GB1033027A - Reaction apparatus, particularly suitable for use in the production of melamine from urea - Google Patents
Reaction apparatus, particularly suitable for use in the production of melamine from ureaInfo
- Publication number
- GB1033027A GB1033027A GB4004165A GB4004165A GB1033027A GB 1033027 A GB1033027 A GB 1033027A GB 4004165 A GB4004165 A GB 4004165A GB 4004165 A GB4004165 A GB 4004165A GB 1033027 A GB1033027 A GB 1033027A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reaction vessel
- heating rods
- reaction
- partition
- inlet means
- 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
Links
- 238000006243 chemical reaction Methods 0.000 title abstract 8
- 229920000877 Melamine resin Polymers 0.000 title abstract 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title abstract 2
- 239000004202 carbamide Substances 0.000 title abstract 2
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 title abstract 2
- 238000005192 partition Methods 0.000 abstract 6
- 238000010438 heat treatment Methods 0.000 abstract 4
- 239000000463 material Substances 0.000 abstract 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 abstract 1
- 239000006227 byproduct Substances 0.000 abstract 1
- 239000007795 chemical reaction product Substances 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 238000005485 electric heating Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000000376 reactant Substances 0.000 abstract 1
- 239000011541 reaction mixture Substances 0.000 abstract 1
- 229910052719 titanium Inorganic materials 0.000 abstract 1
- 239000010936 titanium Substances 0.000 abstract 1
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
- B01J19/0053—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
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/04—Pressure vessels, e.g. autoclaves
-
- 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
- B01J6/00—Heat treatments such as Calcining; Fusing ; Pyrolysis
-
- 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
- B01J2219/02—Apparatus characterised by their chemically-resistant properties
- B01J2219/025—Apparatus characterised by their chemically-resistant properties characterised by the construction materials of the reactor vessel proper
- B01J2219/0277—Metal based
-
- 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
- B01J2219/18—Details relating to the spatial orientation of the reactor
- B01J2219/185—Details relating to the spatial orientation of the reactor vertical
-
- 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
- B01J2219/19—Details relating to the geometry of the reactor
- B01J2219/194—Details relating to the geometry of the reactor round
- B01J2219/1941—Details relating to the geometry of the reactor round circular or disk-shaped
- B01J2219/1943—Details relating to the geometry of the reactor round circular or disk-shaped cylindrical
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
A reaction apparatus, especially suitable for the conversion of urea to melamine according to Specification 1,033,026, comprises a vertical pressure resistant reaction vessel, inlet means to the bottom portion of said reaction vessel for continuously feeding liquid feed thereinto, a series of vertical electrical heating rods for heating the materials within said reaction vessel, particularly wherein the inlet means opens into the reaction vessel at the base of said heating rods, said heaters being so disposed within said vessel as to provide therein, in use of the apparatus, a hot zone to induce gas and thermal lift and a laterally adjacent relatively cooler zone to allow down-draught and a dip tube extending vertically downwardly from the top of said reaction vessel, to a level above the level of the top of the heaters for continuously removing the reaction product and by-products therefrom. A particularly suitable arrangement for the heating rods is in an annular array around a vertically disposed hollow partition member, the space within which forms said cooler zone and said partition member including vents near its lower end, preferably the lower end of said partition member being located immediately above the inlet means and having a horizontal partition below said vents for directing the material entering from said inlet to the lower portion of said hot zone via further vents below said horizontal partition. A preferred shape of the apparatus and partition is cylindrical. All surfaces which in use come into contact with the reactant or reaction mixture are preferably made of corrosion resistant material, especially titanium; the electric heating rods in the preferred embodiment being of the bayonet type. The invention is described with reference to three drawings (not shown) which show the apparatus overall in section and details of the base and head of the apparatus.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US17791962A | 1962-03-06 | 1962-03-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1033027A true GB1033027A (en) | 1966-06-15 |
Family
ID=22650457
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4004165A Expired GB1033027A (en) | 1962-03-06 | 1963-03-05 | Reaction apparatus, particularly suitable for use in the production of melamine from urea |
| GB881163A Expired GB1033026A (en) | 1962-03-06 | 1963-03-05 | Process for the production of melamine from urea |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB881163A Expired GB1033026A (en) | 1962-03-06 | 1963-03-05 | Process for the production of melamine from urea |
Country Status (2)
| Country | Link |
|---|---|
| GB (2) | GB1033027A (en) |
| NL (1) | NL289748A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2675952C2 (en) * | 2014-01-10 | 2018-12-25 | Эуротекника Меламине, Люксембург, Цвайгнидерлассунг ин Иттиген | Tube heat exchange assembly and apparatus, in particular reactor for production of melamine comprising such heat exchange assembly |
-
1963
- 1963-03-04 NL NL289748D patent/NL289748A/xx unknown
- 1963-03-05 GB GB4004165A patent/GB1033027A/en not_active Expired
- 1963-03-05 GB GB881163A patent/GB1033026A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL289748A (en) | 1965-06-10 |
| GB1033026A (en) | 1966-06-15 |
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