JPH0611831U - Reactor with hollow double shaft stirrer - Google Patents

Reactor with hollow double shaft stirrer

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Publication number
JPH0611831U
JPH0611831U JP7644391U JP7644391U JPH0611831U JP H0611831 U JPH0611831 U JP H0611831U JP 7644391 U JP7644391 U JP 7644391U JP 7644391 U JP7644391 U JP 7644391U JP H0611831 U JPH0611831 U JP H0611831U
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JP
Japan
Prior art keywords
gas
stirrer
chlorine gas
pipe
chlorine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP7644391U
Other languages
Japanese (ja)
Inventor
甲子男 山口
Original Assignee
甲子男 山口
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 甲子男 山口 filed Critical 甲子男 山口
Priority to JP7644391U priority Critical patent/JPH0611831U/en
Publication of JPH0611831U publication Critical patent/JPH0611831U/en
Pending legal-status Critical Current

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Abstract

(57)【要約】 【目的】 本考案は攪拌器の中空攪拌棒の中にガス装入
用のパイプを設け、これより塩素ガスを吹き込んで、内
容物を溶解する。 【構成】 本考案は中空軸攪拌機の攪拌棒の中に塩素ガ
ス吹き込みパイプ3を設け、これより塩素ガスを塩酸溶
液中に吹き込み、攪拌器の廻転によってガスを細かい気
泡とし、気−液接触の効率を上げて、液中に分散される
白金族粉末を溶解するのに役立つ
(57) [Summary] [Objective] The present invention provides a gas charging pipe in a hollow stirring rod of a stirrer, and blows chlorine gas through the pipe to dissolve the contents. [Constitution] In the present invention, a chlorine gas blowing pipe 3 is provided in a stirring rod of a hollow shaft stirrer, and chlorine gas is blown into the hydrochloric acid solution from this, and the gas is turned into fine bubbles by the rotation of the stirrer so that gas-liquid contact can be achieved. Helps increase efficiency and dissolve platinum group powders dispersed in liquids

Description

【考案の詳細な説明】 (産業上の利用分野) この考案は白金族金属粉末の塩酸−塩素ガスによる溶解反応槽に関するもので ある。 (従来技術) 白金族のうち白金及びパラジウムは王水で溶解することもできるが、これ等 の塩化物を作るには更に脱硝し塩化しなければならない問題がある。 しかしロジウムは王水に溶けないから、これ等の金属粉末を塩化物とするために はオートクレーブを用いて、高温高圧で塩酸と塩素ガスに接触せしめて溶解する ことも行われているが、塩酸に耐えるオートクレーブは非常に高価であり、塩素 ガスを高温高圧で取り扱うため安全上の問題がある。 またロジウム粉末を80℃以上の高温で、塩酸と塩素ガスに接触させて溶解する 方法も請求されているが、溶解効率が悪くかつ塩素吹き込みパイプが攪拌器と接 触して破損するなどの問題がある。 (考案が解決しようとする課題) 本案は上記の問題点である高価なオートクレーブを使用せず、また高温高圧で 塩素ガスを取り扱う危険な作業を排除すること、また溶解効率が悪い等の欠点を 解消することである。 (課題を解決するための手段) いまその手段を図面について説明すると、第2図に示すように反応槽1の中央 に取り付けられた中空軸攪拌器2の中に、塩素ガスを吹き込むパイプ3を挿入す ることによって、反応槽の底に沈澱する金属粉と塩素ガスの接触が改善される。 また塩素ガスパイプの先端7から排出される気泡は、攪拌板6によって小さな気 泡となり、更に金属粉と塩素ガスの接触が改善され、かつ溶存塩素の濃度を高く することができる。 (作用効果) このようにすることによって、白金族金属粉末は塩素ガス並びに溶存塩素のア タックを激しく受ける様になり。また攪拌器の攪拌板6より塩素ガスパイプの先 端7が同じか、僅かに突出していることによって、溶液のエアーリフトによる逆 流が防止されるから安全である。また常圧のもとでしかも60℃以下の温度で、 容易に白金族金属粉を溶解することができるから反応槽は市販のPVC,FRP ,テフロン等を用いて製作することができるため、従来技術では困難と言われて いた白金族金属の塩酸−塩素ガスによる溶解が、安全に能率よく、かつ経済的に 出来るようになった。更に本考案の詳細を実施例によって説明する。 (実施例) 第1図は従来技術における反応槽で、攪拌器2と塩素ガス吹き込みパイプ3が 別個に、反応器1にセットされている。この型式では反応効率が低いので、高温 高圧で操作するようヒーター付のオートクレーブが採用されている。 第2図は本考案の具体例で、反応槽1の中央に取り付けられた中空軸攪拌器2 の軸の中に、塩素ガスパイプ3が挿入されている。3は軸2の中央に位置するよ う、ホルダー12によってスタンド11に固定される。パイプの先端7は攪拌板 6の底部より僅かに突出しており、1の底に沈降している白金族金属粉末13に 、更に接近することになるから塩素のアタックによる溶解が顕著になる。また気 泡となった塩素ガスは、6の廻転によって細かい泡となり気−液接触の効果が上 がり、溶存塩素の濃度が濃くなるため、白金族金属の溶解を促進させることがで きる。またパイプの先端7に多孔質のセラミックの栓をすれば、更に細かい気泡 とすることができるから、本案によれば大気圧のもとで、塩酸−塩素ガスによる 白金族金属粉末の溶解が可能になるのである。また本案による作業温度は常温か ら70℃の範囲がよく、最適温度は50〜60℃で作業する。従って反応槽及び 付属部品の材質は市販のFRP,テフロン,合成ゴム等で製作されている。なお 実験の結果、金属粉末の粒径は通常ブラックと呼ばれる黒色微粉末であることが 望ましい。以上述べたとおり本案によれば常圧でしかも低温度で、塩酸および塩 素ガスを取り扱うことができるため安全で、かつ経済的である。[Detailed description of the device]   (Industrial application field)   This invention relates to a dissolution reaction tank of platinum group metal powder by hydrochloric acid-chlorine gas. is there.   (Prior art)     Of the platinum group, platinum and palladium can be dissolved in aqua regia, but these There is a problem in that it is necessary to further denitrate and chloride in order to produce chloride. However, rhodium does not dissolve in aqua regia, so in order to make these metal powders chloride Is dissolved by contacting it with hydrochloric acid and chlorine gas at high temperature and high pressure using an autoclave. However, autoclaves that withstand hydrochloric acid are very expensive, and chlorine Since gas is handled at high temperature and high pressure, there is a safety problem. Also, rhodium powder is dissolved in contact with hydrochloric acid and chlorine gas at a high temperature of 80 ° C. or higher. Although a method is also claimed, the dissolution efficiency is poor and the chlorine injection pipe is in contact with the agitator. There is a problem such as being touched and damaged. (Issues to be solved by the device)   This plan does not use the expensive autoclave which is the above-mentioned problem, and does not operate at high temperature and high pressure. Eliminate the dangerous work of handling chlorine gas, and avoid the drawbacks such as poor dissolution efficiency. It is to cancel. (Means for solving the problem)   The means will now be described with reference to the drawing. As shown in FIG. Insert the pipe 3 for blowing chlorine gas into the hollow shaft stirrer 2 attached to the By doing so, the contact between the metal powder settled at the bottom of the reaction tank and chlorine gas is improved. Also, the bubbles discharged from the tip 7 of the chlorine gas pipe are small gas by the stirring plate 6. It becomes a bubble, the contact between metal powder and chlorine gas is improved, and the concentration of dissolved chlorine is increased. can do. (Action effect)   By doing so, the platinum group metal powder is made to contain chlorine gas and dissolved chlorine. You will be strongly tacked. Also, the tip of the chlorine gas pipe from the stirring plate 6 of the stirrer Since the end 7 is the same or slightly protruded, it is possible to reverse by the air lift of the solution. It is safe because the flow is prevented. Also, under normal pressure and at a temperature below 60 ° C, Since the platinum group metal powder can be easily dissolved, the reaction tank is a commercially available PVC or FRP It is said that it is difficult with the conventional technology because it can be manufactured using Teflon or the like. Dissolution of platinum group metals with hydrochloric acid-chlorine gas was safe, efficient and economical. I can do it. Further details of the present invention will be described with reference to embodiments. (Example)   FIG. 1 is a reaction tank in the prior art, in which the stirrer 2 and the chlorine gas injection pipe 3 are Separately set in the reactor 1. This type has low reaction efficiency, so high temperature An autoclave with a heater is used to operate at high pressure.   FIG. 2 is a specific example of the present invention, in which a hollow shaft stirrer 2 mounted in the center of the reaction tank 1 A chlorine gas pipe 3 is inserted in the shaft of the. 3 is in the center of axis 2 It is fixed to the stand 11 by the holder 12. The tip 7 of the pipe is a stirring plate In the platinum group metal powder 13 that is slightly protruding from the bottom of No. 6 and has settled at the bottom of No. 1 However, since it will be closer, the dissolution due to the attack of chlorine becomes remarkable. See again The chlorine gas that became bubbles becomes fine bubbles due to the rotation of 6 and the effect of gas-liquid contact is improved. As the concentration of dissolved chlorine increases, it is possible to accelerate the dissolution of platinum group metals. Wear. If a porous ceramic plug is attached to the tip 7 of the pipe, finer air bubbles Therefore, according to the present plan, hydrochloric acid-chlorine gas is used under atmospheric pressure. It is possible to dissolve the platinum group metal powder. In addition, is the working temperature according to the plan normal temperature To 70 ° C, and the optimum temperature is 50 to 60 ° C. Therefore the reaction tank and The material of the accessory parts is made of commercially available FRP, Teflon, synthetic rubber, etc. Note that As a result of the experiment, it is found that the particle size of the metal powder is a black fine powder usually called black. desirable. As described above, according to the present invention, hydrochloric acid and salt are kept at normal pressure and low temperature. It is safe and economical because it can handle elementary gas.

【図面の簡単な説明】 第1図は従来技術による反応槽の断面図、第2図は本考
案になる中空二重軸攪拌器付反応槽の断面図である。 1…反応槽、 2…中空軸攪拌器、 3…塩素ガス吹き
込みパイプ、 6…攪拌板、 7…パイプ先端、 11
…スタンド、 12…ホルダー、 13…金属粉末、
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view of a reaction vessel according to the prior art, and FIG. 2 is a sectional view of a reaction vessel with a hollow double shaft stirrer according to the present invention. DESCRIPTION OF SYMBOLS 1 ... Reaction tank, 2 ... Hollow shaft stirrer, 3 ... Chlorine gas injection pipe, 6 ... Stirrer plate, 7 ... Pipe tip, 11
… Stand, 12… Holder, 13… Metal powder,

Claims (1)

【実用新案登録請求の範囲】 攪拌器を有する気−液接触反応槽において イ.回転する中空軸攪拌器の軸のなかにガス管を挿入し
て、その先端からガスを吹き出して気−液を接触させ
る。 ロ.ガス管の先端が攪拌器の先端と同じ位置かまたは僅
かに突出している。 以上のごとく構成された中空二重軸攪拌器付反応槽。
[Claims for utility model registration] In a gas-liquid contact reaction tank having a stirrer, a. A gas pipe is inserted into the shaft of a rotating hollow shaft stirrer, and gas is blown from the tip of the gas pipe to bring the gas and liquid into contact with each other. B. The tip of the gas pipe is at the same position as the tip of the stirrer or slightly protrudes. A reaction vessel with a hollow double shaft stirrer configured as described above.
JP7644391U 1991-06-18 1991-06-18 Reactor with hollow double shaft stirrer Pending JPH0611831U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7644391U JPH0611831U (en) 1991-06-18 1991-06-18 Reactor with hollow double shaft stirrer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7644391U JPH0611831U (en) 1991-06-18 1991-06-18 Reactor with hollow double shaft stirrer

Publications (1)

Publication Number Publication Date
JPH0611831U true JPH0611831U (en) 1994-02-15

Family

ID=13605298

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7644391U Pending JPH0611831U (en) 1991-06-18 1991-06-18 Reactor with hollow double shaft stirrer

Country Status (1)

Country Link
JP (1) JPH0611831U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1043565A (en) * 1996-08-06 1998-02-17 Kubota Corp Agitator
WO2022004941A1 (en) * 2020-06-30 2022-01-06 주식회사 한테크 Powder plasma treatment device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1043565A (en) * 1996-08-06 1998-02-17 Kubota Corp Agitator
WO2022004941A1 (en) * 2020-06-30 2022-01-06 주식회사 한테크 Powder plasma treatment device

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