ATE30192T1 - Verfahren zur bestimmung und kontrolle der zusammenstellung von waessrigen loesungen von nh3 und co2. - Google Patents

Verfahren zur bestimmung und kontrolle der zusammenstellung von waessrigen loesungen von nh3 und co2.

Info

Publication number
ATE30192T1
ATE30192T1 AT83201834T AT83201834T ATE30192T1 AT E30192 T1 ATE30192 T1 AT E30192T1 AT 83201834 T AT83201834 T AT 83201834T AT 83201834 T AT83201834 T AT 83201834T AT E30192 T1 ATE30192 T1 AT E30192T1
Authority
AT
Austria
Prior art keywords
composition
aqueous solutions
determining
ammonia
carbon dioxide
Prior art date
Application number
AT83201834T
Other languages
English (en)
Inventor
Andreas Johannes Biermans
Henk Christiaan Burks
Original Assignee
Stamicarbon
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Stamicarbon filed Critical Stamicarbon
Application granted granted Critical
Publication of ATE30192T1 publication Critical patent/ATE30192T1/de

Links

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)
  • Immunology (AREA)
  • Pathology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Treating Waste Gases (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
AT83201834T 1982-12-24 1983-12-22 Verfahren zur bestimmung und kontrolle der zusammenstellung von waessrigen loesungen von nh3 und co2. ATE30192T1 (de)

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.
EP83201834A EP0114442B1 (de) 1982-12-24 1983-12-22 Verfahren zur Bestimmung und Kontrolle der Zusammenstellung von wässrigen Lösungen von NH3 und CO2

Publications (1)

Publication Number Publication Date
ATE30192T1 true ATE30192T1 (de) 1987-10-15

Family

ID=19840796

Family Applications (1)

Application Number Title Priority Date Filing Date
AT83201834T ATE30192T1 (de) 1982-12-24 1983-12-22 Verfahren zur bestimmung und kontrolle der zusammenstellung von waessrigen loesungen von nh3 und co2.

Country Status (11)

Country Link
US (1) US4572830A (de)
EP (1) EP0114442B1 (de)
JP (1) JPS59133451A (de)
KR (1) KR870000495B1 (de)
AT (1) ATE30192T1 (de)
CA (1) CA1211297A (de)
DE (1) DE3374028D1 (de)
ES (1) ES528353A0 (de)
IN (1) IN161337B (de)
NL (1) NL8204979A (de)
YU (1) YU249483A (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
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
US8663995B2 (en) 2009-05-28 2014-03-04 Toyo Engineering Corporation Method for analyzing aqueous ammonium carbamate solution, and method for operating unreacted gas absorber
DE102012215635A1 (de) * 2012-09-04 2014-03-06 Robert Bosch Gmbh Messelement sowie Verfahren zur Unterscheidung von verschiedenartigenFlüssigkeiten
EP3521273A1 (de) 2018-02-05 2019-08-07 YARA International ASA Verfahren und system zur steuerung eines betriebs eines harnstoffherstellungsprozesses
EP4424666A1 (de) * 2023-03-02 2024-09-04 Casale Sa Verfahren zur bestimmung von parametern eines stroms eines harnstoffsyntheseverfahrens

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3940440A (en) * 1970-11-10 1976-02-24 Ivo Mavrovic Method of controlling urea system
NL7307036A (de) * 1973-05-21 1974-11-25

Also Published As

Publication number Publication date
CA1211297A (en) 1986-09-16
ES8501882A1 (es) 1984-12-01
ES528353A0 (es) 1984-12-01
KR840007633A (ko) 1984-12-08
KR870000495B1 (ko) 1987-03-12
NL8204979A (nl) 1984-07-16
YU249483A (en) 1986-04-30
EP0114442B1 (de) 1987-10-07
EP0114442A1 (de) 1984-08-01
US4572830A (en) 1986-02-25
JPS59133451A (ja) 1984-07-31
DE3374028D1 (en) 1987-11-12
IN161337B (de) 1987-11-14

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TH1611A (th) กระบวนการสำหรับหาค่าส่วนประกอบของสารละลาย nh3 และ co2 ในน้ำและสำหรับควบคุมส่วนประกอบดังกล่าว

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