JP2000263040A - Adsorbent molded body and its production - Google Patents
Adsorbent molded body and its productionInfo
- Publication number
- JP2000263040A JP2000263040A JP11069800A JP6980099A JP2000263040A JP 2000263040 A JP2000263040 A JP 2000263040A JP 11069800 A JP11069800 A JP 11069800A JP 6980099 A JP6980099 A JP 6980099A JP 2000263040 A JP2000263040 A JP 2000263040A
- Authority
- JP
- Japan
- Prior art keywords
- adsorbent
- polyolefin
- molded
- molded article
- minutes
- 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.)
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- Water Treatment By Sorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は吸着剤成形体及びそ
の製造方法に関する。さらに詳しくは、吸着剤の表面に
ポリオレフィンの薄いコート層を有する吸着剤成型体で
あって、該ポリオレフィンとしてメルトフローレートが
１ｇ／１０分以下の粘度特性を有するポリオレフィンを
用いて成型した吸着剤成型体及びその製造方法に関す
る。The present invention relates to an adsorbent molded article and a method for producing the same. More specifically, an adsorbent molded article having a thin polyolefin coating layer on the surface of an adsorbent, wherein the molded article is formed using a polyolefin having a melt flow rate of 1 g / 10 min or less as a viscosity characteristic of the polyolefin. The present invention relates to a body and a manufacturing method thereof.
【０００２】[0002]
【従来の技術】活性炭は各種汚染物質の吸着能に優れて
いるので、気相、液相を問わず、脱臭用や浄水用などに
多く使用されているが、活性炭は一般に黒色であり、手
で触れた場合手が汚れたり、摩擦により黒い埃が出るな
どの問題がある。これを解決するものとして、本出願人
は特願平１―５４６７９号（特公平７−９０１６８号）
公報に、活性炭粒子の表面をポリオレフィン樹脂または
ポリアミド樹脂の微粒子の薄層でコートした後、加圧成
形せしめた活性炭成形体を提案した。しかしながら、プ
ラスチック粉末はポリエチレンやポリプロピレンのよう
に疎水性のものが多く、水溶液中で使用する場合はこれ
らのバインダーが水を弾くため、吸着剤と水溶液の接触
が不充分となって吸着剤の機能が必ずしも充分に発揮さ
れないことがあった。2. Description of the Related Art Activated carbon is widely used for deodorization and water purification regardless of gas phase or liquid phase because of its excellent ability to adsorb various contaminants. If touched, there are problems such as dirty hands and black dust coming out due to friction. To solve this problem, the present applicant has filed Japanese Patent Application No. 1-54679 (Japanese Patent Application No. 7-90168).
In the gazette, there has been proposed an activated carbon molded body in which the surface of activated carbon particles is coated with a thin layer of fine particles of a polyolefin resin or a polyamide resin and then molded under pressure. However, plastic powders are often hydrophobic, such as polyethylene and polypropylene, and when used in aqueous solutions, these binders repel water, making the contact between the adsorbent and the aqueous solution inadequate and causing the adsorbent to function. Was not always fully exhibited.
【０００３】本出願人はさらに改良を加え、水溶液中で
も吸着剤が充分接触できるようにプラスチック粉末の表
面を親水化することを試み、プラズマ処理、オゾン処理
などの親水化処理をしたプラスチック粉末をバインダー
として使用する吸着剤成型体を特願平３−２５２９５号
（特開平４−２４３５４３号）公報に提案した。[0003] The present applicant has further improved and tried to make the surface of the plastic powder hydrophilic so that the adsorbent can be sufficiently contacted even in an aqueous solution. An adsorbent molded article used as the above is proposed in Japanese Patent Application No. 3-25295 (JP-A-4-243543).
