BE644083A - - Google Patents
Info
- Publication number
- BE644083A BE644083A BE644083DA BE644083A BE 644083 A BE644083 A BE 644083A BE 644083D A BE644083D A BE 644083DA BE 644083 A BE644083 A BE 644083A
- Authority
- BE
- Belgium
- Prior art keywords
- formaldehyde
- water
- methanol
- distillation
- added
- Prior art date
Links
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 49
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 33
- 235000019256 formaldehyde Nutrition 0.000 description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 238000000034 method Methods 0.000 description 11
- 239000002253 acid Substances 0.000 description 10
- 238000004821 distillation Methods 0.000 description 9
- NKDDWNXOKDWJAK-UHFFFAOYSA-N dimethoxymethane Chemical compound COCOC NKDDWNXOKDWJAK-UHFFFAOYSA-N 0.000 description 8
- 239000003643 water by type Substances 0.000 description 7
- 239000007864 aqueous solution Substances 0.000 description 6
- 150000007513 acids Chemical class 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 238000010790 dilution Methods 0.000 description 3
- 239000012895 dilution Substances 0.000 description 3
- KLKFAASOGCDTDT-UHFFFAOYSA-N ethoxymethoxyethane Chemical compound CCOCOCC KLKFAASOGCDTDT-UHFFFAOYSA-N 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 3
- 239000012452 mother liquor Substances 0.000 description 3
- 230000001988 toxicity Effects 0.000 description 3
- 231100000419 toxicity Toxicity 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 241001675082 Pulex Species 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 2
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910015900 BF3 Inorganic materials 0.000 description 1
- 235000011777 Corchorus aestuans Nutrition 0.000 description 1
- 240000004792 Corchorus capsularis Species 0.000 description 1
- 235000010862 Corchorus capsularis Nutrition 0.000 description 1
- 241000238576 Daphnia pulex Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 1
- 241000283283 Orcinus orca Species 0.000 description 1
- 241000277331 Salmonidae Species 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000010339 dilation Effects 0.000 description 1
- NYPJDWWKZLNGGM-RPWUZVMVSA-N esfenvalerate Chemical compound C=1C([C@@H](C#N)OC(=O)[C@@H](C(C)C)C=2C=CC(Cl)=CC=2)=CC=CC=1OC1=CC=CC=C1 NYPJDWWKZLNGGM-RPWUZVMVSA-N 0.000 description 1
- BAQKJENAVQLANS-UHFFFAOYSA-N fenbutrazate Chemical compound C=1C=CC=CC=1C(CC)C(=O)OCCN(C1C)CCOC1C1=CC=CC=C1 BAQKJENAVQLANS-UHFFFAOYSA-N 0.000 description 1
- 229960002533 fenbutrazate Drugs 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004508 fractional distillation Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 235000010299 hexamethylene tetramine Nutrition 0.000 description 1
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 239000003760 tallow Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/78—Separation; Purification; Stabilisation; Use of additives
- C07C45/81—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation
- C07C45/82—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation by distillation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/78—Separation; Purification; Stabilisation; Use of additives
- C07C45/85—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to a chemical modification
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF0039096 | 1963-02-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE644083A true BE644083A (enrdf_load_stackoverflow) | 1964-06-15 |
Family
ID=7097623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE644083D BE644083A (enrdf_load_stackoverflow) | 1963-02-23 | 1964-02-20 |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE644083A (enrdf_load_stackoverflow) |
-
1964
- 1964-02-20 BE BE644083D patent/BE644083A/fr unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3433831A (en) | Separation and purification of acrylic acid from acetic acid by solvent extraction and azeotropic distillation with a two component solvent-entrainer system | |
| JP6207503B2 (ja) | 酢酸の回収方法 | |
| FR2509732A1 (fr) | Procede pour recuperer, a l'aide d'un fluide a l'etat quasi-critique ou super-critique contenant notamment du dioxyde de carbone, l'oxyde d'ethylene de solutions aqueuses | |
| US4554054A (en) | Methacrylic acid separation | |
| JP2003238547A (ja) | プロピレンオキサイドの精製方法 | |
| KR900004634A (ko) | 니트로페놀성 부산물의 추출, 회수 및 처리방법 | |
| JPS609865B2 (ja) | ウイツテンのｄｍｔ法における残留物から重金属酸化触媒を製造しかつ再使用するための方法 | |
| US2987451A (en) | Process for purifying acrylonitrile | |
| EP0017294B1 (fr) | Procédé pour l'épuration d'oxydes d'oléfines | |
| CN108218671B (zh) | 环氧丙烷工业废水处理系统 | |
| BE644083A (enrdf_load_stackoverflow) | ||
| KR860002445A (ko) | 알콜 회수법 | |
| EP0228957B1 (fr) | Procédé d'extraction de composés organiques de leurs solutions ou suspensions aqueuses | |
| CN113480406B (zh) | 一种1,3-丁二醇及其制备方法 | |
| Stout et al. | Preparation of Aldehyde-Free Ethyl Alcohol: Rapid Method | |
| US3036126A (en) | Dibasic acid treating process | |
| BE881273Q (fr) | Procede d'extraction liquide-liquide du germanium | |
| EP0121466A1 (fr) | Procédé de décomposition d'un complexe d'acide orthobenzoyl-benzoique, de fluorure d'hydrogène et de trifluorure de bore | |
| JP2003160530A (ja) | （メタ）アクリル酸の精製方法 | |
| JPS6331458B2 (enrdf_load_stackoverflow) | ||
| US2114825A (en) | Process for partial dehydration of acetic acid and other lower fatty acids | |
| US2961462A (en) | Dibasic acid treating process | |
| JPH03279344A (ja) | 酢酸廃水中の酢酸濃度低減方法 | |
| US2645665A (en) | Formaldehyde purification process | |
| CH373366A (de) | Verfahren zur Abtrennung von Epichlorhydrin aus Mischungen |