IE780636L - Production of urea - Google Patents
Production of ureaInfo
- Publication number
- IE780636L IE780636L IE780636A IE63678A IE780636L IE 780636 L IE780636 L IE 780636L IE 780636 A IE780636 A IE 780636A IE 63678 A IE63678 A IE 63678A IE 780636 L IE780636 L IE 780636L
- Authority
- IE
- Ireland
- Prior art keywords
- carbon dioxide
- urea
- production
- reactor
- ammonia
- Prior art date
Links
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title abstract 2
- 239000004202 carbamide Substances 0.000 title abstract 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 5
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 3
- 239000006096 absorbing agent Substances 0.000 abstract 2
- 239000001569 carbon dioxide Substances 0.000 abstract 2
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229910000069 nitrogen hydride Inorganic materials 0.000 abstract 1
- 239000007858 starting material Substances 0.000 abstract 1
- 238000003786 synthesis reaction Methods 0.000 abstract 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)
Abstract
In a process for producing urea with ammonia and pure carbon dioxide as starting materials, the improvement comprises feeding liquid ammonia in part to the absorber (1) with all the carbon dioxide and in part to the synthesis reactor (2). The NH3/CO2 molar ratios are 2 to 4 for the condenser and 2.5 to 7 for the reactor. Film-type absorbers are preferred. <IMAGE>
[GB1586629A]
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT21904/77A IT1075371B (en) | 1977-03-31 | 1977-03-31 | PROCESS FOR THE PRODUCTION OF UREA STARTING FROM CO2 AND PURE NH3 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE780636L true IE780636L (en) | 1978-11-30 |
| IE46700B1 IE46700B1 (en) | 1983-08-24 |
Family
ID=11188506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE636/78A IE46700B1 (en) | 1977-03-31 | 1978-03-30 | Production of urea |
Country Status (20)
| Country | Link |
|---|---|
| JP (1) | JPS53149929A (en) |
| AR (1) | AR214002A1 (en) |
| AU (1) | AU519725B2 (en) |
| BE (1) | BE865585A (en) |
| BR (1) | BR7802007A (en) |
| CA (1) | CA1101884A (en) |
| CH (1) | CH632240A5 (en) |
| CS (1) | CS204026B2 (en) |
| DD (1) | DD134223A5 (en) |
| DE (1) | DE2813528C3 (en) |
| DK (1) | DK140378A (en) |
| ES (1) | ES469090A1 (en) |
| FR (1) | FR2385690A1 (en) |
| GB (1) | GB1586629A (en) |
| IE (1) | IE46700B1 (en) |
| IT (1) | IT1075371B (en) |
| LU (1) | LU79340A1 (en) |
| NL (1) | NL7803338A (en) |
| PL (1) | PL108056B1 (en) |
| SE (1) | SE7803685L (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE790015A (en) * | 1971-10-19 | 1973-04-12 | Mavrovic Ivo | UREA SYNTHESIS WITH IMPROVED CONVERSION AND HEAT RECOVERY |
-
1977
- 1977-03-31 IT IT21904/77A patent/IT1075371B/en active
-
1978
- 1978-03-20 AU AU34291/78A patent/AU519725B2/en not_active Expired
- 1978-03-21 GB GB11243/78A patent/GB1586629A/en not_active Expired
- 1978-03-22 CA CA299,501A patent/CA1101884A/en not_active Expired
- 1978-03-28 ES ES469090A patent/ES469090A1/en not_active Expired
- 1978-03-28 AR AR271575A patent/AR214002A1/en active
- 1978-03-29 DE DE2813528A patent/DE2813528C3/en not_active Expired
- 1978-03-29 NL NL7803338A patent/NL7803338A/en not_active Application Discontinuation
- 1978-03-29 CH CH335878A patent/CH632240A5/en not_active IP Right Cessation
- 1978-03-29 PL PL1978205651A patent/PL108056B1/en unknown
- 1978-03-30 DK DK140378A patent/DK140378A/en unknown
- 1978-03-30 LU LU79340A patent/LU79340A1/en unknown
- 1978-03-30 CS CS782044A patent/CS204026B2/en unknown
- 1978-03-30 IE IE636/78A patent/IE46700B1/en unknown
- 1978-03-30 FR FR7809361A patent/FR2385690A1/en not_active Withdrawn
- 1978-03-31 BE BE186482A patent/BE865585A/en not_active IP Right Cessation
- 1978-03-31 BR BR7802007A patent/BR7802007A/en unknown
- 1978-03-31 SE SE7803685A patent/SE7803685L/en unknown
- 1978-03-31 JP JP3695778A patent/JPS53149929A/en active Pending
- 1978-03-31 DD DD78204529A patent/DD134223A5/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AU3429178A (en) | 1979-09-27 |
| NL7803338A (en) | 1978-10-03 |
| LU79340A1 (en) | 1978-07-13 |
| AU519725B2 (en) | 1981-12-17 |
| DE2813528C3 (en) | 1980-03-20 |
| CS204026B2 (en) | 1981-03-31 |
| PL108056B1 (en) | 1980-03-31 |
| PL205651A1 (en) | 1978-12-04 |
| IE46700B1 (en) | 1983-08-24 |
| BE865585A (en) | 1978-10-02 |
| SE7803685L (en) | 1978-10-01 |
| ES469090A1 (en) | 1978-11-16 |
| JPS53149929A (en) | 1978-12-27 |
| DE2813528A1 (en) | 1978-10-12 |
| BR7802007A (en) | 1979-04-03 |
| GB1586629A (en) | 1981-03-25 |
| CA1101884A (en) | 1981-05-26 |
| FR2385690A1 (en) | 1978-10-27 |
| CH632240A5 (en) | 1982-09-30 |
| DD134223A5 (en) | 1979-02-14 |
| IT1075371B (en) | 1985-04-22 |
| DK140378A (en) | 1978-10-01 |
| DE2813528B2 (en) | 1979-07-26 |
| AR214002A1 (en) | 1979-04-11 |
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