JP3148334B2 - Dry collection method of solid particles from gas fluid containing solid particles - Google Patents
Dry collection method of solid particles from gas fluid containing solid particlesInfo
- Publication number
- JP3148334B2 JP3148334B2 JP05645192A JP5645192A JP3148334B2 JP 3148334 B2 JP3148334 B2 JP 3148334B2 JP 05645192 A JP05645192 A JP 05645192A JP 5645192 A JP5645192 A JP 5645192A JP 3148334 B2 JP3148334 B2 JP 3148334B2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- solid particles
- solid
- particles
- fluid containing
- 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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- Inorganic Compounds Of Heavy Metals (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、金属粒子、金属酸化物
粒子などの固体粒子を含有するガス流体から、該固体粒
子を乾式で捕集する方法に関するものであり、特にハロ
ゲン化チタンを気相で酸化して製造される二酸化チタン
微粒子を工業的に捕集する方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for collecting solid particles from a gaseous fluid containing solid particles such as metal particles and metal oxide particles in a dry manner, and particularly to a method for collecting titanium halide. The present invention relates to a method for industrially collecting titanium dioxide fine particles produced by oxidation in a phase.
【０００２】[0002]
【従来の技術】一般に、気相反応によって製造した金属
粒子、金属酸化物粒子などの固体粒子は、サイクロンな
どの固−気分離器によって副生ガス、未反応ガス、希釈
ガスなどのガス流体から分離捕集される。しかしなが
ら、気相反応で発生する副生ガスや未反応ガスは、分離
捕集された固体粒子に取り込まれたり、該固体粒子の表
面に付着したりして完全に固−気分離することはむずか
しい。これらの付着ガスなどは固体粒子の滞留中、保管
中あるいは固体粒子の取扱い中に大部分は脱離して拡散
する。一方、近年の機能性素材の開発に伴い、種々のハ
ロゲン化金属や有機金属化合物を原料とした気相反応に
よる固体粒子の製造方法が開発されつつあるが、副生す
るガスが人体に有害である場合や爆発性または腐食性な
どを有するガスである場合が増えつつある。このような
場合には、固体粒子と副生ガスとの分離を充分に行うと
ともに、生成した固体粒子に付着したガスなども充分に
除去しておく必要がある。このため、固−気分離器で捕
集した固体粒子を一旦溶媒槽中に投入し、必要に応じて
アルカリなどで中和して、取り込まれたガスや付着した
ガスを除去しているのが現状である。たとえば、ハロゲ
ン化チタンを気相で酸化して白色の二酸化チタン顔料を
製造する方法においては、刺激性臭気をもつ塩素ガスが
副生する。生成する二酸化チタン微粒子は副生塩素ガス
や未反応四塩化チタンガスなどからサイクロンやバグフ
ィルターで分離捕集された後、水に投入されてスラリー
状とし、水酸化ナトリウムなどで中和して、付着した塩
素ガスや四塩化チタンなどを除去している。2. Description of the Related Art Generally, solid particles such as metal particles and metal oxide particles produced by a gas phase reaction are separated from gas fluids such as by-product gas, unreacted gas, and diluent gas by a solid-gas separator such as a cyclone. Separated and collected. However, the by-product gas and unreacted gas generated in the gas phase reaction are difficult to be completely taken into solid-gas separation by being taken into the solid particles separated and collected or attached to the surface of the solid particles. . Most of these adhered gases are desorbed and diffused while the solid particles are retained, stored, or handled. On the other hand, with the development of functional materials in recent years, a method for producing solid particles by a gas phase reaction using various metal halides and organometallic compounds as a raw material is being developed. In some cases, the number of explosive or corrosive gases is increasing. In such a case, it is necessary to sufficiently separate the solid particles from the by-product gas, and to sufficiently remove the gas attached to the generated solid particles. For this reason, the solid particles collected by the solid-gas separator are once charged into a solvent tank, neutralized with an alkali or the like as necessary, and the captured gas and attached gas are removed. It is the current situation. For example, in a method of producing a titanium dioxide pigment by oxidizing a titanium halide in a gas phase, chlorine gas having a pungent odor is produced as a by-product. The generated titanium dioxide fine particles are separated and collected from by-product chlorine gas or unreacted titanium tetrachloride gas using a cyclone or bag filter, then poured into water to form a slurry, neutralized with sodium hydroxide, etc. Chlorine gas and titanium tetrachloride are removed.
【０００３】[0003]
【発明が解決しようとする課題】前記のように固−気分
離して捕集した固体粒子をさらに、溶媒に投入して湿式
で処理する場合には、該湿式処理の後、濾過し、洗浄
し、乾燥し、あるいは解砕する必要があるため、捕集し
た固体粒子をその状態で利用する場合には甚だ不経済で
ある。また、捕集した固体粒子を輸送する場合、湿式処
理のスラリーの状態で輸送するのも甚だ不経済である。
このため、固体粒子の乾式処理法が種々提案されてい
る。たとえば、二酸化チタン微粒子に付着した塩素ガス
などを除去する方法として、気相反応で生成した二酸化
チタン微粒子を６００℃程度の温度で焼成する方法、４
００〜１０００℃の温度に保持された容器内に二酸化チ
タン微粒子を含有するガス流体を導入し、水蒸気あるい
は水蒸気とホウ酸などのガスと反応させる方法、二酸化
チタン微粒子を含有するガス流体の流れに対して水蒸気
や酸素などのガスを十字流になるように音速または超音
速で噴射する方法などが提案されている。しかしなが
ら、前記の方法では、付着ガスの除去が充分でなかった
り、多量の洗浄用のガスを必要とするため副生ガスの再
利用が図りにくく、また、高温度での処理の場合には多
くの時間と大きなエネルギーコストがかかり、水蒸気と
反応させて副生塩素ガスを除去する場合には生成した塩
化水素が設備を腐食するなど、いずれも適切な方法とは
いいがたい。In the case where the solid particles collected by solid-gas separation and collected as described above are further charged into a solvent and subjected to wet treatment, filtration and washing are performed after the wet treatment. Since it is necessary to dry or crush the solid particles, it is extremely uneconomical to use the collected solid particles in that state. Further, when transporting the collected solid particles, it is extremely uneconomical to transport the collected solid particles in the form of a slurry in a wet process.
For this reason, various dry treatment methods for solid particles have been proposed. For example, as a method of removing chlorine gas or the like attached to titanium dioxide fine particles, a method of firing titanium dioxide fine particles generated by a gas phase reaction at a temperature of about 600 ° C.
A method in which a gas fluid containing titanium dioxide fine particles is introduced into a container held at a temperature of 00 to 1000 ° C., and the gas fluid containing water vapor or steam reacts with a gas such as boric acid. On the other hand, a method of injecting a gas such as water vapor or oxygen at a sonic or supersonic speed so as to form a cross flow has been proposed. However, in the above-described method, it is difficult to reuse by-product gas because the attached gas is not sufficiently removed or a large amount of cleaning gas is required. It takes a long time and a large energy cost. In the case of removing by-produced chlorine gas by reacting with steam, the generated hydrogen chloride corrodes the equipment, which is not a suitable method.
【０００４】[0004]
【課題を解決するための手段】本発明者らは、固体粒子
を含有するガス流体から、該固体粒子を簡便に、かつ、
工業的に捕集する方法を種々検討した結果、まず、固体
粒子を含有したガス流体を固−気分離器に導入してガス
流体から該固体粒子を分離捕集し、次いで、該固体粒子
を多段床の洗浄器に導入してガス洗浄を行うと、固体粒
子が洗浄器内を移動している間に容易に該固体粒子に付
着したガスなどを固体粒子の取扱い上影響を及ぼさない
程度まで低減することができること、少量のガス量で洗
浄が行えるため洗浄に使用したガスがそのまま固−気分
離した副生ガスに混入しても、副生ガスの濃度の低下や
純度の低下を少なくすることができ、副生ガスの再利用
の妨げとはならないこと、高い温度に加熱する必要がな
いためエネルギーコストが小さく、簡易な設備で処理で
きることなどにより従来技術の問題点を解決できること
を見出した。すなわち、本発明は、固体粒子を含有する
ガス流体からの該固体粒子を簡便に、かつ、工業的に捕
集する方法を提供することにあり、特に、ハロゲン化チ
タンを気相で酸化して製造される二酸化チタン微粒子の
乾式捕集方法を提供する。Means for Solving the Problems The present inventors simply and easily convert a solid particle from a gas fluid containing the solid particle,
As a result of various studies on industrial collecting methods, first, a gas fluid containing solid particles was introduced into a solid-gas separator to separate and collect the solid particles from the gas fluid. When gas cleaning is performed by introducing the gas into a multi-stage bed cleaning device, the gas or the like that is easily attached to the solid particles while the solid particles are moving in the cleaning device is reduced to a level that does not affect the handling of the solid particles. Since the cleaning can be performed with a small amount of gas, even if the gas used for cleaning is directly mixed into the solid-gas separated by-product gas, a decrease in the concentration of the by-product gas and a decrease in purity are reduced. And that it does not hinder the reuse of by-product gas, and that it does not need to be heated to a high temperature, so that energy costs are small and that it can be processed with simple equipment to solve the problems of the conventional technology. . That is, the present invention is to provide a method for easily and industrially collecting solid particles from a gas fluid containing solid particles, and particularly, to oxidize titanium halide in the gas phase. Provided is a method for dry-collecting titanium dioxide fine particles to be produced.
