | IN162987B (ko) |
| MA (1) | MA20262A1 (ko) |
| NL (1) | NL8303888A (ko) |
| NO (1) | NO161315C (ko) |
| NZ (1) | NZ210148A (ko) |
| OA (1) | OA07860A (ko) |
| PH (1) | PH20867A (ko) |
| PL (1) | PL141369B1 (ko) |
| PT (1) | PT79483A (ko) |
| RO (1) | RO91348B (ko) |
| SU (1) | SU1450735A3 (ko) |
| TR (1) | TR22384A (ko) |
| YU (1) | YU188884A (ko) |
| ZA (1) | ZA848715B (ko) |
| ZW (1) | ZW17684A1 (ko) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8502227A (nl) * | 1985-08-12 | 1987-03-02 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
| NL8602769A (nl) * | 1986-11-03 | 1988-06-01 | Stamicarbon | Werkwijze voor het concentreren van een ureumoplossing en inrichting voor het uitvoeren van de werkwijze. |
| NL8602770A (nl) * | 1986-11-03 | 1988-06-01 | Stamicarbon | Werkwijze voor de bereiding van ureum. |
| NL8800259A (nl) * | 1988-02-04 | 1989-09-01 | Stamicarbon | Werkwijze voor het concentreren van een ureumoplossing. |
| CH679485A5 (ko) * | 1989-12-29 | 1992-02-28 | Ammonia Casale Sa | |
| EP1289942B1 (en) * | 2000-06-15 | 2008-05-07 | Urea Casale S.A. | Process and plant for the production of urea |
| JP4358428B2 (ja) * | 2000-11-01 | 2009-11-04 | 東洋エンジニアリング株式会社 | 尿素製造方法 |
| EP2153880A1 (en) * | 2008-07-31 | 2010-02-17 | Urea Casale S.A. | Process and plant for the production of a urea solution for use in SCR process for reduction of Nox |
| US10919846B2 (en) * | 2018-12-21 | 2021-02-16 | Stamicarbon B.V. | Urea production process and plant with heat integration in low pressure recovery section |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3137725A (en) * | 1960-02-11 | 1964-06-16 | Chemical Construction Corp | Heat recovery in urea synthesis process |
| US3147304A (en) * | 1960-06-21 | 1964-09-01 | Chemical Construction Corp | Method for heat recovery in urea synthesis process |
| NL127236C (ko) * | 1964-05-29 | |||
| NL168506C (nl) * | 1970-12-31 | 1982-04-16 | Stamicarbon | Werkwijze voor de bereiding van ureum. |
| AR206244A1 (es) * | 1975-05-06 | 1976-07-07 | Mitsui Toatsu Chemicals | Procedimiento para tratar vapor de agua generado al concentrar una solucion acuosa de urea |
| JPS5268129A (en) * | 1975-12-05 | 1977-06-06 | Mitsui Toatsu Chem Inc | Recovery of unreacted material and heat on urea synthesis |
| NL7612162A (nl) * | 1976-11-03 | 1978-05-08 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van een ureum- oplossing uit nh3 en co2. |
| JPS5746954A (en) * | 1980-09-05 | 1982-03-17 | Mitsui Toatsu Chem Inc | Synthesis of urea |
| JPS5750954A (en) * | 1980-09-12 | 1982-03-25 | Mitsui Toatsu Chem Inc | Synthesis of urea |
| AU8825782A (en) * | 1981-09-01 | 1983-03-28 | Unie Van Kunstmestfabrieken B.V. | Process for the preparation of urea |
| AU8825882A (en) * | 1981-09-01 | 1983-03-28 | Unie Van Kunstmestfabrieken B.V. | Process for the preparation of urea |
| NL8201652A (nl) * | 1982-04-21 | 1983-11-16 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
| NL8400839A (nl) * | 1984-03-16 | 1985-10-16 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
-
1983
- 1983-11-13 NL NL8303888A patent/NL8303888A/nl not_active Application Discontinuation
-
1984
- 1984-11-06 EP EP84201600A patent/EP0145054B1/en not_active Expired
- 1984-11-06 DE DE8484201600T patent/DE3470038D1/de not_active Expired
- 1984-11-06 AT AT84201600T patent/ATE33132T1/de not_active IP Right Cessation
- 1984-11-07 ZW ZW176/84A patent/ZW17684A1/xx unknown
- 1984-11-07 ZA ZA848715A patent/ZA848715B/xx unknown
- 1984-11-08 MA MA20486A patent/MA20262A1/fr unknown
- 1984-11-08 NZ NZ210148A patent/NZ210148A/en unknown
- 1984-11-09 YU YU01888/84A patent/YU188884A/xx unknown
- 1984-11-09 PT PT79483A patent/PT79483A/pt unknown
- 1984-11-12 BG BG67493A patent/BG45699A3/xx unknown
- 1984-11-12 SU SU843814605A patent/SU1450735A3/ru active
- 1984-11-12 FI FI844426A patent/FI844426L/fi not_active Application Discontinuation
- 1984-11-12 AU AU35314/84A patent/AU569555B2/en not_active Ceased
- 1984-11-12 PL PL1984250403A patent/PL141369B1/pl unknown
- 1984-11-12 NO NO844516A patent/NO161315C/no unknown
- 1984-11-12 HU HU844202A patent/HU199405B/hu not_active IP Right Cessation
- 1984-11-12 ES ES537569A patent/ES537569A0/es active Granted
- 1984-11-12 RO RO116259A patent/RO91348B/ro unknown
- 1984-11-12 TR TR8674/84A patent/TR22384A/xx unknown
- 1984-11-12 IL IL73489A patent/IL73489A/xx unknown
- 1984-11-12 BR BR8405765A patent/BR8405765A/pt unknown
- 1984-11-12 EG EG699/84A patent/EG16095A/xx active
- 1984-11-13 JP JP59237721A patent/JPS60166656A/ja active Pending
- 1984-11-13 OA OA58437A patent/OA07860A/xx unknown
- 1984-11-13 DD DD84269433A patent/DD233124A5/de unknown
- 1984-11-13 PH PH31441A patent/PH20867A/en unknown
- 1984-11-13 GR GR80927A patent/GR80927B/el unknown
- 1984-11-13 CS CS848658A patent/CS249529B2/cs unknown
- 1984-11-13 KR KR1019840007102A patent/KR870001143B1/ko not_active IP Right Cessation
- 1984-11-14 IN IN867/MAS/84A patent/IN162987B/en unknown
-
1986
- 1986-10-06 US US06/898,610 patent/US4801747A/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| G160 | Decision to publish patent application | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| LAPS | Lapse due to unpaid annual fee |