JPH03228814A - Production of activated carbon sheet - Google Patents
Production of activated carbon sheetInfo
- Publication number
- JPH03228814A JPH03228814A JP2023384A JP2338490A JPH03228814A JP H03228814 A JPH03228814 A JP H03228814A JP 2023384 A JP2023384 A JP 2023384A JP 2338490 A JP2338490 A JP 2338490A JP H03228814 A JPH03228814 A JP H03228814A
- Authority
- JP
- Japan
- Prior art keywords
- activated carbon
- sheet
- fluororesin
- kneading
- fibrillating
- 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.)
- Pending
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000004898 kneading Methods 0.000 claims abstract description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000002245 particle Substances 0.000 claims abstract description 7
- 238000001179 sorption measurement Methods 0.000 abstract description 26
- 238000011109 contamination Methods 0.000 abstract description 7
- 239000000835 fiber Substances 0.000 abstract description 7
- -1 polytetrafluoroethylene Polymers 0.000 abstract description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 abstract description 5
- 239000004810 polytetrafluoroethylene Substances 0.000 abstract description 5
- 238000000465 moulding Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 239000011347 resin Substances 0.000 abstract description 3
- 229920005989 resin Polymers 0.000 abstract description 3
- 239000002033 PVDF binder Substances 0.000 abstract description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 abstract description 2
- 238000010008 shearing Methods 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- RBTBFTRPCNLSDE-UHFFFAOYSA-N 3,7-bis(dimethylamino)phenothiazin-5-ium Chemical compound C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 RBTBFTRPCNLSDE-UHFFFAOYSA-N 0.000 description 4
- 229960000907 methylthioninium chloride Drugs 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 2
- 235000013162 Cocos nucifera Nutrition 0.000 description 2
- 244000060011 Cocos nucifera Species 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 2
- 239000002156 adsorbate Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 229910052740 iodine Inorganic materials 0.000 description 2
- 239000011630 iodine Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229920001410 Microfiber Polymers 0.000 description 1
- 235000018936 Vitellaria paradoxa Nutrition 0.000 description 1
- JAWMENYCRQKKJY-UHFFFAOYSA-N [3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-ylmethyl)-1-oxa-2,8-diazaspiro[4.5]dec-2-en-8-yl]-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]methanone Chemical group N1N=NC=2CN(CCC=21)CC1=NOC2(C1)CCN(CC2)C(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F JAWMENYCRQKKJY-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003738 black carbon Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 206010061592 cardiac fibrillation Diseases 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002600 fibrillogenic effect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 238000007652 sheet-forming process Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、粉末活性炭の吸着性能を保持した高機能性の
活性炭シートを製造する方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for producing a highly functional activated carbon sheet that maintains the adsorption performance of powdered activated carbon.
吸着剤として汎用されている活性炭は、粉末、粒状、繊
維状などの形態で製造される。これらのうち、粉末およ
び粒状の活性炭は本質的にカーボンの集合体であるため
、汚染性があって取扱いに不便である。この黒炭素繊維
を活性化して得られる繊維状の活性炭は、汚染性が少な
いうえに可撓性があるためハンドリングに至便であるが
、吸着容量が小さいという性能上の欠点がある。Activated carbon, which is commonly used as an adsorbent, is produced in the form of powder, granules, fibers, etc. Among these, powdered and granular activated carbon are essentially aggregates of carbon, so they are polluting and inconvenient to handle. The fibrous activated carbon obtained by activating this black carbon fiber is easy to handle because it has little contamination and is flexible, but it has a performance disadvantage in that it has a small adsorption capacity.
粉末活性炭は吸着能に優れているため、その性能を保持
したままシート状に形成することができれば用途範囲が
著しく拡大する要素がある。Powdered activated carbon has excellent adsorption ability, so if it could be formed into a sheet while maintaining its performance, the range of its uses would be significantly expanded.
従来、粉末活性炭を利用したシートとしては、例えば陽
イオン無機繊維、活性炭粉末およびアニオン性バインダ
ーを必須成分とし、その他必要に応じて適宜の副材料を
添加して得られる分散スラリーを湿式抄紙法で抄造する
方法（特開昭５６−４８２４２号公報）、粉末活性炭を
極細繊維織編物層の中間に不離一体構造として介在させ
たシート構造物および製造方法（特開昭６２−２８９６
５９号公報）が提案されている。Conventionally, sheets using powdered activated carbon are made by using a wet paper-making method to obtain a dispersion slurry that contains cationic inorganic fibers, activated carbon powder, and an anionic binder as essential components, and other appropriate auxiliary materials are added as necessary. Paper-making method (Japanese Unexamined Patent Publication No. 56-48242); Sheet structure and manufacturing method in which powdered activated carbon is interposed between ultrafine fiber woven and knitted layers as an inseparable integral structure (Japanese Unexamined Patent Publication No. 62-2896)
No. 59) has been proposed.
しかしながら、特開昭５６−４８２４２号の方法による
ものは粉末活性炭の含有量が少ない関係で破過（吸着平
衡）寿命が短く、また特開昭６２−２８９６５９号のシ
ート構造物はガス臭気や有害蒸気の吸着を対象としてい
るため液相での使用に難点がある。However, the method of JP-A-56-48242 has a short breakthrough (adsorption equilibrium) life due to the small content of powdered activated carbon, and the sheet structure of JP-A-62-289,659 has a gas odor and harmful Because it targets vapor adsorption, there are difficulties in using it in the liquid phase.
本発明者はこれら従来技術の欠点を解消するため、活性
炭粉末とフィブリル化性のフッ素樹脂との配合物に水、
アルコール等の混練助剤を加えてフッ素樹脂がフィブリ
ル化するまで混練したのちシートに形成する活性炭シー
トの製造方法を既に開発した（特願平１−２６０８９６
号）。In order to eliminate these drawbacks of the prior art, the present inventor added water to a blend of activated carbon powder and fibrillating fluororesin.
We have already developed a method for producing an activated carbon sheet in which a fluororesin is kneaded with a kneading aid such as alcohol until fibrillated and then formed into a sheet (Japanese Patent Application No. 1-260896).
issue).
前記した先願技術（特願平１−２６０８９６号）によれ
ば、粉末活性炭の高吸着能を損ねずにシート化された気
液、高低温での使用が可能で、優れた非汚染性、可撓性
を有する活性炭シートを製造することが可能となる。し
かしながら、シート化の工程にロール成形手段を用いる
場合には、シート組織が高密度化するため吸着に際して
吸着質を加圧状態で通過させる必要が生じ、実用性の面
で問題点が認められた。According to the above-mentioned prior art (Japanese Patent Application No. 1-260896), it is possible to use sheet-formed gas-liquid at high and low temperatures without impairing the high adsorption capacity of powdered activated carbon, and it has excellent non-contamination properties. It becomes possible to manufacture a flexible activated carbon sheet. However, when roll forming means is used in the process of forming a sheet, the sheet structure becomes highly dense, making it necessary to pass the adsorbate under pressure during adsorption, which poses a problem in terms of practicality. .
本発明は、先願技術のシート化工程を抄紙法でおこなう
と共に引続き特定条件で熱圧処理を施すと、シート組織
の密度が低下して常圧下での気液吸着が円滑に進行する
事実を確認して開発に至ったものである。The present invention utilizes the fact that when the sheet forming process of the prior art is carried out using a papermaking method and then heat-pressure treatment is subsequently applied under specific conditions, the density of the sheet structure decreases and gas-liquid adsorption under normal pressure progresses smoothly. This was confirmed and developed.
したがって、本発明の目的は、先願技術（特願平１−２
６０８９６号）を改良して粉末活性炭の高吸着性能を損
ねずに常圧下での吸着操作が可能であり、同時に優れた
非汚染性、可撓性を備える活性炭シートの製造方法を提
供するにある。Therefore, the object of the present invention is to solve the prior art (Patent Application No. 1-2
An object of the present invention is to provide a method for producing an activated carbon sheet that enables adsorption operation under normal pressure without impairing the high adsorption performance of powdered activated carbon, and at the same time has excellent non-contamination properties and flexibility. .
上記の目的を達成するための本発明による活性炭シート
の製造方法は、粒度５０μｍ以下の活性炭粉末１００重
量部にフィブリル化性のフッ素樹脂１〜１０重量部を配
合し、水または／およびアルコールを混練助剤として前
記フン素樹脂がフィブリル化するまで混練したのち抄紙
法を用いてシートに成形し、次いで温度２５０℃以上、
圧力１０ｋｇ／ｃｍ２以上の条件により熱圧処理するこ
とを構成上の特徴とする。The method for manufacturing an activated carbon sheet according to the present invention to achieve the above object is to blend 1 to 10 parts by weight of a fibrillating fluororesin to 100 parts by weight of activated carbon powder with a particle size of 50 μm or less, and knead the mixture with water or/and alcohol. After kneading the fluorine resin as an auxiliary agent until it becomes fibrillated, it is formed into a sheet using a papermaking method, and then heated at a temperature of 250°C or higher.
A structural feature is that the heat and pressure treatment is performed under conditions of a pressure of 10 kg/cm2 or more.
本発明の吸着基材となる活性炭粉末には、例えば椰子殻
、おが屑、パルプ、石炭、カーボンブラックなどの原料
炭を賦活して作製した通常の活性炭を粒度５０μｍ以下
に微粉砕したものが用いられる。この粒度が５０μｍを
上潮ると、フッ素樹脂の円滑なフィブリル化が阻害され
て得られるシートが脆弱となる。The activated carbon powder used as the adsorption base material of the present invention is made by pulverizing ordinary activated carbon made by activating raw carbon such as coconut shell, sawdust, pulp, coal, carbon black, etc. to a particle size of 50 μm or less. . When the particle size exceeds 50 μm, smooth fibrillation of the fluororesin is inhibited and the resulting sheet becomes brittle.
フィブリル化性のフッ素樹脂とは、混練処理によって繊
維状に転化するフッ素樹脂を指し、このような性質をも
つフッ素樹脂の種類としてはポリテトラフルオロエチレ
ン、ポリトリフルオロエチレン、ポリ弗化ビニリデンな
どが挙げられる。A fibrillating fluororesin refers to a fluororesin that is converted into a fibrous form through a kneading process. Types of fluororesin with this property include polytetrafluoroethylene, polytrifluoroethylene, and polyvinylidene fluoride. Can be mentioned.
フィブリル化性のフッ素樹脂を活性炭粉末１００重量部
当たり１〜１０重量部の範囲で配合する理由は、この配
合量が１重量部未満では繊維網の絡合形成が不十分とな
ってシートが成形できず、また１０重量部を越えると吸
着容量を低下させるとともに、シート表面が撥水性とな
って濡れを悪化させるからである。The reason why fibrillating fluororesin is blended in the range of 1 to 10 parts by weight per 100 parts by weight of activated carbon powder is that if the blending amount is less than 1 part by weight, the entanglement formation of the fiber network will be insufficient and the sheet will not be formed. If the amount exceeds 10 parts by weight, the adsorption capacity will decrease and the sheet surface will become water repellent, resulting in poor wetting.
これら成分には混練助剤として水、アルコールまたはこ
れらの混合物を添加して混練する。混練助剤の添加量は
、粉末活性炭１００重量部当たり３０〜８０重量部の範
囲に設定することが好適である。These components are kneaded with water, alcohol, or a mixture thereof added as a kneading aid. The amount of the kneading aid added is preferably set in the range of 30 to 80 parts by weight per 100 parts by weight of powdered activated carbon.
活性炭粉末、フッ素樹脂および混練助剤は、フッ素樹脂
がフィブリル化するまで混練する。混練処理に使用され
る装置には限定はないが、剪断応力下で混練をおこなう
ことが望ましい。The activated carbon powder, fluororesin, and kneading aid are kneaded until the fluororesin is fibrillated. Although there are no limitations on the equipment used for the kneading process, it is desirable to perform the kneading under shear stress.
得られた混練ペーストは、−旦アルコールと共にミキサ
ーのような攪拌装置により湿式粉砕したのち通常の抄紙
法を用いてシートに成形する。The obtained kneaded paste is wet-pulverized together with alcohol using a stirring device such as a mixer, and then formed into a sheet using a conventional paper-making method.
次いで抄造シートを乾燥し、更に温度２５０℃以上、圧
力１０ｋｇ／ｃｍ”以上の条件により熱圧処理を施す。Next, the paper sheet is dried and further subjected to heat-pressure treatment at a temperature of 250° C. or higher and a pressure of 10 kg/cm” or higher.
この熱圧処理は抄造シートを強固にするために必要な工
程で、前記の温度および圧力を下潮る熱圧条件ではシー
トの強化が充分に進まない。This heat-pressing treatment is a necessary step to strengthen the paper-made sheet, and the sheet cannot be sufficiently strengthened under hot-pressure conditions below the above-mentioned temperature and pressure.
このようにして得られる活性炭シートは、厚さが４００
μｍ前後の薄膜状でかさ密度は概ね０．５ｇ／ｃｃ未満
の粗密組織を備えている。The activated carbon sheet thus obtained has a thickness of 400 mm.
It has a thin film-like structure with a bulk density of about 0.5 g/cc or less.
本発明の製造プロセスによれば、混練工程で直径３〜２
０μｍ長さ１００〜２００μｍ程度の微細繊維に転化し
たフン素樹脂が粉末活性炭と均質に混和した状態で粗密
組織の抄造シートに成形される。According to the manufacturing process of the present invention, in the kneading process, diameters of 3 to 2
Fluorine resin converted into fine fibers with a length of about 0 μm and a length of about 100 to 200 μm is homogeneously mixed with powdered activated carbon and formed into a sheet having a coarse and dense structure.
この段階における抄造シートは極めて脆弱であるが、次
工程の熱圧処理によりフッ素樹脂繊維の絡み合った網目
内に活性炭組織が捕捉保持され、体強固な結合形態が形
成される。Although the paper sheet at this stage is extremely fragile, the activated carbon structure is captured and held within the tangled network of fluororesin fibers by the heat-pressure treatment in the next step, forming a solid bond.
このように形成された粗密組織で強固なシー１〜形態が
、粉末活性炭の高い吸着能を損ねずに取扱い易い非汚染
性および可撓性を付与するために寄与し、また、微細繊
維を構成するフッ素樹脂の優れた耐高温性、耐薬品性の
作用により気相、液相あるいは高温、低温等の条件に影
響されない適用が可能となる。The coarse-grained and strong shea form thus formed contributes to imparting non-contamination and flexibility for easy handling without impairing the high adsorption capacity of powdered activated carbon, and also constitutes fine fibers. Due to the excellent high temperature resistance and chemical resistance of fluororesin, it is possible to apply it without being affected by gas phase, liquid phase, high temperature, low temperature, etc. conditions.
［実施例］ 以下、本発明の実施例を比較例と対比して説明する。[Example] Examples of the present invention will be described below in comparison with comparative examples.
実施例１
粒径３０〜４０μｍに微粉砕した椰子殻皮系の活性炭粉
末１００重量部に対し、フィブリル化性のポリテトラフ
ルオロエチレン（ＰＴＦＥ）粉末〔三片デュポンフロロ
ケミカル■製）８重置部を配合した。これに混練助剤と
して活性炭粉末１００重量部当たり６３重量部の水を添
加してパブミル型混練機に投入し、フン素樹脂がフィブ
リル化するまで充分に攪拌混合した。Example 1 8 parts of fibrillating polytetrafluoroethylene (PTFE) powder [manufactured by DuPont DuPont Fluorochemicals ■] were placed on 100 parts by weight of coconut shell-based activated carbon powder finely pulverized to a particle size of 30 to 40 μm. was blended. To this, 63 parts by weight of water per 100 parts by weight of activated carbon powder was added as a kneading aid, and the mixture was charged into a pub mill type kneader and thoroughly stirred and mixed until the fluororesin was fibrillated.
ついで、混練ペーストを５０ｖｏ１％相当量のエタノー
ルとともにジューサーミキサーに入れ、攪拌操作により
湿式粉砕したのち水に分散させてシト状に抄紙した。抄
造シートを８０℃の乾燥皿中で乾燥し、引き続きモール
ド成形装置を用いて温度３００℃１圧力２５ｋｇ／ｃｍ
２の条件で熱圧処理した。Next, the kneaded paste was put into a juicer mixer together with ethanol equivalent to 50 vol 1%, wet-pulverized by a stirring operation, and then dispersed in water to form paper into sheets. The paper sheet was dried in a drying dish at 80°C, and then molded using a molding machine at a temperature of 300°C and a pressure of 25 kg/cm.
Heat and pressure treatment was performed under the following conditions.
