JP2018122253A - 遠心ろ過器とこれを用いた液中微粒子の捕捉観察方法 - Google Patents
遠心ろ過器とこれを用いた液中微粒子の捕捉観察方法 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims description 14
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Abstract
【解決手段】遠心ろ過装置は、液体をろ過するろ過膜26と、ろ過膜26を支持するとともに、液体が滞留する液室27をろ過膜26とともに形成するカートリッジ25と、回転中心Cの周りを回転し、ろ過膜26が回転中心Cに関して液室27の外側に位置するようにカートリッジ25を支持する回転部材14と、を有し、回転部材14は液室27と連通する流路を有し、流路の液体との接液部の少なくとも一部がチタンまたはチタン合金で形成されている。
【選択図】図3
Description
第1〜第4の接液部51〜54にチタン合金を用いた遠心ろ過装置に超純水を供給し、ろ過膜で超純水中に存在する粒径10nm以上の微粒子を捕捉(サンプリング)した。ろ過膜には陽極酸化膜(孔径10nm)を使用した。約1ヶ月間サンプリングを行った後、ろ過膜を遠心ろ過装置から取り出し、膜面上に捕捉された微粒子をSEM及びEDXにて観察、計測、分析した。また、比較例として、ステンレス製の電解研磨された接液部を有することを除いて同一構成の遠心ろ過装置を使用し、実施例と同様にして同じ超純水中に存在する粒径10nm以上の微粒子をろ過膜で捕捉し、捕捉した微粒子をSEM及びEDXにて観察、計測、分析した。
2 遠心ろ過器
14 回転部材
15 ろ過器本体
16 チャンバ
18 ケーシング
20 連結棒(回転手段)
26 ろ過膜
27 液室
28 液体供給流路
29 排水流路
30 余剰液排水管
31 液体供給管
44 冷却機構
45 空間
51 第1の接液部
52 第2の接液部
53 第3の接液部
54 第4の接液部
C 回転中心軸
Claims (10)
- 液体をろ過するろ過膜と、
前記ろ過膜を支持するとともに、前記液体が滞留する液室を前記ろ過膜とともに形成するカートリッジと、
回転中心の周りを回転し、前記ろ過膜が前記回転中心に関して前記液室の外側に位置するように前記カートリッジを支持する回転部材と、を有し、
前記回転部材は前記液室と連通する流路を有し、前記流路の前記液体との接液部の少なくとも一部がチタンまたはチタン合金で形成されている、遠心ろ過装置。 - 前記回転部材は、前記カートリッジを支持する支持部材と、前記支持部材との間に空間を介して位置し、前記液体を前記空間に供給する液体供給管と、前記液体供給管の外側で前記支持部材に固定され、前記液体供給管との間に前記液体の排出路を形成する液体排出管と、を有し、
前記支持部材は、前記液室と前記空間とを接続し、前記液体を前記液室に供給する液体供給流路と、前記液室と前記空間とを接続し、前記液室の前記液体を前記空間に排水する排水流路と、を有し、
前記液体供給流路の前記液体との第1の接液部と、前記排水流路の前記液体との第2の接液部と、前記液体排出管の前記液体との第3の接液部と、前記支持部材の前記空間に面する第4の接液部の少なくともいずれかがチタンまたはチタン合金で形成されている、請求項1に記載の遠心ろ過装置。 - 前記第1〜第4の接液部はチタン含有量が70%以上のチタン合金からなる、請求項2に記載の遠心ろ過装置。
- 前記第1〜第4の接液部はチタン含有量が88%以上のチタン合金からなる、請求項2に記載の遠心ろ過装置。
- 前記第1〜第4の接液部はチタン含有量が99%以上のチタン合金または純チタンからなる、請求項2に記載の遠心ろ過装置。
- 液体をろ過するろ過膜と、
前記ろ過膜を支持するとともに、前記液体が滞留する液室を前記ろ過膜とともに形成するカートリッジと、
回転中心の周りを回転し、前記ろ過膜が前記回転中心に関して前記液室の外側に位置するように前記カートリッジを支持する回転部材と、を有し、
前記回転部材は前記液室と連通する流路を有し、前記流路の前記液体との接液部の少なくとも一部が、孔食指数が25のステンレス鋼より孔食が発生しにくい金属で形成されている、遠心ろ過装置。 - 前記回転部材は、前記カートリッジを支持する支持部材と、前記支持部材との間に空間を介して位置し、前記液体を前記空間に供給する液体供給管と、前記液体供給管の外側で前記支持部材に固定され、前記液体供給管との間に前記液体の排出路を形成する液体排出管と、を有し、
前記支持部材は、前記液室と前記空間とを接続し、前記液体を前記液室に供給する液体供給流路と、前記液室と前記空間とを接続し、前記液室の前記液体を前記空間に排水する排水流路と、を有し、
前記液体供給流路の前記液体との第1の接液部と、前記排水流路の前記液体との第2の接液部と、前記液体排出管の前記液体との第3の接液部と、前記支持部材の前記空間に面する第4の接液部の少なくともいずれかが、孔食指数が25のステンレス鋼より孔食が発生しにくい金属で形成されている、請求項6に記載の遠心ろ過装置。 - 請求項1から7のいずれか1項に記載の遠心ろ過装置を用いて、前記ろ過膜の膜面に前記液体中の微粒子を捕捉し観察することを含む、液中微粒子の捕捉観察方法。
