JP6883567B2 - アクリル樹脂を再生する方法 - Google Patents
アクリル樹脂を再生する方法 Download PDFInfo
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- JP6883567B2 JP6883567B2 JP2018510053A JP2018510053A JP6883567B2 JP 6883567 B2 JP6883567 B2 JP 6883567B2 JP 2018510053 A JP2018510053 A JP 2018510053A JP 2018510053 A JP2018510053 A JP 2018510053A JP 6883567 B2 JP6883567 B2 JP 6883567B2
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- aqueous solution
- resin
- acrylic resin
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- 239000004021 humic acid Substances 0.000 claims description 22
- 239000002509 fulvic acid Substances 0.000 claims description 17
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- 238000006116 polymerization reaction Methods 0.000 description 18
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- 101150062156 RBD2 gene Proteins 0.000 description 2
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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
- B01J49/00—Regeneration or reactivation of ion-exchangers; Apparatus therefor
- B01J49/50—Regeneration or reactivation of ion-exchangers; Apparatus therefor characterised by the regeneration reagents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J47/02—Column or bed processes
- B01J47/026—Column or bed processes using columns or beds of different ion exchange materials in series
- B01J47/028—Column or bed processes using columns or beds of different ion exchange materials in series with alternately arranged cationic and anionic exchangers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J49/00—Regeneration or reactivation of ion-exchangers; Apparatus therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J49/00—Regeneration or reactivation of ion-exchangers; Apparatus therefor
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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
- B01J49/00—Regeneration or reactivation of ion-exchangers; Apparatus therefor
- B01J49/50—Regeneration or reactivation of ion-exchangers; Apparatus therefor characterised by the regeneration reagents
- B01J49/57—Regeneration or reactivation of ion-exchangers; Apparatus therefor characterised by the regeneration reagents for anionic exchangers
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
- C02F2001/422—Treatment of water, waste water, or sewage by ion-exchange using anionic exchangers
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
- C02F2001/425—Treatment of water, waste water, or sewage by ion-exchange using cation exchangers
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- C—CHEMISTRY; METALLURGY
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Description
(a)5.5以下のpHを有する水溶液(A)を提供することであって、
(i)溶解した有機炭素として測定される1mg/L以上の量の1つ以上の溶解有機化合物と、
(ii)水溶液(A)の重量に基づき95重量%以上の水とを含む、提供することと、
(b)水溶液(A)を、−1.0〜2.5の計算されたHanschパラメータを有するアクリル樹脂(B)の粒子の集合体に接触させることと、
(c)次いで、アクリル樹脂(B)の粒子の集合体から水溶液(C)を分離することと、を含む、水を精製する方法である。
(A)−1.0〜2.5の計算されたHanschパラメータを有するアクリル樹脂(B2)の粒子の集合体を提供することであって、1つ以上のフミン酸、1つ以上のフルボ酸、またはこれらの混合物がアクリル樹脂(B2)に吸着する、提供することと、
(B)アクリル樹脂(B2)の粒子の集合体を、4以下のpHを有する水溶液(RA)と接触させて、混合物B2RAを形成することと、
