JP2017528312A - 金属を結合するための吸着剤およびその製造 - Google Patents
金属を結合するための吸着剤およびその製造 Download PDFInfo
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- JP2017528312A JP2017528312A JP2017511627A JP2017511627A JP2017528312A JP 2017528312 A JP2017528312 A JP 2017528312A JP 2017511627 A JP2017511627 A JP 2017511627A JP 2017511627 A JP2017511627 A JP 2017511627A JP 2017528312 A JP2017528312 A JP 2017528312A
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- Prior art keywords
- adsorbent
- amino group
- support material
- porous support
- containing polymer
- Prior art date
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- Granted
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 63
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- 150000002739 metals Chemical class 0.000 title abstract description 16
- 239000000463 material Substances 0.000 claims description 107
- 125000003277 amino group Chemical group 0.000 claims description 96
- 229920000642 polymer Polymers 0.000 claims description 96
- 239000011148 porous material Substances 0.000 claims description 54
- 238000000034 method Methods 0.000 claims description 53
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- 238000004448 titration Methods 0.000 claims description 19
- 230000008569 process Effects 0.000 claims description 16
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- 239000002879 Lewis base Substances 0.000 claims description 8
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- 239000010949 copper Substances 0.000 description 30
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- 229910052802 copper Inorganic materials 0.000 description 26
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- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 18
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- 229910001385 heavy metal Inorganic materials 0.000 description 8
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- 239000011780 sodium chloride Substances 0.000 description 7
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 7
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- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 4
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- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
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- 125000000467 secondary amino group Chemical group [H]N([*:1])[*:2] 0.000 description 3
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- UWFRVQVNYNPBEF-UHFFFAOYSA-N 1-(2,4-dimethylphenyl)propan-1-one Chemical compound CCC(=O)C1=CC=C(C)C=C1C UWFRVQVNYNPBEF-UHFFFAOYSA-N 0.000 description 2
- 239000004971 Cross linker Substances 0.000 description 2
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- 229910001413 alkali metal ion Inorganic materials 0.000 description 2
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- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
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- SEFYJVFBMNOLBK-UHFFFAOYSA-N 2-[2-[2-(oxiran-2-ylmethoxy)ethoxy]ethoxymethyl]oxirane Chemical compound C1OC1COCCOCCOCC1CO1 SEFYJVFBMNOLBK-UHFFFAOYSA-N 0.000 description 1
- HSSYVKMJJLDTKZ-UHFFFAOYSA-N 3-phenylphthalic acid Chemical compound OC(=O)C1=CC=CC(C=2C=CC=CC=2)=C1C(O)=O HSSYVKMJJLDTKZ-UHFFFAOYSA-N 0.000 description 1
- UUEWCQRISZBELL-UHFFFAOYSA-N 3-trimethoxysilylpropane-1-thiol Chemical compound CO[Si](OC)(OC)CCCS UUEWCQRISZBELL-UHFFFAOYSA-N 0.000 description 1
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- DJHGAFSJWGLOIV-UHFFFAOYSA-K Arsenate3- Chemical class [O-][As]([O-])([O-])=O DJHGAFSJWGLOIV-UHFFFAOYSA-K 0.000 description 1
- NOWKCMXCCJGMRR-UHFFFAOYSA-N Aziridine Chemical compound C1CN1 NOWKCMXCCJGMRR-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
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- 238000004566 IR spectroscopy Methods 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- 238000005004 MAS NMR spectroscopy Methods 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- DTQVDTLACAAQTR-UHFFFAOYSA-M Trifluoroacetate Chemical compound [O-]C(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-M 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
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- 238000004220 aggregation Methods 0.000 description 1
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- 150000001336 alkenes Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
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- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
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- 238000011068 loading method Methods 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
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- 150000002823 nitrates Chemical class 0.000 description 1
- 150000002826 nitrites Chemical class 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 description 1
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- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
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- 239000012266 salt solution Substances 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical class O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
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- 239000010936 titanium Substances 0.000 description 1
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- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
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- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Classifications
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- 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
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/26—Synthetic macromolecular compounds
-
- 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
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
- B01J20/3242—Layers with a functional group, e.g. an affinity material, a ligand, a reactant or a complexing group
- B01J20/3268—Macromolecular compounds
- B01J20/3272—Polymers obtained by reactions otherwise than involving only carbon to carbon unsaturated bonds
-