得られた活性炭シートは、厚ざ約４００μｍの薄膜状で
、ハンドリングにより粉末が飛散することがない良好な
非汚染性と容易に変形する可撓性を備えるものであった
。The obtained activated carbon sheet was in the form of a thin film with a thickness of approximately 400 μm, and had good non-contamination properties such that powder did not scatter when handled, and flexibility to easily deform.
その物性は、かさ密度０．３５ｇ／ｃｃ 、引張り強さ
１５ｋｇｆ／ｃｍ２、伸び１０％、圧力損失０．２５ｋ
ｇ／ｃｍ２であり、吸着性能は、比表面積１１２０ｍ２
／ｇ 、メチレンブルー吸着量３２５ｍｒ；／ｇ、よう
素吸着量１２２０ｍｇ／ｇで、組織的に低いかさ密度な
らびに圧力損失と優れた吸着性能を具備するものであっ
た。Its physical properties include bulk density 0.35g/cc, tensile strength 15kgf/cm2, elongation 10%, and pressure loss 0.25k.
g/cm2, and the adsorption performance has a specific surface area of 1120m2.
/g, methylene blue adsorption amount: 325 mr; /g, iodine adsorption amount: 1220 mg/g, and had structurally low bulk density and pressure loss, and excellent adsorption performance.
次に、直径７０ｍｍのガラス管内に固定したステンレス
網（２５０μｍ）上に上記の活性炭シート１枚を敷き、
さらにその上に粒径２００メツシユのガラスピーズを充
填した。この管の上部から脱気槽（８０℃）、冷却槽（
２０℃）および恒温槽（２５℃）を順次に通過さゼたメ
チレンブルー溶液（Ｃｏ ＝１．Ｏｍｇ／りを通水し、
一定時間毎にガラス管下部から採取した試験液を６７０
ｎｍの波長で吸光分析した。なお、この場合の空塔速度
（υ）は１．０ｃｍ／ｓｅｃ、であった。Next, one activated carbon sheet was placed on a stainless steel mesh (250 μm) fixed in a glass tube with a diameter of 70 mm.
Furthermore, glass beads having a particle size of 200 mesh were filled thereon. From the top of this tube, there is a deaeration tank (80℃), a cooling tank (
A methylene blue solution (Co = 1.0 mg/liter) was passed through a constant temperature bath (20°C) and a constant temperature bath (25°C),
The test liquid taken from the bottom of the glass tube at regular intervals was
Absorption analysis was performed at a wavelength of nm. Note that the superficial velocity (υ) in this case was 1.0 cm/sec.
得られた吸着破過曲線は図示のとおりで、粉末活性炭と
同等の吸着性能であることが認められた。The adsorption breakthrough curve obtained was as shown in the figure, and it was confirmed that the adsorption performance was equivalent to that of powdered activated carbon.
実施例２
実施例１のボリテｌラフル」ロエチレン（ＰＴＦＥ）の
添加量を２重量部に変えたほかは全て同一の条件および
工程を用いて活性炭ソー１を製造した。Example 2 Activated carbon saw 1 was manufactured using the same conditions and steps as in Example 1, except that the amount of PTFE added was changed to 2 parts by weight.
比較例１
実施例２の製造工程を抄紙成形後の乾燥段階で完了させ
、本発明の熱圧処理を施さない工程により活性炭ソー１
を作製した。Comparative Example 1 Activated carbon saw 1 was produced by completing the manufacturing process of Example 2 at the drying stage after paper forming, and by the process of the present invention without heat-pressure treatment.
was created.
比較例２
実施例２のシーＩ−成形工程を、等速二木ロール型成形
機を用い、児謁、１ｒｐｍの回転条件で１０回反復して
通過さゼるロール成形法に変え、成形ソートを８０℃の
温度で乾燥して厚さ約４００μｍの活性炭シーＩ・を作
製した。Comparative Example 2 The Sea I-molding process of Example 2 was changed to a roll-forming method in which passing was repeated 10 times under the rotation condition of 1 rpm using a constant speed Niki roll-type machine, and the molding sorting was carried out. was dried at a temperature of 80° C. to produce activated carbon sheet I with a thickness of about 400 μm.
実施例１、比較例１および２で得られた各活性炭シート
の物性、吸着性能等を対比して表１に示した。Table 1 shows a comparison of the physical properties, adsorption performance, etc. of each activated carbon sheet obtained in Example 1 and Comparative Examples 1 and 2.
