NL8204979A - Werkwijze voor het bepalen en regelen van de samenstelling van waterige oplossingen van nh3 en co2. - Google Patents
Werkwijze voor het bepalen en regelen van de samenstelling van waterige oplossingen van nh3 en co2. Download PDFInfo
- Publication number
- NL8204979A NL8204979A NL8204979A NL8204979A NL8204979A NL 8204979 A NL8204979 A NL 8204979A NL 8204979 A NL8204979 A NL 8204979A NL 8204979 A NL8204979 A NL 8204979A NL 8204979 A NL8204979 A NL 8204979A
- Authority
- NL
- Netherlands
- Prior art keywords
- solution
- composition
- urea
- aqueous
- ammonium carbamate
- Prior art date
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 39
- 239000007864 aqueous solution Substances 0.000 title claims abstract description 21
- 239000000243 solution Substances 0.000 claims abstract description 56
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 claims abstract description 23
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910001868 water Inorganic materials 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000001099 ammonium carbonate Substances 0.000 claims abstract description 9
- 235000012501 ammonium carbonate Nutrition 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims abstract description 6
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 27
- 239000004202 carbamide Substances 0.000 claims description 27
- 230000015572 biosynthetic process Effects 0.000 claims description 21
- 238000003786 synthesis reaction Methods 0.000 claims description 19
- 238000002360 preparation method Methods 0.000 claims description 8
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 6
- 229920000877 Melamine resin Polymers 0.000 claims description 6
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 230000001502 supplementing effect Effects 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 claims 1
- 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
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 abstract 1
- 239000013078 crystal Substances 0.000 description 12
- 238000010586 diagram Methods 0.000 description 7
- 238000002425 crystallisation Methods 0.000 description 6
- 230000008025 crystallization Effects 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 5
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 3
- 230000009469 supplementation Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 235000011950 custard Nutrition 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 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)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Carbon And Carbon Compounds (AREA)
Priority Applications (11)
| 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. |
| IN1552/CAL/83A IN161337B (cs) | 1982-12-24 | 1983-12-20 | |
| CA000444115A CA1211297A (en) | 1982-12-24 | 1983-12-22 | Process for determining and controlling the composition of aqueous solutions of nh.sub.3 and co.sub.2 |
| AT83201834T ATE30192T1 (de) | 1982-12-24 | 1983-12-22 | Verfahren zur bestimmung und kontrolle der zusammenstellung von waessrigen loesungen von nh3 und co2. |
| DE8383201834T DE3374028D1 (en) | 1982-12-24 | 1983-12-22 | Process for determining and controlling the composition of aqueous solutions of nh3 and co2 |
| EP83201834A EP0114442B1 (en) | 1982-12-24 | 1983-12-22 | Process for determining and controlling the composition of aqueous solutions of nh3 and co2 |
| YU02494/83A YU249483A (en) | 1982-12-24 | 1983-12-23 | Method for detemining the composition of nh3 and co2 water solution |
| US06/564,884 US4572830A (en) | 1982-12-24 | 1983-12-23 | Process for determining and controlling the composition of aqueous solutions of NH3 and CO2 |
| JP58242342A JPS59133451A (ja) | 1982-12-24 | 1983-12-23 | Ｎｈ↓３及びｃｏ↓２水溶液の組成の測定法及び制御法 |
| ES528353A ES8501882A1 (es) | 1982-12-24 | 1983-12-23 | Un procedimiento para determinar la composicion de soluciones acuosas de nh3 y co2 |
| KR1019830006167A KR870000495B1 (ko) | 1982-12-24 | 1983-12-24 | 암모니아(nh₂)와 이산화탄소(co₂)의 수용액의 조성을 조절하고 결정하는 방법 |
Applications Claiming Priority (2)
| 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. |
| NL8204979 | 1982-12-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL8204979A true NL8204979A (nl) | 1984-07-16 |
Family
ID=19840796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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. |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US4572830A (cs) |
| EP (1) | EP0114442B1 (cs) |
| JP (1) | JPS59133451A (cs) |
| KR (1) | KR870000495B1 (cs) |
| AT (1) | ATE30192T1 (cs) |
| CA (1) | CA1211297A (cs) |
| DE (1) | DE3374028D1 (cs) |
| ES (1) | ES8501882A1 (cs) |
| IN (1) | IN161337B (cs) |
| NL (1) | NL8204979A (cs) |
| YU (1) | YU249483A (cs) |
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 (cs) * | 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 AT AT83201834T patent/ATE30192T1/de not_active IP Right Cessation
- 1983-12-22 DE DE8383201834T patent/DE3374028D1/de not_active Expired
- 1983-12-22 EP EP83201834A patent/EP0114442B1/en not_active Expired
- 1983-12-23 ES ES528353A patent/ES8501882A1/es not_active Expired
- 1983-12-23 JP JP58242342A patent/JPS59133451A/ja active Pending
- 1983-12-23 US US06/564,884 patent/US4572830A/en not_active Expired - Fee Related
- 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 |
|---|---|
| IN161337B (cs) | 1987-11-14 |
| YU249483A (en) | 1986-04-30 |
| ATE30192T1 (de) | 1987-10-15 |
| KR870000495B1 (ko) | 1987-03-12 |
| US4572830A (en) | 1986-02-25 |
| CA1211297A (en) | 1986-09-16 |
| JPS59133451A (ja) | 1984-07-31 |
| DE3374028D1 (en) | 1987-11-12 |
| ES528353A0 (es) | 1984-12-01 |
| EP0114442A1 (en) | 1984-08-01 |
| EP0114442B1 (en) | 1987-10-07 |
| KR840007633A (ko) | 1984-12-08 |
| ES8501882A1 (es) | 1984-12-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A1B | A search report has been drawn up | ||
| A85 | Still pending on 85-01-01 | ||
| BV | The patent application has lapsed |