EP2637759A1 - Procede de purification d'un melange visqueux contenant un ou plusieurs contaminants - Google Patents
Procede de purification d'un melange visqueux contenant un ou plusieurs contaminantsInfo
- Publication number
- EP2637759A1 EP2637759A1 EP11794537.8A EP11794537A EP2637759A1 EP 2637759 A1 EP2637759 A1 EP 2637759A1 EP 11794537 A EP11794537 A EP 11794537A EP 2637759 A1 EP2637759 A1 EP 2637759A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- viscous mixture
- initial
- mixture
- monophasic
- activated carbon
- 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.)
- Withdrawn
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 360
- 239000000356 contaminant Substances 0.000 title claims abstract description 92
- 238000000034 method Methods 0.000 title claims abstract description 66
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 302
- 239000000126 substance Substances 0.000 claims abstract description 81
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 63
- 239000002245 particle Substances 0.000 claims abstract description 28
- 239000012071 phase Substances 0.000 claims description 152
- 229920000642 polymer Polymers 0.000 claims description 118
- 238000000746 purification Methods 0.000 claims description 70
- 239000008346 aqueous phase Substances 0.000 claims description 52
- 150000003839 salts Chemical class 0.000 claims description 42
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 39
- 239000011780 sodium chloride Substances 0.000 claims description 39
- 238000001179 sorption measurement Methods 0.000 claims description 26
- 238000001914 filtration Methods 0.000 claims description 18
- CXKWCBBOMKCUKX-UHFFFAOYSA-M methylene blue Chemical compound [Cl-].C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 CXKWCBBOMKCUKX-UHFFFAOYSA-M 0.000 claims description 16
- 229960000907 methylthioninium chloride Drugs 0.000 claims description 16
- 230000003750 conditioning effect Effects 0.000 claims description 14
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 12
- 229920001223 polyethylene glycol Polymers 0.000 claims description 12
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 12
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 10
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 claims description 8
- 239000002202 Polyethylene glycol Substances 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 7
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 6
- 229910000160 potassium phosphate Inorganic materials 0.000 claims description 6
- 235000011009 potassium phosphates Nutrition 0.000 claims description 6
- CPRMKOQKXYSDML-UHFFFAOYSA-M rubidium hydroxide Chemical compound [OH-].[Rb+] CPRMKOQKXYSDML-UHFFFAOYSA-M 0.000 claims description 6
- 238000009738 saturating Methods 0.000 claims description 6
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 6
- 235000017550 sodium carbonate Nutrition 0.000 claims description 6
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 claims description 6
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 229920002307 Dextran Polymers 0.000 claims description 5
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims description 5
- 235000011130 ammonium sulphate Nutrition 0.000 claims description 5
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 5
- 235000011152 sodium sulphate Nutrition 0.000 claims description 5
- 229930013930 alkaloid Natural products 0.000 claims description 4
- 150000003797 alkaloid derivatives Chemical class 0.000 claims description 4
- FLJPGEWQYJVDPF-UHFFFAOYSA-L caesium sulfate Chemical compound [Cs+].[Cs+].[O-]S([O-])(=O)=O FLJPGEWQYJVDPF-UHFFFAOYSA-L 0.000 claims description 4
- INHCSSUBVCNVSK-UHFFFAOYSA-L lithium sulfate Chemical compound [Li+].[Li+].[O-]S([O-])(=O)=O INHCSSUBVCNVSK-UHFFFAOYSA-L 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 150000002894 organic compounds Chemical class 0.000 claims description 4
- 239000000575 pesticide Substances 0.000 claims description 4
- 102000004169 proteins and genes Human genes 0.000 claims description 4
- 108090000623 proteins and genes Proteins 0.000 claims description 4
- 239000003053 toxin Substances 0.000 claims description 4
- 231100000765 toxin Toxicity 0.000 claims description 4
- 229920003169 water-soluble polymer Polymers 0.000 claims description 4
- MFGOFGRYDNHJTA-UHFFFAOYSA-N 2-amino-1-(2-fluorophenyl)ethanol Chemical compound NCC(O)C1=CC=CC=C1F MFGOFGRYDNHJTA-UHFFFAOYSA-N 0.000 claims description 3
- 229920000896 Ethulose Polymers 0.000 claims description 3
- 239000001859 Ethyl hydroxyethyl cellulose Substances 0.000 claims description 3
- 229920001917 Ficoll Polymers 0.000 claims description 3
- 239000005569 Iron sulphate Substances 0.000 claims description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 3
- 229920001218 Pullulan Polymers 0.000 claims description 3
- 239000004373 Pullulan Substances 0.000 claims description 3
- 239000004115 Sodium Silicate Substances 0.000 claims description 3
- 239000004280 Sodium formate Substances 0.000 claims description 3
- 229920002125 Sokalan® Polymers 0.000 claims description 3
- ZEMWIYASLJTEHQ-UHFFFAOYSA-J aluminum;sodium;disulfate;dodecahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.O.O.[Na+].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZEMWIYASLJTEHQ-UHFFFAOYSA-J 0.000 claims description 3
- FJDQFPXHSGXQBY-UHFFFAOYSA-L caesium carbonate Chemical compound [Cs+].[Cs+].[O-]C([O-])=O FJDQFPXHSGXQBY-UHFFFAOYSA-L 0.000 claims description 3
- 229910000024 caesium carbonate Inorganic materials 0.000 claims description 3
- HUCVOHYBFXVBRW-UHFFFAOYSA-M caesium hydroxide Inorganic materials [OH-].[Cs+] HUCVOHYBFXVBRW-UHFFFAOYSA-M 0.000 claims description 3
- 239000003610 charcoal Substances 0.000 claims description 3
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 3
- BUACSMWVFUNQET-UHFFFAOYSA-H dialuminum;trisulfate;hydrate Chemical compound O.[Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O BUACSMWVFUNQET-UHFFFAOYSA-H 0.000 claims description 3
- ZPWVASYFFYYZEW-UHFFFAOYSA-L dipotassium hydrogen phosphate Chemical compound [K+].[K+].OP([O-])([O-])=O ZPWVASYFFYYZEW-UHFFFAOYSA-L 0.000 claims description 3
- 229910000396 dipotassium phosphate Inorganic materials 0.000 claims description 3
- 235000019797 dipotassium phosphate Nutrition 0.000 claims description 3
- 235000019326 ethyl hydroxyethyl cellulose Nutrition 0.000 claims description 3
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 3
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 3
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 3
- 229920002401 polyacrylamide Polymers 0.000 claims description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- 235000011181 potassium carbonates Nutrition 0.000 claims description 3
- 239000001508 potassium citrate Substances 0.000 claims description 3
- 229960002635 potassium citrate Drugs 0.000 claims description 3
- QEEAPRPFLLJWCF-UHFFFAOYSA-K potassium citrate (anhydrous) Chemical compound [K+].[K+].[K+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O QEEAPRPFLLJWCF-UHFFFAOYSA-K 0.000 claims description 3
- 235000011082 potassium citrates Nutrition 0.000 claims description 3
- ZNNZYHKDIALBAK-UHFFFAOYSA-M potassium thiocyanate Chemical compound [K+].[S-]C#N ZNNZYHKDIALBAK-UHFFFAOYSA-M 0.000 claims description 3
- 229940116357 potassium thiocyanate Drugs 0.000 claims description 3
- 235000019423 pullulan Nutrition 0.000 claims description 3
- WPFGFHJALYCVMO-UHFFFAOYSA-L rubidium carbonate Chemical compound [Rb+].[Rb+].[O-]C([O-])=O WPFGFHJALYCVMO-UHFFFAOYSA-L 0.000 claims description 3
- 229910000026 rubidium carbonate Inorganic materials 0.000 claims description 3
- GANPIEKBSASAOC-UHFFFAOYSA-L rubidium(1+);sulfate Chemical compound [Rb+].[Rb+].[O-]S([O-])(=O)=O GANPIEKBSASAOC-UHFFFAOYSA-L 0.000 claims description 3
- QYHFIVBSNOWOCQ-UHFFFAOYSA-N selenic acid Chemical compound O[Se](O)(=O)=O QYHFIVBSNOWOCQ-UHFFFAOYSA-N 0.000 claims description 3
- HELHAJAZNSDZJO-OLXYHTOASA-L sodium L-tartrate Chemical compound [Na+].[Na+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O HELHAJAZNSDZJO-OLXYHTOASA-L 0.000 claims description 3
- 239000001509 sodium citrate Substances 0.000 claims description 3
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 claims description 3
- 239000011775 sodium fluoride Substances 0.000 claims description 3
- 235000013024 sodium fluoride Nutrition 0.000 claims description 3
- HLBBKKJFGFRGMU-UHFFFAOYSA-M sodium formate Chemical compound [Na+].[O-]C=O HLBBKKJFGFRGMU-UHFFFAOYSA-M 0.000 claims description 3
- 235000019254 sodium formate Nutrition 0.000 claims description 3
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 3
- CMZUMMUJMWNLFH-UHFFFAOYSA-N sodium metavanadate Chemical compound [Na+].[O-][V](=O)=O CMZUMMUJMWNLFH-UHFFFAOYSA-N 0.000 claims description 3
- 239000011684 sodium molybdate Substances 0.000 claims description 3
- 235000015393 sodium molybdate Nutrition 0.000 claims description 3
- TVXXNOYZHKPKGW-UHFFFAOYSA-N sodium molybdate (anhydrous) Chemical compound [Na+].[Na+].[O-][Mo]([O-])(=O)=O TVXXNOYZHKPKGW-UHFFFAOYSA-N 0.000 claims description 3
- 239000011655 sodium selenate Substances 0.000 claims description 3
- 235000018716 sodium selenate Nutrition 0.000 claims description 3
- 229960001881 sodium selenate Drugs 0.000 claims description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 3
- 235000019794 sodium silicate Nutrition 0.000 claims description 3
- 229940074404 sodium succinate Drugs 0.000 claims description 3
- ZDQYSKICYIVCPN-UHFFFAOYSA-L sodium succinate (anhydrous) Chemical compound [Na+].[Na+].[O-]C(=O)CCC([O-])=O ZDQYSKICYIVCPN-UHFFFAOYSA-L 0.000 claims description 3
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 claims description 3
- 235000010265 sodium sulphite Nutrition 0.000 claims description 3
- 239000001433 sodium tartrate Substances 0.000 claims description 3
- 229960002167 sodium tartrate Drugs 0.000 claims description 3
- 235000011004 sodium tartrates Nutrition 0.000 claims description 3
- XMVONEAAOPAGAO-UHFFFAOYSA-N sodium tungstate Chemical compound [Na+].[Na+].[O-][W]([O-])(=O)=O XMVONEAAOPAGAO-UHFFFAOYSA-N 0.000 claims description 3
- POWFTOSLLWLEBN-UHFFFAOYSA-N tetrasodium;silicate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-][Si]([O-])([O-])[O-] POWFTOSLLWLEBN-UHFFFAOYSA-N 0.000 claims description 3
- YWYZEGXAUVWDED-UHFFFAOYSA-N triammonium citrate Chemical compound [NH4+].[NH4+].[NH4+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O YWYZEGXAUVWDED-UHFFFAOYSA-N 0.000 claims description 3
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 3
- 239000011686 zinc sulphate Substances 0.000 claims description 3
- 235000009529 zinc sulphate Nutrition 0.000 claims description 3
- 229910000166 zirconium phosphate Inorganic materials 0.000 claims description 3
- 235000019422 polyvinyl alcohol Nutrition 0.000 claims description 2
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 2
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 2
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 2
- 235000011118 potassium hydroxide Nutrition 0.000 claims description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims 1
- 239000001166 ammonium sulphate Substances 0.000 claims 1
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 claims 1
- 239000004584 polyacrylic acid Substances 0.000 claims 1
- FQLQNUZHYYPPBT-UHFFFAOYSA-N potassium;azane Chemical compound N.[K+] FQLQNUZHYYPPBT-UHFFFAOYSA-N 0.000 claims 1
- 229910052979 sodium sulfide Inorganic materials 0.000 claims 1
- 239000000243 solution Substances 0.000 description 16
- 239000007787 solid Substances 0.000 description 13
- 239000003463 adsorbent Substances 0.000 description 12
- 229920006395 saturated elastomer Polymers 0.000 description 12
- 239000003245 coal Substances 0.000 description 11
- 238000005259 measurement Methods 0.000 description 9
- 239000007788 liquid Substances 0.000 description 8
- 238000000926 separation method Methods 0.000 description 8
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 4
- 238000010908 decantation Methods 0.000 description 4
- 230000008030 elimination Effects 0.000 description 4
- 238000003379 elimination reaction Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 230000001143 conditioned effect Effects 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000002608 ionic liquid Substances 0.000 description 3
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 2
- 239000008118 PEG 6000 Substances 0.000 description 2
- 229920002584 Polyethylene Glycol 6000 Polymers 0.000 description 2
- 239000001099 ammonium carbonate Substances 0.000 description 2
- 235000012501 ammonium carbonate Nutrition 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 229940093916 potassium phosphate Drugs 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 229920002545 silicone oil Polymers 0.000 description 2
- 239000001488 sodium phosphate Substances 0.000 description 2
- 229910000162 sodium phosphate Inorganic materials 0.000 description 2
- 229960003339 sodium phosphate Drugs 0.000 description 2
- 235000011008 sodium phosphates Nutrition 0.000 description 2
- UJMBCXLDXJUMFB-GLCFPVLVSA-K tartrazine Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)C1=NN(C=2C=CC(=CC=2)S([O-])(=O)=O)C(=O)C1\N=N\C1=CC=C(S([O-])(=O)=O)C=C1 UJMBCXLDXJUMFB-GLCFPVLVSA-K 0.000 description 2
- 229960000943 tartrazine Drugs 0.000 description 2
- 235000012756 tartrazine Nutrition 0.000 description 2
- 239000004149 tartrazine Substances 0.000 description 2
- RBTVSNLYYIMMKS-UHFFFAOYSA-N tert-butyl 3-aminoazetidine-1-carboxylate;hydrochloride Chemical compound Cl.CC(C)(C)OC(=O)N1CC(N)C1 RBTVSNLYYIMMKS-UHFFFAOYSA-N 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 2
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 1
- 229920002582 Polyethylene Glycol 600 Polymers 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002156 adsorbate Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical class C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 229960003975 potassium Drugs 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 229910000344 rubidium sulfate Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000000527 sonication Methods 0.000 description 1
- 239000002594 sorbent Substances 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/08—Selective adsorption, e.g. chromatography
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
- B01J20/28004—Sorbent size or size distribution, e.g. particle size
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F6/00—Post-polymerisation treatments
- C08F6/06—Treatment of polymer solutions
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
Definitions
- the present invention relates to a method for purifying a viscous mixture containing one or more contaminants.
- the invention relates to a method for purifying an aqueous polymer phase.
- aqueous polymer solutions are used as sorbents in purification processes as shown in WO 2008/127602, US 7,147,692, US 6,811,703 or US 5,641,847. It may be advantageous to wash these solutions by removing impurities for reuse, as in WO 2008/127602.
- Activated carbons are commonly used for the purification of liquid mixtures through different processes (fixed bed filtration of coal, mixing of the coal with the liquid mixture followed by filtration ). Their use is a means well known to those skilled in the art for being simple, ecological and cheap.
- the object of the present invention is to provide a method that is simple, effective and environmentally friendly for the removal of one or more contaminants from a viscous mixture.
- the present invention relates to the use of activated carbon for carrying out a process for purifying an initial viscous mixture containing at least one substance responsible for the viscosity thereof and at least one contaminant, said activated carbon being in the form of particles with a mean diameter D [3, 2] of about 5 ⁇ to about 200 ⁇ , particularly from about 10 ⁇ to about 80 ⁇ , particularly from about 40 ⁇ to about 50 ⁇ .
- activated carbon an amorphous solid consisting essentially of carbonaceous material which has a large specific surface area (between 400 and 2500 m 2 / g) and which is hydrophobic.
- Average diameter D [3, 2] means the diameter that all the particles of a sample of perfectly isometric hard particles would have and which would develop a surface identical to that of the sample considered (with identical mass of particles ).
- the average diameter D [3, 2] is also called “average surface diameter” or “Sauter diameter”.
- “Initial viscous mixture” means a fluid or a mixture of fluids having a viscosity greater than about 0.1 mPa.s. This viscosity is considered at ambient temperature, at ambient pressure and at a shear rate of between 1 and 100 s -1 , during a flow measurement (cone-plane rheometer diameter 40 mm for the cone, temperature 20 ° C., shear rate varying between 10 and 1000 s "1 ).
- the present invention also relates to the use of activated carbon for the implementation of a process for purifying an initial viscous mixture containing at least one substance responsible for the viscosity of the latter, and at least one contaminant, said activated carbon being in the form of particles with a mean diameter D [3, 2] of about 5 ⁇ to about 200 ⁇ , particularly from about 10 ⁇ to about 80 ⁇ , particularly about 40 ⁇ at approximately 50 ⁇ and being arranged in a fixed bed through which said mixture flows, said purification process being preceded by a preliminary step of conditioning the activated carbon.
- fixed bed is meant a device containing immobile particles on which flows said initial viscous mixture.
- Said fixed bed has a porosity of between 30 and 50%, preferably between 35 and
- porosity is meant the ratio between the volume of the interstitial space left free between the immobile particles of the fixed bed and the total volume of said fixed bed.
- the particles, previously packaged, are arranged and packed, for example mechanically, to form said fixed bed.
- the fixed bed consists of a cartridge having a hollow cylindrical space in which the particles, previously packaged, are arranged and tamped mechanically.
- a filter cloth or a pierced plate can be inserted on either side of the fixed bed to prevent any entrainment by the moving fluid.
- the substance (or substances) responsible for the viscosity of the initial viscous mixture such as a polymer for example
- Active sites means areas of the surface of the coal particles whose local structure is such that it allows the establishment of (more or less strong) interactions with the contaminant molecules, which leads to the adsorption of these molecules.
- Active sites capable of adsorbing the substance (or substances) responsible for the viscosity of the initial viscous mixture means areas of the surface of the coal particles whose local structure is such as to allow the establishment of interactions (more or less strong) with the molecules of the substance responsible for the viscosity of the initial viscous mixture, which leads to their adsorption.
- the "active sites” and “active sites capable of adsorbing the substance (or substances) responsible for the viscosity of the initial viscous mixture” may be identical or different depending on the situation.
- the present invention also relates to the use of activated carbon for the implementation of a process for purifying an initial viscous mixture as defined above, in which the sites of the active carbon capable of adsorbing the (or ) substance (s) responsible for the viscosity of the initial viscous mixture are completely or partially saturated before the start of the purification process.
- totally or partially saturated is meant the situation of activated carbon after a treatment called conditioning that has allowed the adsorption of molecules on a greater or lesser proportion of accessible active sites in a given amount of activated carbon.
- the beginning of the process means contacting the initial viscous mixture containing at least one contaminant with the activated carbon.
- a selectivity of the activated carbon is induced by the adsorption of a saturation mixture thereon since the activated carbon no longer removes the substance (s) responsible for the viscosity of the initial viscous mixture. but it still removes the contaminant.
- the present invention also relates to the use of activated carbon for the implementation of a process for purifying an initial viscous mixture as defined above, in which the sites of the active carbon capable of adsorbing the substance (s) (s) responsible (s) of the viscosity of the initial viscous mixture are saturated totally or partially by the (or) substance (s) responsible for the viscosity of the initial viscous mixture before the start of the purification process.
- the active carbon When the active carbon is saturated with a saturation mixture which is not the substance responsible for the viscosity of the initial viscous mixture, it is advantageous that by competition on the activated carbon sites, the carbon adsorbs the substance responsible for the viscosity of the initial viscous mixture and releases an element of the saturation mixture, thus polluting the filtered viscous mixture. In order to guard against this risk, it is possible to use a saturation mixture comprising the same substance as the substance responsible for the viscosity of the initial viscous mixture.
- the mixture in a particular embodiment may be monophasic, two-phase or three-phase.
- said mixture When said mixture is monophasic, it may then consist of a polymeric aqueous phase.
- the mixture When the mixture is three-phase it may consist of a salt phase and two aqueous polymer phases.
- the viscosity is always conferred by at least one of the aqueous polymer phases.
- aqueous polymer phase denotes an aqueous phase containing polymers in solution.
- contaminant is meant a chemical component that is to be extracted from the initial viscous mixture.
- the treatment also called conditioning
- the activated carbon from one to all phases constituting the initial viscous mixture.
- a separation step decantation for example
- the invention also relates to the use of activated carbon for the implementation of a process for purifying an initial viscous mixture as defined above, said purification process being carried out by placing in contact with said initial viscous mixture, or at least one of the monophasic viscous mixtures contained in said initial viscous mixture, with said activated carbon, wherein the initial viscous mixture, or said monophasic viscous mixture, contains at least one contaminant, and said activated carbon being in the form of particles with an average diameter D [3, 2] of about 5 ⁇ to about 200 ⁇ , particularly from about 10 ⁇ to about 80 ⁇ , particularly from about 40 ⁇ to about 50 ⁇ .
- At least one of the viscosity conferring phases is brought into contact with the activated carbon in the process of the invention.
- the contacting of the active carbon according to the invention does not take place with a saline phase alone, or with an aqueous phase which does not have the viscosity as described above, or with a mixture of two phases that does not have the viscosity previously described.
- the initial viscous mixture comprises a phase or two phases, which may be a polymeric aqueous phase and a salt phase, it is possible to operate the method of the invention in different ways.
