BE362932A - - Google Patents
Info
- Publication number
- BE362932A BE362932A BE362932DA BE362932A BE 362932 A BE362932 A BE 362932A BE 362932D A BE362932D A BE 362932DA BE 362932 A BE362932 A BE 362932A
- Authority
- BE
- Belgium
- Prior art keywords
- urea
- formaldehyde
- mol
- solution
- less
- Prior art date
Links
- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 92
- WSFSSNUMVMOOMR-UHFFFAOYSA-N formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 90
- 235000013877 carbamide Nutrition 0.000 claims description 50
- 239000004202 carbamide Substances 0.000 claims description 46
- 238000009833 condensation Methods 0.000 claims description 13
- 230000005494 condensation Effects 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 230000002378 acidificating Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000007859 condensation product Substances 0.000 claims description 5
- 150000003672 ureas Chemical class 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 4
- 239000008098 formaldehyde solution Substances 0.000 claims description 2
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 claims 2
- 239000006193 liquid solution Substances 0.000 claims 2
- 108010050421 23S rRNA m1G745 methyltransferase Proteins 0.000 claims 1
- 235000019256 formaldehyde Nutrition 0.000 description 28
- 229960004279 formaldehyde Drugs 0.000 description 28
- QTBSBXVTEAMEQO-UHFFFAOYSA-N acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 15
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 13
- 238000006243 chemical reaction Methods 0.000 description 10
- 238000009835 boiling Methods 0.000 description 8
- 230000001264 neutralization Effects 0.000 description 7
- 235000011121 sodium hydroxide Nutrition 0.000 description 5
- BDAGIHXWWSANSR-UHFFFAOYSA-N formic acid Chemical compound OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- UMGDCJDMYOKAJW-UHFFFAOYSA-N Thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- -1 sawdust Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07G—COMPOUNDS OF UNKNOWN CONSTITUTION
- C07G99/00—Subject matter not provided for in other groups of this subclass
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Phenolic Resins Or Amino Resins (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE362932A true BE362932A (es) |
Family
ID=35752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE362932D BE362932A (es) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE362932A (es) |
-
0
- BE BE362932D patent/BE362932A/fr unknown
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