【０００５】本発明は、気相反応によって得られる一般
的な金属粒子、金属酸化物粒子、金属窒化物粒子、金属
炭化物粒子などの固体粒子の捕集に使用できるが、有害
なガスが副生する気相反応によって製造される固体微粒
子の捕集には特に好適である。本発明において、まず、
種々の気相反応によって発生する、固体粒子を含有した
ガス流体を固−気分離器に導入して該固体粒子とガスと
を分離する。固−気分離器としては、粉体工業で一般的
に用いられている乾式の分離器が使用できるが、たとえ
ば、重力沈降室、サイクロンなどの遠心力分離器、バグ
フィルターなど濾過分離器、電気集塵機などの静電分離
器などの固−気分離器が挙げられる。分離した副生ガス
は再利用する。次に、固−気分離した前記固体粒子を洗
浄器に導入して、固体粒子をガス洗浄して捕集する。本
発明における洗浄器は、多孔板を少なくとも１段有する
容器であり、円筒カラム状のものが好ましい。洗浄器の
大きさは、固体粒子の処理量に応じて適宜設計すること
ができる。この洗浄器は固−気分離器と切り離して設置
してもよいが、固−気分離器から排出される固体粒子を
直接洗浄器に導入して処理し得るように固−気分離器の
下側に鉛直に直結するのが望ましい。洗浄器の上部から
固体粒子を導入すると、固体粒子は多孔板の孔を通り下
部方向に移動する。洗浄器の下部から導入した洗浄用の
ガスは、下方に移動している各固体粒子と接触して、固
体粒子の表面に付着したガスなどと置換し、固体粒子の
表面を洗浄する。脱離した付着ガスや洗浄用ガスなどは
洗浄器上部から排出され副生ガスに混入され、洗浄され
た固体粒子は洗浄器の下部に捕集され、系外に抜き出さ
れる。固体粒子のガス洗浄を本発明の洗浄器内で行う
と、固体粒子と洗浄用ガスとの接触時間を適宜設定する
ことができ、少量の洗浄用ガスで所望の洗浄効果が得ら
れ、かつ、洗浄された固体粒子を微粒子の状態で捕集す
ることができる。[0005] The present invention can be used for collecting solid particles such as general metal particles, metal oxide particles, metal nitride particles, and metal carbide particles obtained by a gas phase reaction. It is particularly suitable for collecting solid fine particles produced by a gas phase reaction. In the present invention, first,
A gas fluid containing solid particles generated by various gas phase reactions is introduced into a solid-gas separator to separate the solid particles from a gas. As the solid-gas separator, a dry separator generally used in the powder industry can be used. For example, a gravity sedimentation chamber, a centrifugal separator such as a cyclone, a filter separator such as a bag filter, an electric separator, etc. A solid-gas separator such as an electrostatic separator such as a dust collector is exemplified. The separated by-product gas is reused. Next, the solid particles subjected to the solid-gas separation are introduced into a washing machine, and the solid particles are gas-washed and collected. The washer in the present invention is a container having at least one perforated plate, and is preferably a cylindrical column. The size of the washer can be appropriately designed according to the throughput of the solid particles. This washer may be installed separately from the solid-gas separator, but may be installed below the solid-gas separator so that the solid particles discharged from the solid-gas separator can be introduced directly into the washer for processing. It is desirable to connect directly to the side. When the solid particles are introduced from the upper part of the washer, the solid particles move downward through the holes of the perforated plate. The cleaning gas introduced from the lower part of the cleaning device comes into contact with each of the solid particles moving downward, and replaces the gas or the like attached to the surface of the solid particles to clean the surface of the solid particles. The detached gas and cleaning gas are discharged from the upper part of the cleaning device and mixed with the by-product gas, and the washed solid particles are collected at the lower portion of the cleaning device and extracted out of the system. When the gas cleaning of the solid particles is performed in the cleaning device of the present invention, the contact time between the solid particles and the cleaning gas can be appropriately set, a desired cleaning effect can be obtained with a small amount of the cleaning gas, and The washed solid particles can be collected in the form of fine particles.
