BE496740A - - Google Patents

Info

Publication number

BE496740A

BE496740A BE496740DA BE496740A BE 496740 A BE496740 A BE 496740A BE 496740D A BE496740D A BE 496740DA BE 496740 A BE496740 A BE 496740A

Authority

BE

Belgium

Prior art keywords

urea

crystallization

crystals

glyoxal

acetylene diurea

Prior art date

Links

• Espacenet
• Global Dossier
• Discuss

• XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 29
• 239000004202 carbamide Substances 0.000 claims description 29
• WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 15
• 239000013078 crystal Substances 0.000 claims description 14
• VPVSTMAPERLKKM-UHFFFAOYSA-N glycoluril Chemical compound N1C(=O)NC2NC(=O)NC21 VPVSTMAPERLKKM-UHFFFAOYSA-N 0.000 claims description 12
• 238000002425 crystallisation Methods 0.000 claims description 8
• 230000008025 crystallization Effects 0.000 claims description 8
• 238000000034 method Methods 0.000 claims description 8
• 239000007859 condensation product Substances 0.000 claims description 7
• NNTWKXKLHMTGBU-UHFFFAOYSA-N 4,5-dihydroxyimidazolidin-2-one Chemical compound OC1NC(=O)NC1O NNTWKXKLHMTGBU-UHFFFAOYSA-N 0.000 claims description 6
• 239000000047 product Substances 0.000 claims description 4
• XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
• 238000010438 heat treatment Methods 0.000 claims description 3
• 238000005507 spraying Methods 0.000 claims description 3
• 230000008020 evaporation Effects 0.000 claims description 2
• 238000001704 evaporation Methods 0.000 claims description 2
• 238000004519 manufacturing process Methods 0.000 claims description 2
• 239000012452 mother liquor Substances 0.000 claims description 2
• 238000007711 solidification Methods 0.000 claims description 2
• 230000008023 solidification Effects 0.000 claims description 2
• 239000000126 substance Substances 0.000 claims 1
• 239000000243 solution Substances 0.000 description 9
• 238000007792 addition Methods 0.000 description 7
• 239000002245 particle Substances 0.000 description 3
• 238000003756 stirring Methods 0.000 description 3
• OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
• 239000007864 aqueous solution Substances 0.000 description 2
• 238000009833 condensation Methods 0.000 description 2
• 230000005494 condensation Effects 0.000 description 2
• 230000004927 fusion Effects 0.000 description 2
• 238000003860 storage Methods 0.000 description 2
• UUGLSEIATNSHRI-UHFFFAOYSA-N 1,3,4,6-tetrakis(hydroxymethyl)-3a,6a-dihydroimidazo[4,5-d]imidazole-2,5-dione Chemical compound OCN1C(=O)N(CO)C2C1N(CO)C(=O)N2CO UUGLSEIATNSHRI-UHFFFAOYSA-N 0.000 description 1
• AZUYLZMQTIKGSC-UHFFFAOYSA-N 1-[6-[4-(5-chloro-6-methyl-1H-indazol-4-yl)-5-methyl-3-(1-methylindazol-5-yl)pyrazol-1-yl]-2-azaspiro[3.3]heptan-2-yl]prop-2-en-1-one Chemical compound ClC=1C(=C2C=NNC2=CC=1C)C=1C(=NN(C=1C)C1CC2(CN(C2)C(C=C)=O)C1)C=1C=C2C=NN(C2=CC=1)C AZUYLZMQTIKGSC-UHFFFAOYSA-N 0.000 description 1
• 206010044565 Tremor Diseases 0.000 description 1
• 229920001807 Urea-formaldehyde Polymers 0.000 description 1
• 239000011549 crystallization solution Substances 0.000 description 1
• 238000001035 drying Methods 0.000 description 1
• 239000012467 final product Substances 0.000 description 1
• 239000007788 liquid Substances 0.000 description 1
• 239000000463 material Substances 0.000 description 1
• WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
• 238000005057 refrigeration Methods 0.000 description 1
• 238000000926 separation method Methods 0.000 description 1