- the invention also relates to the use of activated carbon for the implementation of a process for purifying an initial viscous mixture as defined above, said purification process being carried out by placing in contact said initial viscous mixture, or at least one of the monophasic viscous mixtures contained in said initial viscous mixture, with said activated carbon, wherein the initial viscous mixture, or said monophasic viscous mixture, contains at least one contaminant, and said activated carbon being in the form of particles with an average diameter D [3, 2] of about 5 ⁇ to about 200 ⁇ , particularly from about 10 ⁇ to about 80 ⁇ , particularly from about 40 ⁇ to about 50 ⁇ and being disposed in a fixed bed, said purification process being preceded by a preliminary stage of conditioning the activated carbon whose active sites are free by contacting said activated carbon and a saturation mixture in order to saturate all or part of the active carbon sites capable of adsorbing the substance or substances responsible for the viscosity, said saturation mixture preferably
- the present invention relates to the use of activated carbon for carrying out a process for purifying an initial viscous mixture as defined above, said initial viscous mixture consisting of:
- At least one monophasic viscous mixture said monophasic viscous mixture being a polymeric aqueous phase, and said aqueous polymer phase containing at least one polymer and possibly at least one contaminant, and optionally an aqueous salt phase, said aqueous salt phase containing at least one salt and possibly at least one contaminant,
- the present invention relates to the use of activated carbon for the implementation of a process for purifying an initial viscous mixture as defined above, in which the activated active sites of activated carbon can be used. adsorbing the polymer are totally or partially saturated with said polymer before the start of the purification process.
- the polymer in order to avoid the pollution of the viscous mixture purified by elements of the saturation mixture adsorbed on active carbon sites capable of adsorbing the polymer, (the polymer can replace said elements on said sites), it can be it is advantageous to saturate the said sites with the said polymer before the purification step.
- that of the initial viscous mixture can range from about 0.1 mPa.s to about 200 mPa.s.
- This viscosity is considered at ambient temperature, at ambient pressure and at a shear rate of between 1 and 100 s -1 , during a flow measurement.
- the active carbon as defined above is used in the implementation of a purification process in which the initial viscous mixture has a viscosity of about 0.1 mPa.s at about 200 mPa.s, particularly from about 1 mPa.s to about 150 mPa.s, particularly from about 1 mPa.s to about 80 mPa.s.
- Viscosity values are considered at room temperature, at ambient pressure and at a shear rate between 1 and 100 sec -1 , during flow measurement.
- the viscosity of at least one aqueous polymer phase may be between about 0.1 mPa.s and about 200 mPa .s.
- the use of activated carbon as defined above is used in the implementation of a purification process in which the monophasic viscous mixtures, or aqueous polymer phases, have a viscosity of from about 20 mPa.s to about 200 mPa.s, particularly from about 35 mPa.s to about 150 mPa.s, particularly from about 50 mPa.s to about 80 mPa.s.
- Viscosity values are considered at room temperature, at ambient pressure and at a shear rate between 1 and 100 sec -1 , during flow measurement.
- the viscosity thereof may be from about 0.1 mPa.s to about 20 mPa.s.
- the active carbon as defined above is used in the implementation of a purification process in which the saline aqueous phase has a viscosity of about 0.1 mPa.s. at about 20 mPa.s, particularly from about 1 mPa.s to about 10 mPa.s, particularly from about 1 mPa.s to about 3 mPa.s.
- This viscosity is considered at ambient temperature, at ambient pressure and at a shear rate of between 1 and 100 s -1 , during a flow measurement.
- the invention is more particularly intended to purify certain types of viscous mixtures, especially the initial monophasic viscous mixtures.
- the active carbon as defined above is used in the implementation of a purification process in which the initial viscous mixture is a monophasic viscous mixture, which is a polymeric aqueous phase.
- the invention is more particularly intended to purify certain types of viscous mixtures, in particular two-phase initial viscous mixtures composed of a polymeric aqueous phase and a saline phase.
- the active carbon as defined above is used in the implementation of a purification process in which the initial viscous mixture is constituted a monophasic viscous mixture, which is a polymeric aqueous phase, and
- the object of the invention is to purify an initial viscous mixture, that is to say in the case of the two-phase viscous mixture defined above to remove one or more contaminants.
- the contaminant may be:
- the active carbon as defined above is used in the implementation of a purification process in which the monophasic viscous mixture contains at least one contaminant.
- the contaminant may be in the aqueous polymer phase and the salt phase.
- the active carbon as defined above is used in the implementation of a purification process in which the saline aqueous phase contains at least one contaminant, and the monophasic viscous mixture contains at least one less a contaminant.
- the contaminant may also be found only in the saline phase.
- the active carbon as defined above is used in the implementation of a purification process in which the saline aqueous phase contains at least one contaminant.
- the activated carbon is brought into contact with the initial viscous mixture, that is to say with the mixture consisting of the salt phase and the aqueous polymer phase.
- the saline phase can not be put alone in contact with the active carbon, but must be brought into contact with the activated carbon in the presence of the aqueous polymer phase.
- the active carbon as defined above is used in the implementation of a purification process in which the initial viscous mixture is two-phase, and consists of two monophasic viscous mixtures.
- the purification of this mixture is to eliminate one or more contaminants contained in one of the phases.
- the active carbon as defined above is used in the implementation of a purification process in which one of the two monophasic viscous mixtures contains at least one contaminant.
- the purification of this mixture is to eliminate one or more contaminants contained in the two phases.
- the active carbon as defined above is used in the implementation of a purification process in which the two monophasic viscous mixtures each contain at least one contaminant.
- one or two polymeric aqueous phases are part of the initial viscous mixture.
- the polymers listed below are the most commonly used.
- the active carbon as defined above is used in the implementation of a purification process in which the polymer is selected from water-soluble polymers including dextran, polyvinyl alcohol poly (vinylpyrrolidone), pullulan, Ficoll, poly (acrylamide), poly (acrylic acid), carboxymethyldextran, hydroxypropyldextran, ethylhydroxyethylcellulose, etc.) and particularly polyethylene glycol (PEG) and polymers having a number average molecular weight of from 400 to 100,000 g / mol.
- water-soluble polymers including dextran, polyvinyl alcohol poly (vinylpyrrolidone), pullulan, Ficoll, poly (acrylamide), poly (acrylic acid), carboxymethyldextran, hydroxypropyldextran, ethylhydroxyethylcellulose, etc.
- PEG polyethylene glycol
- water-soluble polymer is meant a polymer having a solubility in water greater than or equal to 1 g / L at room temperature.
- a saline phase is part of the initial viscous mixture.
- the active carbon as defined above is used in the implementation of a purification process in which the salt is chosen from, in particular, sodium sulphate, sodium carbonate, potassium carbonate, potassium citrate, potassium phosphate, sodium hydroxide, potassium hydroxide, rubidium hydroxide, cesium hydroxide, sodium fluoride , sodium formate, potassium thiocyanate, sodium carbonate, potassium carbonate, ammonium carbonate, rubidium carbonate, cesium carbonate, lithium sulfate, sodium sulfate, rubidium sulfate, cesium sulfate, magnesium sulfate, aluminum sulphate, iron sulphate, copper sulphate, zinc sulphate, alum, sodium selenate, sodium chromate, sodium molybdate, sodium tungstate, potassium hydrogen phosphate, sodium sulphite, sodium silicate, sodium sulphide , sodium succinate, sodium tartrate, sodium phosphate, potassium phosphate
- the contaminant may be a low-polar organic solute, including a dye, a pesticide, a pharmaceutical compound, an alkaloid, a protein, a toxin, and more generally any organic compound having a higher octanol / water partition coefficient at 1 and especially methylene blue.