- 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
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
-
- 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
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Abstract
Description
・ アミノ基含有ポリマーによる支持材料の孔のほぼ完全な充填にも関わらず、ポリマーの浸透性のために孔は金属に利用可能であり、その結果として本発明による吸着剤は高い金属結合能を有する。このことは、逆サイズ排除クロマトグラフィーからのポリマー標準物が、利用可能性または浸透性を示さなかったので、いっそう驚くことであった。このことはまた、450Daを有する最小の標準物についてさえ90%を超えて観察された。
・ 表面機能化の原理に基づく、通常のクロマトグラフ吸着剤および金属結合吸着剤と対照的に、驚くべくことに、高い金属結合特性により、本発明は、ポリマーの表面だけでなく、結合に関与するポリマーの全体積を利用することが見出された。すなわち、金属を含有する溶媒と一緒にアミノ基含有ポリマーは、ポリマー網がナノ細孔性を示す、いわゆるヒドロゲルを形成する。これは、金属結合能が支持材料の表面によって決定されるのではなく、むしろ適用されるポリマーの体積によって決定されるという効果を有する。
・ 本発明による吸着剤または本発明によって製造された吸着剤の高い金属結合能は、アミノ基含有ポリマーの基と結合される金属との間の化学錯体の形成に起因する。これらの基はアミノ基自体であってもよいか、またはアミノ基含有ポリマーに結合するルイス塩基特性を有する残基であってもよい(以下に記載される)。これは例えば、古典的なイオン交換体と比べて酸性媒質中で高耐塩性および結合能の利点を生じる。
・ 金属が結合する化学錯体の形成と並行して、相はまた依然として、アニオン、例えば硫酸塩、リン酸塩、亜硝酸塩、硝酸塩、クロム酸塩、ヒ酸塩などに対して非常に高い結合能を有する。
(a)多孔質支持材料を提供する工程、
(b)孔充填法によって多孔質支持材料にアミノ基含有ポリマーを塗布する工程、
(c)孔充填法において使用された溶媒を除去する工程、
(d)工程(b)および(c)を反復する工程、ならびに
(e)アミノ基含有ポリマーを架橋する工程
を含む、方法に関する。
4−トルエンスルホン酸を用いた貫流測定による吸着剤のアミノ基の濃度の決定(滴定分析):
動的アニオン交換能を、試験する固定相のカラムを用いて決定する。このために、最初にカラムにおける全ての交換可能なアニオンをトリフルオロアセテートと交換する。次いでカラムを、トルエン−4−スルホン酸の水性試薬液がカラムの端部で同じ濃度で再び現れる(貫流する)までこの試薬液でリンスする。トルエン−4−スルホン酸溶液の濃度から、クロマトグラムにおけるその流量および貫流領域、カラムによって結合したトルエン−4−スルホン酸の量を算出する。このように決定したトルエン−4−スルホン酸の量により、吸着剤のアミノ基の濃度が得られる。
200gのスルホン化ポリスチレン/ジビニルベンゼン支持材料(平均孔径30nm)を容器内で秤量する。この材料は1.48mL/gのWACから決定した孔体積を有する。最初の被覆において、孔体積を95%充填すべきである。被覆用のポリマー溶液を調製する。165.3gのポリビニルアミン溶液(固体含有量12.1wt%)を108gの水で希釈する。溶液のpHを7mlの濃塩酸で9.5に調整する。ポリマー溶液を支持体に加え、オーバーヘッドシェーカーで3時間混合する。次に被覆した支持体を、25mBarで真空乾燥キャビネットにおいて50℃にて48時間乾燥させる。乾燥により材料は197.7gの水を損失した。材料を2回目に被覆する。このために、165.0gのポリビニルアミン溶液(固体含有量12.1wt%)を6.8mLの濃HClで9.5のpHに調整し、20gの水で希釈する。ポリマー溶液を支持体に加え、オーバーヘッドシェーカーで3時間混合する。次に被覆した支持体を、25mBarで真空乾燥キャビネットにおいて50℃にて48時間乾燥させる。乾燥により材料は181.2gの水を損失した。材料を3回目に被覆する。このために、165.2gのポリビニルアミン溶液(固体含有量12.1%)を7.1mLの濃HClで9.5のpHに調整し、5gの水で希釈する。ポリマー溶液を支持体に加え、オーバーヘッドシェーカーで3時間混合する。次いで50℃および25mBarで真空乾燥キャビネットにおいて相を一定の重量まで乾燥させる。
従来の吸着剤は、45μm超の粒径を有する、2−アミノエチルサルファイドエチル((Si)−CH2−CH2−S−CH2−CH2−NH2)で修飾したシリカゲル(製造者Phosphonics、供給者Sigma−Aldrich、カタログ番号:743453−10G;0.8〜1.3mmol/g充填)である。
図1および2における等温線のプロットに関して、以下の手順を使用した:
各々約100mgの吸着剤の10個の試料を正確に秤量し、各場合、少なくとも1.5時間、異なる濃度の異なるCu−II水溶液(CuSO4として)とインキュベートした。吸着剤を濾去し、溶液中のCu−II濃度を光度測定により決定した。銅の残存濃度から、結合した銅の量を算出し、等温線を生成した。
各場合、規定量の吸着剤の10個の試料を正確に秤量し、各場合、少なくとも1.5時間、異なる濃度の異なる金属水溶液とインキュベートした。吸着剤を濾去し、溶液中の金属濃度を光度測定により、またはHach−Langeに従う金属測定法を用いて(好ましくは光度測定により)測定した。金属の残存濃度から、結合した金属の量を算出し、等温線を生成した。
約100mgの吸着剤の5つの試料を正確に秤量し、各々、少なくとも0.5時間、0MのNaCl、0.01MのNaCl、0.1MのNaCl、0.5MのNaClおよび1MのNaClをそれぞれ含有するCu溶液(CuSO4*5H2O=50mg/mlの水として)とインキュベートした。次に、吸着剤を濾去し、濾液中の銅濃度を光度測定により測定した。金属の残存濃度から、結合した銅の量を算出し、等温線を生成した。
各々、約100mgの相を有する試料を正確に秤量し、記載した期間、Cu溶液(CuSO4*5H2O=50mg/mlの水として)とインキュベートした。次に、吸着剤を濾去し、濾液中の銅濃度を光度測定により決定した。金属の残存濃度から、結合した銅の量を算出する。
実施例1からの1gの吸着剤を秤量し、以下のように処理した:
1. 1MのNaOH(3×5ml)でリンスする
2. 水(3×5mlでリンスする)
3. 50mlのCu(CuSO4*5H2O、50mg/mlとして)の添加
4. 90分間のインキュベーション
5. 濾過
6. 濾液中の(光度測定による)銅濃度の測定および結合した銅の量の算出
7. 手順の反復
シリカ支持体における単回被覆した吸着剤の製造:
