JP2002503144A - 酸性pHで安定でない物質を脱イオン化する方法 - Google Patents
酸性pHで安定でない物質を脱イオン化する方法Info
- Publication number
- JP2002503144A JP2002503144A JP50158199A JP50158199A JP2002503144A JP 2002503144 A JP2002503144 A JP 2002503144A JP 50158199 A JP50158199 A JP 50158199A JP 50158199 A JP50158199 A JP 50158199A JP 2002503144 A JP2002503144 A JP 2002503144A
- Authority
- JP
- Japan
- Prior art keywords
- resin bed
- deionizing
- solution
- column
- exchanger
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 60
- 230000002378 acidificating effect Effects 0.000 title claims abstract description 44
- 239000000126 substance Substances 0.000 title claims abstract description 10
- 229920005989 resin Polymers 0.000 claims abstract description 64
- 239000011347 resin Substances 0.000 claims abstract description 64
- 150000001768 cations Chemical class 0.000 claims abstract description 40
- 150000001450 anions Chemical class 0.000 claims abstract description 31
- 238000005342 ion exchange Methods 0.000 claims abstract description 17
- 239000000243 solution Substances 0.000 claims description 66
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical group O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 239000007864 aqueous solution Substances 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 14
- 238000000926 separation method Methods 0.000 claims description 13
- 229960005451 gadoteridol Drugs 0.000 claims description 12
- DPNNNPAKRZOSMO-UHFFFAOYSA-K gadoteridol Chemical compound [Gd+3].CC(O)CN1CCN(CC([O-])=O)CCN(CC([O-])=O)CCN(CC([O-])=O)CC1 DPNNNPAKRZOSMO-UHFFFAOYSA-K 0.000 claims description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 239000002872 contrast media Substances 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 10
- NJKDOADNQSYQEV-UHFFFAOYSA-N iomeprol Chemical compound OCC(=O)N(C)C1=C(I)C(C(=O)NCC(O)CO)=C(I)C(C(=O)NCC(O)CO)=C1I NJKDOADNQSYQEV-UHFFFAOYSA-N 0.000 claims description 9
- 229960000780 iomeprol Drugs 0.000 claims description 9
- ZPDFIIGFYAHNSK-CTHHTMFSSA-K 2-[4,10-bis(carboxylatomethyl)-7-[(2r,3s)-1,3,4-trihydroxybutan-2-yl]-1,4,7,10-tetrazacyclododec-1-yl]acetate;gadolinium(3+) Chemical compound [Gd+3].OC[C@@H](O)[C@@H](CO)N1CCN(CC([O-])=O)CCN(CC([O-])=O)CCN(CC([O-])=O)CC1 ZPDFIIGFYAHNSK-CTHHTMFSSA-K 0.000 claims description 7
- 229960003411 gadobutrol Drugs 0.000 claims description 7
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 6
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical group OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims description 5
- 239000012458 free base Substances 0.000 claims description 5
- 230000005291 magnetic effect Effects 0.000 claims description 5
- 238000003325 tomography Methods 0.000 claims description 5
- 125000000524 functional group Chemical group 0.000 claims description 4
- 238000002601 radiography Methods 0.000 claims description 4
- 125000002843 carboxylic acid group Chemical group 0.000 claims description 2
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 claims description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 abstract description 3
- 238000005984 hydrogenation reaction Methods 0.000 abstract 1
- 239000000047 product Substances 0.000 description 43
- 150000002500 ions Chemical class 0.000 description 22
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 21
- 150000001875 compounds Chemical class 0.000 description 19