- the solute has a partition coefficient of less than 1, it can not be extracted by the polymer phase sufficiently efficiently.
- low polar organic solute any organic compound having an octanol / water partition coefficient greater than 1.
- the contaminant may be a polar or apolar aqueous solute, especially a dye, a pesticide, a pharmaceutical compound, an alkaloid, a protein, a toxin, and especially methylene blue.
- viscous phases containing a polymeric aqueous phase can be treated by the process of the invention, certain concentrations of polymers in the aqueous phase are more particularly used.
- the active carbon as defined above is used in the implementation of a purification process in which the concentration of polymer in at least one monophasic viscous mixture is about 10 g / L at about 1000 g / L, particularly from about 50 g / L to about 800 g
- g / L particularly from about 200 g / L to about 600 g / L. Below 10 g / L, it is not possible to obtain a two-phase system. 1000 g / L is a very high value which represents the upper limit of the concentrations usually encountered.
- the active carbon as defined above is used in the implementation of a purification process in which the concentration of polymer in the aqueous salt phase is about 0 g / l to about 100 g / L, particularly from about 0 g / L to about 50 g / L, particularly from about 0 g / L to about 10 g / L.
- the active carbon as defined above is used in the implementation of a purification process in which the concentration of the salt in at least one monophasic viscous mixture is about 1 g / L at about 200 g / l especially from about 5 g / l to about 100 g / l, particularly from about 10 g / l to about 50 g / l.
- the active carbon as defined above is used in the implementation of a purification process in which the concentration of salt in the aqueous salt phase is about 10 g / l to about 800 g / L, particularly from about 20 g / L to about 600 g / L, particularly from about 50 g / L to about 400 g / L.
- the activated carbon as defined above is used in the implementation of a purification process in which the concentration of the contaminant in at least one monophasic viscous mixture is about 0.001 g / L at about 10 g / L especially from about 0.01 g / L to about 1 g / L, particularly from about 0.05 g / L to about 0.2 g / L.
- the activated carbon as defined above is used in the implementation of a purification process in which the concentration of the contaminant in the saline aqueous phase is about 0.0001 g / L at about 10 g / L, particularly from about 0.004 g / L to about 0.05 g / L, particularly from about 0.002 g / L to about 0.01 g / L.
- the active carbon as defined above is used in the implementation of a purification process in which the active carbon is contained in a solid support, in particular a solid support in the form of a fixed bed, especially a filter cartridge.
- the active carbon as defined above is used in the implementation of a purification process in which at least one of the monophasic viscous mixtures has a density of about 1000 kg.m- 3 to about 1600 kg.m- 3 , particularly from about 1000 kg.m- 3 to about 1400 kg.m- 3 , particularly from about 1000 kg.m- 3 to about 1200 kg- 3 .
- the active carbon as defined above is used in the implementation of a purification process in which the aqueous salt phase has a density of about 1000 kg.m- 3 to about 1600 kg m.sup.- 3 , particularly from about 1000 kg.m- 3 to about 1400 kg.m- 3 , particularly from about 1000 kg.m- 3 to about 1200 kg.m- 3 .
- the active carbon as defined above is used in the implementation of a purification process in which the ratio between the mass of activated carbon and the initial volume of viscous mixture to be purified is about 0.01 g / L to about 10 g / L, particularly about 0.02 g / L to about 5 g / L, particularly about 0.1 g / L to about 1 g / L.
- the active carbon as defined above is used in the implementation of a purification process in which the ratio between the mass of activated carbon and the volume of monophasic viscous mixture to be purified is about 0.01 g / L to about 10 g / L, particularly about 0.02 g / L to about 5 g / L, particularly about 0.1 g / L to about 1 g / L.
- An important aspect of the invention is the fact that the purification method of the invention does not require a heating step, either before or during the use of the activated carbon, which is of great practical and economical interest. .
- the active carbon as defined above is used in the implementation of a purification process having no heating step of said initial viscous mixture.
- the active carbon as defined above is used in the implementation of a purification process in which the temperature of the initial viscous mixture during the process is approximately 0 ° C. at about 40 ° C, particularly from about 10 ° C to about 35 ° C, particularly from about 20 ° C to about 35 ° C, particularly from about 20 ° C to about 25 ° C.
- the present invention also relates to a process for purifying an initial viscous mixture or at least one monophasic viscous mixture constituting said initial viscous mixture, containing at least one substance responsible for the viscosity thereof and at least one contaminant, comprising a step of filtering the initial viscous mixture, or at least one of the monophasic viscous mixtures, onto activated charcoal, in wherein the activated carbon is in the form of particles with a mean diameter D [3, 2] of about 5 ⁇ to about 200 ⁇ , particularly from about 10 ⁇ to about 80 ⁇ , particularly from about 40 ⁇ to about 50 ⁇ , to obtain a purified initial viscous mixture, or at least one purified monophasic viscous mixture, substantially free of at least one contaminant.
- the substance (or substances) responsible for the viscosity of the initial viscous mixture such as a polymer for example
- the invention also relates to a process for purifying an initial viscous mixture as defined above, in which the sites of the active carbon capable of absorbing the substance (s) responsible (s) ) of the viscosity of the initial viscous mixture are completely or partially saturated before the start of the purification process.
- the invention also relates to a process for purifying an initial viscous mixture as defined above, in which the sites of the active carbon capable of absorbing the substance (s) responsible (s) ) the viscosity of the initial viscous mixture are totally or partially saturated by the substance (s) responsible for the viscosity of the initial viscous mixture before the start of the purification process.
- the activated carbon When the activated carbon is saturated with a saturation mixture which is not the substance responsible for the viscosity of the initial viscous mixture, it is possible that by At the active coal sites, the coal adsorbs the substance responsible for the viscosity of the initial viscous mixture and releases an element of the saturation mixture, thereby polluting the filtered viscous mixture. In order to guard against this risk, it is advantageous to use a saturation mixture which contains the same substance as the substance responsible for the viscosity of the initial viscous mixture.
- the present invention further relates to a process for purifying an initial viscous mixture containing at least one substance responsible for the viscosity thereof and at least one contaminant comprising a step of filtering the initial viscous mixture onto activated carbon, in wherein the activated carbon is in the form of particles with a mean diameter D [3, 2] of about 5 ⁇ to about 200 ⁇ , particularly from about 10 ⁇ to about 80 ⁇ , particularly from about 40 ⁇ to about 50 ⁇ , to obtain a purified initial viscous mixture substantially free of at least one contaminant.
- the invention also relates to a process for purifying an initial viscous mixture as defined above, in which the sites of the active carbon capable of adsorbing the substance (s) responsible (s) ) of the viscosity of the initial viscous mixture are completely or partially saturated before the start of the purification process.
