JPS5883666A - 尿素の生産方法 - Google Patents
尿素の生産方法Info
- Publication number
- JPS5883666A JPS5883666A JP57180069A JP18006982A JPS5883666A JP S5883666 A JPS5883666 A JP S5883666A JP 57180069 A JP57180069 A JP 57180069A JP 18006982 A JP18006982 A JP 18006982A JP S5883666 A JPS5883666 A JP S5883666A
- Authority
- JP
- Japan
- Prior art keywords
- reaction
- reaction zone
- treatment step
- urea
- pressure
- 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.)
- Pending
Links
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims description 27
- 239000004202 carbamide Substances 0.000 title claims description 27
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 64
- 238000000034 method Methods 0.000 claims description 44
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 26
- 229910021529 ammonia Inorganic materials 0.000 claims description 13
- 150000001875 compounds Chemical class 0.000 claims description 13
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 claims description 10
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 10
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 238000003786 synthesis reaction Methods 0.000 claims description 6
- 150000004657 carbamic acid derivatives Chemical class 0.000 claims description 5
- 239000001569 carbon dioxide Substances 0.000 claims description 4
- 239000000376 reactant Substances 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000000926 separation method Methods 0.000 description 9
- 239000003795 chemical substances by application Substances 0.000 description 8
- 239000011552 falling film Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 210000002700 urine Anatomy 0.000 description 2
- 241000272814 Anser sp. Species 0.000 description 1
- 101000969594 Homo sapiens Modulator of apoptosis 1 Proteins 0.000 description 1
- 102100021440 Modulator of apoptosis 1 Human genes 0.000 description 1
- 102000042822 P family Human genes 0.000 description 1
- 108091082789 P family Proteins 0.000 description 1
- LEHOTFFKMJEONL-UHFFFAOYSA-N Uric Acid Chemical compound N1C(=O)NC(=O)C2=C1NC(=O)N2 LEHOTFFKMJEONL-UHFFFAOYSA-N 0.000 description 1
- TVWHNULVHGKJHS-UHFFFAOYSA-N Uric acid Natural products N1C(=O)NC(=O)C2NC(=O)NC21 TVWHNULVHGKJHS-UHFFFAOYSA-N 0.000 description 1
- 229910000905 alloy phase Inorganic materials 0.000 description 1
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006257 total synthesis reaction Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 229940116269 uric acid Drugs 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)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT8124526A IT1211125B (it) | 1981-10-16 | 1981-10-16 | Composti azotati. processo per la preparazione di |
| IT24526A/81 | 1981-10-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5883666A true JPS5883666A (ja) | 1983-05-19 |
Family
ID=11213863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57180069A Pending JPS5883666A (ja) | 1981-10-16 | 1982-10-15 | 尿素の生産方法 |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US4670588A (https=) |
| JP (1) | JPS5883666A (https=) |
| AR (1) | AR230620A1 (https=) |
| CA (1) | CA1327606C (https=) |
| DE (1) | DE3228594A1 (https=) |
| ES (1) | ES8404676A1 (https=) |
| FR (1) | FR2514758B1 (https=) |
| GB (1) | GB2107311B (https=) |
| IN (1) | IN157310B (https=) |
| IT (1) | IT1211125B (https=) |
| NL (1) | NL8203258A (https=) |
| SU (1) | SU1428191A3 (https=) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8400840A (nl) * | 1984-03-16 | 1985-10-16 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
| JPH082859B2 (ja) * | 1987-02-24 | 1996-01-17 | 東洋エンジニアリング株式会社 | 尿素製造方法 |
| IN169678B (https=) * | 1987-08-13 | 1991-11-30 | Austral Pacific Fertilizers | |
| ATE134994T1 (de) * | 1990-10-05 | 1996-03-15 | Urea Casale Sa | Verfahren zur herstellung von harnstoff mit unterschiedlichen leistungen sowie die implementierung in existierenden anlagen |
