CH207998A - Process for treating mixtures of urea, water, carbonic acid and ammonia produced during the manufacture of urea. - Google Patents
Process for treating mixtures of urea, water, carbonic acid and ammonia produced during the manufacture of urea.Info
- Publication number
- CH207998A CH207998A CH207998DA CH207998A CH 207998 A CH207998 A CH 207998A CH 207998D A CH207998D A CH 207998DA CH 207998 A CH207998 A CH 207998A
- Authority
- CH
- Switzerland
- Prior art keywords
- urea
- manufacture
- water
- carbonic acid
- produced during
- Prior art date
Links
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title 2
- 239000004202 carbamide Substances 0.000 title 2
- 229910021529 ammonia Inorganic materials 0.000 title 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 title 1
- 238000004519 manufacturing process Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 239000000203 mixture Substances 0.000 title 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title 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 |
|---|---|---|---|
| DE207998X | 1938-01-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH207998A true CH207998A (en) | 1939-12-31 |
Family
ID=5793993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH207998D CH207998A (en) | 1938-01-06 | 1938-11-25 | Process for treating mixtures of urea, water, carbonic acid and ammonia produced during the manufacture of urea. |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE431288A (en) |
| CH (1) | CH207998A (en) |
| FR (1) | FR846559A (en) |
| GB (1) | GB509987A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1051843B (en) * | 1953-04-22 | 1959-03-05 | Chemical Construction Corp | Process for the recovery of ammonia from a urea synthesis melt |
| DE1142356B (en) * | 1950-07-26 | 1963-01-17 | Toyo Koatsu Ind Inc | Process for the recovery of ammonia in pure form during the synthesis of urea from excess ammonia and carbon dioxide |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| YU34282B (en) * | 1967-12-14 | 1979-04-30 | Snam Progetti | Process for the decomposition and recyclation of unreacted ammonium carbamate into the reactor for the synthesis of carbamide |
-
1938
- 1938-11-24 FR FR846559D patent/FR846559A/en not_active Expired
- 1938-11-25 CH CH207998D patent/CH207998A/en unknown
- 1938-11-25 BE BE431288D patent/BE431288A/xx unknown
- 1938-12-02 GB GB35167/38A patent/GB509987A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1142356B (en) * | 1950-07-26 | 1963-01-17 | Toyo Koatsu Ind Inc | Process for the recovery of ammonia in pure form during the synthesis of urea from excess ammonia and carbon dioxide |
| DE1051843B (en) * | 1953-04-22 | 1959-03-05 | Chemical Construction Corp | Process for the recovery of ammonia from a urea synthesis melt |
Also Published As
| Publication number | Publication date |
|---|---|
| GB509987A (en) | 1939-07-25 |
| FR846559A (en) | 1939-09-20 |
| BE431288A (en) | 1938-12-31 |
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