BE477130A - - Google Patents
Info
- Publication number
- BE477130A BE477130A BE477130DA BE477130A BE 477130 A BE477130 A BE 477130A BE 477130D A BE477130D A BE 477130DA BE 477130 A BE477130 A BE 477130A
- Authority
- BE
- Belgium
- Prior art keywords
- thiourea
- cyanamide
- process according
- solvent
- carried out
- Prior art date
Links
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims description 54
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 20
- XZMCDFZZKTWFGF-UHFFFAOYSA-N Cyanamide Chemical compound NC#N XZMCDFZZKTWFGF-UHFFFAOYSA-N 0.000 claims description 19
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 15
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 12
- 239000002904 solvent Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 6
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims description 5
- 229920006395 saturated elastomer Polymers 0.000 claims description 5
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 229910021529 ammonia Inorganic materials 0.000 claims description 3
- 239000012431 aqueous reaction media Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000010908 decantation Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 239000012429 reaction media Substances 0.000 claims description 2
- 239000000243 solution Substances 0.000 description 14
- 238000006243 chemical reaction Methods 0.000 description 12
- 238000002360 preparation method Methods 0.000 description 6
- 239000008346 aqueous phase Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- MVXMNHYVCLMLDD-UHFFFAOYSA-N 4-methoxynaphthalene-1-carbaldehyde Chemical compound C1=CC=C2C(OC)=CC=C(C=O)C2=C1 MVXMNHYVCLMLDD-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- ZGSDJMADBJCNPN-UHFFFAOYSA-N [S-][NH3+] Chemical compound [S-][NH3+] ZGSDJMADBJCNPN-UHFFFAOYSA-N 0.000 description 2
- 159000000007 calcium salts Chemical class 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 239000010413 mother solution Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- UYJXRRSPUVSSMN-UHFFFAOYSA-P ammonium sulfide Chemical compound [NH4+].[NH4+].[S-2] UYJXRRSPUVSSMN-UHFFFAOYSA-P 0.000 description 1
- 239000003125 aqueous solvent Substances 0.000 description 1
- BERUYFDYBAFTLZ-UHFFFAOYSA-N benzene;propan-1-ol Chemical compound CCCO.C1=CC=CC=C1 BERUYFDYBAFTLZ-UHFFFAOYSA-N 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE477130A true BE477130A (d) |
Family
ID=125284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE477130D BE477130A (d) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE477130A (d) |
-
0
- BE BE477130D patent/BE477130A/fr unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1077058A (fr) | Procede de recuperation de l'acide acetique a partir de ses solutions aqueuses de faible concentration | |
| BE477130A (d) | ||
| CA1339989C (fr) | Procede pour la dissolution du soufre | |
| CH270534A (fr) | Procédé de préparation de la thiourée. | |
| BE491132A (d) | ||
| CA1265531A (fr) | Procede de separation et de purification de l'acide parahydroxybenzoique | |
| US2521778A (en) | Preparation of thiourea | |
| BE430869A (d) | ||
| FR2768426A1 (fr) | Procede de fabrication d'hexafluorophosphate de lithium | |
| BE432460A (fr) | Procédé et dispositif pour la production d'urée | |
| CH654558A5 (fr) | Procede pour la production d'oxyfluorure de niobium. | |
| BE352907A (d) | ||
| BE541136A (d) | ||
| CH399468A (fr) | Procédé de préparation du caprolactame | |
| BE674674A (d) | ||
| BE582143A (d) | ||
| BE498029A (d) | ||
| BE525263A (d) | ||
| BE505022A (d) | ||
| CH266092A (fr) | Procédé de préparation de sels de guanidine. | |
| BE481294A (d) | ||
| BE559642A (d) | ||
| BE831000A (fr) | Procede de purification de l'acide phosphorique | |
| CH367186A (fr) | Procédé de préparation du bis (p-hydroxy-phényl)-2,2-propane | |
| CH276719A (fr) | Procédé de préparation de la méthionine. |