BE380900A - - Google Patents

Info

Publication number

BE380900A

BE380900A BE380900DA BE380900A BE 380900 A BE380900 A BE 380900A BE 380900D A BE380900D A BE 380900DA BE 380900 A BE380900 A BE 380900A

Authority

BE

Belgium

Prior art keywords

solution

urea

formaldehyde

mol

thiourea

Prior art date

Links

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• XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 98
• WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 63
• UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims description 52
• 235000013877 carbamide Nutrition 0.000 claims description 41
• 239000004202 carbamide Substances 0.000 claims description 37
• 238000000034 method Methods 0.000 claims description 24
• 230000007935 neutral effect Effects 0.000 claims description 17
• 239000000047 product Substances 0.000 claims description 17
• 239000003377 acid catalyst Substances 0.000 claims description 13
• WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims description 13
• 239000000203 mixture Substances 0.000 claims description 10
• 229920005989 resin Polymers 0.000 claims description 9
• 239000011347 resin Substances 0.000 claims description 9
• 239000007859 condensation product Substances 0.000 claims description 8
• 238000004519 manufacturing process Methods 0.000 claims description 7
• 238000006243 chemical reaction Methods 0.000 claims description 6
• 150000001299 aldehydes Chemical class 0.000 claims description 5
• QUBQYFYWUJJAAK-UHFFFAOYSA-N oxymethurea Chemical compound OCNC(=O)NCO QUBQYFYWUJJAAK-UHFFFAOYSA-N 0.000 claims description 4
• 229950005308 oxymethurea Drugs 0.000 claims description 4
• 150000003672 ureas Chemical class 0.000 claims description 4
• VGGLHLAESQEWCR-UHFFFAOYSA-N N-(hydroxymethyl)urea Chemical compound NC(=O)NCO VGGLHLAESQEWCR-UHFFFAOYSA-N 0.000 claims description 3
• XGEGHDBEHXKFPX-UHFFFAOYSA-N N-methyl urea Chemical compound CNC(N)=O XGEGHDBEHXKFPX-UHFFFAOYSA-N 0.000 claims description 3
• 238000001816 cooling Methods 0.000 claims description 3
• 238000010438 heat treatment Methods 0.000 claims description 3
• CALBDOUFMLLGQH-UHFFFAOYSA-N hydroxymethylthiourea Chemical compound NC(=S)NCO CALBDOUFMLLGQH-UHFFFAOYSA-N 0.000 claims description 3
• 238000009833 condensation Methods 0.000 description 18
• 230000005494 condensation Effects 0.000 description 18
• QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 9
• 239000000843 powder Substances 0.000 description 8
• 230000006835 compression Effects 0.000 description 7
• 238000007906 compression Methods 0.000 description 7
• 238000006116 polymerization reaction Methods 0.000 description 6
• 230000002378 acidificating effect Effects 0.000 description 5
• 238000009835 boiling Methods 0.000 description 4
• 239000000463 material Substances 0.000 description 4
• 239000002253 acid Substances 0.000 description 3
• 230000002209 hydrophobic effect Effects 0.000 description 3
• XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
• 229920001342 Bakelite® Polymers 0.000 description 2
• 239000004637 bakelite Substances 0.000 description 2
• 230000015572 biosynthetic process Effects 0.000 description 2
• 229920002678 cellulose Polymers 0.000 description 2
• 239000001913 cellulose Substances 0.000 description 2
• 238000006482 condensation reaction Methods 0.000 description 2
• 238000001035 drying Methods 0.000 description 2
• 230000000694 effects Effects 0.000 description 1
• 230000009931 harmful effect Effects 0.000 description 1
• XGEGHDBEHXKFPX-NJFSPNSNSA-N methylurea Chemical compound [14CH3]NC(N)=O XGEGHDBEHXKFPX-NJFSPNSNSA-N 0.000 description 1
• 238000002156 mixing Methods 0.000 description 1
• 239000000126 substance Substances 0.000 description 1