CN102921212A - Filtering device for chemical reagent of hydrogen peroxide - Google Patents
Filtering device for chemical reagent of hydrogen peroxide Download PDFInfo
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- CN102921212A CN102921212A CN2011102245743A CN201110224574A CN102921212A CN 102921212 A CN102921212 A CN 102921212A CN 2011102245743 A CN2011102245743 A CN 2011102245743A CN 201110224574 A CN201110224574 A CN 201110224574A CN 102921212 A CN102921212 A CN 102921212A
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- hydrogen peroxide
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- chemical reagent
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Abstract
The invention relates to a chemical filtering device, and in particularly relates to a filtering device for a chemical reagent of hydrogen peroxide. The filtering device for a chemical reagent of hydrogen peroxide has a stainless steel filter housing which is manufactured by two-stage polishing; a folded filter core is made of highly crystallized PP; each bonding part of the filter core is formed by hot melting by ultrasonic wave; a housing sealing ring is made of a fluororubber ring. The filtering device of the invention improves the stability of the product hydrogen peroxide by improving the fineness of the contact surface between the filter housing and the product, selecting the filter core material with a high crystallization degree, and using no binders.
Description
Technical field
The present invention relates to chemical filtration unit, be specially the filter plant of chemical reagent hydrogen peroxide.
Background technology
Adopt exchange resin method to produce the chemical reagent hydrogen peroxide, resin chip in the exchange process generation, the stability of product caused seriously influence, therefore, process in the mode that the finishing operation of product all will be taked to filter, the quality of filter effect and the selection of filter directly affect the stability of product.The surface that impurity in the product (mechanical admixture or metal ion), metallic filter outer casing inner wall are coarse and oxidation of high molecule plastic filter core etc. all are to cause the product factors of instability.The metal current glossing, single machine glazed finish can not make burnishing surface produce stable passivating film, also need carry out Passivation Treatment; Single electrochemical polish although can make burnishing surface produce stable passivating film, does not need carrying out Passivation Treatment, but can not remove the rough and uneven in surface degree that the burnishing surface macroscopic view exists.Low by inwall fineness, without the stainless steel casing of continous-stable passivating film and the foldable filter element that uses binding agent, low-crystallinity PP to make, the hydrogen peroxide filter of both assemblings will cause the decomposition of hydrogen peroxide, make the stability decreases of hydrogen peroxide after filtering.
Summary of the invention
The present invention is directed to above technical problem, a kind of best bright finish is provided, stablizes the stainless steel filter shell of passivating film and the filter plant of the chemical reagent hydrogen peroxide that high crystallization PP foldable filter element forms.
Concrete technical scheme of the present invention is as follows:
The filter plant of chemical reagent hydrogen peroxide, it is characterized in that: filter housing is stainless steel, the two-stage polishing that the stainless steel filter shell adopts, one-level is machine glazed finish, is about to the macroscopical rough and uneven in surface degree that exists in filter cylinder surface and is polished to roughness metric Ra≤0.6-1.6 μ m; Secondary is electrochemical polish, the rough and uneven in surface degree that is about to the microcosmic existence is polished to filter cylinder surface finish measurement value Ra＜0.2-0.6 μ m, and filter core is set in the filter housing, and the filter core material is high crystallization PP, each bond site of filter core all adopts the ultrasonic wave hot melt, and shell sealing ring material is fluorine rubber ring.
Filter adopts the 316L stainless steel casing, the two-stage polishing of employing.One-level is machine glazed finish, and the rough and uneven in surface degree that is about to the macroscopic view existence of filter cylinder surface is polished to roughness metric Ra≤0.6-1.6 μ m; Secondary is electrochemical polish, and the rough and uneven in surface degree that is about to the microcosmic existence is polished to filter cylinder surface finish measurement value Ra＜0.2-0.6 μ m(and forms simultaneously stable passivating film).Filter cylinder after the two-stage polishing is not only highly polished and brightness is also very high.
After filter cylinder cleans decontamination with aqueous surfactant solution, drying up with pure water is clean again, and tackle the formed passivating film of barrel and carry out the Bluepoint check, is qualified without Bluepoint.The filter cylinder of Bluepoint pass the test is cleaned up with pure water again, soak 3-5 time with AR level reagent hydrogen peroxide, each immersion 6h also makes content and the stability detection, detect by chemical reagent GB/T6684-2002 and meet the AR level to steeping the liquid content of hydrogen peroxide, stability press food additives GB22216-2008 detect qualified or 〉=96% only.This process will be noted dustproof and anti-pollution, will prevent especially the pollution of metal ion, alkaloid compound, organic matter, reduzate, and these pollutions will cause the decomposition of hydrogen peroxide, and its stability is descended.
Adopt high crystallization PP foldable filter element can improve oxidative resistance to hydrogen peroxide.Each bond site of filter core all adopts the ultrasonic wave hot melt, does not use binder, and end socket, skeleton supporting layer all adopt high crystallization PP to make, and sealing ring uses fluorine rubber ring.So just increased the tolerance of filter core to hydrogen peroxide, reduced the decomposition of hydrogen peroxide, made the stability enhancing of hydrogen peroxide after filtering.
This filter core is dried up with the dynamic washed twice of pure water, soak 2 times with AR level reagent hydrogen peroxide, each immersion 8-12h also makes content and the stability detection, meets the AR level to steeping the liquid content of hydrogen peroxide by chemical reagent GB/T6684-2002, and it is qualified only that stability is pressed GB22216-2008.
The present invention starts with from selection and processing several respects of solving filter housing and the fineness of product contact-making surface, the formation of stablizing passivating film and filter core, reach measures such as not using adhesive by the fineness that improves filter housing and product contact-making surface and the PP filter core material of selecting high-crystallinity, improve the stability of product hydrogen peroxide.The two-stage polishing is used in conjunction the fineness that can improve burnishing surface, and makes burnishing surface produce stable passivating film, thereby the electrochemical corrosion (such as pitting corrosion) of having avoided the filter inwall to produce is conducive to the filtration production of hydrogen peroxide.
Description of drawings
Fig. 1 is middle filtrator shell section of the present invention structural representation.
Fig. 2 is filter cartridge construction signal among the present invention.
1---filter housing, 2---foldable filter element, 3---filter inlet pipe, 4---filter outlet pipe wherein.
The specific embodiment
The invention will be further described below in conjunction with the specific embodiment.
The filter plant of chemical reagent hydrogen peroxide, it is characterized in that: filter housing is stainless steel, the two-stage polishing that the stainless steel filter shell adopts, one-level is machine glazed finish, is about to the macroscopical rough and uneven in surface degree that exists in filter cylinder surface and is polished to roughness metric Ra≤0.6-1.6 μ m; Secondary is electrochemical polish, the rough and uneven in surface degree that is about to the microcosmic existence is polished to filter cylinder surface finish measurement value Ra＜0.2-0.6 μ m, filter core is set in the filter housing, the foldable filter element material is high crystallization PP, each bond site of filter core all adopts the ultrasonic wave hot melt, and shell sealing ring material is fluorine rubber ring.
Filter adopts the 316L stainless steel casing, the two-stage polishing of employing.One-level is machine glazed finish, and the rough and uneven in surface degree that is about to the macroscopic view existence of filter cylinder surface is polished to roughness metric Ra≤0.6-1.6 μ m; Secondary is electrochemical polish, and the rough and uneven in surface degree that is about to the microcosmic existence is polished to filter cylinder surface finish measurement value Ra＜0.2-0.6 μ m(and forms simultaneously stable passivating film).Filter cylinder after the two-stage polishing is not only highly polished and brightness is also very high.
After filter cylinder cleans decontamination with aqueous surfactant solution, drying up with pure water is clean again, and tackle the formed passivating film of barrel and carry out the Bluepoint check, is qualified without Bluepoint.The filter cylinder of Bluepoint pass the test is cleaned up with pure water again, soak 3-5 time with AR level reagent hydrogen peroxide, each immersion 6h also makes content and the stability detection, detect by chemical reagent GB/T6684-2002 and meet the AR level to steeping the liquid content of hydrogen peroxide, stability press food additives GB22216-2008 detect qualified or 〉=96% only.This process will be noted dustproof and anti-pollution, will prevent especially the pollution of metal ion, alkaloid compound, organic matter, reduzate, and these pollutions will cause the decomposition of hydrogen peroxide, and its stability is descended.
Adopt high crystallization PP foldable filter element can improve oxidative resistance to hydrogen peroxide.Each bond site of filter core all adopts the ultrasonic wave hot melt, does not use binder, and end socket, skeleton supporting layer all adopt high crystallization PP to make, and sealing ring uses fluorine rubber ring.So just increased the tolerance of filter core to hydrogen peroxide, reduced the decomposition of hydrogen peroxide, made the stability enhancing of hydrogen peroxide after filtering.
This filter core is dried up with the dynamic washed twice of pure water, soak 2 times with AR level reagent hydrogen peroxide, each immersion 8-12h also makes content and the stability detection, meets the AR level to steeping the liquid content of hydrogen peroxide by chemical reagent GB/T6684-2002, and it is qualified only that stability is pressed GB22216-2008.
Claims (2)
1. the filter plant of chemical reagent hydrogen peroxide, it is characterized in that: filter housing is stainless steel, the two-stage polishing that the stainless steel filter shell adopts, one-level is machine glazed finish, is about to the macroscopical rough and uneven in surface degree that exists in filter cylinder surface and is polished to roughness metric Ra≤0.6-1.6 μ m; Secondary is electrochemical polish, the rough and uneven in surface degree that is about to the microcosmic existence is polished to filter cylinder surface finish measurement value Ra＜0.2-0.6 μ m, and filter core is set in the filter housing, and the foldable filter element material is high crystallization PP, the filter core bond site adopts the ultrasonic wave hot melt, and shell sealing ring material is fluorine rubber ring.
2. the filter plant of chemical reagent hydrogen peroxide according to claim 1, it is characterized in that: described foldable filter element material is sintered filter core or HMW PE sintered filter core or super high molecular weight PE sintered filter core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102245743A CN102921212A (en) | 2011-08-08 | 2011-08-08 | Filtering device for chemical reagent of hydrogen peroxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102245743A CN102921212A (en) | 2011-08-08 | 2011-08-08 | Filtering device for chemical reagent of hydrogen peroxide |
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| Publication Number | Publication Date |
|---|---|
| CN102921212A true CN102921212A (en) | 2013-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102245743A Pending CN102921212A (en) | 2011-08-08 | 2011-08-08 | Filtering device for chemical reagent of hydrogen peroxide |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4775469A (en) * | 1987-08-12 | 1988-10-04 | Tri-Clover, Inc. | Filter bag sealing device |
| CN1918185A (en) * | 2004-02-13 | 2007-02-21 | 托塔尔石油化学产品研究弗吕公司 | Surface finish of reactor |
| CN101157198A (en) * | 2007-10-31 | 2008-04-09 | 浙江工业大学 | Semi-sessile abrasive grain of plane stainless steel polishing method |
| CN201067558Y (en) * | 2007-07-30 | 2008-06-04 | 广州穗畅生物科技有限公司 | Medical filter |
-
2011
- 2011-08-08 CN CN2011102245743A patent/CN102921212A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4775469A (en) * | 1987-08-12 | 1988-10-04 | Tri-Clover, Inc. | Filter bag sealing device |
| CN1918185A (en) * | 2004-02-13 | 2007-02-21 | 托塔尔石油化学产品研究弗吕公司 | Surface finish of reactor |
| CN201067558Y (en) * | 2007-07-30 | 2008-06-04 | 广州穗畅生物科技有限公司 | Medical filter |
| CN101157198A (en) * | 2007-10-31 | 2008-04-09 | 浙江工业大学 | Semi-sessile abrasive grain of plane stainless steel polishing method |
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Application publication date: 20130213 |