100gのシリカゲルAGC D−50−120A(平均孔径12nm)を容器内で秤量する。この材料は1.12mL/gのWACから決定した孔体積を有する。被覆のためのポリマー溶液を調製する。79.6gのポリビニルアミン溶液(固体含有量11.3wt%)を20gの水で希釈する。溶液のpHを3mlの濃塩酸で9.5に調整する。ポリマー溶液を支持体に加え、スクリーニングマシンで6時間混合する。次に、被覆した支持体を25mbarで真空乾燥キャビネット中で50℃にて48時間乾燥させる。
250gのシリカゲルAGC D−50−120A(平均孔径12nm)を容器内で秤量する。この材料は1.12mL/gのWACから決定された孔体積を有する。被覆するためのポリマー溶液を調製する。200gのポリビニルアミン溶液(固体含有量11.3wt%)を60gの水で希釈する。溶液のpHを7.5mlの濃塩酸で9.5に調整する。ポリマー溶液を支持体に加え、スクリーンマシンで振動によって6時間混合する。次に、被覆した支持体を25mbarで真空乾燥キャビネット中で50℃にて48時間乾燥させる。乾燥により材料は230gの水を損失した。材料を2回目に被覆する。このために、200gのポリビニルアミン溶液(固体含有量11.3wt%)を6.8mLの濃HClで9.5のpHに調整し、23gの水で希釈する。ポリマー溶液を支持体に加え、スクリーンマシンで振動によって6時間再び混合する。次に、被覆した支持体を25mbarで真空乾燥キャビネット中で50℃にて48時間乾燥させる。
250gのシリカゲルAGC D−50−120A(平均孔径12nm)を容器内で秤量する。この材料は1.12mL/gのWACから決定された孔体積を有する。被覆するためのポリマー溶液を調製する。199gのポリビニルアミン溶液(固体含有量11.3wt%)を60gの水で希釈する。溶液のpHを7.6mlの濃塩酸で9.5に調整する。ポリマー溶液を支持体に加え、スクリーニングマシンで振動によって6時間混合する。次に、被覆した支持体を25mbarで真空乾燥キャビネット中で50℃にて48時間乾燥させる。乾燥により材料は231gの水を損失した。材料を2回目に被覆する。このために、200gのポリビニルアミン溶液(固体含有量11.3wt%)を7.0mLの濃HClで9.5のpHに調整し、24gの水で希釈する。ポリマー溶液を支持体に加え、スクリーニングマシンで振動によって6時間再び混合する。次に、被覆した支持体を25mbarで真空乾燥キャビネット中で50℃にて48時間乾燥させる。乾燥により材料は210gの水を損失した。材料を3回目に被覆する。このために、199gのポリビニルアミン溶液(固体含有量11.3wt%)を7.0mLの濃HClで9.5のpHに調整し、4gの水で希釈する。ポリマー溶液を支持体に加え、スクリーニングマシンで6時間振動によって再び混合する。次に、被覆した支持体を25mbarで真空乾燥キャビネット中で50℃にて48時間乾燥させる。
吸着剤についての基剤として、Rohm & Haas製のAmberchrom CG1000Sを使用する。これを以下のようにスルホン化する:このために、165mLの濃H2SO4を温度制御可能な250mLの反応器に入れる。30.0gの支持材料を硫酸に加え、次いで秤量したボトルを、各場合20mLの濃硫酸で3回リンスする。支持材料の添加後、懸濁液を撹拌し、80℃で維持する。3時間の反応時間後、懸濁液を反応器から捨て、2つの150mLのシリンジに分配する。硫酸を吸引下で除去し、相を200mLの希釈した(62%)硫酸、125mLの水、175mLのメタノール、125mLの水および最後に175mLのメタノールで連続してリンスする。相を吸引乾燥し、次いで真空下で50℃にて乾燥させる。得られたスルホン化ポリスチレンの吸水能または孔体積を、乾燥した、スルホン化ポリスチレンを秤量し、同体積の水で処理し、次いで過剰の水を遠心分離で除去することによって決定する。孔に存在する水は、この間、所定の位置に残ったままである。
Claims (15)
- アミノ基含有ポリマーで被覆された多孔質支持材料を含む吸着剤であって、滴定によって決定される前記吸着剤のアミノ基の濃度は、前記吸着剤の全体積に基づいて少なくとも600μmol/mLである、吸着剤。
- 前記多孔質支持材料の孔の全体積に対する前記アミノ基含有ポリマーの質量の割合は、0.1g/mL以上である、請求項1に記載の吸着剤。
- 前記多孔質支持材料の孔の体積は、前記多孔質支持材料の全体積に基づいて30〜90vol%の範囲である、請求項1または2に記載の吸着剤。
- 前記多孔質支持材料は、6nm〜400nmの範囲の平均孔径を有する、請求項1〜3のいずれか一項に記載の吸着剤。
- 前記多孔質支持材料は、有機ポリマー、無機材料または有機ポリマーと無機材料の複合材料を含む、請求項1〜4のいずれか一項に記載の吸着剤。
- 前記アミノ基含有ポリマーは、ポリアルキルアミンである、請求項1〜5のいずれか一項に記載の吸着剤。
- 前記アミノ基含有ポリマーは、架橋ポリマーであり、および/または前記多孔質支持材料と共有結合せずに存在する、請求項1〜6のいずれか一項に記載の吸着剤。
- 吸着剤を製造するための方法であって、以下の工程:
(a)多孔質支持材料を提供する工程、
(b)孔充填法によって前記多孔質支持材料にアミノ基含有ポリマーを塗布する工程、
(c)前記孔充填法において使用された溶媒を除去する工程、
(d)工程(b)および(c)を反復する工程、ならびに
(e)前記アミノ基含有ポリマーを架橋する工程
を含む、方法。 - 前記工程(b)および(c)は、滴定によって工程(e)の後に決定される前記吸着剤のアミノ基の濃度が、前記吸着剤の全体積に基づいて少なくとも600μmol/mLであるように工程(e)の前に十分に多く反復される、請求項8に記載の方法。
- 工程(d)の後、前記多孔質支持材料の孔の全体積に対する前記アミノ基含有ポリマーの質量の割合は0.1g/mL以上である、請求項8または9に記載の方法。
- 工程(c)は、40〜80℃の範囲の温度および/または0.01bar〜1barの範囲の圧力で実施される、請求項8〜10のいずれか一項に記載の方法。
- 工程(b)において前記孔充填法に使用される溶媒中の前記アミノ基含有ポリマーの濃度は、5g/L〜200g/Lの範囲である、請求項8〜11のいずれか一項に記載の方法。
- 工程(f)においてルイス塩基の性質を有する有機残基が、アミノ基含有ポリマーに結合される、請求項8〜12のいずれか一項に記載の方法。
- 請求項8〜13のいずれか一項に記載の方法によって得られる吸着剤。
- 溶液から金属を結合するための吸着剤の使用であって、前記吸着剤はアミノ基含有ポリマーで被覆された多孔質支持材料であり、滴定によって決定される前記吸着剤のアミノ基の濃度は少なくとも300μmol/mLであるか、または前記吸着剤は請求項8〜13のいずれか一項に記載の方法によって得られる吸着剤である、使用。
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