BE360661A - - Google Patents
Info
- Publication number
- BE360661A BE360661A BE360661DA BE360661A BE 360661 A BE360661 A BE 360661A BE 360661D A BE360661D A BE 360661DA BE 360661 A BE360661 A BE 360661A
- Authority
- BE
- Belgium
- Prior art keywords
- urea
- condensation
- solution
- free
- mass
- Prior art date
Links
- WSFSSNUMVMOOMR-UHFFFAOYSA-N formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 31
- 238000009833 condensation Methods 0.000 claims description 15
- 230000005494 condensation Effects 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 10
- 238000005406 washing Methods 0.000 claims description 9
- 239000007859 condensation product Substances 0.000 claims description 7
- 239000000047 product Substances 0.000 claims description 7
- 239000012535 impurity Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 67
- 239000004202 carbamide Substances 0.000 description 38
- 235000013877 carbamide Nutrition 0.000 description 38
- 229960000539 carbamide Drugs 0.000 description 37
- 239000000243 solution Substances 0.000 description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 18
- 235000019256 formaldehyde Nutrition 0.000 description 14
- 229960004279 formaldehyde Drugs 0.000 description 14
- 239000002253 acid Substances 0.000 description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 9
- 238000006116 polymerization reaction Methods 0.000 description 9
- UMGDCJDMYOKAJW-UHFFFAOYSA-N Thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 238000009835 boiling Methods 0.000 description 5
- VKYKSIONXSXAKP-UHFFFAOYSA-N Hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 229960004011 Methenamine Drugs 0.000 description 3
- 150000007513 acids Chemical class 0.000 description 3
- 238000004821 distillation Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000004312 hexamethylene tetramine Substances 0.000 description 3
- 235000010299 hexamethylene tetramine Nutrition 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- -1 hydrogen ions Chemical class 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 229940045136 Urea Drugs 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000006482 condensation reaction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- PRKQVKDSMLBJBJ-UHFFFAOYSA-N Ammonium carbonate Chemical compound N.N.OC(O)=O PRKQVKDSMLBJBJ-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- AGGKEGLBGGJEBZ-UHFFFAOYSA-N Tetramethylenedisulfotetramine Chemical compound C1N(S2(=O)=O)CN3S(=O)(=O)N1CN2C3 AGGKEGLBGGJEBZ-UHFFFAOYSA-N 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 230000002378 acidificating Effects 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 239000001099 ammonium carbonate Substances 0.000 description 1
- 235000012501 ammonium carbonate Nutrition 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- XCZQFKOJEOJRRO-UHFFFAOYSA-O azanium;sulfurocyanidic acid Chemical compound [NH4+].OS(=O)(=O)C#N XCZQFKOJEOJRRO-UHFFFAOYSA-O 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 230000001627 detrimental Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000008098 formaldehyde solution Substances 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- DSKJXGYAJJHDOE-UHFFFAOYSA-N methylideneurea Chemical compound NC(=O)N=C DSKJXGYAJJHDOE-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001264 neutralization Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001105 regulatory Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 150000003335 secondary amines Chemical class 0.000 description 1
- 231100000486 side effect Toxicity 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000000446 sulfanediyl group Chemical group *S* 0.000 description 1
- ZJHHPAUQMCHPRB-UHFFFAOYSA-N urea urea Chemical compound NC(N)=O.NC(N)=O ZJHHPAUQMCHPRB-UHFFFAOYSA-N 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
Landscapes
- Phenolic Resins Or Amino Resins (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE360661A true BE360661A (it) |
Family
ID=33925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE360661D BE360661A (it) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE360661A (it) |
-
0
- BE BE360661D patent/BE360661A/fr unknown
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