- 前記微粒子の観察は光学顕微鏡、走査型電子顕微鏡、透過電子顕微鏡、原子間力顕微鏡のいずれかを用いて、またはエネルギー分散型X線分析法、電子エネルギー損失分光法、X線光電子分光法のいずれかによって行われる、請求項8に記載の液中微粒子の捕捉観察方法。
- 前記液体が、電子部品製造に使用される材料またはその原料若しくは中間体である、請求項8または9に記載の液中微粒子の捕捉観察方法。
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JP2017016967A JP7118590B2 (ja) | 2017-02-01 | 2017-02-01 | 遠心ろ過器とこれを用いた液中微粒子の捕捉観察方法 |
KR1020217013317A KR20210054039A (ko) | 2017-02-01 | 2018-01-10 | 원심 여과기와 이것을 이용한 액중 미립자의 포착 관찰 방법 |
PCT/JP2018/000352 WO2018142858A1 (ja) | 2017-02-01 | 2018-01-10 | 遠心ろ過器とこれを用いた液中微粒子の捕捉観察方法 |
US16/482,467 US11179680B2 (en) | 2017-02-01 | 2018-01-10 | Centrifugal filtration device and method of capturing and observing fine particles in liquid using the same |
CN201880009114.9A CN110248738B (zh) | 2017-02-01 | 2018-01-10 | 离心过滤装置和使用其在液体中捕获和观察细颗粒的方法 |
KR1020197025189A KR20190108614A (ko) | 2017-02-01 | 2018-01-10 | 원심 여과기와 이것을 이용한 액중 미립자의 포착 관찰 방법 |
TW107102620A TWI735735B (zh) | 2017-02-01 | 2018-01-25 | 離心過濾器及利用該離心過濾器的液體中微粒子之捕捉觀察方法 |
JP2021064423A JP2021107078A (ja) | 2017-02-01 | 2021-04-05 | 遠心ろ過器とこれを用いた液中微粒子の捕捉観察方法 |
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CN112456574A (zh) * | 2020-11-03 | 2021-03-09 | 天长市京发铝业有限公司 | 一种铝板氧化废液回收处理装置 |
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CN112206930B (zh) * | 2020-09-10 | 2022-03-08 | 四川行之智汇知识产权运营有限公司 | 离心式血液分离装置 |
CN114226083B (zh) * | 2021-11-17 | 2023-03-28 | 浙江大学 | 基于转化热源机理的超重力离心装置温控系统 |
CN118359247B (zh) * | 2024-06-19 | 2024-10-01 | 中国重型机械研究院股份公司 | 一种钛及钛合金抛磨污水处理装置 |
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- 2018-01-10 US US16/482,467 patent/US11179680B2/en active Active
- 2018-01-10 CN CN201880009114.9A patent/CN110248738B/zh active Active
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KR20210054039A (ko) | 2021-05-12 |
TWI735735B (zh) | 2021-08-11 |
JP7118590B2 (ja) | 2022-08-16 |
JP2021107078A (ja) | 2021-07-29 |
US11179680B2 (en) | 2021-11-23 |
CN110248738B (zh) | 2022-03-22 |
CN110248738A (zh) | 2019-09-17 |
KR20190108614A (ko) | 2019-09-24 |
WO2018142858A1 (ja) | 2018-08-09 |
TW201836705A (zh) | 2018-10-16 |
US20200003661A1 (en) | 2020-01-02 |
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