【０００６】本発明において、洗浄器に設置する多孔板
は、開孔率１５〜６０％のものが望ましい。開孔率は多
段床の床面積に対する多孔板の孔の開孔面積の比率のこ
とである。開孔率が１５％より少ないと多孔板の床に滞
留する固体粒子が多くなったり、ガスが孔を通過する時
の速度が速くなるため固体粒子の下方への移動が阻害さ
れて洗浄器の下部からの円滑な排出が困難となり処理効
率が低下する。また、開孔率が６０％より多いと固体粒
子の洗浄器内での滞留時間が少なくなり、所望の洗浄が
できにくくなるため好ましくない。前記の開孔率の範囲
になるように板に適当な大きさ、形の孔を開けるが、こ
の孔は、固体粒子が閉塞しない程度の大きさであればよ
く、１〜１０ｃｍ程度の孔が適当である。固体粒子を洗
浄器に導入する速度は、洗浄用ガスの空塔速度、多孔板
の開孔率などによって一概にはいえないが、洗浄器の床
の単位面積あたり１〜４０ｔ／ｈｒ・ｍ2 程度が適当で
ある。固体粒子の洗浄用ガスとしては、たとえば、窒
素、空気、酸素などの洗浄ガスが挙げられる。洗浄用ガ
スの空塔速度は、固体粒子の導入速度などによって適宜
設定することができる。必要に応じて前記の洗浄ガスに
アンモニア、ヒドラジン、アルキルアミン、水蒸気など
のガスを少量添加すると、固体粒子の表面に吸着した副
生ガスなどと反応し脱離して、より一層洗浄効果を高め
ることができるので好ましい。さらに、本発明において
は、各種振動機などで多孔板を振動させることにより、
多孔板の上に滞留した固体粒子を適宜移動させることが
できるので望ましい。洗浄器の材質は処理する固体粒子
によって適宜選択できるが、多孔板などに固体粒子が付
着し、固着するのを防止するうえから洗浄器内面、多孔
板、スリットなどをテフロンなどの滑択性のある材料で
作製するかまたは滑択性のある材料で表面仕上げしたも
のが好ましい。なお、洗浄器内の温度は普通、室温でよ
いが、必要に応じて室温〜２００℃の温度で操作するこ
ともできる。In the present invention, it is desirable that the perforated plate installed in the cleaning device has an opening ratio of 15 to 60%. The opening ratio is a ratio of the opening area of the holes of the perforated plate to the floor area of the multi-stage floor. If the porosity is less than 15%, more solid particles stay on the bed of the perforated plate, or the velocity of the gas passing through the holes becomes faster, so that the downward movement of the solid particles is hindered, and the cleaning device needs to be used. Smooth discharge from the lower part is difficult, and processing efficiency is reduced. On the other hand, if the porosity is more than 60%, the residence time of the solid particles in the cleaning device becomes short, and it becomes difficult to perform desired cleaning, which is not preferable. A hole of an appropriate size and shape is formed in the plate so as to be in the range of the opening ratio described above, and the hole may be a size that does not block solid particles, and a hole of about 1 to 10 cm is formed. Appropriate. The speed at which the solid particles are introduced into the cleaning device cannot be unconditionally determined depending on the superficial velocity of the cleaning gas, the opening ratio of the perforated plate, and the like, but is 1 to 40 t / hr · m 2 per unit area of the floor of the cleaning device. The degree is appropriate. Examples of the gas for cleaning solid particles include a cleaning gas such as nitrogen, air, and oxygen. The superficial velocity of the cleaning gas can be appropriately set according to the introduction speed of the solid particles. When a small amount of a gas such as ammonia, hydrazine, alkylamine, or water vapor is added to the cleaning gas as needed, it reacts with and desorbs by-product gas adsorbed on the surface of the solid particles to further enhance the cleaning effect. Is preferred. Furthermore, in the present invention, by vibrating the perforated plate with various vibrators or the like,
It is desirable because the solid particles staying on the perforated plate can be appropriately moved. The material of the washer can be selected as appropriate depending on the solid particles to be treated.However, in order to prevent solid particles from adhering to and sticking to the perforated plate, etc. Preference is given to one made of a material or surface finished with a slippery material. In addition, the temperature in the washing machine may be usually room temperature, but the operation may be performed at a temperature of room temperature to 200 ° C. as necessary.
【０００７】[0007]
実施例１ 四塩化チタンの気相酸化反応で二酸化チタン顔料を製造
する工程において、図１に示すように固−気分離器のバ
グフィルター１の固体粒子排出ダクトに振動多孔板を備
えた洗浄器２（内径０．３ｍ、長さ４ｍ）を鉛直に設置
した。この洗浄器は６枚のテフロン製多孔板３（径４ｃ
ｍ穴、６ｃｍピッチ正三角形）を０．６ｍ間隔で設置し
たものである。１段目の多孔板の下に設置したリングス
パージャー５から窒素２５ｍ3 ／ｈｒを導入し、さら
に、１段目の多孔板と２段目の多孔板の間に設置したリ
ングスパージャー６からアンモニアガス０．５Ｋｇ／ｈ
ｒを通気させた。四塩化チタンの酸化器から排出される
二酸化チタン微粒子含有ガス流体Ａ（固体粒子濃度１．
０ｔ／ｈｒ）をバグフィルターに導入し、二酸化チタン
微粒子とガスＢとを分離した（この二酸化チタン微粒子
は７００ｐｐｍの塩素を含有していた。また、分離した
ガスＢの塩素濃度は８５．３％であった。）。この分離
捕集した二酸化チタン微粒子を洗浄器に導入した。洗浄
器内での二酸化チタン微粒子の平均滞留時間は約８秒で
あった。洗浄器の下部から排出された二酸化チタン微粒
子は塩素１ｐｐｍ程度を吸着していたが、塩素臭もな
く、二酸化チタン微粒子を取り扱ううえでは支障がなか
った。また、洗浄処理後のガスが混入したガスＢの塩素
濃度は８４．１％であり、塩素ガスの再利用には全く支
障はなかった。Example 1 In a step of producing a titanium dioxide pigment by a gas phase oxidation reaction of titanium tetrachloride, a washing machine provided with a vibrating porous plate in a solid particle discharge duct of a bag filter 1 of a solid-gas separator as shown in FIG. 2 (inner diameter 0.3 m, length 4 m) was installed vertically. This washer has six Teflon perforated plates 3 (diameter 4c).
m holes, 6 cm pitch regular triangles) are installed at 0.6 m intervals. 25 m 3 / hr of nitrogen is introduced from the ring sparger 5 installed under the first perforated plate, and ammonia gas is supplied from the ring sparger 6 installed between the first perforated plate and the second perforated plate. 0.5kg / h
r was ventilated. Titanium dioxide fine particle-containing gas fluid A discharged from the titanium tetrachloride oxidizer (solid particle concentration 1.
(0 t / hr) was introduced into the bag filter to separate the titanium dioxide fine particles from the gas B (the titanium dioxide fine particles contained 700 ppm of chlorine. The chlorine concentration of the separated gas B was 85.3%. Met.). The separated and collected titanium dioxide fine particles were introduced into a washing machine. The average residence time of the titanium dioxide particles in the washer was about 8 seconds. The titanium dioxide fine particles discharged from the lower part of the washing machine adsorbed about 1 ppm of chlorine, but had no chlorine odor and did not hinder the handling of the titanium dioxide fine particles. Further, the chlorine concentration of the gas B into which the gas after the cleaning treatment was mixed was 84.1%, and there was no problem in reusing the chlorine gas.
