BE779258A - PROCESS FOR THE TREATMENT AT ELEVATED TEMPERATURES OF SOLUTIONS CONTAINING AMMONIUM CARBAMATE - Google Patents
PROCESS FOR THE TREATMENT AT ELEVATED TEMPERATURES OF SOLUTIONS CONTAINING AMMONIUM CARBAMATEInfo
- Publication number
- BE779258A BE779258A BE779258A BE779258A BE779258A BE 779258 A BE779258 A BE 779258A BE 779258 A BE779258 A BE 779258A BE 779258 A BE779258 A BE 779258A BE 779258 A BE779258 A BE 779258A
- Authority
- BE
- Belgium
- Prior art keywords
- treatment
- elevated temperatures
- solutions containing
- containing ammonium
- ammonium carbamate
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/02—Apparatus characterised by being constructed of material selected for its chemically-resistant properties
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/02—Apparatus characterised by their chemically-resistant properties
- B01J2219/025—Apparatus characterised by their chemically-resistant properties characterised by the construction materials of the reactor vessel proper
- B01J2219/0277—Metal based
- B01J2219/0286—Steel
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Catalysts (AREA)
- Electroplating And Plating Baths Therefor (AREA)
- Removal Of Specific Substances (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NLAANVRAGE7101951,A NL169588C (en) | 1971-02-13 | 1971-02-13 | PROCESS FOR THE SOLUTIONS CONTAINING INCREASED AMMONIUM CARBAMATE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE779258A true BE779258A (en) | 1972-08-11 |
Family
ID=19812478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE779258A BE779258A (en) | 1971-02-13 | 1972-02-11 | PROCESS FOR THE TREATMENT AT ELEVATED TEMPERATURES OF SOLUTIONS CONTAINING AMMONIUM CARBAMATE |
Country Status (20)
| Country | Link |
|---|---|
| AU (1) | AU463665B2 (en) |
| BE (1) | BE779258A (en) |
| BR (1) | BR7200837D0 (en) |
| CA (1) | CA966638A (en) |
| CS (1) | CS163267B2 (en) |
| DD (1) | DD95368A5 (en) |
| DE (1) | DE2206615B2 (en) |
| ES (1) | ES399672A1 (en) |
| FR (1) | FR2125445B1 (en) |
| GB (1) | GB1333544A (en) |
| HU (1) | HU173919B (en) |
| IE (1) | IE36076B1 (en) |
| IT (1) | IT948491B (en) |
| NL (1) | NL169588C (en) |
| NO (1) | NO137010C (en) |
| RO (1) | RO63301A (en) |
| SE (1) | SE387336B (en) |
| TR (1) | TR18774A (en) |
| ZA (1) | ZA72781B (en) |
| ZM (1) | ZM2772A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8304381A (en) * | 1983-12-21 | 1985-07-16 | Stamicarbon | METHOD AND APPARATUS FOR PREPARING MELAMINE |
| JPS63121641A (en) * | 1986-11-10 | 1988-05-25 | Nippon Yakin Kogyo Co Ltd | External coating of sheathed heater made of austenitic stainless steel |
| EP1921043B1 (en) | 2006-11-01 | 2012-01-18 | Mitsubishi Gas Chemical Company, Inc. | Method of recovering ammonia and process for producing a nitrile compound making use of the ammonia recovery method |
| US11746084B2 (en) * | 2019-07-05 | 2023-09-05 | Stamicarbon B.V. | Ferritic steel parts in urea plants |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1986973A (en) * | 1930-11-17 | 1935-01-08 | Du Pont | Prevention of corrosion in urea synthesis |
| US2129689A (en) * | 1936-12-04 | 1938-09-13 | Du Pont | Urea manufacture |
| US2183715A (en) * | 1938-05-21 | 1939-12-19 | Electro Metallurg Co | Corrosion resistant steel alloy |
| US2624671A (en) * | 1951-01-19 | 1953-01-06 | Union Carbide & Carbon Corp | Ferritic chromium steels |
| DE1608201A1 (en) * | 1967-03-15 | 1970-12-03 | Du Pont | Corrosion-resistant iron-chromium alloys |
-
1971
- 1971-02-13 NL NLAANVRAGE7101951,A patent/NL169588C/en not_active IP Right Cessation
- 1971-02-13 TR TR18774A patent/TR18774A/en unknown
-
1972
- 1972-02-07 ZA ZA720781A patent/ZA72781B/en unknown
- 1972-02-08 CA CA134,144A patent/CA966638A/en not_active Expired
- 1972-02-09 IT IT48234/72A patent/IT948491B/en active
- 1972-02-09 GB GB615572A patent/GB1333544A/en not_active Expired
- 1972-02-09 AU AU38813/72A patent/AU463665B2/en not_active Expired
- 1972-02-10 SE SE7201605A patent/SE387336B/en unknown
- 1972-02-10 HU HU72SA2312A patent/HU173919B/en unknown
- 1972-02-10 IE IE164/72A patent/IE36076B1/en unknown
- 1972-02-11 BR BR837/72A patent/BR7200837D0/en unknown
- 1972-02-11 DD DD160843A patent/DD95368A5/xx unknown
- 1972-02-11 ES ES399672A patent/ES399672A1/en not_active Expired
- 1972-02-11 ZM ZM27/72*UA patent/ZM2772A1/en unknown
- 1972-02-11 DE DE2206615A patent/DE2206615B2/en not_active Withdrawn
- 1972-02-11 BE BE779258A patent/BE779258A/en not_active IP Right Cessation
- 1972-02-11 NO NO403/72A patent/NO137010C/en unknown
- 1972-02-14 CS CS914A patent/CS163267B2/cs unknown
- 1972-02-14 RO RO7200069761A patent/RO63301A/en unknown
- 1972-02-14 FR FR7204826A patent/FR2125445B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DD95368A5 (en) | 1973-02-05 |
| AU463665B2 (en) | 1975-07-31 |
| DE2206615B2 (en) | 1980-05-29 |
| DE2206615A1 (en) | 1972-08-31 |
| NO137010C (en) | 1977-12-14 |
| IE36076L (en) | 1972-08-13 |
| FR2125445B1 (en) | 1977-07-15 |
| NO137010B (en) | 1977-09-05 |
| NL169588B (en) | 1982-03-01 |
| CS163267B2 (en) | 1975-08-29 |
| HU173919B (en) | 1979-09-28 |
| IE36076B1 (en) | 1976-08-04 |
| IT948491B (en) | 1973-05-30 |
| ES399672A1 (en) | 1976-05-01 |
| AU3881372A (en) | 1973-08-16 |
| TR18774A (en) | 1977-08-23 |
| ZM2772A1 (en) | 1973-02-21 |
| RO63301A (en) | 1978-07-15 |
| NL169588C (en) | 1982-08-02 |
| NL7101951A (en) | 1972-08-15 |
| ZA72781B (en) | 1972-10-25 |
| BR7200837D0 (en) | 1973-06-21 |
| GB1333544A (en) | 1973-10-10 |
| SE387336B (en) | 1976-09-06 |
| CA966638A (en) | 1975-04-29 |
| FR2125445A1 (en) | 1972-09-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RE | Patent lapsed |
Owner name: STAMICARBON N.V. Effective date: 19880228 |