JPS5815447B2 - Tungsten Enkabutsuno Seizouhouhou - Google Patents
Tungsten Enkabutsuno SeizouhouhouInfo
- Publication number
- JPS5815447B2 JPS5815447B2 JP50045833A JP4583375A JPS5815447B2 JP S5815447 B2 JPS5815447 B2 JP S5815447B2 JP 50045833 A JP50045833 A JP 50045833A JP 4583375 A JP4583375 A JP 4583375A JP S5815447 B2 JPS5815447 B2 JP S5815447B2
- Authority
- JP
- Japan
- Prior art keywords
- tungsten
- present
- seizouhouhou
- enkabutsuno
- chloride
- 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
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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Inorganic Compounds Of Heavy Metals (AREA)
Description
【発明の詳細な説明】 本発明はタングステン塩化物の製造方法に関する。[Detailed description of the invention] The present invention relates to a method for producing tungsten chloride.
さらに詳しくは炭素質の存在下でタングステン酸ナトリ
ウムに塩素ガスを反応させてタングステン塩化物を製造
する方法に関する。More specifically, the present invention relates to a method for producing tungsten chloride by reacting sodium tungstate with chlorine gas in the presence of carbonaceous material.
タングステン炭化物は極めて硬いので各種の超硬工具と
して多く使用されている。Tungsten carbide is extremely hard, so it is widely used in various carbide tools.
超硬合金の加工は種々な方法で行われているがその際発
生するスクラップは加工の方法により型状、組成が異な
りそれぞれに対応したスクラップの再生方法が検討され
ている。Cemented carbide is processed by various methods, and the scrap generated during this process has different shapes and compositions depending on the processing method, and methods for recycling scrap corresponding to each method are being investigated.
本発明者らは超硬合金スクラップ、スラッジなどの含タ
ングステン化合物からタングステンを回収する方法につ
き従来から種々な方法を研究していたが、タングステン
系超硬合金を電解加工するさいスラッジとして発生する
タングステン酸ナトリウムを塩素化して、これに含まれ
ているタングステンを塩化物として回収するさい、塩素
化反応系に炭素質を添加すると極めて温和な条件でタン
グステンの塩化物が得られることを見出し本発明を完成
した。The present inventors have been researching various methods for recovering tungsten from tungsten-containing compounds such as cemented carbide scrap and sludge. When chlorinating sodium chloride and recovering the tungsten contained therein as chloride, the inventors discovered that tungsten chloride could be obtained under extremely mild conditions by adding carbon to the chlorination reaction system, and developed the present invention. completed.
すなわち本発明は、炭素質の存在下でタングステン酸ナ
トリウムに塩素ガスを反応させてタングステン塩化物を
製造することを特徴とするものである。That is, the present invention is characterized in that tungsten chloride is produced by reacting sodium tungstate with chlorine gas in the presence of carbonaceous material.
反応系に炭素質が存在しないと約８００℃以上の高温で
始めてタングステン塩化物が得られるが、本発明の方法
の炭素質を該反応系に添加して反応を行なうと４００℃
近辺で反応は顕著となり、タングステンの塩化物が得ら
れる。If no carbonaceous material is present in the reaction system, tungsten chloride can only be obtained at a high temperature of about 800°C or higher; however, when the carbonaceous material of the method of the present invention is added to the reaction system and the reaction is carried out, the temperature reaches 400°C.
The reaction becomes significant in the vicinity and tungsten chloride is obtained.
本発明で反応系に添加する炭素質物質は特に制限される
ものではなく、通常のコークスなどが用いられる。In the present invention, the carbonaceous substance added to the reaction system is not particularly limited, and ordinary coke or the like may be used.
又、その添加量は化学量論的に求められる量で充分であ
る。Moreover, the addition amount is sufficient if it is determined stoichiometrically.
本発明の方法で用いる塩素ガスは該反応が進行する上に
充分な量を供給すれば良い。The chlorine gas used in the method of the present invention may be supplied in an amount sufficient for the reaction to proceed.
本発明は従来の方法に比較して極めて温和な条件でタン
グステン酸ナトリウムよりタングステン塩化物を得るこ
とができる。According to the present invention, tungsten chloride can be obtained from sodium tungstate under extremely mild conditions compared to conventional methods.
次に実施例で本発明を詳述する。Next, the present invention will be explained in detail with reference to Examples.
実施例 １
タングステン酸ナトリウム１０２と、粉末状炭素質３２
との混合物を石英製ボードに採り、横型の電機炉に設置
した反応器に挿入した後、反応器中の空気をアルゴンガ
スで充分置換し４００℃に加熱した。Example 1 Sodium tungstate 102 and powdered carbonaceous material 32
The mixture was taken on a quartz board and inserted into a reactor installed in a horizontal electric furnace.The air in the reactor was sufficiently replaced with argon gas and heated to 400°C.
処定温度に加熱後毎分３００ｍ１の速度で３時間塩素ガ
スを流通させた。After heating to the treatment temperature, chlorine gas was passed through at a rate of 300 ml/min for 3 hours.
反応後反応器をアルゴンガスで置換し、室温まで冷却し
た後生成物を取出しこれを分析した結果二塩化二酸化タ
ングステン、四塩化酸化タングステンの混合物であった
。After the reaction, the reactor was purged with argon gas and cooled to room temperature, and the product was taken out and analyzed. As a result, it was found to be a mixture of tungsten dichloride dioxide and tungsten tetrachloride oxide.
比較例 １
炭素質物質を添加せず、他は実施例１に準じて反応を行
なったが４５０℃ではタングステンの塩化物は全く生成
せず、８００℃で始めて塩化物が生成した。Comparative Example 1 A reaction was carried out in accordance with Example 1 except that no carbonaceous material was added, but no tungsten chloride was produced at 450°C, and chloride was produced only at 800°C.
又生成物は大部分が二塩化二酸化タングステンで他に少
量の四塩化酸化タングステンが含まれていた。The product was mostly tungsten dichloride dioxide and also contained a small amount of tungsten tetrachloride oxide.
生成物の分析は化学分析法とＸ線分析法を併用した。The product was analyzed using a combination of chemical analysis and X-ray analysis.
Claims (1)
ガスを反応させることを特徴とするタングステン塩化物
の製造方法。1. A method for producing tungsten chloride, which comprises reacting sodium tungstate with chlorine gas in the presence of carbonaceous material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50045833A JPS5815447B2 (en) | 1975-04-17 | 1975-04-17 | Tungsten Enkabutsuno Seizouhouhou |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50045833A JPS5815447B2 (en) | 1975-04-17 | 1975-04-17 | Tungsten Enkabutsuno Seizouhouhou |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS51120994A JPS51120994A (en) | 1976-10-22 |
| JPS5815447B2 true JPS5815447B2 (en) | 1983-03-25 |
Family
ID=12730216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50045833A Expired JPS5815447B2 (en) | 1975-04-17 | 1975-04-17 | Tungsten Enkabutsuno Seizouhouhou |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5815447B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5594671B2 (en) * | 2011-02-22 | 2014-09-24 | 独立行政法人日本原子力研究開発機構 | Acid chlorides and oxides in molten salts and methods for chlorination of these compound ions |
-
1975
- 1975-04-17 JP JP50045833A patent/JPS5815447B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS51120994A (en) | 1976-10-22 |
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