ES426986A1 - Un procedimiento de sintesis de urea. - Google Patents
Un procedimiento de sintesis de urea.Info
- Publication number
- ES426986A1 ES426986A1 ES426986A ES426986A ES426986A1 ES 426986 A1 ES426986 A1 ES 426986A1 ES 426986 A ES426986 A ES 426986A ES 426986 A ES426986 A ES 426986A ES 426986 A1 ES426986 A1 ES 426986A1
- Authority
- ES
- Spain
- Prior art keywords
- urea
- ammonium carbamate
- solution
- carbamate
- aqueous
- 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
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 (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US369756A US3886210A (en) | 1970-06-29 | 1973-06-13 | Urea synthesis with improved heat recovery and ammonium carbamate recirculation |
Publications (1)
Publication Number | Publication Date |
---|---|
ES426986A1 true ES426986A1 (es) | 1976-09-01 |
Family
ID=23456789
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES426986A Expired ES426986A1 (es) | 1973-06-13 | 1974-06-05 | Un procedimiento de sintesis de urea. |
Country Status (13)
Country | Link |
---|---|
JP (1) | JPS585189B2 (es) |
AR (1) | AR200786A1 (es) |
BE (1) | BE816142A (es) |
BR (1) | BR7404845D0 (es) |
CA (1) | CA1026374A (es) |
DE (1) | DE2425581A1 (es) |
ES (1) | ES426986A1 (es) |
FR (2) | FR2244755B1 (es) |
GB (1) | GB1423977A (es) |
IN (1) | IN140206B (es) |
IT (1) | IT1015048B (es) |
NL (1) | NL182219C (es) |
TR (1) | TR18243A (es) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7062131B2 (ja) | 2019-03-18 | 2022-05-02 | 三菱電機株式会社 | プレート式熱交換器及びそれを備えたヒートポンプ装置 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5189A (en) * | 1974-06-20 | 1976-01-05 | Sakuhei Fujita | Magaripaipuniokeru anaakehoho |
-
1974
- 1974-05-08 IN IN1025/CAL/74A patent/IN140206B/en unknown
- 1974-05-14 GB GB2138474A patent/GB1423977A/en not_active Expired
- 1974-05-27 DE DE19742425581 patent/DE2425581A1/de active Pending
- 1974-06-04 TR TR18243A patent/TR18243A/xx unknown
- 1974-06-05 AR AR254068A patent/AR200786A1/es active
- 1974-06-05 ES ES426986A patent/ES426986A1/es not_active Expired
- 1974-06-10 CA CA202,018A patent/CA1026374A/en not_active Expired
- 1974-06-10 BE BE145264A patent/BE816142A/xx unknown
- 1974-06-12 NL NLAANVRAGE7407873,A patent/NL182219C/xx not_active IP Right Cessation
- 1974-06-12 IT IT23954/74A patent/IT1015048B/it active
- 1974-06-12 JP JP49066136A patent/JPS585189B2/ja not_active Expired
- 1974-06-12 BR BR4845/74A patent/BR7404845D0/pt unknown
- 1974-06-12 FR FR7420858A patent/FR2244755B1/fr not_active Expired
-
1975
- 1975-02-19 FR FR7505586A patent/FR2272984B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
AR200786A1 (es) | 1974-12-13 |
GB1423977A (en) | 1976-02-04 |
NL182219C (nl) | 1988-02-01 |
NL182219B (nl) | 1987-09-01 |
IT1015048B (it) | 1977-05-10 |
JPS585189B2 (ja) | 1983-01-29 |
TR18243A (tr) | 1976-11-10 |
IN140206B (es) | 1976-09-25 |
JPS5035115A (es) | 1975-04-03 |
FR2244755B1 (es) | 1977-10-07 |
BR7404845D0 (pt) | 1975-09-30 |
FR2272984A1 (es) | 1975-12-26 |
NL7407873A (es) | 1974-12-17 |
DE2425581A1 (de) | 1975-01-09 |
BE816142A (fr) | 1974-12-10 |
FR2272984B1 (es) | 1979-07-13 |
CA1026374A (en) | 1978-02-14 |
FR2244755A1 (es) | 1975-04-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ATE14574T1 (de) | Verfahren zur rueckgewinnung von harnstoff, ammoniak und kohlendioxid aus prozesswasser bei der ammoniak- und harnstoffsynthese. | |
GB1106024A (en) | Urea synthesis | |
GB1411245A (es) | ||
ES406183A1 (es) | Procedimiento para preparar urea. | |
ES426480A1 (es) | Un procedimiento para preparar urea. | |
GB1261170A (en) | Urea synthesis process | |
ES426986A1 (es) | Un procedimiento de sintesis de urea. | |
ES390189A1 (es) | Procedimiento para la produccion de urea. | |
ES320364A1 (es) | Un procedimiento para preparar urea. | |
GB1428684A (en) | Process for preparing urea | |
GB1147734A (en) | Method for the preparation of urea | |
GB1124547A (en) | Production of urea | |
ES425018A1 (es) | Un procedimiento de sintesis de urea. | |
ES396661A1 (es) | Un procedimiento de sintesis de urea. | |
GB1253724A (en) | Process for producing urea | |
ES461061A1 (es) | Un procedimiento para sintetizar urea. | |
GB959358A (en) | Production of urea prills of low biuret content | |
GB870452A (en) | Combined process for the production of water enriched with deuterium and the synthesis of ammonia | |
ES416959A3 (es) | Un procedimiento de sintesis de urea con reciclo para la formacion de urea. | |
ES275925A1 (es) | Procedimiento para la producción de urea a base de vapores amoniacales | |
ES395094A1 (es) | Procedimiento integrado para la produccion de urea. | |
ES345829A1 (es) | Un procedimiento para la produccion de urea a partir de a- moniaco y dioxido de carbono. | |
ES390122A3 (es) | Un procedimiento de sintesis de urea por reaccion de amoni-aco y dioxido de carbono. | |
GB1108409A (en) | Method of synthesizing urea | |
GB1506437A (en) | Recycling process for the preparation of cyclohexanone oxime |