| US5276183A (en) * | 1991-01-29 | 1994-01-04 | Urea Casale S.A. | Process and plant for the production of urea |
| ATE167666T1 (de) * | 1991-11-14 | 1998-07-15 | Urea Casale Sa | Verfahren zur herstellung von harnstoff mit reaktionsräumen unterschiedlicher ausbeuten |
| US6274767B1 (en) * | 1992-11-19 | 2001-08-14 | Urea Casale, S.A. | Process for the revamping of urea synthesis plants consisting of a stripper with ammonia |
| TR199501627A2 (tr) * | 1994-12-23 | 1996-07-21 | Urea Casale Sa | Tepkime alanlari farkli verimlere sahip olmak üzere, üre üretimi icin yöntem ve donanim. |
| ZA96686B (en) * | 1995-02-01 | 1996-08-16 | Urea Casale Sa | Process and plant for the production of urea with high conversion yield and low energy consumption |
| IT1274362B (it) * | 1995-02-16 | 1997-07-17 | Snam Progetti | Procedimento ad alta resa per la sintesi dell'urea |
| US5767313A (en) * | 1995-05-23 | 1998-06-16 | Dsm N.V. | Method for the preparation of urea |
| US6231632B1 (en) | 1999-05-25 | 2001-05-15 | Engelhard Corporation | Urea processing agent |
| EP2644264A1 (de) | 2012-03-28 | 2013-10-02 | Aurotec GmbH | Druckreguliertes Mehrreaktorsystem |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH498811A (de) * | 1967-05-22 | 1970-11-15 | Chemical Construction Corp | Verfahren zur Herstellung von Harnstoff aus Ammoniak und Kohlendioxyd |
| ES379855A1 (es) * | 1969-06-11 | 1973-02-16 | Titsui Toatsu Chemicals Inc | Procedimiento para sintetizar urea de dioxido de carbono y amoniaco. |
| US4137262A (en) * | 1969-10-16 | 1979-01-30 | Snam Progetti S.P.A. | Process for the production of urea |
| US3984469A (en) * | 1969-10-16 | 1976-10-05 | Snam Progetti S.P.A. | Process for the production of urea |
| BE787832A (fr) * | 1971-09-02 | 1973-02-22 | Stamicarbon | Procede pour la preparation d'uree |
| IT1068268B (it) * | 1976-09-09 | 1985-03-21 | Snam Progetti | Procedimento per la produzione di urea e purificazione delle acque |
| SE446978B (sv) * | 1977-05-05 | 1986-10-20 | Montedison Spa | Isobariskt dubbelatercirkulationsforfarande for syntetisering av urea under bildning av ammoniumkarbamat som mellanprodukt |
| IT1174366B (it) * | 1978-07-24 | 1987-07-01 | Ortu Francesco | Decompositore di carbammato per produzione industriale di urea |
| IT1141030B (it) * | 1980-08-29 | 1986-10-01 | Snam Progetti | Procedimento per la produzione di urea |
-
1981
- 1981-10-16 IT IT8124526A patent/IT1211125B/it active
-
1982
- 1982-07-30 DE DE19823228594 patent/DE3228594A1/de not_active Withdrawn
- 1982-08-09 FR FR8213857A patent/FR2514758B1/fr not_active Expired
- 1982-08-19 NL NL8203258A patent/NL8203258A/nl not_active Application Discontinuation
- 1982-08-25 IN IN985/CAL/82A patent/IN157310B/en unknown
- 1982-09-20 SU SU823494195A patent/SU1428191A3/ru active
- 1982-09-21 AR AR290732A patent/AR230620A1/es active
- 1982-09-22 GB GB08227073A patent/GB2107311B/en not_active Expired
- 1982-10-15 CA CA000413515A patent/CA1327606C/en not_active Expired - Fee Related
- 1982-10-15 ES ES516549A patent/ES8404676A1/es not_active Expired
- 1982-10-15 JP JP57180069A patent/JPS5883666A/ja active Pending
-
1984
- 1984-08-13 US US06/640,243 patent/US4670588A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| FR2514758A1 (fr) | 1983-04-22 |
| SU1428191A3 (ru) | 1988-09-30 |
| GB2107311A (en) | 1983-04-27 |
| IN157310B (https=) | 1986-03-01 |
| IT8124526A0 (it) | 1981-10-16 |
| AR230620A1 (es) | 1984-05-31 |
| IT1211125B (it) | 1989-09-29 |
| GB2107311B (en) | 1986-01-29 |
| CA1327606C (en) | 1994-03-08 |
| DE3228594A1 (de) | 1983-04-28 |
| US4670588A (en) | 1987-06-02 |
| ES516549A0 (es) | 1984-05-01 |
| FR2514758B1 (fr) | 1985-07-05 |
| ES8404676A1 (es) | 1984-05-01 |
| NL8203258A (nl) | 1983-05-16 |
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