表 １ 表注：１）メチレンブルー ２） よう素。table 1 Table note: 1) Methylene blue 2) Iodine.
表１の結果から、実施例２の活性炭シートの物性および
吸着性能は比較例２（ロール成形例）に比べて若干減退
するが、かさ密度が低下する関係で圧力損失値が著しく
下がる。したがって。吸着質に加圧する必要のない常圧
吸着が可能となり、実用性が向上する。熱圧処理工程を
施さない比較例１ではシートの強度特性が低く、容易に
破損する組織しか得られない。From the results in Table 1, the physical properties and adsorption performance of the activated carbon sheet of Example 2 are slightly reduced compared to Comparative Example 2 (roll forming example), but the pressure loss value is significantly reduced due to the decrease in bulk density. therefore. Normal pressure adsorption without the need to pressurize the adsorbate becomes possible, improving practicality. In Comparative Example 1 in which the heat-pressure treatment step was not performed, the strength of the sheet was low, and a structure that was easily damaged was obtained.
本発明によれば、粉末活性炭と同等の高吸着性能を備え
、気相、液相、高低温下の条件下で使用が可能であり、
良好な非汚染性と可撓性を有するうえに常圧下の吸着操
作が可能な粗密組織の活性炭シートを製造することがで
きる。According to the present invention, it has high adsorption performance equivalent to powdered activated carbon and can be used in gas phase, liquid phase, and under high and low temperature conditions,
It is possible to produce an activated carbon sheet with a coarse structure that has good non-contamination properties and flexibility, and is also capable of adsorption operation under normal pressure.
したがって、例えば、水道水をはじめとする各種液体の
浄化精製、煙草、調理等から発生する煙ガスの浄化など
気液を対象とした多様の吸着用として有用である。Therefore, it is useful for a variety of adsorption applications targeting gas and liquids, such as purification and purification of various liquids including tap water, and purification of smoke gases generated from smoking, cooking, and the like.
１
図は本発明の活性炭シートを用いたメチレンブルー水溶
液の破過曲線である。Figure 1 shows a breakthrough curve of a methylene blue aqueous solution using the activated carbon sheet of the present invention.
Claims (1)
ブリル化性のフッ素樹脂１〜１０重量部を配合し、水ま
たは／およびアルコールを混練助剤として前記フッ素樹
脂がフィブリル化するまで混練したのち抄紙法を用いて
シートに成形し、次いで温度２５０℃以上、圧力１０ｋ
ｇ／ｃｍ＾２以上の条件により熱圧処理することを特徴
とする活性炭シートの製造方法。1. 1 to 10 parts by weight of a fibrillating fluororesin is blended with 100 parts by weight of activated carbon powder with a particle size of 50 μm or less, and kneaded with water or/and alcohol as a kneading aid until the fluororesin fibrillates, followed by a papermaking method. Formed into a sheet using
A method for producing an activated carbon sheet, characterized by carrying out heat and pressure treatment under conditions of g/cm^2 or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2023384A JPH03228814A (en) | 1990-02-01 | 1990-02-01 | Production of activated carbon sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2023384A JPH03228814A (en) | 1990-02-01 | 1990-02-01 | Production of activated carbon sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03228814A true JPH03228814A (en) | 1991-10-09 |
Family
ID=12109030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2023384A Pending JPH03228814A (en) | 1990-02-01 | 1990-02-01 | Production of activated carbon sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03228814A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07194921A (en) * | 1993-12-28 | 1995-08-01 | Toho Rayon Co Ltd | Adsorption element for electric appliance |
| JPWO2010150534A1 (en) * | 2009-06-23 | 2012-12-06 | クラレケミカル株式会社 | Liquid-permeable capacitor, deionized water production method, and deionized water production apparatus |
-
1990
- 1990-02-01 JP JP2023384A patent/JPH03228814A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07194921A (en) * | 1993-12-28 | 1995-08-01 | Toho Rayon Co Ltd | Adsorption element for electric appliance |
| JPWO2010150534A1 (en) * | 2009-06-23 | 2012-12-06 | クラレケミカル株式会社 | Liquid-permeable capacitor, deionized water production method, and deionized water production apparatus |
| JP5687620B2 (en) * | 2009-06-23 | 2015-03-18 | クラレケミカル株式会社 | Liquid-permeable capacitor, deionized water production method, and deionized water production apparatus |
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