DE3374028D1 - Process for determining and controlling the composition of aqueous solutions of nh3 and co2 - Google Patents
Process for determining and controlling the composition of aqueous solutions of nh3 and co2Info
- Publication number
- DE3374028D1 DE3374028D1 DE8383201834T DE3374028T DE3374028D1 DE 3374028 D1 DE3374028 D1 DE 3374028D1 DE 8383201834 T DE8383201834 T DE 8383201834T DE 3374028 T DE3374028 T DE 3374028T DE 3374028 D1 DE3374028 D1 DE 3374028D1
- Authority
- DE
- Germany
- Prior art keywords
- composition
- aqueous solutions
- determining
- ammonia
- carbon dioxide
- 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
- 239000000203 mixture Substances 0.000 title abstract 6
- 239000007864 aqueous solution Substances 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract 6
- 229910021529 ammonia Inorganic materials 0.000 abstract 3
- 239000001569 carbon dioxide Substances 0.000 abstract 3
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 3
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 abstract 1
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 abstract 1
- 239000001099 ammonium carbonate Substances 0.000 abstract 1
- 235000012501 ammonium carbonate Nutrition 0.000 abstract 1
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 229910001868 water Inorganic materials 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/14—Investigating or analyzing materials by the use of thermal means by using distillation, extraction, sublimation, condensation, freezing, or crystallisation
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
- C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
- C07D251/12—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
- C07D251/26—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with only hetero atoms directly attached to ring carbon atoms
- C07D251/40—Nitrogen atoms
- C07D251/54—Three nitrogen atoms
- C07D251/56—Preparation of melamine
- C07D251/60—Preparation of melamine from urea or 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T436/00—Chemistry: analytical and immunological testing
- Y10T436/10—Composition for standardization, calibration, simulation, stabilization, preparation or preservation; processes of use in preparation for chemical testing
- Y10T436/109163—Inorganic standards or controls
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T436/00—Chemistry: analytical and immunological testing
- Y10T436/11—Automated chemical analysis
- Y10T436/117497—Automated chemical analysis with a continuously flowing sample or carrier stream
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T436/00—Chemistry: analytical and immunological testing
- Y10T436/17—Nitrogen containing
- Y10T436/173845—Amine and quaternary ammonium
- Y10T436/175383—Ammonia
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Pathology (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Treating Waste Gases (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Carbon And Carbon Compounds (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL8204979A NL8204979A (nl) | 1982-12-24 | 1982-12-24 | Werkwijze voor het bepalen en regelen van de samenstelling van waterige oplossingen van nh3 en co2. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE3374028D1 true DE3374028D1 (en) | 1987-11-12 |
Family
ID=19840796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE8383201834T Expired DE3374028D1 (en) | 1982-12-24 | 1983-12-22 | Process for determining and controlling the composition of aqueous solutions of nh3 and co2 |
Country Status (11)
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU5191690A (en) * | 1989-02-22 | 1990-09-26 | Atochem North America, Inc. | Method for measuring low levels of ammonia in process gas streams |
| US5586447A (en) * | 1994-07-20 | 1996-12-24 | Gas Research Institute | Concentration control in an absorption chiller |
| US5724823A (en) * | 1996-10-10 | 1998-03-10 | Carrier Corporation | Absorption over-concentration control |
| NL1014280C2 (nl) * | 2000-02-03 | 2001-08-06 | Dsm Nv | Werkwijze voor de bereiding van melamine uit ureum. |
| NL1014281C2 (nl) * | 2000-02-03 | 2001-08-06 | Dsm Nv | Werkwijze voor de bereiding van melamine uit ureum. |
| NL1015929C2 (nl) * | 2000-08-14 | 2002-02-18 | Dsm Nv | Werkwijze voor de bereiding van melamine uit ureum. |
| NL1019913C2 (nl) * | 2002-02-07 | 2003-08-08 | Dsm Nv | Werkwijze voor het bereiden van melamine. |
| NL1026003C2 (nl) * | 2004-04-22 | 2005-10-25 | Dsm Ip Assets Bv | Werkwijze voor het bereiden van ureum uit kooldioxide en ammoniak in een ureumfabriek. |
| JP4928740B2 (ja) * | 2005-05-31 | 2012-05-09 | 東洋エンジニアリング株式会社 | 尿素合成方法および装置 |
| JP5564497B2 (ja) | 2009-05-28 | 2014-07-30 | 東洋エンジニアリング株式会社 | カルバミン酸アンモニウム水溶液の分析方法および未反応ガス吸収槽の運転方法 |
| DE102012215635A1 (de) * | 2012-09-04 | 2014-03-06 | Robert Bosch Gmbh | Messelement sowie Verfahren zur Unterscheidung von verschiedenartigenFlüssigkeiten |
| EP3521273A1 (en) | 2018-02-05 | 2019-08-07 | YARA International ASA | A method and system for controlling an operation of a urea production process |
| EP4424666A1 (en) * | 2023-03-02 | 2024-09-04 | Casale Sa | Method for determining parameters of a stream of a urea synthesis process |
| CN118062857A (zh) * | 2024-03-06 | 2024-05-24 | 云南水富云天化有限公司 | 利用尿素装置停车废液生产稀氨水产品的方法 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3940440A (en) * | 1970-11-10 | 1976-02-24 | Ivo Mavrovic | Method of controlling urea system |
| NL7307036A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1973-05-21 | 1974-11-25 |
-
1982
- 1982-12-24 NL NL8204979A patent/NL8204979A/nl not_active Application Discontinuation
-
1983
- 1983-12-20 IN IN1552/CAL/83A patent/IN161337B/en unknown
- 1983-12-22 CA CA000444115A patent/CA1211297A/en not_active Expired
- 1983-12-22 EP EP83201834A patent/EP0114442B1/en not_active Expired
- 1983-12-22 DE DE8383201834T patent/DE3374028D1/de not_active Expired
- 1983-12-22 AT AT83201834T patent/ATE30192T1/de not_active IP Right Cessation
- 1983-12-23 ES ES528353A patent/ES8501882A1/es not_active Expired
- 1983-12-23 US US06/564,884 patent/US4572830A/en not_active Expired - Fee Related
- 1983-12-23 JP JP58242342A patent/JPS59133451A/ja active Pending
- 1983-12-23 YU YU02494/83A patent/YU249483A/xx unknown
- 1983-12-24 KR KR1019830006167A patent/KR870000495B1/ko not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| KR840007633A (ko) | 1984-12-08 |
| ES528353A0 (es) | 1984-12-01 |
| KR870000495B1 (ko) | 1987-03-12 |
| EP0114442A1 (en) | 1984-08-01 |
| YU249483A (en) | 1986-04-30 |
| CA1211297A (en) | 1986-09-16 |
| NL8204979A (nl) | 1984-07-16 |
| EP0114442B1 (en) | 1987-10-07 |
| IN161337B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1987-11-14 |
| JPS59133451A (ja) | 1984-07-31 |
| US4572830A (en) | 1986-02-25 |
| ES8501882A1 (es) | 1984-12-01 |
| ATE30192T1 (de) | 1987-10-15 |
Similar Documents
| Publication | Publication Date | Title |
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| DE3374028D1 (en) | Process for determining and controlling the composition of aqueous solutions of nh3 and co2 | |
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| TH1611A (th) | กระบวนการสำหรับหาค่าส่วนประกอบของสารละลาย nh3 และ co2 ในน้ำและสำหรับควบคุมส่วนประกอบดังกล่าว | |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |