JPH07241461A - Hollow short-fibrous carbon material and its production - Google Patents
Hollow short-fibrous carbon material and its productionInfo
- Publication number
- JPH07241461A JPH07241461A JP6060114A JP6011494A JPH07241461A JP H07241461 A JPH07241461 A JP H07241461A JP 6060114 A JP6060114 A JP 6060114A JP 6011494 A JP6011494 A JP 6011494A JP H07241461 A JPH07241461 A JP H07241461A
- Authority
- JP
- Japan
- Prior art keywords
- charcoal
- carbon material
- carbonized
- subjected
- hollow short
- 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.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は新規な中空短繊維状炭素
材及びその製造方法に関するものである。さらに詳しく
いえば、本発明は、樹木の仮道管の炭素化物から成り、
ガスや金属の吸着材、電磁シールド材、生物膜担体、断
熱材、人工土壌などとして有用な中空短繊維状炭素材及
びこのものの製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel hollow short fibrous carbon material and a method for producing the same. More specifically, the present invention comprises a carbonized material of a temporary conduit of a tree,
The present invention relates to a hollow short fibrous carbon material useful as an adsorbent for gas or metal, an electromagnetic shield material, a biofilm carrier, a heat insulating material, artificial soil, etc., and a method for producing the same.
【０００２】[0002]
【従来の技術】スギ、マツ、ヒノキなどの針葉樹材の細
胞は仮道管、軸方向柔細胞、放射組織及び軸方向樹脂道
などから構成されており、このうち仮道管が９０％以上
すなわち平均９６％を占めている。残りはほとんど放射
組織で、軸方向柔細胞や樹脂道は、存在する場合でも１
％以下のことが多い。2. Description of the Related Art Cells of softwood such as cedar, pine, and cypress are composed of tracheids, axial parenchyma cells, radiant tissues and axial resin tracts, of which 90% or more It accounts for 96% on average. The remainder is mostly radiant tissue, with axial parenchyma and resin tracts even if present 1.
Often less than%.
【０００３】このように、針葉樹材はほとんど仮道管で
構成されているのが特徴であり、この仮道管は針葉樹材
の通水要素であって、水の通導と樹体の支持の２つの作
用を受けもっている。その形状は細長く、両端では細く
なり仮道管は閉じられている。その切り口は四角形ない
し六角形状のものが多い。[0003] As described above, the softwood material is characterized in that it is almost composed of a temporary conduit, which is a water-passing element of the softwood material and is used for conducting water and supporting the tree. It has two effects. Its shape is elongated and narrowed at both ends, and the temporary conduit is closed. Most of the cuts are square or hexagonal.
【０００４】前記仮道管の寸法は、同一樹種であって
も、固体、幹内部位、早材と晩材で異なるが、仮道管長
は一般に１〜７ｍｍ程度である。また仮道管の放射方向
の径及び壁厚は、早材と晩材とで異なり、放射方向の径
は晩材で減少し、壁厚は早材では薄く、晩材では厚くな
る。接線方向の径は早材と晩材であまり変化しない。仮
道管の放射方向の径は、一般に早材で１５〜７０μｍ、
晩材で５〜４５μｍ程度であり、接線方向の径は、一般
に１５〜６０μｍ程度である。また仮道管の壁厚は、一
般に早材で１〜３μｍ、晩材で２〜７μｍ程度である。The size of the temporary conduit varies depending on the type of solid, intra-stem site, early wood and late wood even if the same tree species is used, but the length of the temporary conduit is generally about 1 to 7 mm. Further, the radial diameter and wall thickness of the temporary conduit differ between the early wood and the late wood, the radial diameter decreases in the late wood, and the wall thickness becomes thin in the early wood and thicker in the late wood. The tangential diameter does not change much between early wood and late wood. The radial diameter of the temporary conduit is generally 15 to 70 μm for early materials,
The late material has a diameter of about 5 to 45 μm, and the diameter in the tangential direction is generally about 15 to 60 μm. The wall thickness of the temporary conduit is generally about 1 to 3 μm for early wood and about 2 to 7 μm for late wood.
【０００５】このような樹木の仮道管を炭素化し、それ
を分離すれば、中空短繊維状の炭素材が得られることが
期待できる。この炭素材は、ガスや金属の吸着材、電磁
シールド材、生物膜担体、断熱材、人工土壌などとして
有用であり、また炭素質であるため、使用後にそのまま
廃棄しても環境に与える影響は少ない。It is expected that a carbon material in the form of hollow short fibers can be obtained by carbonizing the temporary conduit of such a tree and separating it. This carbon material is useful as an adsorbent for gases and metals, an electromagnetic shield material, a biofilm carrier, a heat insulating material, artificial soil, etc.Because it is carbonaceous, it has no effect on the environment even if it is discarded as it is after use. Few.
【０００６】[0006]
【発明が解決しようとする課題】本発明は、ガスや金属
の吸着材、電磁シールド材、生物膜担体、断熱材、人工
土壌などとして有用な新規な中空短繊維状炭素材を提供
することを目的としてなされたものである。DISCLOSURE OF THE INVENTION The present invention provides a novel hollow short fibrous carbon material which is useful as an adsorbent for gas or metal, an electromagnetic shield material, a biofilm carrier, a heat insulating material, artificial soil and the like. It was done for the purpose.
【０００７】[0007]
【課題を解決するための手段】本発明者らは、新規な中
空短繊維状炭素材を開発すべく鋭意研究を重ねた結果、
樹木の仮道管を構成する一次壁と二次壁及び仮道管同士
を結合している細胞間層はその化学組成やセルロースの
配向度が異なるため、それらの炭素化物の化学反応性に
差異が生じることに着目し、針葉樹木炭を特定の温度で
気相酸化したのち、アルカリ処理することにより、仮道
管の炭素化物から成る中空短繊維状炭素材が効率よく得
られることを見出し、この知見に基づいて本発明を完成
するに至った。[Means for Solving the Problems] As a result of intensive studies to develop a novel hollow short fibrous carbon material, the present inventors have found that
The chemical composition and orientation of cellulose differ between the primary and secondary walls that make up the tracheid of trees, and the intercellular layers that connect the tracheids. It was found that the hollow short fibrous carbonaceous material consisting of the carbonized material of the temporary conduit can be efficiently obtained by subjecting the softwood charcoal to vapor-phase oxidation at a specific temperature and then subjecting it to alkali treatment. The present invention has been completed based on the findings.
【０００８】すなわち、本発明は、個々に分離された木
部の仮道管の炭素化物から成る中空短繊維状炭素材を提
供するものである。[0008] That is, the present invention provides a hollow short fibrous carbon material which is made of carbonized carbonaceous tracheids of individual wood parts.
【０００９】本発明に従えば、前記中空短繊維状炭素材
は、例えば針葉樹木炭を２７０〜３５０℃の温度で気相
酸化したのち、アルカリ水溶液で処理することにより、
製造することができる。According to the present invention, the hollow short fibrous carbonaceous material is obtained, for example, by subjecting softwood charcoal to vapor-phase oxidation at a temperature of 270 to 350 ° C. and then treating it with an alkaline aqueous solution.
It can be manufactured.
【００１０】本発明において用いられる樹材としては、
組織中の仮道管が占める割合が多いことから、針葉樹例
えばスギ、コウヤマキ、レッドウッドのようなスギ科植
物や、ヒノキ、サワラ、ネズコ、ヒバのようなヒノキ科
植物が用いられる。The wood used in the present invention includes:
Since the proportion of tracheids in tissues is large, coniferous plants such as cedar plants such as cedar, koyamaki and redwood, and cypress plants such as cypress, sawara, cats and hiba are used.
【００１１】本発明においては、まず前記樹材を木炭化
することが必要である。この木炭化の方法としては、成
熟材を不活性雰囲気下に５００〜８００℃の範囲の温度
で加熱処理するのが望ましい。この温度が５００℃未満
では木炭化が十分に起こらないし、８００℃を超えると
所望の炭素材が得られない。In the present invention, it is first necessary to carbonize the wood. As a method of carbonizing the wood, it is desirable to heat the matured wood at a temperature in the range of 500 to 800 ° C. under an inert atmosphere. If this temperature is less than 500 ° C, carbonization of wood does not occur sufficiently, and if it exceeds 800 ° C, the desired carbon material cannot be obtained.
【００１２】次に、このようにして得られた木炭を酸素
濃度２０容量％以下の雰囲気中、２７０〜３５０℃の範
囲の温度において気相酸化を行う。木部仮道管を構成し
ている一次壁と二次壁及び仮道管同士を結合している細
胞間層は、それぞれの化学組成及びセルロースの配向度
が異なる。すなわち、仮道管の二次壁は、一次壁や細胞
間層に比べてリグニンの含有量が少なく、かつ配合度の
大きいセルロースを多く含有している。このセルロース
の配向性は、前記のようにして得られた針葉樹木炭に基
本的に保持されており、したがって、酸化反応は、セル
ロース炭素質が主体で、かつその配向度が大きく、壁面
に反応サイトが少ない二次壁炭素質よりも、細胞間層や
一次壁から生成された炭素質において選択的に起こる。Next, the charcoal thus obtained is subjected to gas phase oxidation in an atmosphere having an oxygen concentration of 20% by volume or less at a temperature in the range of 270 to 350 ° C. The chemical composition and the degree of orientation of cellulose are different in the intercellular layer connecting the primary wall, the secondary wall, and the tracheids forming the xylem trachea. That is, the secondary wall of the temporary duct contains a large amount of cellulose having a low lignin content and a large blending degree as compared with the primary wall and the intercellular layer. The orientation of this cellulose is basically retained in the softwood charcoal obtained as described above. Therefore, the oxidation reaction is mainly composed of cellulose carbonaceous matter, and its degree of orientation is large, and the reaction site on the wall surface Occurs preferentially in the carbonaceous material produced from the intercellular layer or primary wall rather than in the secondary carbonaceous material.
【００１３】この反応温度が２７０℃未満では酸化反応
が十分に進行せず、所望の炭素材が得られないし、３５
０℃を超えると酸化反応が進行しすぎて、やはり所望の
炭素材が得られない。また、酸化反応の際の酸素濃度
は、木炭化の温度、木炭の性状、酸化温度などに応じて
異なるが、２０容量％以下にすることが必要である。ま
た、酸化に要する時間も木炭化の温度、木炭の性状、酸
化温度、酸素濃度などにより異なり、一概に定めること
ができないが、一般に木炭の重量が４０〜６０％程度に
減少するまで酸化を行うのが有利である。If the reaction temperature is less than 270 ° C., the oxidation reaction does not proceed sufficiently and the desired carbon material cannot be obtained.
If it exceeds 0 ° C., the oxidation reaction proceeds too much, and the desired carbon material cannot be obtained. The oxygen concentration during the oxidation reaction varies depending on the temperature of charcoal, the properties of charcoal, the oxidation temperature, and the like, but it is necessary to be 20% by volume or less. Also, the time required for oxidation varies depending on the temperature of charcoal, the properties of charcoal, the oxidation temperature, the oxygen concentration, etc., and cannot be determined unconditionally, but generally the oxidation is carried out until the weight of charcoal is reduced to about 40 to 60%. Is advantageous.
【００１４】次に、前記酸化反応処理物をアルカリで処
理する。このアルカリによる処理によって、酸化反応で
生じたアルカリ可溶性生成物が溶解するとともに、個々
の仮道管の炭素化物が、短繊維状となって分離する。ア
ルカリとしては、例えば水酸化ナトリウムや水酸化カリ
ウムなどの水溶液が用いられる。このアルカリ水溶液の
アルカリ濃度は、通常０．０５〜１Ｎ程度である。処理
温度は、通常０〜８０℃、好ましくは１０〜５０℃、よ
り好ましくは常温である。処理時間は、処理温度により
左右され、一概に定めることができないが、０．１〜５
時間程度で十分である。Next, the oxidation reaction product is treated with alkali. By this treatment with alkali, the alkali-soluble products generated by the oxidation reaction are dissolved, and the carbonized products of the individual temporary conduits are separated into short fibers. As the alkali, for example, an aqueous solution of sodium hydroxide or potassium hydroxide is used. The alkali concentration of this alkaline aqueous solution is usually about 0.05 to 1N. The treatment temperature is usually 0 to 80 ° C, preferably 10 to 50 ° C, and more preferably room temperature. The treatment time depends on the treatment temperature and cannot be determined unconditionally, but is 0.1-5.
Time is enough.
【００１５】アルカリ水溶液中に分散した短繊維状の仮
道管炭素化物を、ろ過やデカンテーションなどの公知の
方法により取り出し、十分に水洗したのち、乾燥するこ
とにより、短繊維状の仮道管炭素化物が得られる。The short fibrous temporary conduit carbonized material dispersed in an alkaline aqueous solution is taken out by a known method such as filtration or decantation, thoroughly washed with water, and then dried to obtain a short fibrous temporary conduit. A carbonized product is obtained.
【００１６】このようにして得られた本発明炭素材は、
針葉樹材の仮道管の炭素化物であるため、中空短繊維状
の形態を有している。また、このものは、一般に配向性
をもつセルロース炭素化物を主体とし、横断面が方形又
は円形に近い形状を有しており、長さ、管径及び壁厚は
原料の針葉樹材の種類により異なるが、一般に、長さは
１〜４ｍｍ、管径は５〜３０μｍ、壁厚は０．５〜３μ
ｍの範囲である。なお、管径は、横断面が方形の場合は
一辺の長さを、円形の場合は直径を指す。さらに、この
炭素材には径が６μｍ程度以下の円形の壁孔が随所に存
在しているため、吸着材、ろ過材として特に適してい
る。The carbon material of the present invention thus obtained is
Since it is a carbonized material of a temporary conduit made of softwood, it has a hollow short fiber form. Further, this product is generally composed mainly of oriented carbonized cellulose, and has a cross section of a shape close to a square or a circle, and the length, pipe diameter and wall thickness differ depending on the type of the softwood material used as the raw material. However, in general, the length is 1 to 4 mm, the pipe diameter is 5 to 30 μm, and the wall thickness is 0.5 to 3 μ.
The range is m. The tube diameter means the length of one side when the cross section is rectangular, and the diameter when it is circular. Furthermore, since this carbon material has circular wall holes each having a diameter of about 6 μm or less, it is particularly suitable as an adsorbent or a filter.
【００１７】[0017]
【発明の効果】本発明炭素材は、針葉樹材仮道管の炭素
化物から成るものであって、中空短繊維状の形態を有
し、集積して、接着、加工処理を施すことにより、自在
の形状のものが作製可能である。この炭素材は、例えば
ガスや金属の吸着材、電磁シールド材、生物膜担体、断
熱材、人工土壌などとしての利用が期待できる。また、
炭素質であるため、使用後の廃棄では環境に与える影響
は少ない。EFFECT OF THE INVENTION The carbon material of the present invention is made of a carbonized material of a softwood material temporary conduit, has a hollow short fiber form, and can be freely assembled by adhering and processing. It is possible to fabricate the shape of. This carbon material can be expected to be used as, for example, an adsorbent for gas or metal, an electromagnetic shield material, a biofilm carrier, a heat insulating material, artificial soil, or the like. Also,
Since it is carbonaceous, it has little impact on the environment when it is discarded after use.
【００１８】[0018]
【実施例】次に、実施例により本発明をさらに詳細に説
明するが、本発明はこの例によってなんら限定されるも
のではない。EXAMPLES Next, the present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples.
【００１９】実施例 １０（軸方向）×８×８ｍｍ角のスギ成熟材を、不活性
雰囲気中で、毎分３℃の昇温速度で６５０℃まで加熱し
て木炭化した。得られた木炭の嵩比重は０．２３、メタ
ノール浸せき法による真比重は１．６７であった。Example 10 Mature (x-axis) × 8 × 8 mm square sugi (Cryptomeria japonica) wood was heated to 650 ° C. in an inert atmosphere at a heating rate of 3 ° C./min to carbonize. The obtained charcoal had a bulk specific gravity of 0.23 and a true specific gravity of 1.67 as measured by the methanol dipping method.
【００２０】次いで、この木炭を、温度３５０℃、酸素
濃度を５〜１０容量％の範囲に保持した石英管中に２．
５時間静置し、木炭の重量が５０％程度に減少するまで
気相酸化した。この酸化された木炭のメタノール浸せき
法による真比重は１．７８であり、その増加は、木炭中
で選択的酸化が起きていることを示唆する。Then, this charcoal was placed in a quartz tube having a temperature of 350 ° C. and an oxygen concentration of 5 to 10% by volume.
The mixture was allowed to stand for 5 hours and vapor-phase oxidized until the weight of charcoal was reduced to about 50%. The true specific gravity of this oxidized charcoal obtained by the methanol dipping method is 1.78, and its increase suggests that selective oxidation occurs in the charcoal.
【００２１】次に、この酸化された木炭を０．２Ｎ水酸
化ナトリウム水溶液中に、常温にて１０分間浸せきする
ことにより、木炭から仮道管の炭素化物が分離し、短繊
維状に分散した。その後、ろ過によりこの炭素化物を取
り出し、十分に水洗後、乾燥した。収率は約９５％であ
った。Next, the oxidized charcoal was dipped in a 0.2N aqueous sodium hydroxide solution at room temperature for 10 minutes to separate the carbonized material of the temporary conduit from the charcoal and disperse it in the form of short fibers. . Then, this carbonized product was taken out by filtration, washed thoroughly with water, and dried. The yield was about 95%.
【００２２】このスギ炭からの仮道管の炭素化物は、長
さが長くて３ｍｍ強の中空繊維状の形態を有し、その横
断面は方形状のものが主であるが円形状のものも認めら
れる。その一辺又は直径は５〜２５μｍの範囲にある
が、１０〜２０μｍのものが多い。また、壁厚は０．５
〜３μｍの範囲であるが、３μｍの壁厚は少ない。この
壁面には円形の孔が随所に存在する。The carbonized material of the temporary conduit made of sugi charcoal has a long length and a shape of a hollow fiber having a length of a little over 3 mm, and its cross section is mainly rectangular but circular. Is also accepted. Its one side or diameter is in the range of 5 to 25 μm, but most of them are 10 to 20 μm. The wall thickness is 0.5
It is in the range of ˜3 μm, but the wall thickness of 3 μm is small. There are circular holes everywhere on this wall.
【００２３】この炭素材には、スギ材仮道管特有の壁孔
が存在する。また、この炭素材の重量収率は原料スギ材
に対して約１５％であった。しかし、酸化処理を通して
仮道管の炭素化物の数自体は基本的に減少していない。
図１に、この炭素材の電子顕微鏡写真を示す。The carbon material has wall holes peculiar to the Japanese cedar material temporary conduit. The weight yield of this carbon material was about 15% with respect to the raw cedar material. However, the number of carbonized materials in the temporary conduit has not basically decreased through the oxidation treatment.
FIG. 1 shows an electron micrograph of this carbon material.
【００２４】この図において、左上より右下に配置され
た最前面の中空短繊維状炭素の管径は約２５μｍで、分
布上からみれば太い部類に属する。また、多数の繊維の
中には、横断面が方形状のものと円形状のものが認めら
れ、仮道管の末端は細くなってその先端が閉じている状
態が分かる。なお、仮道管壁には円形の孔が随所に認め
られる。In this figure, the tube diameter of the front short hollow fibrous carbon arranged from the upper left to the lower right is about 25 μm, which belongs to the thick category from the viewpoint of distribution. In addition, among a large number of fibers, one having a square cross section and one having a circular cross section are recognized, and it can be seen that the end of the temporary duct is thin and the tip thereof is closed. In addition, circular holes are found everywhere on the wall of the temporary conduit.
【図１】 本発明炭素材の１例の繊維の形状を示す電子
顕微鏡写真FIG. 1 is an electron micrograph showing the shape of fibers of an example of the carbon material of the present invention.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 吉沢 徳子 茨城県つくば市小野川16番３ 工業技術院 資源環境技術総合研究所内 (72)発明者 白石 稔 茨城県つくば市小野川16番３ 工業技術院 資源環境技術総合研究所内 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Tokiko Yoshizawa 16-3 Onogawa, Tsukuba-shi, Ibaraki Institute of Industrial Science and Technology, Research Institute for Natural Resources and Environment (72) Inventor Minoru Shiraishi 16-3 Onogawa, Tsukuba, Ibaraki Industrial Resources Environmental Technology Research Institute
Claims (4)
化物から成る中空短繊維状炭素材。1. A hollow short fibrous carbonaceous material comprising carbonized products of individually separated softwood tracheids.
壁厚０．５〜３μｍの方形ないし円形断面を有する請求
項１記載の中空短繊維状炭素材。2. The hollow short fibrous carbon material according to claim 1, which has a rectangular or circular cross section having a length of 1 to 4 mm, a diameter of 5 to 30 μm, and a wall thickness of 0.5 to 3 μm.
中、２７０〜３５０℃の温度で気相酸化したのち、アル
カリで処理することにより、仮道管単位に分離させるこ
とを特徴とする中空短繊維状炭素材の製造方法。3. A hollow characterized in that charcoal is subjected to vapor phase oxidation in an atmosphere having an oxygen concentration of 20% by volume or less at a temperature of 270 to 350 ° C., and then treated with alkali to be separated into temporary tube units. Manufacturing method of short fibrous carbon material.
５００〜８００℃の範囲の温度で加熱し、木炭化された
ものである請求項３記載の製造方法。4. The charcoal is used for treating matured softwood under an inert atmosphere,
The manufacturing method according to claim 3, wherein the material is carbonized by heating at a temperature in the range of 500 to 800 ° C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6060114A JP2535775B2 (en) | 1994-03-03 | 1994-03-03 | Hollow short fibrous carbon material and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6060114A JP2535775B2 (en) | 1994-03-03 | 1994-03-03 | Hollow short fibrous carbon material and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07241461A true JPH07241461A (en) | 1995-09-19 |
| JP2535775B2 JP2535775B2 (en) | 1996-09-18 |
Family
ID=13132772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6060114A Expired - Lifetime JP2535775B2 (en) | 1994-03-03 | 1994-03-03 | Hollow short fibrous carbon material and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2535775B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100924950B1 (en) * | 2007-09-18 | 2009-11-06 | 한국에너지기술연구원 | Microtubule carbon materials and method for producing microtubule carbon materials obtained by heat treatment of cellulose fiber, and Microtubule reactor module and method for fabricating a microtubule reactor module using this carbon materials, and Micro catalytic reactor installed by a microtubule reactor module |
| CN114929378A (en) * | 2019-09-13 | 2022-08-19 | 碳进化有限公司 | Absorbent for municipal wastewater treatment |
-
1994
- 1994-03-03 JP JP6060114A patent/JP2535775B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100924950B1 (en) * | 2007-09-18 | 2009-11-06 | 한국에너지기술연구원 | Microtubule carbon materials and method for producing microtubule carbon materials obtained by heat treatment of cellulose fiber, and Microtubule reactor module and method for fabricating a microtubule reactor module using this carbon materials, and Micro catalytic reactor installed by a microtubule reactor module |
| CN114929378A (en) * | 2019-09-13 | 2022-08-19 | 碳进化有限公司 | Absorbent for municipal wastewater treatment |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2535775B2 (en) | 1996-09-18 |
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