BRPI0909420A2 - processo para produção de melamina de alta pureza a partir de uréia. - Google Patents

processo para produção de melamina de alta pureza a partir de uréia.

Info

Publication number
BRPI0909420A2
BRPI0909420A2 BRPI0909420-2A BRPI0909420A BRPI0909420A2 BR PI0909420 A2 BRPI0909420 A2 BR PI0909420A2 BR PI0909420 A BRPI0909420 A BR PI0909420A BR PI0909420 A2 BRPI0909420 A2 BR PI0909420A2
Authority
BR
Brazil
Prior art keywords
melamine
obtaining
polycondensates
ammeline
ammelide
Prior art date
Application number
BRPI0909420-2A
Other languages
English (en)
Inventor
Sioli Giancarlo
Original Assignee
Urea Casale S.A.
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=39473225&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BRPI0909420(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Urea Casale S.A. filed Critical Urea Casale S.A.
Publication of BRPI0909420A2 publication Critical patent/BRPI0909420A2/pt
Publication of BRPI0909420B1 publication Critical patent/BRPI0909420B1/pt

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
    • C07D251/40—Nitrogen atoms
    • C07D251/54—Three nitrogen atoms
    • C07D251/62—Purification of melamine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0004—Crystallisation cooling by heat exchange
    • B01D9/0013—Crystallisation cooling by heat exchange by indirect heat exchange
    • 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
    • B01J19/0053—Details of the reactor
    • B01J19/006—Baffles
    • 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
    • B01J19/18—Stationary reactors having moving elements inside
    • 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
    • B01J19/18—Stationary reactors having moving elements inside
    • B01J19/1862—Stationary reactors having moving elements inside placed in series
    • 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
    • B01J19/18—Stationary reactors having moving elements inside
    • B01J19/1868—Stationary reactors having moving elements inside resulting in a loop-type movement
    • B01J19/1881—Stationary reactors having moving elements inside resulting in a loop-type movement externally, i.e. the mixture leaving the vessel and subsequently re-entering it
    • 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
    • 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
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
    • B01J2219/00076—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements inside the reactor
    • B01J2219/00083—Coils
    • 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
    • B01J2219/00761—Details of the reactor
    • B01J2219/00763—Baffles
    • B01J2219/00765—Baffles attached to the reactor wall
    • B01J2219/00768—Baffles attached to the reactor wall vertical
    • 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
    • C07D251/42—One nitrogen atom
    • C07D251/46—One nitrogen atom with oxygen or sulfur atoms attached to the two other ring carbon atoms
    • 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
    • C07D251/48—Two nitrogen atoms
    • C07D251/52—Two nitrogen atoms with an oxygen or sulfur atom attached to the third ring carbon atom

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

processo para produção de melamina de alta pureza a partir de uréia" a presente invenção está correlacionada a um processo para obtenção de melamina de alta pureza, caracterizado pelo fato de compreender as etapas de: - esfriar rapidamente (choque térmico) um material fundido de melamina, isento de gases de exaustão da síntese da 10 melamina e contendo impurezas de melamina, tais como, ammeline, ammelide e policondensados, com uma solução aquosa compreendendo amônia sob determinadas condições, de modo a substancialmente converter os policondensados em melamina, obtendo-se uma solução de melamina 15 substancialmente livre de policondensados; - recuperar melamina da dita solução de melamina mediante cristalização, obtendo-se cristais de melamina e um licor mãe de cristalização de melamina; - tratar o dito licor mãe de cristalização de melamina sob determinadas condições, de modo a converter pelo menos uma porção de seu teor de ammeline em ammelide e melamina, obtendo-se um líquido mãe tratado tendo pelo menos um reduzido teor de ammeline. a invenção também se refere a uma unidade de produção não-catalítica de alta pressão para produção de melamina de alta pureza, implementando o processo acima e um adequado equipamento para ser usado em tal unidade de produção.
BRPI0909420-2A 2008-03-04 2009-02-24 Processo para produção de melamina de alta pureza a partir de uréia. BRPI0909420B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP08004013.2 2008-03-04
EP08004013A EP2098516A1 (en) 2008-03-04 2008-03-04 Process for the production of high purity melamine from urea
PCT/EP2009/001294 WO2009109314A1 (en) 2008-03-04 2009-02-24 Process for the production of high purity melamine from urea

Publications (2)

Publication Number Publication Date
BRPI0909420A2 true BRPI0909420A2 (pt) 2019-02-26
BRPI0909420B1 BRPI0909420B1 (pt) 2019-10-15

Family

ID=39473225

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0909420-2A BRPI0909420B1 (pt) 2008-03-04 2009-02-24 Processo para produção de melamina de alta pureza a partir de uréia.

