NO129250B - - Google Patents
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- Publication number
- NO129250B NO129250B NO01723/68A NO172368A NO129250B NO 129250 B NO129250 B NO 129250B NO 01723/68 A NO01723/68 A NO 01723/68A NO 172368 A NO172368 A NO 172368A NO 129250 B NO129250 B NO 129250B
- Authority
- NO
- Norway
- Prior art keywords
- carbamate
- reactor
- ammonia
- urea
- carbon dioxide
- Prior art date
Links
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 30
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 19
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 16
- 239000004202 carbamide Substances 0.000 claims description 16
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 16
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 claims description 15
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims description 15
- 229910021529 ammonia Inorganic materials 0.000 claims description 14
- 239000001569 carbon dioxide Substances 0.000 claims description 13
- 238000004064 recycling Methods 0.000 claims description 7
- 239000000243 solution Substances 0.000 claims description 7
- 230000005484 gravity Effects 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims description 2
- 239000001099 ammonium carbonate Substances 0.000 claims description 2
- 235000012501 ammonium carbonate Nutrition 0.000 claims description 2
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 26
- 230000015572 biosynthetic process Effects 0.000 description 7
- 238000003786 synthesis reaction Methods 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 239000007795 chemical reaction product Substances 0.000 description 3
- 238000003776 cleavage reaction Methods 0.000 description 3
- 230000007017 scission Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 238000005878 carbamate elimination reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT1240968 | 1968-02-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO129250B true NO129250B (ro) | 1974-03-18 |
Family
ID=11139817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO01723/68A NO129250B (ro) | 1968-02-06 | 1968-05-03 |
Country Status (14)
| Country | Link |
|---|---|
| AT (1) | AT284138B (ro) |
| BE (1) | BE714519A (ro) |
| CA (1) | CA923142A (ro) |
| CH (1) | CH486428A (ro) |
| CS (1) | CS159227B2 (ro) |
| DK (1) | DK119604B (ro) |
| ES (1) | ES358903A1 (ro) |
| FR (1) | FR1560985A (ro) |
| GB (1) | GB1188051A (ro) |
| IE (1) | IE31898B1 (ro) |
| LU (1) | LU55998A1 (ro) |
| NL (1) | NL162370C (ro) |
| NO (1) | NO129250B (ro) |
| YU (1) | YU33003B (ro) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3954861A (en) * | 1968-02-05 | 1976-05-04 | Snamprogetti S.P.A | Process for producing urea |
| NL7307036A (ro) * | 1973-05-21 | 1974-11-25 | ||
| NO150512C (no) * | 1977-05-05 | 1984-10-31 | Montedison Spa | Fremgangsmaate ved fremstilling av urea. |
| NL8101174A (nl) * | 1981-03-11 | 1982-10-01 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
| EP2123633A1 (en) * | 2008-05-19 | 2009-11-25 | DSM IP Assets B.V. | Process for the production of urea from ammonia and carbon dioxide |
| EP2286909A1 (en) | 2009-08-17 | 2011-02-23 | Stamicarbon B.V. | An apparatus for the decomposition of non-converted ammonium carbamate in urea solutions in a urea synthesis process |
| EP3233792B1 (en) | 2014-12-18 | 2019-09-04 | Stamicarbon B.V. | Process for urea production |
-
1968
- 1968-04-18 AT AT380168A patent/AT284138B/de not_active IP Right Cessation
- 1968-04-19 YU YU945/68A patent/YU33003B/xx unknown
- 1968-04-19 DK DK178068AA patent/DK119604B/da not_active IP Right Cessation
- 1968-04-25 CS CS308068A patent/CS159227B2/cs unknown
- 1968-04-29 LU LU55998D patent/LU55998A1/xx unknown
- 1968-04-29 FR FR1560985D patent/FR1560985A/fr not_active Expired
- 1968-04-30 BE BE714519D patent/BE714519A/xx not_active IP Right Cessation
- 1968-04-30 CH CH646968A patent/CH486428A/fr not_active IP Right Cessation
- 1968-05-01 GB GB20720/68A patent/GB1188051A/en not_active Expired
- 1968-05-01 NL NL6806170.A patent/NL162370C/xx not_active IP Right Cessation
- 1968-05-03 NO NO01723/68A patent/NO129250B/no unknown
- 1968-05-07 IE IE533/68A patent/IE31898B1/xx unknown
- 1968-09-27 ES ES358903A patent/ES358903A1/es not_active Expired
-
1969
- 1969-01-09 CA CA039707A patent/CA923142A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1768248A1 (de) | 1972-03-30 |
| DE1768248B2 (de) | 1973-02-01 |
| CA923142A (en) | 1973-03-20 |
| IE31898B1 (en) | 1973-02-07 |
| AT284138B (de) | 1970-09-10 |
| CS159227B2 (ro) | 1974-12-27 |
| DK119604B (da) | 1971-02-01 |
| GB1188051A (en) | 1970-04-15 |
| NL6806170A (ro) | 1969-08-08 |
| LU55998A1 (ro) | 1968-07-12 |
| IE31898L (en) | 1969-08-06 |
| YU33003B (en) | 1976-03-31 |
| BE714519A (ro) | 1968-09-30 |
| YU94568A (en) | 1975-08-31 |
| NL162370C (nl) | 1980-05-16 |
| ES358903A1 (es) | 1970-05-16 |
| FR1560985A (ro) | 1969-03-21 |
| NL162370B (nl) | 1979-12-17 |
| CH486428A (fr) | 1970-02-28 |
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