(C)次いで、混合物B2RAからアクリル樹脂(B3)を分離することと、を含む、アクリル樹脂(B2)を再生する方法である。
(A)−1.0〜2.5の計算されたHanschパラメータを有するアクリル樹脂(B2)の粒子の集合体を提供することであって、1つ以上のフミン酸、1つ以上のフルボ酸、またはこれらの混合物がアクリル樹脂(B2)に吸着する、提供することと、
(B)アクリル樹脂(B2)の粒子の集合体を、10以上のpHを有する水溶液(RB)と接触させて、混合物B2RBを形成することであって、前記水溶液(RB)が、金属陽イオン及び水酸化物陰イオンを含む、形成することと、
(C)次いで、混合物B2RBからアクリル樹脂(B4)を分離することと、を含む、アクリル樹脂(B2)を再生する方法である。
DVB=ジビニルベンゼン
h=時間
BV=床体積
aqu=水性
soln.=溶液
Scav1=−0.1のハッシュパラメータを有するアクリル樹脂
Scav2=0.0のハッシュパラメータを有するアクリル樹脂
ppm C/L=1リットル当たりの炭素の重量百万分率
RW=砂を通した濾過後の河川水;平均TOC=2.6ppm C/L(最小TOC=1.9ppm C/L、最大TOC=3.9ppm C/L)。下記の例では、RWは常に2.5〜3.2のpHを有していた。
TOC=GE Power&WaterのSIEVERS 900アナライザーを用いて測定された溶解有機炭素。
WB1=AMBERLITE(商標)IRA96、ペンダント第三級アミン基、2.6〜2.8の範囲のHanschパラメータを有するマクロポーラススチレン/DVBコポリマー。
SB1=AMBERLITE(商標)IRA900、強塩基性マクロポーラススチレン/DVBコポリマー、−1.6〜−1.4の範囲のHanschパラメータ。
実施例1及び2は、以下のように、図1に記載された構成を採用した:
陽イオン交換樹脂(Y)=AMBERJET(商標)UP1400樹脂またはAMBERJET(商標)1500樹脂(いずれもDow Chemical Company製)。両方とも、ゲルタイプ、スルホン酸官能性、ポリスチレンジビニルベンゼンコポリマー樹脂である。これらの2つの樹脂は、本方法において交換可能であると考えられる。この方法を実施する当初では、両方とも水素形態であった。
陰イオン交換樹脂(D)=AMBERLITE(商標)IRA900強塩基陰イオン交換樹脂、ペンダントトリエチルアンモニウム基を有するスチレン/DVBコポリマー(The Dow Chemical Company)
流れの方向:各容器の上から下へ
容器寸法:3cm内径、28.3cm床深さ
流速:3L/h
特定の流速:15BV/h
RWは、3.8ppm C/LのTOCを有した。
水溶液(A)のpH、アクリル樹脂(B)への流入量は2.5〜3.2であった。
実施例1アクリル樹脂(B)=Scav1
実施例2アクリル樹脂(B)=Scav2
水溶液(C)のTOC対水溶液(A)のTOCの比が0.8:1に達するまで、スカベンジャー樹脂Scav1に実施例1の手順を用いて溶解有機化合物を装填した。
Scav1の代わりにScav2を用いて実施例1を繰り返した。結果は以下の通りである:
供給される水のTOCが2.1ppbC/Lであること除いて、実施例1の手順を繰り返した。樹脂(B)として、以下が用いられた:
樹脂(B)を比較樹脂SB1としたことを除いて実施例1を繰り返した(Cl形態のAMBERLITE(商標)IRA900)。実施例10Cの結果は、実施例1の結果と直接比較し得る。
樹脂Scav1を、実施例1の手順において、樹脂が上記の基準に従って装填されるまで使用した。
実施例11:10重量%のNaCl及び1重量%のNaOHの水溶液
実施例12:10重量%のNaOH及び1重量%のNaClの水溶液
溶解有機化合物を酸性KMnO4試験を用いて決定した。結果は以下の通りである:
装填されたScav1樹脂を、以下の変更を伴い、実施例11及び12の方法を用いて再生した。樹脂を第1の再生床体積に3時間曝し、第2の再生床体積に2時間曝した。
Claims (3)
- (A)−0.2〜0.5の計算されたHanschパラメータを有するアクリル樹脂(B2)の粒子の集合体を提供することであって、1つ以上のフミン酸、1つ以上のフルボ酸、またはこれらの混合物が前記アクリル樹脂(B2)に吸着する、提供することと、
(B)前記アクリル樹脂(B2)の粒子の集合体を、4以下のpHを有する水溶液(RA)と接触させて、混合物B2RAを形成することと、
(C)次いで、前記混合物B2RAからアクリル樹脂(B3)を分離することと、を含み、
前記アクリル樹脂(B2)及び前記アクリル樹脂(B3)が弱塩基性樹脂である、アクリル樹脂(B2)を再生する方法。 - 前記水溶液(RA)が1以下のpHを有する、請求項1に記載の方法。
- 前記アクリル樹脂(B2)の粒子の集合体が、−0.2〜0.2の計算されたHanschパラメータを有する、請求項1または2に記載の方法。
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US62/305,110 | 2016-03-08 | ||
PCT/US2016/051580 WO2017048748A1 (en) | 2015-09-15 | 2016-09-14 | Method of regenerating an acrylic resin |
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FR1344940A (fr) | 1962-08-30 | 1963-12-06 | Sucrerie Et Distillerie Agrico | Procédé de décoloration de jus ou sirops de sucrerie |
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DE3001856A1 (de) | 1980-01-19 | 1981-07-23 | Bayer Ag, 5090 Leverkusen | Anionenaustauscher, verfahren zu ihrer herstellung und ihre verwendung |
US4537683A (en) | 1982-02-01 | 1985-08-27 | Rohm And Haas Company | Trihalomethane precursor removal using ion exchange emulsions |
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US20020193453A1 (en) * | 2001-06-04 | 2002-12-19 | Bohling James Charles | Preparation of weak acid cation exchange resins |
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