- the invention also relates to a process for purifying an initial viscous mixture as defined above, in which the sites of the active carbon capable of adsorbing the substance (s) responsible (s) ) the viscosity of the initial viscous mixture are totally or partially saturated by the substance (s) responsible for the viscosity of the initial viscous mixture before the start of the purification process.
- the active carbon may be advantageous to treat the active carbon before the start of the purification process to prevent it from adsorbing the substance (or substances) responsible for the viscosity of the initial viscous mixture during purification.
- the invention also relates to a process for purifying an initial viscous mixture as defined above comprising a preliminary step of pretreatment of the activated carbon whose active sites are free by contacting said activated carbon and d a saturation mixture for the purpose of totally or partially saturating the active carbon sites capable of adsorbing the substance or substances responsible for the viscosity, said saturation mixture preferably containing the substance or substances responsible for the viscosity of the initial viscous mixture.
- the initial viscous mixture is composed of several phases
- the invention makes it possible to filter either the initial viscous mixture or one or more component phases.
- the viscosity-conferring phases will have to be treated by the invention. That is, the salt phase, or a polymer phase that does not have a viscosity as described above, or a mixture of these two phases can not be treated alone by the invention.
- the present invention also relates to a process for the purification of an initial viscous mixture or of at least one viscous single-phase mixture constituting said initial viscous mixture, containing at least one substance responsible for the viscosity thereof and at least one contaminant, comprising a step of filtering the initial viscous mixture, or at least one of the monophasic viscous mixtures, onto activated carbon, wherein the activated carbon is in the form of particles of average diameter D [ 3, 2] from about 5 ⁇ to about 200 ⁇ , particularly from about 10 ⁇ to about 80 ⁇ , particularly from about 40 ⁇ to about 50 ⁇ , and is disposed in a fixed bed on which said viscous mixture flows.
- a purified initial viscous mixture, or at least one purified monophasic viscous mixture, substantially free of at least one contaminant said purification being preceded by a preliminary stage of conditioning the activated carbon.
- the invention also relates to a method for purifying an initial viscous mixture as defined above, wherein said initial viscous mixture consists of:
- said monophasic viscous mixture being an aqueous polymer phase containing at least one polymer and possibly at least one contaminant
- an aqueous salt phase containing at least one salt and possibly at least one contaminant
- said purified initial viscous mixture consists of:
- said purified monophasic viscous mixture being a purified aqueous polymer phase containing at least one polymer and containing no more of said contaminant
- a purified saline aqueous phase containing at least one salt and no longer containing any of said contaminant optionally, a purified saline aqueous phase containing at least one salt and no longer containing any of said contaminant.
- the invention also relates to a process for purifying an initial viscous mixture as defined above, in which active active carbon sites capable of adsorbing the polymer are totally or partially saturated with said polymer beforehand. the beginning of the purification process.
- Said purified initial viscous mixture contains at least one purified monophasic viscous mixture (a purified aqueous polymeric phase), if the initial viscous mixture does not contain an aqueous saline phase.
- Said purified initial viscous mixture contains at least one purified monophasic viscous mixture (purified aqueous polymer phase), and a purified saline aqueous phase if the initial viscous mixture contains at least one monophasic viscous mixture (aqueous polymer phase), and an aqueous saline phase.
- the process for purifying an initial viscous mixture on activated carbon as defined above may be preceded by a preliminary pretreatment step (also called conditioning) of activated carbon whose active sites are free by contacting said activated carbon and a saturation mixture in order to saturate all or part of the active carbon sites capable of adsorbing the substance or substances responsible for the viscosity, said saturation mixture preferably containing the substance or substances substances responsible for the viscosity of the initial viscous mixture, and may include:
- said initial viscous mixture may consist of:
- At least one monophasic viscous mixture (aqueous polymer phase)
- said saturation mixture comprising the polymer of the aqueous polymer phase, and comprising:
- the process for purifying an initial viscous mixture as defined above applies to an initial viscous mixture consisting of:
- the said process for purifying an initial viscous mixture also applies in the case of a monophasic viscous mixture (aqueous polymer phase) and an aqueous salt phase, where the contaminant is present in the aqueous polymer phase.
- the said process for purifying an initial viscous mixture is also applicable in the case of a monophasic viscous mixture (aqueous polymer phase) and an aqueous saline phase, where the contaminant is present in the saline phase.
- the saline aqueous phase contains at least one contaminant
- the monophasic viscous mixture aqueous polymer phase
- the said purification process may also be used when the said initial viscous mixture consists of:
- the present invention also relates to a process for purifying an initial viscous mixture as defined above, wherein said initial viscous mixture consists of:
- said purified initial viscous mixture consists of:
- said purification process is preceded by a preliminary pretreatment step (also called conditioning) of the activated carbon whose active sites are free by contacting said active carbon and a mixture saturating device for the purpose of totally or partially saturating the active carbon sites capable of adsorbing the substance or substances responsible for the viscosity, said saturation mixture comprising at least one polymer of at least one aqueous polymer phase, and comprises:
- the initial viscous mixture consists of:
- the monophasic viscous mixture contains at least one contaminant
- the purification process is preceded by a preliminary step of pretreatment of the activated carbon whose active sites are free by contacting said active carbon and a saturation mixture in order to saturate totally or partially the activated carbon sites susceptible adsorbing the substance or substances responsible for the viscosity, said saturation mixture comprising the polymer of the aqueous polymer phase, and and the purification method comprises:
- a filtration step enabling at least one contaminant to be removed from the monophasic viscous mixture, in order to obtain a purified monophasic viscous mixture, and a recovery step making it possible to isolate said purified monophasic viscous mixture.
- the initial viscous mixture consists of two monophasic viscous mixtures, or two aqueous polymer phases, provided that at least one or both monophasic viscous mixtures contain at least one contaminant
- the purification process is preceded by a preliminary step of pretreatment of the activated carbon whose active sites are free by contacting said activated carbon and a saturation mixture in order to saturate totally or partially the active carbon sites capable of adsorbing the substance or the substances responsible for the viscosity, said saturation mixture comprising at least one polymer of at least one aqueous polymer phase, and said method comprises:
- At least one separation step in order to isolate the two viscous mixtures monophasic from each other and,
- At least one recovery step in order to isolate said purified monophasic viscous mixtures.
- Said purification process is especially used when the initial viscous mixture has a viscosity of from about 0.1 mPa.s to about 200 mPa.s, particularly from about 1 mPa.s to about 150 mPa.s, particularly from about 1 mPa.s to about 80 mPa.s.
- This viscosity is considered at ambient temperature, at ambient pressure and at a shear rate of between 1 and 100 s -1 , during a flow measurement.
- the said purification process is also used when at least one single-phase viscous mixture constituting the initial viscous mixture has a viscosity of from about 20 mPa.s to about 200 mPa.s, particularly from about 35 mPa.s to about 150 mPa.s. .s, particularly from about 50 mPa.s to about 80 mPa.s.
- This viscosity is considered at ambient temperature, at ambient pressure and at a shear rate of between 1 and 100 s -1 , during a flow measurement.
- the said purification process may be further used when the aqueous salt phase has a viscosity of from about 0.1 mPa.s to about 20 mPa.s, particularly from about 1 mPa.s to about 10 mPa.s. particularly from about 1 mPa.s to about 3 mPa.s.
- This viscosity is considered at ambient temperature, at ambient pressure and at a shear rate of between 1 and 100 s -1 , during a flow measurement.