- 150000003839 salts Chemical class 0.000 description 19
- 239000012535 impurity Substances 0.000 description 15
- 238000010612 desalination reaction Methods 0.000 description 14
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 10
- 238000011033 desalting Methods 0.000 description 8
- 238000001728 nano-filtration Methods 0.000 description 8
- 239000008367 deionised water Substances 0.000 description 7
- 229910021641 deionized water Inorganic materials 0.000 description 7
- 238000000746 purification Methods 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
- 238000002242 deionisation method Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- -1 2-hydroxypropyl Chemical group 0.000 description 5
- 229910052688 Gadolinium Inorganic materials 0.000 description 5
- 238000005341 cation exchange Methods 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 238000010268 HPLC based assay Methods 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 239000003570 air Substances 0.000 description 4
- 239000002585 base Substances 0.000 description 4
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 description 4
- 239000003446 ligand Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000000909 electrodialysis Methods 0.000 description 3
- 238000010828 elution Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 150000003951 lactams Chemical group 0.000 description 3
- 238000005325 percolation Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- 102100024167 C-C chemokine receptor type 3 Human genes 0.000 description 2
- 101710149862 C-C chemokine receptor type 3 Proteins 0.000 description 2
- 229910003317 GdCl3 Inorganic materials 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- AMQJEAYHLZJPGS-UHFFFAOYSA-N N-Pentanol Chemical compound CCCCCO AMQJEAYHLZJPGS-UHFFFAOYSA-N 0.000 description 2
- 229920001429 chelating resin Polymers 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- SNRUBQQJIBEYMU-UHFFFAOYSA-N dodecane Chemical compound CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- MEANOSLIBWSCIT-UHFFFAOYSA-K gadolinium trichloride Chemical compound Cl[Gd](Cl)Cl MEANOSLIBWSCIT-UHFFFAOYSA-K 0.000 description 2
- 238000004128 high performance liquid chromatography Methods 0.000 description 2
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 230000031700 light absorption Effects 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 125000000250 methylamino group Chemical group [H]N(*)C([H])([H])[H] 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920001467 poly(styrenesulfonates) Polymers 0.000 description 2
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 159000000000 sodium salts Chemical class 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000000108 ultra-filtration Methods 0.000 description 2
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical group NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 1
- GIKNHHRFLCDOEU-UHFFFAOYSA-N 4-(2-aminopropyl)phenol Chemical compound CC(N)CC1=CC=C(O)C=C1 GIKNHHRFLCDOEU-UHFFFAOYSA-N 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical group [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 1
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 description 1
- 102000016955 Erythrocyte Anion Exchange Protein 1 Human genes 0.000 description 1
- 108010014384 Erythrocyte Anion Exchange Protein 1 Proteins 0.000 description 1
- 241000047703 Nonion Species 0.000 description 1
