FR1451252A - Procédé et appareillage perfectionnés pour la séparation de la mélamine - Google Patents

Procédé et appareillage perfectionnés pour la séparation de la mélamine

Info

Publication number
FR1451252A
FR1451252A FR4807A FR4807A FR1451252A FR 1451252 A FR1451252 A FR 1451252A FR 4807 A FR4807 A FR 4807A FR 4807 A FR4807 A FR 4807A FR 1451252 A FR1451252 A FR 1451252A
Authority
FR
France
Prior art keywords
melamine
gaseous mixture
vertical
gas
flow path
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
Application number
FR4807A
Other languages
English (en)
French (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.)
Chemical Construction Corp
Original Assignee
Chemical Construction Corp
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 Chemical Construction Corp filed Critical Chemical Construction Corp
Application granted granted Critical
Publication of FR1451252A publication Critical patent/FR1451252A/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B01J19/0006—Controlling or regulating processes
    • B01J19/002—Avoiding undesirable reactions or side-effects, e.g. avoiding explosions, or improving the yield by suppressing side-reactions
    • 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
    • B01J19/24—Stationary reactors without moving elements inside
    • B01J19/2415—Tubular reactors
    • B01J19/242—Tubular reactors 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00121—Controlling the temperature by direct heating or cooling
    • B01J2219/00123—Controlling the temperature by direct heating or cooling adding a temperature modifying medium to the reactants
    • B01J2219/00126—Cryogenic coolants
    • 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
    • B01J2219/00121—Controlling the temperature by direct heating or cooling
    • B01J2219/0013—Controlling the temperature by direct heating or cooling by condensation of reactants
    • 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
    • B01J2219/00132—Controlling the temperature using electric heating or cooling elements
    • B01J2219/00135—Electric resistance heaters
    • 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
    • B01J2219/0015—Controlling the temperature by thermal insulation means
    • B01J2219/00155—Controlling the temperature by thermal insulation means using insulating materials or refractories
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S261/00—Gas and liquid contact apparatus
    • Y10S261/54—Venturi scrubbers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Degasification And Air Bubble Elimination (AREA)
  • Physical Water Treatments (AREA)
FR4807A 1964-02-11 1965-02-09 Procédé et appareillage perfectionnés pour la séparation de la mélamine Expired FR1451252A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US344020A US3290308A (en) 1964-02-11 1964-02-11 Synthesis of pure melamine

Publications (1)

Publication Number Publication Date
FR1451252A true FR1451252A (fr) 1966-01-07

Family

ID=23348700

Family Applications (1)

Application Number Title Priority Date Filing Date
FR4807A Expired FR1451252A (fr) 1964-02-11 1965-02-09 Procédé et appareillage perfectionnés pour la séparation de la mélamine

Country Status (7)

Country Link
US (2) US3290308A (US06373033-20020416-M00071.png)
BE (1) BE659588A (US06373033-20020416-M00071.png)
DE (1) DE1545656A1 (US06373033-20020416-M00071.png)
FR (1) FR1451252A (US06373033-20020416-M00071.png)
GB (1) GB1101861A (US06373033-20020416-M00071.png)
NL (1) NL6501633A (US06373033-20020416-M00071.png)
SE (1) SE308117B (US06373033-20020416-M00071.png)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6801577A (US06373033-20020416-M00071.png) * 1968-02-02 1969-08-05
US3593968A (en) * 1968-09-26 1971-07-20 Stone & Webster Eng Corp Rapid cooling for high-temperature gas streams
US3615247A (en) * 1968-12-23 1971-10-26 Phillips Petroleum Co Modified combustion zone in a thermally insulated apparatus
NL6919152A (US06373033-20020416-M00071.png) * 1969-12-20 1971-06-22
US3756580A (en) * 1972-01-31 1973-09-04 Peabody Engineering Corp Gas washing apparatus
DE3031124A1 (de) * 1980-08-18 1982-04-08 Basf Ag, 6700 Ludwigshafen Verfahren zur abtrennung von fluessigem harnstoff aus den abgasen der melaminsynthese
US4565867A (en) * 1984-01-05 1986-01-21 Melamine Chemicals, Inc. Anhydrous high-pressure melamine synthesis
AT397214B (de) * 1992-03-30 1994-02-25 Chemie Linz Gmbh Vorrichtung zur abscheidung von melamin
DE4211763A1 (de) * 1992-04-08 1993-10-14 Chemie Linz Deutschland Vorrichtung zur Abscheidung von Melamin
CN109529397B (zh) * 2018-12-28 2024-07-02 四川金象赛瑞化工股份有限公司 一种凝华结晶设备及结晶方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3132143A (en) * 1964-05-05 Process for recovering melamine
US2918467A (en) * 1959-12-22 Production of melamine
US2575497A (en) * 1951-11-20 Sheetsxsheet i
US2755887A (en) * 1956-07-24 Melamine purification
US3310558A (en) * 1967-03-21 Melamine recovery
US2890999A (en) * 1955-11-22 1959-06-16 Exxon Research Engineering Co Quenching fluid coker vapors
US3057700A (en) * 1959-10-12 1962-10-09 Chemical Construction Corp Phosphoric acid process
US3116348A (en) * 1960-07-27 1963-12-31 Cottrell Res Inc Gas treating device
GB916187A (en) * 1960-09-05 1963-01-23 Stamicarbon Process for the preparation of pure melamine

Also Published As

Publication number Publication date
US3451787A (en) 1969-06-24
NL6501633A (US06373033-20020416-M00071.png) 1965-08-12
US3290308A (en) 1966-12-06
SE308117B (US06373033-20020416-M00071.png) 1969-02-03
GB1101861A (en) 1968-01-31
BE659588A (US06373033-20020416-M00071.png) 1965-08-11
DE1545656A1 (de) 1969-06-26

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