- a polymeric aqueous phase is part of the initial viscous mixture.
- the polymers that may be present in the aqueous polymer phase some are preferred.
- the polymer contained in the monophasic viscous mixture is chosen from water-soluble polymers, in particular dextran, polyvinyl alcohol, polyvinylpyrrolidone, pullulan and Ficoll.
- a saline phase is part of the initial viscous mixture.
- the salt contained in the aqueous salt phase is chosen from among others: sodium sulphate, sodium carbonate, potassium carbonate, potassium citrate, potassium phosphate, sodium hydroxide, hydroxide of potassium, rubidium hydroxide, cesium hydroxide, sodium fluoride, sodium formate, potassium thiocyanate, sodium carbonate, potassium carbonate, ammonium carbonate, rubidium carbonate, cesium carbonate, lithium sulfate, sodium sulfate sodium, rubidium sulphate, cesium sulphate, magnesium sulphate, aluminum sulphate, iron sulphate, copper sulphate, zinc sulphate, alum, sodium selenate, sodium chromate, sodium molybdate, sodium tungstate, potassium hydrogen phosphate, sodium sulphate
- the contaminant is a low-polar organic solute, especially a dye, a pesticide, a pharmaceutical compound, an alkaloid, a protein, a toxin, and more generally any organic compound having an octanol / water partition coefficient. greater than 1 and especially methylene blue.
- the concentration of polymer in at least one of the monophasic viscous mixtures (aqueous polymer phases) is from about 10 g / L to about 1000 g / L, particularly from about 50 g / L to about 800 g / L, particularly from about 200 g / L to about 600 g / L.
- the concentration of the polymer in the aqueous salt phase is from about 0 g / L to about 100 g / L, particularly from about 0 g / L to about 50 g / L, particularly about 0 g / L to about 10 g / L.
- This process is also particularly when the concentration of the salt in at least one of the monophasic viscous mixtures (one of the aqueous polymer phases) is from about 1 g / l to about 200 g / l, particularly from about 5 g / l to about 100 g / L, particularly about 10 g / L to about 50 g / L;
- the salt concentration in the aqueous salt phase is from about 10 g / l to about 800 g / l, particularly from about 20 g / l to about 600 g / l, particularly about 50 g / l. L at about 400 g / L;
- the concentration of the contaminant in at least one of the monophasic viscous mixtures (aqueous polymer phases) is from about 0.001 g / l to about 10 g / l, particularly from about 0.01 g / l to about 1 g L, particularly from about 0.05 g / L to about 0.2 g / L;
- concentration of the contaminant in the aqueous salt phase is from about 0.0001 g / L to about 10 g / L, particularly from about 0.0004 g / L to about 0.05 g / L L, particularly from about 0.002 g / L to about 0.01 g / L.
- the active carbon is contained in a solid support, in particular a solid support in the form of a fixed bed, in particular a filtration cartridge.
- said activated carbon is arranged in a fixed bed in a filtration cartridge.
- the pressure applied to the initial viscous mixture at the inlet of the filter cartridge is from about 1 to about 10 bar, particularly from about 1 to about 5 bar, particularly about 1, 5 to about 3 bars.
- one of the monophasic viscous mixtures has a density of about 1000 kg.m- 3 to about 1600 kg.m- 3 , particularly from about 1000 kg.m- 3 to about 1400. kg.m- 3 , especially from about 1000 kg.m- 3 to about 1200 kg.m- 3 , but also when the aqueous salt phase has a density of about 1000 kg.m- 3 to about 1600 kg.m "3 , especially about 1000 kg.m- 3 to about 1400 kg.m- 3 , particularly from about 1000 kg.m- 3 to about 1200 kg.m- 3 .
- the ratio of the mass of activated carbon to the initial viscous mixture volume to be purified is from about 0.01 g / L to about 10 g / L, particularly about 0.02 g / L. L at about 5 g / L, particularly from about 0.1 g / L to about 1 g / L, and the ratio of activated carbon mass to the volume of viscous monophasic mixture to be purified is about 0.01 g / L at about 10 g / L, particularly about 0.02 g / L to about 5 g / L, particularly about 0.1 g / L to about 1 g / L.
- this method does not include a heating step of said initial viscous mixture, which is an advantage in terms of simplicity of handling and energy saving
- the temperature of the initial viscous mixture during the process is from about 0 ° C to about 40 ° C, particularly from about 10 ° C to about 35 ° C, particularly about 20 ° C to about 35 ° C, particularly about 20 ° C to about 25 ° C.
- FIG. 1 represents the example of a pulverulent coal-based adsorption kinetics experiment, of an aqueous solution of PEG 600 on carbon Norit CGI.
- the x-axis represents time, while the y-axis represents the z-ratio:
- Figure 1 shows the result of 3 identical experiments.
- the points of the first are represented by black diamonds, those of the second by gray squares and those of the third by black triangles.
- Figure 2 shows the adsorption isotherm determined with the two pulverulent coals in the area of interest of the study, ie Norit CASPF and Norit CGI.
- the axis of the abscissae represents the time, while the axis of the ordinates represents the ratio z:
- Example 1 Activated carbon saturation
- a preconditioning of the activated carbon is necessary and consists of bringing the activated carbon into contact with the aqueous polymer phase for 12 hours at room temperature before use in the cartridge.
- This pre-conditioning makes it possible to saturate the active carbon with polymer, but it has been shown that its adsorption capacity of the pollutant is intact. Since the sites which can adsorb the polymer are saturated by preconditioning, when the cartridge is used for the purification of the initial viscous mixture, the filtered aqueous polymer phase contains a polymer concentration identical to that of the initial viscous mixture.
- Example 2 Making a fixed bed
- the realization of the fixed bed consists of depositing a defined quantity of activated carbon particles, previously packaged, inside a cylindrical container having at its base a pierced plate or a filter cloth (felt type).
- the particles are mechanically packed after filling, to avoid the presence of dead volumes in the bed (which would lead to short circuits).
- a second pierced plate or a layer of filter cloth is then deposited at the top of the particle bed and the assembly is held at constant volume by a screw clamping device.
- Mechanical compression performed by moderate clamping and / or the use of ultrasound (so-called sonication operation) can be used to compact the bed of particles.
- Example 3 separation process followed by regeneration on a cartridge of the extractant phase with a two-phase system comprising two aqueous polymer phases.
- the contaminant is methylene blue in dextran.
- the studied system consists of two phases:
- aqueous phase 1 is brought into contact with the aqueous phase 2.
- the methylene blue is then extracted from the aqueous phase 1.
- the two phases are separated by decantation.
- the aqueous phase 2 contaminated with methylene blue, is regenerated by adsorption in a cartridge containing Norit activated carbon CASPF.
- Example 4 separation process involving the transfer of a solute from one phase to another and its selective adsorption on a solid support.
- the contaminant is methylene blue.
- the studied system consists of a mixture of two phases:
- the aqueous phase 2 containing poly (ethylene glycol) and ammonium sulfate is treated by passing through a fixed bed of Norit activated carbon CASPF contained in a cartridge.
- the mixture is separated by decantation.
- the ability to adsorb the various constituents of a mixture is the most important factor in determining the performance of an adsorption process. It is therefore essential to know the partition of the solute considered between the adsorbent and the adsorbate (in the form of an equilibrium relationship) to size the process.