- YIKSCQDJHCMVMK-UHFFFAOYSA-N Oxamide Chemical compound NC(=O)C(N)=O YIKSCQDJHCMVMK-UHFFFAOYSA-N 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- LNUFLCYMSVYYNW-ZPJMAFJPSA-N [(2r,3r,4s,5r,6r)-2-[(2r,3r,4s,5r,6r)-6-[(2r,3r,4s,5r,6r)-6-[(2r,3r,4s,5r,6r)-6-[[(3s,5s,8r,9s,10s,13r,14s,17r)-10,13-dimethyl-17-[(2r)-6-methylheptan-2-yl]-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1h-cyclopenta[a]phenanthren-3-yl]oxy]-4,5-disulfo Chemical compound O([C@@H]1[C@@H](COS(O)(=O)=O)O[C@@H]([C@@H]([C@H]1OS(O)(=O)=O)OS(O)(=O)=O)O[C@@H]1[C@@H](COS(O)(=O)=O)O[C@@H]([C@@H]([C@H]1OS(O)(=O)=O)OS(O)(=O)=O)O[C@@H]1[C@@H](COS(O)(=O)=O)O[C@H]([C@@H]([C@H]1OS(O)(=O)=O)OS(O)(=O)=O)O[C@@H]1C[C@@H]2CC[C@H]3[C@@H]4CC[C@@H]([C@]4(CC[C@@H]3[C@@]2(C)CC1)C)[C@H](C)CCCC(C)C)[C@H]1O[C@H](COS(O)(=O)=O)[C@@H](OS(O)(=O)=O)[C@H](OS(O)(=O)=O)[C@H]1OS(O)(=O)=O LNUFLCYMSVYYNW-ZPJMAFJPSA-N 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 235000012538 ammonium bicarbonate Nutrition 0.000 description 1
- 239000001099 ammonium carbonate Substances 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical group 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000012045 crude solution Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
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- 238000002845 discoloration Methods 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- WBJINCZRORDGAQ-UHFFFAOYSA-N ethyl formate Chemical compound CCOC=O WBJINCZRORDGAQ-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 125000000350 glycoloyl group Chemical group O=C([*])C([H])([H])O[H] 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004029 hydroxymethyl group Chemical group [H]OC([H])([H])* 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 150000008040 ionic compounds Chemical class 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 230000005298 paramagnetic effect Effects 0.000 description 1
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
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- 239000012492 regenerant Substances 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
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- 239000011734 sodium Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- GKASDNZWUGIAMG-UHFFFAOYSA-N triethyl orthoformate Chemical compound CCOC(OCC)OCC GKASDNZWUGIAMG-UHFFFAOYSA-N 0.000 description 1
- HRXKRNGNAMMEHJ-UHFFFAOYSA-K trisodium citrate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O HRXKRNGNAMMEHJ-UHFFFAOYSA-K 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
- B01J39/04—Processes using organic exchangers
- B01J39/07—Processes using organic exchangers in the weakly acidic form
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Treatment Of Water By Ion Exchange (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.酸性pHで不安定である物質を脱イオン化するための分離型樹脂床イオン交 換法であって、 脱イオン化する溶液を、炭酸水素塩形態のアニオン交換体からなる第一の樹脂 床と接触させ、続いて、水素形態の弱酸性カチオン交換体からなる、直列に接続 された第二の樹脂床と接触させることを特徴とする方法。 2.第一の樹脂床が炭酸水素塩形態の強塩基性アニオン交換体からなる、請求項 1記載の方法。 3.アニオン交換体がトリメチルアンモニウムを官能基として含む、請求項1又 は2記載の方法。 4.カチオン交換体がカルボン酸基を官能基として含む、請求項1〜3のいずれ か1項記載の方法。 5.第二の樹脂床で処理した溶液を、遊離塩基形態の弱塩基性アニオン交換体又 は水酸化物形態の強塩基性アニオン交換体を含む、第二の樹脂床に直列に接続さ れた第三の樹脂床と接触させる、請求項1〜4のいずれか1項記載の方法。 6.第三の樹脂床で処理した溶液を、水素形態の弱酸性カチオン交換体を含む、 第三の樹脂床に直列に接続された第四の樹脂床と接触させる、請求項5記載の方 法。 7.X線撮影用のヨウ素化造影剤の水溶液を脱イオン化するための、請求項1〜 6のいずれか1項記載の方法。 8.Iomeprolの水溶液を脱イオン化するための、請求項7記載の方法。 9.磁気共鳴断層撮影用の造影剤の水溶液を脱イオン化するための、請求項1〜 6のいずれか1項記載の方法。 