CA1237130A - Recuperation separee de la cafeine et des solides du cafe adsorbes sur du carbone active - Google Patents
Recuperation separee de la cafeine et des solides du cafe adsorbes sur du carbone activeInfo
- Publication number
- CA1237130A CA1237130A CA000467958A CA467958A CA1237130A CA 1237130 A CA1237130 A CA 1237130A CA 000467958 A CA000467958 A CA 000467958A CA 467958 A CA467958 A CA 467958A CA 1237130 A CA1237130 A CA 1237130A
- Authority
- CA
- Canada
- Prior art keywords
- caffeine
- solution
- activated carbon
- aqueous
- solids
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- RYYVLZVUVIJVGH-UHFFFAOYSA-N caffeine Chemical compound CN1C(=O)N(C)C(=O)C2=C1N=CN2C RYYVLZVUVIJVGH-UHFFFAOYSA-N 0.000 title claims abstract description 178
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 155
- LPHGQDQBBGAPDZ-UHFFFAOYSA-N Isocaffeine Natural products CN1C(=O)N(C)C(=O)C2=C1N(C)C=N2 LPHGQDQBBGAPDZ-UHFFFAOYSA-N 0.000 title claims abstract description 89
- 229960001948 caffeine Drugs 0.000 title claims abstract description 89
- VJEONQKOZGKCAK-UHFFFAOYSA-N caffeine Natural products CN1C(=O)N(C)C(=O)C2=C1C=CN2C VJEONQKOZGKCAK-UHFFFAOYSA-N 0.000 title claims abstract description 89
- 239000007787 solid Substances 0.000 title claims abstract description 53
- 238000011084 recovery Methods 0.000 title abstract description 6
- 239000003637 basic solution Substances 0.000 claims abstract description 37
- 238000000034 method Methods 0.000 claims abstract description 23
- 239000003929 acidic solution Substances 0.000 claims abstract description 20
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 39
- 239000000243 solution Substances 0.000 claims description 31
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 13
- 239000002253 acid Substances 0.000 claims description 7
- 239000007864 aqueous solution Substances 0.000 claims description 5
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 4
- 239000000908 ammonium hydroxide Substances 0.000 claims description 4
- 239000002585 base Substances 0.000 claims description 4
- 239000000284 extract Substances 0.000 claims description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 4
- 239000011260 aqueous acid Substances 0.000 claims description 3
- 241000533293 Sesbania emerus Species 0.000 claims description 2
- 238000001704 evaporation Methods 0.000 claims description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 2
- 238000011010 flushing procedure Methods 0.000 claims 1
- 239000013505 freshwater Substances 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 description 21
- 238000001179 sorption measurement Methods 0.000 description 8
- 150000001720 carbohydrates Chemical class 0.000 description 7
- 235000014633 carbohydrates Nutrition 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 239000003463 adsorbent Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 159000000021 acetate salts Chemical class 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000010828 elution Methods 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 1
- KNFLNGRLKALWRF-LDXSYGEZSA-N CSCC[C@H](N)C(=O)N1CCC[C@H]1C(=O)N[C@@H](C(=O)N[C@@H](CCCN=C(N)N)C(=O)N[C@H](CC=1C2=CC=CC=C2NC=1)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CCCCN)C(=O)N1[C@@H](CCC1)C(=O)N[C@@H](C(C)C)C(N)=O)CC1=CC=CC=C1 Chemical compound CSCC[C@H](N)C(=O)N1CCC[C@H]1C(=O)N[C@@H](C(=O)N[C@@H](CCCN=C(N)N)C(=O)N[C@H](CC=1C2=CC=CC=C2NC=1)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CCCCN)C(=O)N1[C@@H](CCC1)C(=O)N[C@@H](C(C)C)C(N)=O)CC1=CC=CC=C1 KNFLNGRLKALWRF-LDXSYGEZSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 239000006286 aqueous extract Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000001256 steam distillation Methods 0.000 description 1
- 230000002311 subsequent effect Effects 0.000 description 1
Landscapes
- Tea And Coffee (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000467958A CA1237130A (fr) | 1984-11-15 | 1984-11-15 | Recuperation separee de la cafeine et des solides du cafe adsorbes sur du carbone active |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000467958A CA1237130A (fr) | 1984-11-15 | 1984-11-15 | Recuperation separee de la cafeine et des solides du cafe adsorbes sur du carbone active |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1237130A true CA1237130A (fr) | 1988-05-24 |
Family
ID=4129160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000467958A Expired CA1237130A (fr) | 1984-11-15 | 1984-11-15 | Recuperation separee de la cafeine et des solides du cafe adsorbes sur du carbone active |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1237130A (fr) |
-
1984
- 1984-11-15 CA CA000467958A patent/CA1237130A/fr not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry | ||
| MKEX | Expiry |
Effective date: 20050524 |