PL66463B1 - - Google Patents
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- Publication number
- PL66463B1 PL66463B1 PL125957A PL12595768A PL66463B1 PL 66463 B1 PL66463 B1 PL 66463B1 PL 125957 A PL125957 A PL 125957A PL 12595768 A PL12595768 A PL 12595768A PL 66463 B1 PL66463 B1 PL 66463B1
- Authority
- PL
- Poland
- Prior art keywords
- urea
- reaction
- temperature
- crystallizer
- stage
- Prior art date
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- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 26
- YAMHXTCMCPHKLN-UHFFFAOYSA-N imidazolidin-2-one Chemical compound O=C1NCCN1 YAMHXTCMCPHKLN-UHFFFAOYSA-N 0.000 claims description 24
- 238000006243 chemical reaction Methods 0.000 claims description 15
- 239000004202 carbamide Substances 0.000 claims description 13
- PIICEJLVQHRZGT-UHFFFAOYSA-N 1,2-ethanediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims description 10
- 239000007795 chemical reaction product Substances 0.000 claims description 7
- 238000002425 crystallisation Methods 0.000 claims description 6
- 230000005712 crystallization Effects 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 4
- 230000035484 reaction time Effects 0.000 claims description 4
- 239000008187 granular material Substances 0.000 claims description 2
- 230000003179 granulation Effects 0.000 claims 1
- 238000005469 granulation Methods 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- 239000002904 solvent Substances 0.000 description 7
- 238000003786 synthesis reaction Methods 0.000 description 7
- 230000002194 synthesizing Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- 239000000969 carrier Substances 0.000 description 3
- 238000004821 distillation Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- XZUAPPXGIFNDRA-UHFFFAOYSA-N ethane-1,2-diamine;hydrate Chemical compound O.NCCN XZUAPPXGIFNDRA-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 231100000078 corrosive Toxicity 0.000 description 1
- 231100001010 corrosive Toxicity 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 239000006193 liquid solution Substances 0.000 description 1
- 238000011068 load Methods 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000019796 monopotassium phosphate Nutrition 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000002035 prolonged Effects 0.000 description 1
- 230000001681 protective Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL66463B1 true PL66463B1 (zh) | 1972-06-30 |
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