10.Gadoteridol及びGadobutrolの水溶液を脱イオン化するための、請求項9 記載の方法。 11.請求項1〜10記載の方法を実施するための、下降流で作動するための装 備を有する、直列に接続された2本のカラム(C−1、C−2)を含む装置であ って、 第二のカラムが、処理中に発生するCO2のための通気孔(g)を備えること と、カラムの底にある液体出口が、大気圧又は減圧にあることができる気液分離 容器(e)に接続されていることとを特徴とする装置。 12.気液分離装置(e)に代えて窒素もしくは空気又は蒸気ストリッピングカ ラムを用いる、請求項11記載の装置。 13.請求項1〜10記載の方法を実施するための、直列に接続された2本のカ ラムからなる装置であって、 第二のカラムが、上昇流で作動するための装備を有することを特徴とする装置 。 14.下降流で作動するための装備を有する標準的なイオン交換カラムとして構 築された第三及び第四のカラムに接続された、請求項11〜13のいずれか1項 記載の装置を含む、請求項1〜10記載の方法を実施するための装置。 15.X線撮影用のヨウ素化造影剤の水溶液を脱イオン化するための、請求項1 1〜14記載の装置の用途。 16.Iomeprolの水溶液を脱イオン化するための、請求項15記載の装置の用途 。 17.磁気共鳴断層撮影用の造影剤の水溶液を脱イオン化するための、請求項1 1〜14記載の装置の用途。 18.Gadoteridol及びGadobutrolの水溶液を脱イオン化するための、請求項1 7記載の装置の用途。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT97A001370 | 1997-06-11 | ||
IT97MI001370A IT1292127B1 (it) | 1997-06-11 | 1997-06-11 | Processo per la dissalazione di sostanze instabili a ph acidi |
PCT/EP1998/003467 WO1998056504A1 (en) | 1997-06-11 | 1998-06-09 | METHOD FOR THE DEIONIZATION OF SUBSTANCES THAT ARE NOT STABLE AT ACIDIC pH |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2002503144A true JP2002503144A (ja) | 2002-01-29 |
JP2002503144A5 JP2002503144A5 (ja) | 2005-12-22 |
JP4157605B2 JP4157605B2 (ja) | 2008-10-01 |
Family
ID=11377335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50158199A Expired - Lifetime JP4157605B2 (ja) | 1997-06-11 | 1998-06-09 | 酸性pHで安定でない物質を脱イオン化する方法 |
Country Status (16)
Country | Link |
---|---|
US (1) | US6066259A (ja) |
EP (1) | EP0991471B1 (ja) |
JP (1) | JP4157605B2 (ja) |
CN (1) | CN1120753C (ja) |
AT (1) | ATE248023T1 (ja) |
AU (1) | AU8437698A (ja) |
CZ (1) | CZ293928B6 (ja) |
DE (1) | DE69817569T2 (ja) |
DK (1) | DK0991471T3 (ja) |
ES (1) | ES2205524T3 (ja) |
IN (1) | IN185470B (ja) |
IT (1) | IT1292127B1 (ja) |
NO (1) | NO319927B1 (ja) |
PT (1) | PT991471E (ja) |
WO (1) | WO1998056504A1 (ja) |
ZA (1) | ZA985024B (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6281255B1 (en) * | 2000-06-06 | 2001-08-28 | Graver Technologies, Inc. | Methods for regeneration of weakly basic anion exchange resins with a combination of an alkali metal carbonate and an alkali metal bicarbonate |
WO2009029464A1 (en) * | 2007-08-27 | 2009-03-05 | Mallinckrodt Inc. | Removal of silica from water soluble compounds by nanofiltration and reverse phase chromatography |
AU2012244791B2 (en) | 2011-04-21 | 2017-04-27 | Bayer Intellectual Property Gmbh | Preparation of high-purity gadobutrol |
US20210284662A1 (en) * | 2018-07-10 | 2021-09-16 | Biophore India Pharmaceuticals Pvt. Ltd | Process for the preparation of 2,2',2''-(10-((2r,3s)-1,3,4-trihydroxy butan-2-yl)-1,4,7,10-tetraazacyclododecane-1,4,7-triyl) triacetic acid and its complexes |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3388059A (en) * | 1967-08-28 | 1968-06-11 | Nalco Chemical Co | Acid water treating process |
DE1920497B2 (de) * | 1969-04-23 | 1975-10-30 | Bayer Ag, 5090 Leverkusen | Aufbereitung von Lösungen mit einem schwach sauren Carboxylkationenaustauscher und einem stark basischen Anionenaustauscher |
FR2033719A5 (ja) * | 1969-07-02 | 1970-12-04 | Resindion Spa | |
US3618589A (en) * | 1970-03-16 | 1971-11-09 | Sybron Corp | Desalination process by ion exchange |
US4131645A (en) * | 1974-11-21 | 1978-12-26 | Ethyl Corporation | Iodine recovery process |
IT1193211B (it) * | 1979-08-09 | 1988-06-15 | Bracco Ind Chimica Spa | Derivati dell'acido 2,4,6-triiodo-isoftalico,metodo per la loro preparazione e mezzi di contrasto che li contengono |
DE3102693C1 (de) * | 1981-01-28 | 1982-09-30 | Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe | "Verfahren zur Regeneration von in wäßrigen Suspensionen vorliegenden, schwach sauren Ionenaustauscherharzen mit Kohlendioxid" |
DE3229019A1 (de) * | 1982-08-04 | 1984-02-09 | Metallgesellschaft Ag, 6000 Frankfurt | Verfahren zum behandeln von abwasser |
US5447635A (en) * | 1991-02-26 | 1995-09-05 | Bracco International B.V. | Process of concentration and purification of organic compounds |
IT1248741B (it) * | 1991-02-26 | 1995-01-26 | Bracco Spa | Processo di concentrazione e di purificazione di composti organici |
US5446125A (en) * | 1991-04-01 | 1995-08-29 | Ocg Microelectronic Materials, Inc. | Method for removing metal impurities from resist components |
DE4304666A1 (de) * | 1993-02-16 | 1994-08-18 | Brita Wasserfilter | Verfahren zum Entsalzen von Wasser |
EP0670184B1 (en) * | 1994-03-01 | 2001-09-05 | Mitsubishi Chemical Corporation | Method of demineralizing water or an aqueous solution |
IT1274027B (it) * | 1994-03-03 | 1997-07-14 | Zambon Spa | Processo per la preparazione e purificazione di mezzi di contrasto iodurati |
US5811581A (en) * | 1994-08-04 | 1998-09-22 | Dibra S.P.A. | Process for the purification of opacifying contrast agents |
-
1997
- 1997-06-11 IT IT97MI001370A patent/IT1292127B1/it active IP Right Grant
-
1998
- 1998-06-09 DE DE69817569T patent/DE69817569T2/de not_active Expired - Lifetime
- 1998-06-09 PT PT98934942T patent/PT991471E/pt unknown
- 1998-06-09 CN CN98806004A patent/CN1120753C/zh not_active Expired - Lifetime
- 1998-06-09 AT AT98934942T patent/ATE248023T1/de active
- 1998-06-09 WO PCT/EP1998/003467 patent/WO1998056504A1/en active IP Right Grant
- 1998-06-09 AU AU84376/98A patent/AU8437698A/en not_active Abandoned
- 1998-06-09 CZ CZ19994441A patent/CZ293928B6/cs not_active IP Right Cessation
- 1998-06-09 JP JP50158199A patent/JP4157605B2/ja not_active Expired - Lifetime
- 1998-06-09 DK DK98934942T patent/DK0991471T3/da active
- 1998-06-09 ES ES98934942T patent/ES2205524T3/es not_active Expired - Lifetime
- 1998-06-09 EP EP98934942A patent/EP0991471B1/en not_active Expired - Lifetime
- 1998-06-10 IN IN1254MA1998 patent/IN185470B/en unknown
- 1998-06-10 ZA ZA985024A patent/ZA985024B/xx unknown
- 1998-06-10 US US09/094,510 patent/US6066259A/en not_active Expired - Lifetime
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1999
- 1999-12-09 NO NO19996079A patent/NO319927B1/no not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0991471A1 (en) | 2000-04-12 |
ATE248023T1 (de) | 2003-09-15 |
NO996079D0 (no) | 1999-12-09 |
CN1120753C (zh) | 2003-09-10 |
ZA985024B (en) | 1999-01-25 |
IT1292127B1 (it) | 1999-01-25 |
JP4157605B2 (ja) | 2008-10-01 |
NO996079L (no) | 1999-12-09 |
CZ444199A3 (cs) | 2000-06-14 |
CZ293928B6 (cs) | 2004-08-18 |
CN1260736A (zh) | 2000-07-19 |
DE69817569T2 (de) | 2004-04-08 |
ES2205524T3 (es) | 2004-05-01 |
DK0991471T3 (da) | 2003-12-22 |
AU8437698A (en) | 1998-12-30 |
NO319927B1 (no) | 2005-10-03 |
US6066259A (en) | 2000-05-23 |
ITMI971370A1 (it) | 1998-12-11 |
IN185470B (ja) | 2001-01-27 |
ITMI971370A0 (ja) | 1997-06-11 |
DE69817569D1 (de) | 2003-10-02 |
EP0991471B1 (en) | 2003-08-27 |
PT991471E (pt) | 2003-12-31 |
WO1998056504A1 (en) | 1998-12-17 |
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