FR2374314A1 - Procede de production d'acide cyanurique a partir d'uree et nouveau produit ainsi obtenu - Google Patents

Procede de production d'acide cyanurique a partir d'uree et nouveau produit ainsi obtenu

Info

Publication number
FR2374314A1
FR2374314A1 FR7738116A FR7738116A FR2374314A1 FR 2374314 A1 FR2374314 A1 FR 2374314A1 FR 7738116 A FR7738116 A FR 7738116A FR 7738116 A FR7738116 A FR 7738116A FR 2374314 A1 FR2374314 A1 FR 2374314A1
Authority
FR
France
Prior art keywords
urea
weight
cyanuric acid
parts
production
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.)
Granted
Application number
FR7738116A
Other languages
English (en)
Other versions
FR2374314B1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Monsanto Co
Original Assignee
Monsanto Co
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 Monsanto Co filed Critical Monsanto Co
Publication of FR2374314A1 publication Critical patent/FR2374314A1/fr
Application granted granted Critical
Publication of FR2374314B1 publication Critical patent/FR2374314B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • C07D251/30—Only oxygen atoms
    • C07D251/32—Cyanuric acid; Isocyanuric acid

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Fertilizers (AREA)

Abstract

Procédé de fabrication d'acide cyanurique brut et nouveau produit ainsi obtenu Dans ce procédé, on chauffe dans une zone de pyrolyse, entre environ 250 et 300 degrés C, un mélange comprenant 100 parties en poids d'urée, environ 20-200 parties en poids, en se basant sur l'urée, d'acide cyanurique recyclé et environ 3 à environ 40 parties en poids, en se basant sur l'urée, de nitrate d'ammonium ou d'acide nitrique concentré, pendant un temps suffisant pour achever la réaction de pyrolyse. La présente invention est particulierement utile pour fournir de l'acide cyanurique à pureté améliorée.
FR7738116A 1976-12-20 1977-12-16 Procede de production d'acide cyanurique a partir d'uree et nouveau produit ainsi obtenu Granted FR2374314A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/752,380 US4093808A (en) 1976-12-20 1976-12-20 Production of cyanuric acid from urea

Publications (2)

Publication Number Publication Date
FR2374314A1 true FR2374314A1 (fr) 1978-07-13
FR2374314B1 FR2374314B1 (fr) 1983-01-14

Family

ID=25026086

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7738116A Granted FR2374314A1 (fr) 1976-12-20 1977-12-16 Procede de production d'acide cyanurique a partir d'uree et nouveau produit ainsi obtenu

Country Status (9)

Country Link
US (1) US4093808A (fr)
JP (1) JPS5377078A (fr)
AU (1) AU511993B2 (fr)
BE (1) BE861997A (fr)
CA (1) CA1073908A (fr)
DE (1) DE2756579A1 (fr)
FR (1) FR2374314A1 (fr)
GB (1) GB1563466A (fr)
IT (1) IT1089772B (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7705049A (nl) * 1977-05-09 1978-11-13 Stamicarbon Werkwijze voor het bereiden van cyanuurzuur.
DE3404873A1 (de) * 1984-02-11 1985-08-14 Hoechst Ag, 6230 Frankfurt Verfahren zur herstellung von cyanursaeure
JPS63213830A (ja) * 1987-03-03 1988-09-06 Toshiba Electric Equip Corp 紫外線照射装置
JPH01105936U (fr) * 1988-01-07 1989-07-17
US4894452A (en) * 1988-04-18 1990-01-16 Lenroc Company Cyanuric acid production by controlled pyrolysis of biuret
WO1996006672A1 (fr) * 1994-08-26 1996-03-07 Us Sulfamate, Inc. Compositions derivees d'uree fondue deshydratee
CN115025720B (zh) * 2022-07-04 2023-08-22 国能(山东)能源环境有限公司 一种尿素热解制备三聚氰酸的系统及工艺
CN116165196B (zh) * 2023-04-13 2023-08-29 河南心连心化肥检测有限公司 一种高纯尿素中三聚氰酸的检测方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3107244A (en) * 1963-10-15 Production of cyanuric acid
US2682541A (en) * 1954-06-29 Preparation of aliphatic cyanurates
US2943088A (en) * 1959-06-22 1960-06-28 Westfall Richard Howard Production of cyanuric acid from urea
DE2300037A1 (de) * 1973-01-02 1974-07-04 Basf Ag Verfahren zur kontinuierlichen herstellung von cyanursaeure
NL7405629A (nl) * 1974-04-26 1975-10-28 Stamicarbon Werkwijze voor het bereiden van cyanuurzuur.
US3969352A (en) * 1974-10-02 1976-07-13 Fmc Corporation Crude cyanuric acid purification

Also Published As

Publication number Publication date
DE2756579C2 (fr) 1987-07-02
US4093808A (en) 1978-06-06
AU511993B2 (en) 1980-09-18
CA1073908A (fr) 1980-03-18
IT1089772B (it) 1985-06-18
JPS6133026B2 (fr) 1986-07-31
GB1563466A (en) 1980-03-26
JPS5377078A (en) 1978-07-08
DE2756579A1 (de) 1978-06-22
AU3172677A (en) 1979-06-28
FR2374314B1 (fr) 1983-01-14
BE861997A (fr) 1978-06-19

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse