JP2713198B2 - filter - Google Patents
filterInfo
- Publication number
- JP2713198B2 JP2713198B2 JP7000694A JP69495A JP2713198B2 JP 2713198 B2 JP2713198 B2 JP 2713198B2 JP 7000694 A JP7000694 A JP 7000694A JP 69495 A JP69495 A JP 69495A JP 2713198 B2 JP2713198 B2 JP 2713198B2
- Authority
- JP
- Japan
- Prior art keywords
- filter
- filter according
- yarn
- bobbin
- terephthalic acid
- 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.)
- Expired - Lifetime
Links
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 10
- 239000004917 carbon fiber Substances 0.000 claims description 10
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 10
- 238000004804 winding Methods 0.000 claims description 10
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 34
- 239000000243 solution Substances 0.000 description 15
- 239000007864 aqueous solution Substances 0.000 description 9
- 239000007787 solid Substances 0.000 description 9
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- URLKBWYHVLBVBO-UHFFFAOYSA-N Para-Xylene Chemical group CC1=CC=C(C)C=C1 URLKBWYHVLBVBO-UHFFFAOYSA-N 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 6
- 238000001914 filtration Methods 0.000 description 6
- GOUHYARYYWKXHS-UHFFFAOYSA-N 4-formylbenzoic acid Chemical compound OC(=O)C1=CC=C(C=O)C=C1 GOUHYARYYWKXHS-UHFFFAOYSA-N 0.000 description 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical group [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910000510 noble metal Inorganic materials 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000011437 continuous method Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 238000005984 hydrogenation reaction Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- LPNBBFKOUUSUDB-UHFFFAOYSA-N p-toluic acid Chemical compound CC1=CC=C(C(O)=O)C=C1 LPNBBFKOUUSUDB-UHFFFAOYSA-N 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 229910052762 osmium Inorganic materials 0.000 description 1
- SYQBFIAQOQZEGI-UHFFFAOYSA-N osmium atom Chemical compound [Os] SYQBFIAQOQZEGI-UHFFFAOYSA-N 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Filtering Materials (AREA)
- Catalysts (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明はフィルターに関する。詳
しくは溶液から固形異物を除去するための溶液濾過用フ
ィルターに関する。The present invention relates to filters. More specifically, the present invention relates to a solution filtration filter for removing solid foreign matter from a solution.
【０００２】[0002]
【従来の技術】溶液から固形異物を除去する用途は多く
存在する。例えば、テレフタル酸は、通常パラキシレン
の液相酸化によって製造される。しかしながら、ポリエ
ステル等の製品にしたときの着色の原因である４−カル
ボキシベンズアルデヒド等の不純物を多く含むものであ
りこれを除去することが望ましい。従って、一般に、粗
製テレフタル酸の水溶液を２００〜４００℃の高温で、
貴金属含有触媒の存在下、接触処理または水素添加処理
を行なう。該精製処理後には、触媒の微粉粒子等の固形
異物が含まれるので、これを除去するために、テレフタ
ル酸水溶液を濾過する必要がある。BACKGROUND OF THE INVENTION There are many uses for removing solid foreign matter from solutions. For example, terephthalic acid is usually produced by liquid phase oxidation of para-xylene. However, it contains a large amount of impurities such as 4-carboxybenzaldehyde, which cause coloring in products such as polyester, and it is desirable to remove these. Therefore, generally, an aqueous solution of crude terephthalic acid is heated at a high temperature of 200 to 400 ° C.
The contact treatment or the hydrogenation treatment is performed in the presence of the noble metal-containing catalyst. After the purification treatment, solid foreign substances such as fine powder particles of the catalyst are contained. Therefore, it is necessary to filter the terephthalic acid aqueous solution in order to remove the foreign substances.
【０００３】上記精製処理後のテレフタル酸水溶液は、
高温かつ高腐蝕性であるので、従来、焼結チタン等の金
属材料または多孔性炭素床等を濾過材として使用してい
た（特公昭５１−３２６１８）。[0003] The terephthalic acid aqueous solution after the above purification treatment is
Conventionally, a metal material such as sintered titanium or a porous carbon bed or the like has been used as a filtering material because of its high temperature and high corrosiveness (Japanese Patent Publication No. 51-32618).
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、金属材
料を濾過材とした場合、耐蝕性、機械的強度の問題があ
る。また、上記の濾過材を用いた場合、従来、粒径が２
０μｍ程度以下の特に微細な粒子の除去が充分ではなか
った。該微細粒子がテレフタル酸に混入した場合の問題
としては、例えばテレフタル酸よりポリエステルを製造
し繊維とした場合の糸切れ、フィルムとした場合のフィ
ルム表面の白化等のトラブルの原因のひとつとなること
が考えられる。以上のように溶液から固形異物を除去す
る場合、特に上記のテレフタル酸水溶液のような高温か
つ高腐蝕性の溶液においては、これに充分適用できる溶
液濾過用フィルターが望まれていた。However, when a metal material is used as a filtering material, there are problems of corrosion resistance and mechanical strength. In addition, when the above-mentioned filtering material is used, conventionally, the particle size is 2
Removal of particularly fine particles of about 0 μm or less was not sufficient. As a problem when the fine particles are mixed into terephthalic acid, for example, it is one of the causes of troubles such as thread breakage when a polyester is produced from terephthalic acid and used as a fiber, and whitening of the film surface when a film is used. Can be considered. As described above, in the case of removing solid foreign matter from a solution, especially for a high-temperature and highly corrosive solution such as the above-mentioned terephthalic acid aqueous solution, a solution filtration filter which can be sufficiently applied to the solution has been desired.
【０００５】[0005]
【課題を解決するための手段】本発明者等は上記実情に
鑑み、高温かつ高腐蝕性の溶液中の微細の固形異物を効
率よく除去する方法について種々検討した結果、濾過材
としてカーボンファイバーを用いた特定構造の糸巻きタ
イプのフィルターを用いることが適当であることを見い
出し、本発明に到達した。In view of the above circumstances, the present inventors have conducted various studies on a method for efficiently removing fine solid foreign matter in a high-temperature and highly corrosive solution. The present inventors have found that it is appropriate to use a thread-wound type filter having the specific structure used, and have reached the present invention.
【０００６】すなわち、本発明の要旨は、少なくとも一
端が開放された孔を有するボビンの側面をカーボンファ
イバー・マルチフィラメントの撚糸で巻回被覆してなる
フィルターに存する。[0006] That is, the gist of the present invention resides in a filter in which at least one side of a bobbin having a hole opened at one end is wound and covered with a twisted carbon fiber multifilament yarn.
【０００７】以下、本発明につき詳細に説明する。本発
明のフィルターを図面を用いながら説明するに、図１
は、本発明のフィルターの１例を示す全体斜視図、図２
は図１のフィルターの断面図である。このフィルターは
通常、１対のフランジ２，２′と、穿孔５を有するボビ
ン１から構成され、上記フランジ２，２′の間に位置す
るボビン１上に巻線３が施されている。Hereinafter, the present invention will be described in detail. The filter of the present invention will be described with reference to the drawings.
FIG. 2 is an overall perspective view showing an example of the filter of the present invention, and FIG.
2 is a cross-sectional view of the filter of FIG. This filter usually comprises a pair of flanges 2, 2 'and a bobbin 1 having a perforation 5, and a winding 3 is provided on the bobbin 1 located between the flanges 2, 2'.
【０００８】巻線３は、カーボンファイバー（フィラメ
ント単糸径は通常１〜２０μｍ、好ましくは５〜１０μ
ｍ）の短糸で、通常、長さが１〜１００ｍｍ、好ましく
は５〜３０ｍｍのものを紬いで糸状（マルチフィラメン
ト）とし、その紬糸径が通常０．２〜５ｍｍ、好ましく
は１〜３ｍｍとなるようにして、更に該紬糸を、通常２
〜５本撚り合わせて、通常２〜１０ｍｍ径とした太糸で
ある。また、巻線３は、前記の短糸と同じフィラメント
単糸径の連続糸を通常５０〜１０００本集束し、適度に
ねじりを加えてマルチフィラメントとし、更にこれを、
通常２〜１０本撚り合わせたものでもよい。該太糸は、
通常の方法で巻回し、ボビン１を好ましくは完全に覆
い、密接した均一の巻線の分布を与えるようにし、巻き
厚は、通常０．５〜５ｃｍ、好ましくは1 〜３ｃｍとす
る。また、密接した均一の巻線の分布を得るためには、
綾角を１０〜２０°とするのが好ましい。The winding 3 is made of carbon fiber (filament single yarn diameter is usually 1 to 20 μm, preferably 5 to 10 μm
m) The short yarn having a length of usually 1 to 100 mm, preferably 5 to 30 mm is formed into a thread form (multifilament), and the pongee yarn diameter is usually 0.2 to 5 mm, preferably 1 to 3 mm. So that the pongee yarn is usually 2
It is a thick yarn having a diameter of usually 2 to 10 mm by twisting up to 5 strands. In addition, the winding 3 usually bundles 50 to 1000 continuous yarns having the same filament single yarn diameter as the short yarn, and twists the yarn appropriately to form a multifilament.
Usually, two to ten strands may be used. The thick thread is
It is wound in the usual way, preferably covering the bobbin 1 completely, so as to give a close and even distribution of the windings, the winding thickness is usually 0.5-5 cm, preferably 1-3 cm. Also, to obtain a close and even distribution of windings,
The helix angle is preferably set to 10 to 20 °.
【０００９】上記の構成を採用することにより、同じカ
ーボンファイバーを素材とした不織布等と比較して、カ
ーボンファイバーの充てん状態が著しく緻密となる。フ
ィルターの実際の使用方法としては、ボビン１の空胴４
より溶液を供給することも可能であるが、好ましくは、
巻線３の外側から溶液を供給し、空胴４より処理液を取
り出す方法が採用される。By adopting the above-mentioned structure, the filled state of the carbon fiber becomes extremely dense as compared with a nonwoven fabric or the like using the same carbon fiber as a material. The actual use of the filter is as follows.
It is possible to supply more solution, but preferably
A method of supplying a solution from the outside of the winding 3 and taking out the processing liquid from the cavity 4 is adopted.
【００１０】本発明のフィルターの処理対象となる溶液
の種類は特に限定されるものではないが、前記のテレフ
タル酸水溶液のような高温かつ高腐蝕性の溶液において
好適である。テレフタル酸は、通常、分子状酸素を用い
るパラキシレンの液相酸化によって製造される。これに
より得られた粗製テレフタル酸は、通常、重量基準で１
００〜１０，０００ｐｐｍの不純物、例えば、４−カル
ボキシベンズアルデヒド、Ｐ−トルイル酸等を含む。こ
れら不純物は、テレフタル酸を原料としてポリエステル
等の製品にしたときの着色の原因となるのでこれをでき
るだけ除去することが望ましい。従って、一般に、粗製
テレフタル酸の水溶液を２００〜４００℃の高温で、貴
金属含有触媒の存在下、接触処理または水素添加処理し
て精製を行う。該処理方法としては、通常２００〜４０
０℃の温度で、貴金属触媒の存在下で、通常、水素を導
入して行なわれる。貴金属源としては、パラジウム、ル
テニウム、ロジウム、オスミウム、イリジウム、白金等
あるいはこれらの金属酸化物から選ばれる。これらの金
属もしくは金属酸化物は触媒としてそのまま使用するこ
ともできるが、活性炭のごとき担体に担持したものが特
に有効である。以上の接触処理は、連続法あるいは回分
法の何れにも適用できるが、特に連続法に適している。
該処理後のテレフタル酸水溶液を濾過するフィルターと
して、本発明のフィルターが適当である。The type of solution to be treated by the filter of the present invention is not particularly limited, but is suitable for a high-temperature and highly corrosive solution such as the above-mentioned terephthalic acid aqueous solution. Terephthalic acid is usually produced by liquid phase oxidation of para-xylene using molecular oxygen. The crude terephthalic acid obtained in this way is usually 1% by weight.
It contains from 00 to 10,000 ppm of impurities such as 4-carboxybenzaldehyde, P-toluic acid and the like. Since these impurities cause coloring when a product such as polyester is made from terephthalic acid as a raw material, it is desirable to remove them as much as possible. Therefore, generally, an aqueous solution of crude terephthalic acid is subjected to contact treatment or hydrogenation treatment at a high temperature of 200 to 400 ° C. in the presence of a noble metal-containing catalyst to perform purification. The processing method is usually 200 to 40
The reaction is usually carried out at a temperature of 0 ° C. in the presence of a noble metal catalyst by introducing hydrogen. The noble metal source is selected from palladium, ruthenium, rhodium, osmium, iridium, platinum and the like or a metal oxide thereof. These metals or metal oxides can be used as they are as catalysts, but those supported on a carrier such as activated carbon are particularly effective. The above contact treatment can be applied to either the continuous method or the batch method, but is particularly suitable for the continuous method.
The filter of the present invention is suitable as a filter for filtering the aqueous terephthalic acid solution after the treatment.
【００１１】[0011]
【実施例】次に本発明について実施例および比較例をあ
げて、更に具体的に説明するが、本発明はその要旨を超
えない限り、以下の実施例に限定されるものではない。Next, the present invention will be described more specifically with reference to examples and comparative examples. However, the present invention is not limited to the following examples unless it exceeds the gist thereof.
【００１２】実施例１ パラキシレンを酢酸溶媒中で液相酸化して得られた粗テ
レフタル酸を２５０℃で純水に溶解し、３０重量％のテ
レフタル酸水溶液とした。該水溶液を更に加熱し、粒状
活性炭に０．５％のパラジウムを担持させた触媒を充填
した反応塔に、温度２９０℃、圧力８０ｋｇ／ｃｍ2 の
条件下、５重量部／ｈｒで通液するとともに、反応塔入
口部より１．２容量部／ｈｒの水素を供給した。反応塔
から流出してくるテレフタル酸水溶液を下記フィルター
に通過させて固形異物の除去を行った。フィルターの圧
損を測定したところ、連続運転を開始して６ケ月経過後
に初期値の約２倍となったので運転を中止した。６ケ月
の連続運転中、５〜１０μｍの固形異物の除去率は９５
％であった。なお、異物の除去率は粒度分布計により測
定した。Example 1 Crude terephthalic acid obtained by subjecting para-xylene to liquid phase oxidation in an acetic acid solvent was dissolved in pure water at 250 ° C. to obtain a 30% by weight terephthalic acid aqueous solution. The aqueous solution is further heated and passed through a reaction column filled with a catalyst having 0.5% palladium supported on granular activated carbon at a temperature of 290 ° C. and a pressure of 80 kg / cm 2 at 5 parts by weight / hr. At the same time, 1.2 parts by volume / hr of hydrogen was supplied from the inlet of the reaction tower. The terephthalic acid aqueous solution flowing out of the reaction tower was passed through the following filter to remove solid foreign substances. When the pressure loss of the filter was measured, the continuous operation was started, and after 6 months had elapsed, the operation was stopped because it became about twice the initial value. During the continuous operation for 6 months, the removal rate of solid foreign matter of 5 to 10 μm is 95
%Met. The foreign matter removal rate was measured by a particle size distribution meter.
【００１３】（フィルターの構造） 穿孔されたボビン：内径２５ｍｍ、外径３０ｍｍ フランジ：外径８０ｍｍ、フランジ間の間隔１０００ｍ
ｍ カーボンファイバー巻線：糸径８μｍ、長さ１０〜１５
ｍｍのカーボンファイバーのマルチフィラメント（集束
数約５００本）を紬いで糸状とした紬糸を３本で撚り合
わせることにより得た太糸（糸径３．２ｍｍ）を綾角１
５°で厚さ１５ｍｍに巻回。(Structure of Filter) Perforated bobbin: inner diameter 25 mm, outer diameter 30 mm Flange: outer diameter 80 mm, spacing between flanges 1000 m
m Carbon fiber winding: yarn diameter 8 μm, length 10 to 15
mm thick carbon fiber multifilaments (about 500 bundles) are threaded into three thread-like pongee yarns, and a thick yarn (yarn diameter 3.2 mm) obtained by twisting three yarns
Wound to a thickness of 15mm at 5 °.
【００１４】比較例１ 実施例１で用いたフィルターを下記フィルターに代えた
以外は実施例１と同様に実施したところ、連続運転５０
日で圧損が初期値の約２倍となったので運転を中止し
た。また、この間の５〜１０μｍの固形異物の除去率は
７５％であった。Comparative Example 1 The same operation as in Example 1 was performed except that the filter used in Example 1 was changed to the following filter.
The operation was stopped because the pressure loss became about twice the initial value every day. During this period, the removal rate of 5 to 10 μm solid foreign matter was 75%.
【００１５】（フィルターの構造）フィラメント単糸径
８μｍのカーボンファイバーを用いて作成した不織布
（嵩密度０．０６ｇ／ｃｍ3 、厚さ１０ｍｍ）とカーボ
ンクロス（１０メッシュ、厚さ１ｍｍ）を交互に６段積
み重ねて厚さ１５ｍｍに圧縮し所定寸法に切断した後、
これを実施例１で用いたフランジ間の穿孔されたボビン
に巻きつけて作成した。(Structure of Filter) A non-woven fabric (bulk density: 0.06 g / cm 3 , thickness: 10 mm) made of carbon fiber having a single filament diameter of 8 μm and carbon cloth (10 mesh, thickness: 1 mm) are alternately formed. After stacking 6 stages, compressing to a thickness of 15 mm, and cutting to predetermined dimensions,
This was wound around a bobbin perforated between the flanges used in Example 1 to make it.
【００１６】[0016]
【発明の効果】本発明のフィルターによれば、高温、高
腐食性の溶液中の微細な固形異物を効率的に、かつ長期
間に亘り安定に除去することができる。工業的には、塩
酸、硫酸、硝酸等の無機強酸類や酢酸、テレフタル酸等
の有機酸類の製造工程で生ずる酸溶液の処理に好適であ
る。According to the filter of the present invention, fine solid foreign matter in a high-temperature, highly corrosive solution can be efficiently and stably removed over a long period of time. Industrially, it is suitable for treating an acid solution generated in a process of producing inorganic strong acids such as hydrochloric acid, sulfuric acid and nitric acid, and organic acids such as acetic acid and terephthalic acid.
【図１】本発明のフィルターの１例を示す全体斜視図で
ある。FIG. 1 is an overall perspective view showing one example of a filter of the present invention.
【図２】図１におけるフィルターの断面図である。FIG. 2 is a cross-sectional view of the filter in FIG.
１ ：ボビン ２ ：フランジ ３ ：巻線 ４ ：空胴 ５ ：穿孔 1: bobbin 2: flange 3: winding 4: cavity 5: drilling
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０７Ｃ 63/26 2115−4Ｈ Ｃ０７Ｃ 63/26 Ｌ (56)参考文献 特開 昭56−28615（ＪＰ，Ａ) 特開 平２−171234（ＪＰ，Ａ) 実開 平２−57123（ＪＰ，Ｕ) 実開 平１−170417（ＪＰ，Ｕ) 実開 平５−4013（ＪＰ，Ｕ) 実公 昭63−23940（ＪＰ，Ｙ２)──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 6 Identification number Agency reference number FI Technical indication location C07C 63/26 2115-4H C07C 63/26 L (56) References JP-A-56-28615 (JP) JP-A-2-171234 (JP, A) JP-A-2-57123 (JP, U) JP-A-1-170417 (JP, U) JP-A-5-4013 (JP, U) 63-23940 (JP, Y2)
Claims (7)
ボビンの側面をカーボンファイバー・マルチフィラメン
トの撚糸で巻回被覆してなるフィルター。1. A filter comprising a bobbin having at least one open end and a side surface wound with a carbon fiber multifilament twisted yarn.
１００ｍｍのカーボンファイバーを紬いで糸状としたマ
ルチフィラメントを撚り合わせたものであることを特徴
とする請求項１のフィルター。2. The twisted yarn has a single yarn diameter of 1 to 20 μm and a length of 1 to 20 μm.
2. The filter according to claim 1, wherein the multifilament is formed by twisting 100 mm carbon fiber into a thread shape.
集束し、ねじりを加えたマルチフィラメントを撚り合わ
せたものであることを特徴とする請求項１のフィルタ
ー。3. The filter according to claim 1, wherein the twisted yarn is obtained by bundling continuous yarns having a single yarn diameter of 1 to 20 μm, and twisting multifilaments obtained by twisting.
特徴とする請求項２又は３のフィルター。4. The filter according to claim 2, wherein the diameter of the twisted yarn is 2 to 10 mm.
徴とする請求項１ないし４のいずれかに記載のフィルタ
ー。5. The filter according to claim 1, wherein the thickness of the filter is 0.5 to 5 cm.
を有するボビンに該孔の全体を含み、所定間隔をあけて
２枚のフランジが設置され、該フランジ間においてボビ
ンの側面をカーボンファイバー・マルチフィラメントの
撚糸で巻回被覆してなる請求項１ないし５のいずれかに
記載のフィルター。6. A bobbin having a plurality of holes at least one end of which is open, two flanges are provided at a predetermined interval, including the entirety of the holes, and a side of the bobbin is provided between the flanges by a carbon fiber. The filter according to any one of claims 1 to 5, which is wound and covered with a multifilament twisted yarn.
であることを特徴とする請求項１ないし６のいずれかに
記載のフィルター。7. The winding angle of the twisted yarn is 10 to 20 °.
The filter according to any one of claims 1 to 6, wherein
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7000694A JP2713198B2 (en) | 1995-01-06 | 1995-01-06 | filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7000694A JP2713198B2 (en) | 1995-01-06 | 1995-01-06 | filter |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3275734A Division JP2582970B2 (en) | 1991-10-23 | 1991-10-23 | Method for removing solid foreign matter from terephthalic acid aqueous solution |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07284618A JPH07284618A (en) | 1995-10-31 |
| JP2713198B2 true JP2713198B2 (en) | 1998-02-16 |
Family
ID=11480878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7000694A Expired - Lifetime JP2713198B2 (en) | 1995-01-06 | 1995-01-06 | filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2713198B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4256388B2 (en) * | 2003-04-01 | 2009-04-22 | 日鉱金属株式会社 | Tantalum sputtering target |
| JP2009034646A (en) * | 2007-08-03 | 2009-02-19 | Kurita Water Ind Ltd | Pincushion filter and water treatment method |
| CN105384223A (en) * | 2014-09-09 | 2016-03-09 | 浙江久新空气净化科技有限公司 | Filter cloth capable of forming micro-electrolysis and application of filter cloth |
| CN114288720B (en) * | 2021-12-31 | 2023-01-03 | 武汉大学 | Carbon fiber filter, regeneration method thereof and carbon fiber filter device |
| CN114314957B (en) * | 2021-12-31 | 2023-11-24 | 武汉大学 | Electrode for electric flocculation-fiber filtering water treatment device, electric flocculation-fiber filtering water treatment device and use method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4278551A (en) * | 1979-07-30 | 1981-07-14 | Amf Incorporated | Wound cartridge filters |
| JPS6323940U (en) * | 1986-07-28 | 1988-02-17 | ||
| JPH0612809Y2 (en) * | 1988-05-23 | 1994-04-06 | 東洋濾紙株式会社 | Nonwoven Wound Laminated Cartridge Filter with Net |
| JPH0719540Y2 (en) * | 1988-10-13 | 1995-05-10 | 三菱レイヨン株式会社 | Filter cylinder |
| JP2645118B2 (en) * | 1988-12-23 | 1997-08-25 | 大阪瓦斯株式会社 | Manufacturing method of laminate |
| JPH054013A (en) * | 1991-04-26 | 1993-01-14 | Toyota Autom Loom Works Ltd | Cylindrical filter |
-
1995
- 1995-01-06 JP JP7000694A patent/JP2713198B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07284618A (en) | 1995-10-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0275681B1 (en) | Ammonia oxidation catalyst pack | |
| JP2713198B2 (en) | filter | |
| JP3804150B2 (en) | Method for producing high purity terephthalic acid | |
| EP1497252A1 (en) | Method of removing iron contaminants from liquid streams during the manufacture and/or purification of aromatic acids | |
| BG99382A (en) | Wires of spiral-type element, assemblies of them and their use as catalysts and/or for the regeneration of precious metals | |
| JP4055913B2 (en) | Method for producing high purity terephthalic acid | |
| JP3939367B2 (en) | Method for producing high purity terephthalic acid | |
| US20140008577A1 (en) | Method of Recovering Aqueous N-Methylmorpholine-N-Oxide Solution Used in Production of Lyocell Fiber | |
| JP2582970B2 (en) | Method for removing solid foreign matter from terephthalic acid aqueous solution | |
| JP2004149393A (en) | Purification method of inert gas | |
| DE68905512T2 (en) | METHOD FOR REACTIVATING A GROUP VIII PRECIOUS METAL CATALYST FOR USE IN PURIFYING RAW TEREPHTHALIC ACID. | |
| US20040093697A1 (en) | Method of crystallization | |
| JP2582970C (en) | ||
| JP2010227841A (en) | Endotoxin decomposing apparatus, purified water production system including the same, purified water production system for artificial dialysis, and endotoxin decomposing method | |
| JP5277688B2 (en) | Water purification device and water purification method | |
| CN1088622C (en) | Palladium catalyst with carrier of titanium oxide-alumina compound, and its preparing process and application | |
| JP2013202215A (en) | Air cleaner | |
| JP2001205097A (en) | Metal catalyst-stuck carrier, method for preparing it and method for treating active oxygen source-containing liquid by using it | |
| JP3269508B2 (en) | Method for producing high-purity isophthalic acid | |
| JP2002542213A (en) | Method for producing and purifying aromatic acid | |
| JP4121371B2 (en) | Purification of crude terephthalic acid and catalyst containing carbon fiber suitable for this purpose | |
| JPH0466553A (en) | Production of high-purity terephthalic acid | |
| JPH05309221A (en) | Cleaning method | |
| JPH0596111A (en) | Reproducing method of ceramic filter | |
| JPH05337319A (en) | Method for removing carbon monoxide in inert gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20071031 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081031 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081031 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091031 Year of fee payment: 12 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091031 Year of fee payment: 12 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101031 Year of fee payment: 13 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111031 Year of fee payment: 14 |
|
| EXPY | Cancellation because of completion of term |