IT948491B - Perfezionamento negli impianto per il trattamento di soluzioni ammo niacali a temperatura elevata - Google Patents
Perfezionamento negli impianto per il trattamento di soluzioni ammo niacali a temperatura elevataInfo
- Publication number
- IT948491B IT948491B IT48234/72A IT4823472A IT948491B IT 948491 B IT948491 B IT 948491B IT 48234/72 A IT48234/72 A IT 48234/72A IT 4823472 A IT4823472 A IT 4823472A IT 948491 B IT948491 B IT 948491B
- Authority
- IT
- Italy
- Prior art keywords
- plant
- improvement
- solutions
- treatment
- high temperature
- 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 (nl) | 1971-02-13 | 1971-02-13 | Werkwijze voor het bij verhoogde van ammoniumcarbamaat bevattende oplossingen. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT948491B true IT948491B (it) | 1973-05-30 |
Family
ID=19812478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT48234/72A IT948491B (it) | 1971-02-13 | 1972-02-09 | Perfezionamento negli impianto per il trattamento di soluzioni ammo niacali a temperatura elevata |
Country Status (20)
| Country | Link |
|---|---|
| AU (1) | AU463665B2 (it) |
| BE (1) | BE779258A (it) |
| BR (1) | BR7200837D0 (it) |
| CA (1) | CA966638A (it) |
| CS (1) | CS163267B2 (it) |
| DD (1) | DD95368A5 (it) |
| DE (1) | DE2206615B2 (it) |
| ES (1) | ES399672A1 (it) |
| FR (1) | FR2125445B1 (it) |
| GB (1) | GB1333544A (it) |
| HU (1) | HU173919B (it) |
| IE (1) | IE36076B1 (it) |
| IT (1) | IT948491B (it) |
| NL (1) | NL169588C (it) |
| NO (1) | NO137010C (it) |
| RO (1) | RO63301A (it) |
| SE (1) | SE387336B (it) |
| TR (1) | TR18774A (it) |
| ZA (1) | ZA72781B (it) |
| ZM (1) | ZM2772A1 (it) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8304381A (nl) * | 1983-12-21 | 1985-07-16 | Stamicarbon | Werkwijze en inrichting voor het bereiden van melamine. |
| JPS63121641A (ja) * | 1986-11-10 | 1988-05-25 | Nippon Yakin Kogyo Co Ltd | オ−ステナイトステンレス鋼製シ−ズヒ−タ外部被覆 |
| 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 |
| EA202290076A1 (ru) * | 2019-07-05 | 2022-03-21 | Стамикарбон Б.В. | Детали из ферритной стали в установках по производству карбамида |
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 (de) * | 1967-03-15 | 1970-12-03 | Du Pont | Korrosionsbestaendige Eisenchromlegierungen |
-
1971
- 1971-02-13 TR TR18774A patent/TR18774A/xx unknown
- 1971-02-13 NL NLAANVRAGE7101951,A patent/NL169588C/xx not_active IP Right Cessation
-
1972
- 1972-02-07 ZA ZA720781A patent/ZA72781B/xx unknown
- 1972-02-08 CA CA134,144A patent/CA966638A/en not_active Expired
- 1972-02-09 GB GB615572A patent/GB1333544A/en not_active Expired
- 1972-02-09 IT IT48234/72A patent/IT948491B/it active
- 1972-02-09 AU AU38813/72A patent/AU463665B2/en not_active Expired
- 1972-02-10 SE SE7201605A patent/SE387336B/xx unknown
- 1972-02-10 IE IE164/72A patent/IE36076B1/xx unknown
- 1972-02-10 HU HU72SA2312A patent/HU173919B/hu unknown
- 1972-02-11 BE BE779258A patent/BE779258A/xx not_active IP Right Cessation
- 1972-02-11 BR BR837/72A patent/BR7200837D0/pt unknown
- 1972-02-11 ZM ZM27/72*UA patent/ZM2772A1/xx unknown
- 1972-02-11 ES ES399672A patent/ES399672A1/es not_active Expired
- 1972-02-11 NO NO403/72A patent/NO137010C/no unknown
- 1972-02-11 DD DD160843A patent/DD95368A5/xx unknown
- 1972-02-11 DE DE2206615A patent/DE2206615B2/de not_active Withdrawn
- 1972-02-14 FR FR7204826A patent/FR2125445B1/fr not_active Expired
- 1972-02-14 RO RO7200069761A patent/RO63301A/ro unknown
- 1972-02-14 CS CS914A patent/CS163267B2/cs unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL169588B (nl) | 1982-03-01 |
| ZA72781B (en) | 1972-10-25 |
| CS163267B2 (it) | 1975-08-29 |
| NO137010B (no) | 1977-09-05 |
| DD95368A5 (it) | 1973-02-05 |
| NL169588C (nl) | 1982-08-02 |
| GB1333544A (en) | 1973-10-10 |
| FR2125445A1 (it) | 1972-09-29 |
| TR18774A (tr) | 1977-08-23 |
| BE779258A (fr) | 1972-08-11 |
| NO137010C (no) | 1977-12-14 |
| IE36076B1 (en) | 1976-08-04 |
| AU3881372A (en) | 1973-08-16 |
| FR2125445B1 (it) | 1977-07-15 |
| ZM2772A1 (en) | 1973-02-21 |
| DE2206615A1 (de) | 1972-08-31 |
| IE36076L (en) | 1972-08-13 |
| HU173919B (hu) | 1979-09-28 |
| RO63301A (fr) | 1978-07-15 |
| SE387336B (sv) | 1976-09-06 |
| ES399672A1 (es) | 1976-05-01 |
| CA966638A (en) | 1975-04-29 |
| NL7101951A (it) | 1972-08-15 |
| BR7200837D0 (pt) | 1973-06-21 |
| AU463665B2 (en) | 1975-07-31 |
| DE2206615B2 (de) | 1980-05-29 |
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