Country Status (15)

Country Link
US (2) US9073877B2 (pt)
EP (2) EP2098516A1 (pt)
JP (1) JP5612488B2 (pt)
KR (1) KR101582307B1 (pt)
CN (2) CN102850286B (pt)
AT (1) ATE511504T1 (pt)
AU (1) AU2009221276B2 (pt)
BR (1) BRPI0909420B1 (pt)
CA (1) CA2716505C (pt)
DK (1) DK2254874T3 (pt)
ES (1) ES2367411T3 (pt)
PL (1) PL2254874T3 (pt)
RU (1) RU2515885C2 (pt)
SA (1) SA109300154B1 (pt)
WO (1) WO2009109314A1 (pt)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2308856A1 (en) * 2009-10-09 2011-04-13 Borealis Agrolinz Melamine GmbH Water recycling in a melamine production process
CN103102319B (zh) * 2011-11-11 2016-02-24 北京勤邦生物技术有限公司 三聚氰胺半抗原及其制备方法和应用
CN102908802A (zh) * 2012-11-07 2013-02-06 袁哲 一种新型三聚氰胺干捕器
EP2907567A1 (en) * 2014-02-18 2015-08-19 Casale Sa Combined reactor for high-pressure synthesis of melamine
WO2016104446A1 (ja) * 2014-12-26 2016-06-30 旭硝子株式会社 ガラス及び化学強化ガラス
JP6725496B2 (ja) * 2015-03-31 2020-07-22 株式会社プライムポリマー ポリプロピレン樹脂組成物及びその製造方法、二軸延伸フィルム及びその製造方法、並びにフィルムコンデンサ用キャパシタフィルム
CN105289721B (zh) * 2015-10-15 2018-01-02 广东工业大学 一种制备能降解多种染料的蜜勒胺的方法
EP3272743A1 (en) 2016-07-22 2018-01-24 Casale SA Process for melamine purification
IT201700014505A1 (it) * 2017-02-09 2018-08-09 Eurotecnica Melamine Luxemburg Zweigniederlassung In Ittigen Apparato di cristallizzazione di melammina e impianto di melammina impiegante lo stesso
EP4098356A1 (en) 2018-01-26 2022-12-07 Casale Sa Plant and process for the synthesis of melamine with offgas recovery in a tied-in urea plant
CN108465288A (zh) * 2018-05-07 2018-08-31 河南省中原大化集团有限责任公司 一种物料之间热能交换装置及应用方法
IT201800005382A1 (it) * 2018-05-15 2019-11-15 Procedimento e dispositivo per separare cristalli di melammina in un processo di produzione di melammina da urea
IT201800007367A1 (it) * 2018-07-20 2020-01-20 Procedimento a basso consumo energetico e ridotto consumo di ammoniaca per la produzione di melammina a elevata purezza tramite pirolisi dell’urea, e relativo impianto
CN113663606A (zh) * 2021-08-06 2021-11-19 四川金象赛瑞化工股份有限公司 一种单氰胺二聚反应器及其工艺
CN114100494B (zh) * 2021-11-08 2023-07-04 江西睿达新能源科技有限公司 一种三元前驱体的生产设备及生产工艺

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US3161638A (en) 1964-12-15 Filter
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US3637686A (en) * 1969-02-10 1972-01-25 Nissan Chemical Ind Ltd Process for recovering purified melamine
JPS5679678A (en) * 1979-12-04 1981-06-30 Mitsui Toatsu Chem Inc Utilization and recovery of ammelide and ammeline
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ES2209560T3 (es) 1998-11-13 2004-06-16 Ami Agrolinz Melamine International Gmbh Procedimiento para la obtencion de melamina pura.
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Also Published As

Publication number Publication date
US20110003990A1 (en) 2011-01-06
SA109300154B1 (ar) 2012-01-24
WO2009109314A1 (en) 2009-09-11
CN102850286A (zh) 2013-01-02
ES2367411T3 (es) 2011-11-03
BRPI0909420B1 (pt) 2019-10-15
CA2716505C (en) 2016-06-21
RU2010140444A (ru) 2012-04-10
AU2009221276A1 (en) 2009-09-11
EP2254874A1 (en) 2010-12-01
US9045439B2 (en) 2015-06-02
US9073877B2 (en) 2015-07-07
KR20100123752A (ko) 2010-11-24
CN102850286B (zh) 2015-01-14
EP2254874B1 (en) 2011-06-01
JP2011513348A (ja) 2011-04-28
PL2254874T3 (pl) 2011-10-31
CN101959869A (zh) 2011-01-26
AU2009221276B2 (en) 2012-11-15
EP2098516A1 (en) 2009-09-09
CA2716505A1 (en) 2009-09-11
CN101959869B (zh) 2013-03-27
KR101582307B1 (ko) 2016-01-04
JP5612488B2 (ja) 2014-10-22
ATE511504T1 (de) 2011-06-15
US20130028800A1 (en) 2013-01-31
RU2515885C2 (ru) 2014-05-20
DK2254874T3 (da) 2011-09-19

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Legal Events

Date Code Title Description
B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B25A Requested transfer of rights approved

Owner name: CASALE SA (CH)

B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 15/10/2019, OBSERVADAS AS CONDICOES LEGAIS. (CO) 10 (DEZ) ANOS CONTADOS A PARTIR DE 15/10/2019, OBSERVADAS AS CONDICOES LEGAIS