【０００４】[0004]
【発明が解決しようとする課題】プラスチック粉末をバ
インダーとして成型した吸着剤は吸着容量の低下が少な
く、機械的性質も優れているので、疎水性を改善したこ
の方法によれば、吸着剤の機能をあまり低下させること
のない成型体を得ることが可能である。しかしながら、
上記に提案した成型体では、バインダーとして使用する
プラスチックの流動性が高いため、水溶液中で使用した
場合、吸着剤と水溶液との接触が充分でなく、吸着剤と
しての機能が充分に発揮されないことがあった。また、
その製造方法は親水化処理など煩雑な操作が必要であ
り、しかもこのような処理により活性炭の表面が酸化さ
れ、吸着剤の性能劣化を引き起こすこともあった。した
がって本発明の目的は、手で触れても手が汚れたりせ
ず、摩擦によっても黒い埃が発生せず、吸着剤としての
機能を充分発揮する吸着剤成型体及びその製造方法を提
供することにある。The adsorbent formed by using a plastic powder as a binder has a small decrease in adsorption capacity and excellent mechanical properties. Therefore, according to this method with improved hydrophobicity, the function of the adsorbent is improved. It is possible to obtain a molded body that does not significantly reduce the viscosity. However,
In the molded article proposed above, since the plastic used as a binder has high fluidity, when used in an aqueous solution, the contact between the adsorbent and the aqueous solution is not sufficient, and the function as the adsorbent is not sufficiently exhibited. was there. Also,
The production method requires a complicated operation such as a hydrophilization treatment, and the treatment oxidizes the surface of the activated carbon, sometimes causing deterioration of the performance of the adsorbent. Accordingly, an object of the present invention is to provide an adsorbent molded body that does not stain the hand even when touched by the hand, does not generate black dust due to friction, and sufficiently exhibits the function as an adsorbent, and a method for producing the same. It is in.
【０００５】[0005]
【課題を解決するための手段】本発明者らは、プラスチ
ックの流動性に着目して鋭意検討を重ね、特定の粘度特
性を有するポリオレフィンを使用することにより、上記
目的を達成することができることを見出し、本発明に到
達した。すなわち本発明は、吸着剤の表面にポリオレフ
ィンの薄いコート層を有する吸着剤成型体であって、該
ポリオレフィンはメルトフローレート（ＭＦＲ）が１ｇ
／１０分以下の粘度特性を有するポリオレフィンである
ことを特徴とする吸着剤成型体である。Means for Solving the Problems The present inventors have conducted intensive studies focusing on the fluidity of plastics, and have found that the above object can be achieved by using a polyolefin having a specific viscosity characteristic. Heading, the present invention has been reached. That is, the present invention is an adsorbent molded article having a thin coat layer of polyolefin on the surface of the adsorbent, wherein the polyolefin has a melt flow rate (MFR) of 1 g.
An adsorbent molded article characterized by being a polyolefin having a viscosity characteristic of / 10 minutes or less.
【０００６】本発明のもう一つの発明は、吸着剤及びポ
リオレフィン粉末を混合し、加熱加圧して吸着剤の表面
にポリオレフィンの薄いコート層を有する吸着剤成型体
を製造する方法であって、該ポリオレフィンはＭＦＲが
１ｇ／１０分以下のポリオレフィンであり、該ポリオレ
フィンの融点〜該ポリオレフィンの融点＋３０℃の温度
で加熱、加圧して成型することを特徴とする吸着剤成型
体の製造方法である。Another invention of the present invention is a method for producing an adsorbent molded article having a thin polyolefin coating layer on the surface of an adsorbent by mixing an adsorbent and a polyolefin powder and heating and pressurizing the adsorbent. The polyolefin is a polyolefin having an MFR of 1 g / 10 minutes or less, and is a method for producing a molded adsorbent, which is heated and pressed at a temperature of from the melting point of the polyolefin to the melting point of the polyolefin + 30 ° C.
【０００７】[0007]
【発明の実施の形態】本発明において使用される吸着剤
としては、活性炭、ゼオライト、シリカゲル、イオン交
換樹脂などを例示することができるが、なかでも活性炭
が好ましい。活性炭としては、木炭、石炭、コークス、
ヤシ殻、樹脂、石油ピッチなどを原料として高温で炭化
製造された木質系、石炭系、樹脂系、ピッチ系などの炭
化物を、ガス賦活法、水蒸気賦活法、塩化亜鉛やリン酸
などの薬品で賦活する薬品賦活法などにより賦活したも
のが好ましく使用される。活性炭は、破砕状、粉末状、
粒子状、ペレット状などいずれの形態でも使用すること
ができる。BEST MODE FOR CARRYING OUT THE INVENTION As the adsorbent used in the present invention, activated carbon, zeolite, silica gel, ion exchange resin and the like can be exemplified. Among them, activated carbon is preferable. Activated carbon includes charcoal, coal, coke,
Wood-based, coal-based, resin-based, and pitch-based carbides produced at high temperatures using palm shells, resins, petroleum pitch, etc. as raw materials by gas activation, steam activation, and chemicals such as zinc chloride and phosphoric acid. Those activated by a chemical activation method or the like to be activated are preferably used. Activated carbon is crushed, powdered,
Any form such as a particle form and a pellet form can be used.
【０００８】活性炭の平均粒径は通水時の接触効率、通
水抵抗などの点から１〜１０００μｍ、好ましくは１０
〜５００μｍのものを使用するのが望ましい。また、活
性炭の比表面積は、水中に含まれる有機物の吸着除去や
遊離残留塩素の分解除去効率を損なわない範囲で選択す
ることができ、ＢＥＴ比表面積で３００〜３０００ｍ ２
／ｇ、好ましくは５００〜２５００ｍ２／ｇのものを使
用するのが望ましい。通常は７００〜１５００ｍ２／ｇ
のものが使用される。充填比重は１００〜１０００ｇ／
リットル（Ｌ）、好ましくは２００〜８００ｇ／Ｌのも
のを使用するのが望ましい。The average particle size of activated carbon is determined by
1 to 1000 μm, preferably 10
It is desirable to use one having a thickness of up to 500 μm. Also, live
The specific surface area of charcoal is determined by the removal and removal of organic substances contained in water.
Select within a range that does not impair the efficiency of decomposition and removal of free residual chlorine
300-3000m in BET specific surface area 2
/ G, preferably 500 to 2500 m2/ G
It is desirable to use Usually 700 ~ 1500m2/ G
Is used. Filling specific gravity is 100-1000g /
Liter (L), preferably 200-800 g / L
It is desirable to use
【０００９】本発明に使用するポリオレフィンとして
は、ポリエチレン、ポリプロピレンなどを例示すること
ができるが、本発明のポリオレフィンは、ＭＦＲが１ｇ
／１０分以下であることが必要である。ＭＦＲとは、一
定の温度及び圧力で規定の直径及び長さのオリフィスか
ら押し出される熱可塑性プラスチックの流出速度であ
り、具体的にはＪＩＳ Ｋ ７２１０に従って測定され
るものである。Examples of the polyolefin used in the present invention include polyethylene and polypropylene. The polyolefin of the present invention has an MFR of 1 g.
/ 10 minutes or less. The MFR is a flow rate of a thermoplastic material extruded from an orifice having a specified diameter and length at a constant temperature and pressure, and is specifically measured according to JIS K7210.
【００１０】ポリエチレンを試験試料とした場合につい
て詳しく述べると、規定された径及び長さのオリフィス
をもつシリンダー中に該試験試料を入れ、１９０℃で２
１６０ｇの荷重をかけて材料を押し出し、４分間に流出
した試験材料の重量を測定して、それを１０分間当たり
の流出重量に換算して求めればよい。ポリオレフィン粉
末の粒子径はとくに限定されるものではないが、あまり
小さいと吸着性能が低下することがあり、又あまり大き
いと成型体の強度低下が大きいので、ポリオレフィン粉
末の中心粒子径は１〜１００μｍ、好ましくは１〜３０
μｍのものが望ましい。ポリオレフィンとしてはポリエ
チレンが好ましい。To describe in detail the case where polyethylene is used as a test sample, the test sample is placed in a cylinder having an orifice having a specified diameter and length, and the sample is placed at 190 ° C. for 2 hours.
The material may be extruded by applying a load of 160 g, the weight of the test material flowing out in 4 minutes may be measured, and the weight may be converted into the weight of the flow out per 10 minutes. Although the particle diameter of the polyolefin powder is not particularly limited, if it is too small, the adsorption performance may be reduced, and if it is too large, the strength of the molded body is greatly reduced. Therefore, the center particle diameter of the polyolefin powder is 1 to 100 μm. , Preferably 1 to 30
μm is desirable. Polyethylene is preferred as the polyolefin.
【００１１】本発明の吸着剤成型体を製造するには、ま
ず活性炭などの吸着剤、特定の粘度特性を有するポリエ
チレンなどのポリオレフィン粉末を配合し、ミキサーな
どでよく混合する。次いで、該混合物を型枠に充填し、
加熱、加圧することによって本発明の吸着剤成型体とす
ることができる。混合割合は、吸着剤１００重量部に対
してポリオレフィン粉末２〜４０重量部で実施するのが
好ましい。混合する時間は通常１〜２０分程度で充分で
ある。In order to manufacture the adsorbent molded article of the present invention, first, an adsorbent such as activated carbon and a polyolefin powder such as polyethylene having a specific viscosity characteristic are blended and well mixed with a mixer or the like. Next, the mixture is filled into a mold,
By heating and pressing, the adsorbent molded article of the present invention can be obtained. The mixing ratio is preferably 2 to 40 parts by weight of the polyolefin powder with respect to 100 parts by weight of the adsorbent. Mixing time of about 1 to 20 minutes is usually sufficient.
【００１２】加熱は１００〜２００℃で１〜６０分で実
施されるが、加熱温度は、ポリオレフィンの融点〜ポリ
オレフィンの融点＋３０℃の温度で実施すると本発明の
効果が大きく好ましい。また、加圧する圧力は所望によ
り適宜変えればよいが、通常は１〜５００ｋｇ／ｃｍ２
で実施される。本発明の吸着剤成型体において、吸着剤
の表面にはポリオレフィン粉末の薄いコート層が形成さ
れる。このコート層は、ポリオレフィン粉末が形状を保
ったコート層であり、その状態は顕微鏡観察で確認する
ことができる。The heating is carried out at 100 to 200 ° C. for 1 to 60 minutes. The heating is preferably carried out at a temperature from the melting point of the polyolefin to the melting point of the polyolefin + 30 ° C., since the effect of the present invention is greatly increased. The pressure to be applied may be appropriately changed as desired, but is usually 1 to 500 kg / cm 2.
Will be implemented. In the adsorbent molded article of the present invention, a thin coat layer of polyolefin powder is formed on the surface of the adsorbent. This coat layer is a coat layer in which the shape of the polyolefin powder is maintained, and the state can be confirmed by microscopic observation.
【００１３】本発明の吸着剤成型体には、強度を高める
ために、例えば、ポリエステル、ナイロン、アルミニウ
ム、ステンレス、ガラス繊維、紙などの繊維状又は板状
の補強材を本発明の効果を阻害しない程度に加えてもよ
い。本発明の吸着剤成型体はカートリッジに作製してハ
ウジングに装填し、飲料水の脱塩素処理、水中の有機物
の吸着除去などの浄水用や糖類の脱色、酒類の精製脱色
用などに使用される。カートリッジは、通水抵抗及び装
填・交換作業の観点から円筒状とするのが好ましい。本
発明の吸着剤成型体は、吸着剤の表面にポリオレフィン
の薄いコート層を有しており、使用する場合に黒い埃が
発生せず、吸着性能も充分発揮できるので、とくに浄水
器として好ましく使用される。通水方式としては、原水
を全量濾過する全濾過方式や循環濾過方式が採用され
る。In order to increase the strength, the adsorbent molded article of the present invention may be provided with a fibrous or plate-like reinforcing material such as polyester, nylon, aluminum, stainless steel, glass fiber, paper, etc., to impair the effects of the present invention. It may be added to the extent that it does not. The adsorbent molded body of the present invention is prepared in a cartridge and loaded into a housing, and is used for dechlorination of drinking water, dewatering of sugars such as adsorption and removal of organic substances in water, decolorization of sugars, and purification and decolorization of alcoholic beverages. . The cartridge is preferably formed in a cylindrical shape from the viewpoint of water flow resistance and loading / exchanging work. The adsorbent molded article of the present invention has a thin coat layer of polyolefin on the surface of the adsorbent, does not generate black dust when used, and can sufficiently exhibit adsorption performance, so it is preferably used particularly as a water purifier. Is done. As the water passing system, a full filtration system for filtering the whole amount of raw water or a circulation filtration system is employed.
【００１４】[0014]
【実施例】実施例１ クラレケミカル株式会社製の活性炭ＧＷ６０／１５０
（活性炭粒子径６０〜１５０メッシュ）９３重量部にＭ
ＦＲが０ｇ／１０分以下の中心粒子径が３０μｍ、融点
１３７℃のポリエチレン粉末７重量部を配合してミキサ
ーで５分間混合した。次いで、該活性炭を、外径４２．
５ｍｍ、内径２５．４ｍｍ、高さ９５ｍｍの円筒形型枠
に充填し、１４７℃で１７分間加熱加圧してカートリッ
ジに成型した。成型体は吸水性に優れており、顕微鏡観
察により、吸着剤表面に多くのポリエチレン粉末が形状
を保ったコート層が形成されているのを確認することが
できた。EXAMPLE 1 Activated carbon GW60 / 150 manufactured by Kuraray Chemical Co., Ltd.
(Activated carbon particle size 60-150 mesh) 93 parts by weight of M
7 parts by weight of a polyethylene powder having an FR of 0 g / 10 minutes or less and a central particle diameter of 30 μm and a melting point of 137 ° C. were mixed and mixed with a mixer for 5 minutes. Next, the activated carbon was supplied with an outer diameter of 42.
It was filled in a cylindrical mold having a size of 5 mm, an inner diameter of 25.4 mm and a height of 95 mm, and was heated and pressed at 147 ° C. for 17 minutes to form a cartridge. The molded article was excellent in water absorbency, and it was confirmed by microscopic observation that a coat layer in which a large amount of polyethylene powder maintained its shape was formed on the surface of the adsorbent.
【００１５】該カートリッジをハウジングに装填して浄
水器とし、遊離塩素濃度２ｐｐｍに調整した水を２リッ
トル（Ｌ）／分で供給し、浄水器から排出される水中の
遊離塩素の濃度が０．４ｐｐｍに達するまでの総通水量
を測定し、遊離塩素除去性能を評価した。なお、遊離塩
素の濃度はデイーピーデイー（ＤＰＤ）比色法により測
定した。また、同時に圧力損失を測定した。圧力損失は
０．２ｋｇｆ／ｃｍ２程度で問題はなかった。結果を表
１に示すが、浄水器として充分使用できるものであっ
た。The cartridge is loaded in a housing to form a water purifier, and water adjusted to a free chlorine concentration of 2 ppm is supplied at 2 liters (L) / min. The total water flow until reaching 4 ppm was measured to evaluate the free chlorine removal performance. In addition, the concentration of free chlorine was measured by a DPD colorimetric method. At the same time, the pressure loss was measured. The pressure loss was about 0.2 kgf / cm 2 and there was no problem. The results are shown in Table 1, and were sufficiently usable as a water purifier.
【００１６】実施例２〜４ １６７℃で１４分間加熱加圧して成型する（実施例
２）、１３７℃で４０分間加熱加圧して成型する（実施
例３）及び１８０℃で１２．５分間加熱加圧して成型す
る（実施例４）以外は実施例１と同様にして浄水器を作
製し、性能を測定した。結果を表１に示す。Examples 2-4 Molding by heating and pressing at 167 ° C. for 14 minutes (Example 2), molding by heating and pressing at 137 ° C. for 40 minutes (Example 3), and heating at 180 ° C. for 12.5 minutes A water purifier was prepared and the performance was measured in the same manner as in Example 1 except that molding was performed by applying pressure (Example 4). Table 1 shows the results.
【００１７】比較例１ クラレケミカル株式会社製の活性炭ＧＷ６０／１５０
（活性炭粒子径６０〜１５０メッシュ）９３重量部にＭ
ＦＲが３７ｇ／１０分の中心粒子径が１２μｍ、融点１
３０℃のポリエチレン粉末７重量部を配合してミキサー
で５分間混合し、１６０℃で１４分間成型した。該成型
体を顕微鏡で観察したところ、活性炭表面にポリエチレ
ンの薄いコート層が形成されていたが、殆どのポリエチ
レン粉末は形状を保っておらず、該コート層はポリエチ
レンが溶融して形成されたコート層であった。したがっ
て、実施例で製造した成型体に比較して吸水性に劣って
いた。実施例１と同様にカートリッジに成型し、性能を
測定した。結果を表１に示す。Comparative Example 1 Activated carbon GW60 / 150 manufactured by Kuraray Chemical Co., Ltd.
(Activated carbon particle size 60-150 mesh) 93 parts by weight of M
FR: 37 g / 10 min, center particle diameter: 12 μm, melting point: 1
7 parts by weight of polyethylene powder at 30 ° C. were blended, mixed for 5 minutes by a mixer, and molded at 160 ° C. for 14 minutes. When the molded body was observed with a microscope, a thin coat layer of polyethylene was formed on the surface of the activated carbon, but most of the polyethylene powder did not maintain its shape, and the coat layer was formed by melting polyethylene. Layer. Therefore, it was inferior in water absorption as compared with the molded article manufactured in the example. A cartridge was molded in the same manner as in Example 1, and the performance was measured. Table 1 shows the results.
【００１８】比較例２ 比較例１と同様に混合後、１６０℃で１２．５分間加熱
加圧したが、成型できなかった。Comparative Example 2 After mixing as in Comparative Example 1, the mixture was heated and pressed at 160 ° C. for 12.5 minutes, but could not be molded.
【００１９】比較例３ 比較例１と同様に混合後、１３０℃で３８分間加熱加圧
して成型した。得られた成型体を顕微鏡で観察したとこ
ろ、比較例１の成型体とほぼ同様であった。Comparative Example 3 After mixing as in Comparative Example 1, the mixture was molded by heating and pressing at 130 ° C. for 38 minutes. Observation of the obtained molded body with a microscope revealed that it was almost the same as the molded body of Comparative Example 1.
【００２０】比較例４ クラレケミカル株式会社製の活性炭ＧＷ６０／１５０
（活性炭粒子径６０〜１５０メッシュ）９３重量部にＭ
ＦＲが１．２ｇ／１０分の中心粒子径が３０μｍ、融点
１０７℃のポリエチレン粉末７重量部を配合してミキサ
ーで５分間混合し、１３７℃で１４分間成型した。該成
型体を顕微鏡で観察したところ、活性炭表面には比較例
１とほぼ同様のポリエチレンの薄いコート層が形成され
ていた。実施例１と同様にカートリッジに成型し、性能
を測定した。結果を表１に示す。Comparative Example 4 Activated carbon GW60 / 150 manufactured by Kuraray Chemical Co., Ltd.
(Activated carbon particle size 60-150 mesh) 93 parts by weight of M
7 parts by weight of a polyethylene powder having a center particle diameter of 30 μm and a melting point of 107 ° C. were mixed with a mixer for 5 minutes, and molded at 137 ° C. for 14 minutes. Observation of the molded product under a microscope revealed that a thin coat layer of polyethylene was formed on the activated carbon surface in substantially the same manner as in Comparative Example 1. A cartridge was molded in the same manner as in Example 1, and the performance was measured. Table 1 shows the results.
【００２１】比較例５ 比較例１と同様に混合後、１３７℃で１２．５分間加熱
加圧したが、成型できなかった。Comparative Example 5 After mixing as in Comparative Example 1, the mixture was heated and pressed at 137 ° C. for 12.5 minutes, but could not be molded.
【００２２】比較例６ 比較例１と同様に混合後、１０７℃で３８分間加熱加圧
して成型した。得られた成型体を顕微鏡で観察したとこ
ろ、活性炭の表面は比較例１とほぼ同様であった。以上
の実施例及び比較例の結果から、本発明の成型体が浄水
用として優れていることがわかる。Comparative Example 6 After mixing as in Comparative Example 1, the mixture was molded by heating and pressing at 107 ° C. for 38 minutes. When the obtained molded body was observed with a microscope, the surface of the activated carbon was almost the same as that of Comparative Example 1. From the results of the above Examples and Comparative Examples, it is understood that the molded article of the present invention is excellent for water purification.
【００２３】[0023]
【表１】 [Table 1]
【００２４】[0024]
【発明の効果】本発明により、ＭＦＲが１ｇ／１０分以
下のポリオレフィン粉末をバインダーとして成型した吸
着剤成型体を得ることができる。本発明の成型体は、手
で触れても手が汚れたり、摩擦により黒い埃が出るなど
の問題はなく、吸着剤と水溶液との接触が良好であり、
吸着剤としての機能が充分に発揮される。また、本発明
の吸着剤成型体は、活性炭などの吸着剤に特定の粘度特
性を有するポリオレフィンを配合し、該ポリオレフィン
の融点〜該ポリオレフィンの融点＋３０℃の温度で加
熱、加圧することにより成型することができる。本発明
の吸着剤成型体は、使用時に黒い埃が発生せず、上記し
たように水溶液と接触しても吸着剤としての機能が充分
に発揮されるので、カートリッジに作製し、ハウジング
に挿入して浄水器として好適に使用することができる。According to the present invention, it is possible to obtain an adsorbent molded article molded using a polyolefin powder having an MFR of 1 g / 10 minutes or less as a binder. The molded article of the present invention has no problem such as soiling of hands even if touched by hand, black dust coming out due to friction, good contact between the adsorbent and the aqueous solution,
The function as an adsorbent is sufficiently exhibited. The molded article of the adsorbent of the present invention is formed by mixing a polyolefin having a specific viscosity characteristic with an adsorbent such as activated carbon, and heating and pressurizing the mixture at a temperature of from the melting point of the polyolefin to the melting point of the polyolefin + 30 ° C. be able to. The molded article of the adsorbent of the present invention does not generate black dust when used, and sufficiently functions as an adsorbent even when in contact with an aqueous solution as described above. It can be suitably used as a water purifier.
Claims (9)
ート層を有する吸着剤成型体であって、該ポリオレフィ
ンはメルトフローレートが１ｇ／１０分以下の粘度特性
を有するポリオレフィンであることを特徴とする吸着剤
成型体。1. An adsorbent molded article having a thin coat layer of polyolefin on the surface of the adsorbent, wherein the polyolefin is a polyolefin having a melt flow rate of 1 g / 10 minutes or less. Adsorbent molded body.
吸着剤成型体。2. The adsorbent molded article according to claim 1, wherein said adsorbent is activated carbon.
請求項１又は２記載の吸着剤成型体。3. The adsorbent molded product according to claim 1, wherein the polyolefin is polyethylene.
である請求項１〜３いずれかに記載の吸着剤成型体。4. The adsorbent molded article according to claim 1, wherein the adsorbent molded article is a cartridge for a water purifier.
ジである請求項４記載の吸着剤成型体。5. The adsorbent molded article according to claim 4, wherein said cartridge is a cylindrical cartridge.
ハウジングに装填してなる浄水器。6. A water purifier obtained by loading the molded adsorbent according to claim 1 into a housing.
し、加熱加圧して吸着剤の表面にポリオレフィンの薄い
コート層を有する吸着剤成型体を製造する方法であっ
て、該ポリオレフィンはメルトフローレートが１ｇ／１
０分以下のポリオレフィンであり、該ポリオレフィンの
融点〜該ポリオレフィンの融点＋３０℃の温度で加熱、
加圧して成型することを特徴とする吸着剤成型体の製造
方法。7. A method for producing an adsorbent molded article having a thin coat layer of polyolefin on the surface of an adsorbent by mixing an adsorbent and polyolefin powder, and applying heat and pressure, wherein the polyolefin has a melt flow rate of 1 g. / 1
0 minutes or less polyolefin, heating at a temperature of from the melting point of the polyolefin to the melting point of the polyolefin + 30 ° C,
A method for producing a molded adsorbent, which comprises molding under pressure.
吸着剤成型体の製造方法。8. The method for producing a molded adsorbent according to claim 7, wherein the adsorbent is activated carbon.
請求項７又は８記載の吸着剤成型体の製造方法。9. The method for producing a molded adsorbent according to claim 7, wherein the polyolefin is polyethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11069800A JP2000263040A (en) | 1999-03-16 | 1999-03-16 | Adsorbent molded body and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11069800A JP2000263040A (en) | 1999-03-16 | 1999-03-16 | Adsorbent molded body and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000263040A true JP2000263040A (en) | 2000-09-26 |
Family
ID=13413193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11069800A Pending JP2000263040A (en) | 1999-03-16 | 1999-03-16 | Adsorbent molded body and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000263040A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011016548A1 (en) * | 2009-08-06 | 2011-02-10 | クラレケミカル株式会社 | Molded activated charcoal and water purifier involving same |
| KR20110085987A (en) * | 2008-10-17 | 2011-07-27 | 유니레버 엔.브이. | Carbon block filter |
| JP2014121691A (en) * | 2012-12-21 | 2014-07-03 | Osaka Gas Chem Kk | Water purification material, water purification cartridge, water purifier, and method of producing water purification material |
| JP2014180596A (en) * | 2013-03-18 | 2014-09-29 | Osaka Gas Chem Kk | Purification cartridge and water purifier |
| WO2016204206A1 (en) * | 2015-06-18 | 2016-12-22 | 関西熱化学株式会社 | Activated carbon molded body, method for manufacturing activated carbon molded body, and absorbent material and storage material using activated carbon molded body |
| JP2017007878A (en) * | 2015-06-18 | 2017-01-12 | 関西熱化学株式会社 | Active carbon molded body and manufacturing method thereof, and adsorbent and storage material therewith |
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1999
- 1999-03-16 JP JP11069800A patent/JP2000263040A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110085987A (en) * | 2008-10-17 | 2011-07-27 | 유니레버 엔.브이. | Carbon block filter |
| JP2012505737A (en) * | 2008-10-17 | 2012-03-08 | ユニリーバー・ナームローゼ・ベンノートシヤープ | Carbon block filter |
| US9339747B2 (en) | 2008-10-17 | 2016-05-17 | Conopco, Inc. | Carbon block filter |
| KR101661779B1 (en) * | 2008-10-17 | 2016-09-30 | 유니레버 엔.브이. | Carbon block filter |
| WO2011016548A1 (en) * | 2009-08-06 | 2011-02-10 | クラレケミカル株式会社 | Molded activated charcoal and water purifier involving same |
| JPWO2011016548A1 (en) * | 2009-08-06 | 2013-01-17 | クラレケミカル株式会社 | Activated carbon molded body and water purifier using the same |
| US9033158B2 (en) | 2009-08-06 | 2015-05-19 | Kuraray Chemical Co., Ltd. | Molded activated charcoal and water purifier involving same |
| JP2014121691A (en) * | 2012-12-21 | 2014-07-03 | Osaka Gas Chem Kk | Water purification material, water purification cartridge, water purifier, and method of producing water purification material |
| JP2014180596A (en) * | 2013-03-18 | 2014-09-29 | Osaka Gas Chem Kk | Purification cartridge and water purifier |
| WO2016204206A1 (en) * | 2015-06-18 | 2016-12-22 | 関西熱化学株式会社 | Activated carbon molded body, method for manufacturing activated carbon molded body, and absorbent material and storage material using activated carbon molded body |
| JP2017007879A (en) * | 2015-06-18 | 2017-01-12 | 関西熱化学株式会社 | Active carbon molded body and manufacturing method thereof, and adsorbent and storage material therewith |
| JP2017007878A (en) * | 2015-06-18 | 2017-01-12 | 関西熱化学株式会社 | Active carbon molded body and manufacturing method thereof, and adsorbent and storage material therewith |
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