- the curves that Most often characterize an adsorbent material are the adsorption isotherms. These give the adsorbed quantity of a constituent per unit mass of adsorbent as a function of the specific weight of this constituent in the fluid. For low levels, the amount of solute adsorbed on the solid is proportional to the solute content of the liquid phase. For high levels of solute there is a plateau of adsorbent, reflecting the saturation of the solid solute.
- tests are generally carried out in a stirred batch reactor.
- a known quantity of new adsorbent is placed in a beaker in the presence of a solution containing the component to be adsorbed at a known concentration.
- the mixture is stirred. Once equilibrium is reached, the phases are separated and a material balance makes it possible to determine a point of the isotherm (xf; zf):
- the aqueous polymer phase is a phase containing 433.7 g / l of PEG 6000.
- PEG 6000 is meant a poly (ethylene glycol) with a narrow molecular weight distribution and a weight average molecular weight of 6000 g / mol.
- narrow molecular weight distribution polymers having a molar mass distribution with a polymolecularity index of less than or equal to 2 and more particularly less than 1.1.
- Polymolecularity index means the ratio of the mass average molar mass to the number average molar mass, these values being based on the molar mass distribution of the polymer sample in question.
- the pollutant is methylene blue.
- the repetition of the closed reactor measurements with different concentrations makes it possible to obtain the adsorption isotherm.
- the concentrations of methylene blue are measured by UV-visible spectroscopy.
- Examples 1, 2, 3 and 4 made it possible to illustrate the implementation of the invention through different processes and different initial viscous mixtures by the nature of the phases and the location of the contaminant.
- Example 5 made it possible to demonstrate that only activated carbons according to the invention are effective for the purpose of removing the contaminant from the viscous mixture to be treated.
- Example 6 Removal of compounds from a viscous aqueous mixture
- a complex mixture (1% of blue patent V, 1% of tartrazine and 1% of citric acid) of green color is dissolved in a proportion of 1% by weight in a viscous aqueous solution containing about 10% by weight of glycerol, corresponding to a viscosity of about 60 mPa.s.
- the mixture is pumped and passes through the filter cartridge previously described, filled with activated carbon previously conditioned by contact with a 10% aqueous solution of glycerol under a pressure of about 3 bar at a liquid flow rate of about 0.3 ml. min "1 over a period of approximately 120 hours.
- the mixture recovered at the cartridge outlet is discolored, reflecting the elimination of origin to compounds of the coloring of the solution.
- Methylene blue is dissolved in a low viscosity silicone oil (typically 70 mPa.s) at a rate of about 30 mg.L -1 .
- the mixture is pumped and passes through the filter cartridge previously described, filled with activated carbon previously conditioned. by contact with the silicone oil under a pressure of about 3 bar at a liquid flow rate of about 0.3 ml.min -1 for a period of about 120 hours.
- the mixture recovered at the outlet of the cartridge is discolored, thus indicating the elimination of methylene blue from the solution.
- a complex mixture (1% of blue patent V, 1% of tartrazine and 1% of citric acid) of green color, is dissolved in an ionic liquid (Emim / Tf2N) at a rate of about 0.1% in mass.
- the mixture is pumped and passes through the filter cartridge previously described, filled with activated carbon previously conditioned by contact with the pure ionic liquid under a pressure of about 3 bar at a liquid flow rate of about 0.3 mL .min -1 on
- the mixture recovered at the outlet of the cartridge is discolored, thus resulting in the elimination of the compounds at the origin of the coloring of the solution.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Treatment Of Liquids With Adsorbents In General (AREA)
- Water Treatment By Sorption (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1059218A FR2967081A1 (fr) | 2010-11-08 | 2010-11-08 | Procede de purification d'un melange visqueux contenant un ou plusieurs contaminants |
| PCT/FR2011/052606 WO2012062998A1 (fr) | 2010-11-08 | 2011-11-08 | Procede de purification d'un melange visqueux contenant un ou plusieurs contaminants |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2637759A1 true EP2637759A1 (fr) | 2013-09-18 |
Family
ID=43827367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11794537.8A Withdrawn EP2637759A1 (fr) | 2010-11-08 | 2011-11-08 | Procede de purification d'un melange visqueux contenant un ou plusieurs contaminants |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2637759A1 (fr) |
| FR (1) | FR2967081A1 (fr) |
| WO (1) | WO2012062998A1 (fr) |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2520733A (en) | 1946-08-26 | 1950-08-29 | Shell Dev | Polymers of trimethylene glycol |
| DE3629933A1 (de) * | 1986-09-03 | 1988-03-10 | Basf Ag | Verfahren zur entfernung von vinylpyrrolidon aus vinylpyrrolidon-polymerisaten |
| US5374600A (en) | 1990-01-29 | 1994-12-20 | Nippon Shokubai Kagaku Kogyo Co., Ltd. | Oil-absorbent polymer and use therefor |
| WO1997003092A1 (fr) | 1995-07-13 | 1997-01-30 | Hemasure A/S | Procede pour eliminer le polyethyleneglycol d'une solution de proteines ou de peptides |
| DE19638086A1 (de) * | 1996-09-11 | 1998-03-12 | Basf Ag | Verfahren zur Minderung der Geruchsemission wässriger Polymerisatdispersionen |
| DE19735960A1 (de) * | 1997-08-19 | 1999-02-25 | Basf Ag | Verwendung von Aktivkohle und/oder Kohlenstoffmolekularsieben zur Verbesserung des Fogging-Verhaltens von Geweben, Ledern und Faserverbundwerkstoffen |
| JP4083930B2 (ja) * | 1999-07-29 | 2008-04-30 | 花王株式会社 | イオン性高分子化合物の精製方法 |
| US6843835B2 (en) | 2001-03-27 | 2005-01-18 | The Procter & Gamble Company | Air cleaning apparatus and method for cleaning air |
| JP3612291B2 (ja) * | 2001-07-06 | 2005-01-19 | 花王株式会社 | 高分子化合物溶液の製造方法 |
| US6811703B2 (en) | 2002-06-18 | 2004-11-02 | Curtis Elliott | Methods for adsorption and retention of solvated compounds and ions |
| FR2848562B1 (fr) * | 2002-12-11 | 2006-07-07 | Ceca Sa | Procede de piegeage de composes libres contenus dans une composition polymerique |
| US20080264254A1 (en) | 2007-04-11 | 2008-10-30 | The Penn State Research Foundation | Novel sorbents and purification and bulk separation of gas streams |
| US8007658B2 (en) | 2008-06-03 | 2011-08-30 | Graftech International Holdings Inc. | Reduced puffing needle coke from coal tar |
| CN101633706B (zh) * | 2009-08-20 | 2011-06-15 | 华南理工大学 | N-乙烯基吡咯烷酮类聚合物溶液的提纯方法 |
-
2010
- 2010-11-08 FR FR1059218A patent/FR2967081A1/fr not_active Withdrawn
-
2011
- 2011-11-08 EP EP11794537.8A patent/EP2637759A1/fr not_active Withdrawn
- 2011-11-08 WO PCT/FR2011/052606 patent/WO2012062998A1/fr not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2012062998A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012062998A1 (fr) | 2012-05-18 |
| FR2967081A1 (fr) | 2012-05-11 |
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