【０００８】[0008]
【発明の効果】本発明は、金属粒子、金属酸化物粒子な
どの固体粒子を含有するガス流体から、該固体粒子を乾
式で捕集する方法であって、固体粒子を含有したガス流
体を固−気分離器に導入してガス流体から該固体粒子を
分離捕集し、次いで、該固体粒子を、多孔板を少なくと
も１段設けた多段床の洗浄器に導入しガス洗浄して捕集
する方法であり、固体粒子に付着したガスなどを固体粒
子の取扱い上影響を及ぼさない程度まで簡便に、かつ、
工業的に低減することができる。しかも、本発明は、洗
浄に使用するガスが比較的少量でよいため副生ガスの再
利用には全く支障がない方法である。According to the present invention, there is provided a method for collecting solid particles from a gas fluid containing solid particles such as metal particles and metal oxide particles in a dry manner, wherein the gas fluid containing solid particles is solidified. -The solid particles are separated and collected from the gas fluid by being introduced into a gas separator, and then the solid particles are introduced into a multi-stage bed washer provided with at least one perforated plate to be gas-washed and collected. It is a method, in a simple manner to the extent that gas and the like attached to the solid particles do not affect the handling of the solid particles, and
It can be reduced industrially. In addition, the present invention is a method that does not hinder the reuse of by-product gas because a relatively small amount of gas is used for cleaning.
【図１】バグフィルターと該バグフィルターの固体粒子
排出ダクトに設置した洗浄器を示した説明図である。FIG. 1 is an explanatory view showing a bag filter and a cleaning device installed in a solid particle discharge duct of the bag filter.
１ バグフィルター ２ 洗浄器 ３ 多孔板 ４ 振動機 ５ リングスパージャー ６ リングスパージャー Ａ 二酸化チタン微粒子含有ガス流体 Ｂ 排出されたガス DESCRIPTION OF SYMBOLS 1 Bag filter 2 Washer 3 Perforated plate 4 Vibrator 5 Ring sparger 6 Ring sparger A Gas fluid containing titanium dioxide fine particles B Discharged gas
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平１−145307（ＪＰ，Ａ) 特開 平２−217308（ＪＰ，Ａ) 特開 昭55−82701（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B01J 19/00 B01D 45/00 - 45/18 B01D 46/00 - 46/54 B04C 1/00 - 11/00 B22F 9/00 - 9/30 C01G 1/00 - 23/08 ────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-1-145307 (JP, A) JP-A-2-217308 (JP, A) JP-A-55-82701 (JP, A) (58) Field (Int.Cl. 7 , DB name) B01J 19/00 B01D 45/00-45/18 B01D 46/00-46/54 B04C 1/00-11/00 B22F 9/00-9/30 C01G 1 / 00-23/08
Claims (2)
離器に導入し、ガス流体から該固体粒子を分離捕集し、
次いで、該固体粒子を、開孔率が１５〜６０％の多孔板
を少なくとも１段設けた洗浄器に導入し、該固体粒子を
ガス洗浄して系外に抜き出す、固体粒子の乾式捕集方
法。A gas fluid containing solid particles is introduced into a solid-gas separator, and the solid particles are separated and collected from the gas fluid.
Then, the solid particles are introduced into a washing machine provided with at least one stage of a perforated plate having a porosity of 15 to 60%, and the solid particles are gas-washed and extracted out of the system. .
体粒子の乾式捕集方法。2. The method according to claim 1, wherein the perforated plate is a vibrating perforated plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05645192A JP3148334B2 (en) | 1992-02-06 | 1992-02-06 | Dry collection method of solid particles from gas fluid containing solid particles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05645192A JP3148334B2 (en) | 1992-02-06 | 1992-02-06 | Dry collection method of solid particles from gas fluid containing solid particles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05212232A JPH05212232A (en) | 1993-08-24 |
| JP3148334B2 true JP3148334B2 (en) | 2001-03-19 |
Family
ID=13027470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05645192A Expired - Lifetime JP3148334B2 (en) | 1992-02-06 | 1992-02-06 | Dry collection method of solid particles from gas fluid containing solid particles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3148334B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001287996A (en) * | 2000-04-03 | 2001-10-16 | Toho Titanium Co Ltd | Anatase-type titanium oxide single crystal |
| US10702816B2 (en) | 2013-03-07 | 2020-07-07 | M-I L.L.C. | Demister for capturing moist fine particulates |
| CN104857803A (en) * | 2015-06-01 | 2015-08-26 | 安徽诚泰环保工程有限公司 | Bag dust removal purifier |
| CN105214434A (en) * | 2015-11-13 | 2016-01-06 | 无锡桥阳机械制造有限公司 | A kind of air cleaner |
| CN105214435A (en) * | 2015-11-13 | 2016-01-06 | 无锡桥阳机械制造有限公司 | A kind of air cleaner |
-
1992
- 1992-02-06 JP JP05645192A patent/JP3148334B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05212232A (en) | 1993-08-24 |
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