JPS58199806A - Production of metallic lithium powder - Google Patents
Production of metallic lithium powderInfo
- Publication number
- JPS58199806A JPS58199806A JP57081508A JP8150882A JPS58199806A JP S58199806 A JPS58199806 A JP S58199806A JP 57081508 A JP57081508 A JP 57081508A JP 8150882 A JP8150882 A JP 8150882A JP S58199806 A JPS58199806 A JP S58199806A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- li3n
- metallic lithium
- lithium
- metallic
- 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
Links
- 239000000843 powder Substances 0.000 title claims abstract description 52
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 229910052744 lithium Inorganic materials 0.000 title claims description 30
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims description 27
- IDBFBDSKYCUNPW-UHFFFAOYSA-N lithium nitride Chemical compound [Li]N([Li])[Li] IDBFBDSKYCUNPW-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000011261 inert gas Substances 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 238000005979 thermal decomposition reaction Methods 0.000 claims abstract description 11
- 230000004927 fusion Effects 0.000 claims description 3
- 239000010453 quartz Substances 0.000 abstract description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 15
- 229910052740 iodine Inorganic materials 0.000 abstract description 4
- 239000011630 iodine Substances 0.000 abstract description 4
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 abstract description 3
- 239000000155 melt Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 11
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 229910052786 argon Inorganic materials 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 4
- 229910052721 tungsten Inorganic materials 0.000 description 4
- 239000010937 tungsten Substances 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- RYZCLUQMCYZBJQ-UHFFFAOYSA-H lead(2+);dicarbonate;dihydroxide Chemical compound [OH-].[OH-].[Pb+2].[Pb+2].[Pb+2].[O-]C([O-])=O.[O-]C([O-])=O RYZCLUQMCYZBJQ-UHFFFAOYSA-H 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/16—Making metallic powder or suspensions thereof using chemical processes
- B22F9/30—Making metallic powder or suspensions thereof using chemical processes with decomposition of metal compounds, e.g. by pyrolysis
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Powder Metallurgy (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は、金属リチウム粉末の製造方法に閤し、更ＫＰ
Ｌ＜は、任意の粒径を有する金属リチウム粉末を、随時
、簡便に得ることが可能な金属リチウム粉末の製造方法
に―する。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a method for producing metallic lithium powder,
L< makes it possible to easily obtain metallic lithium powder having any particle size at any time.
従来、金属リチウム粉末社、金属リチウム自体が極めて
塑性に富むものであるために、これを機械的Ｋｌｌ砕し
て粉末とすることはできず、例えば、加熱１１１ｋした
金属リチウムを耐熱性の噴−器中に入れ、これを不活性
ガス中に噴霧し、冷却固化せしめる方法によりａｌ造さ
れている。Previously, Metal Lithium Powder Co., Ltd., was unable to mechanically crush metal lithium into powder because it was extremely plastic. Aluminium is produced by a method in which the aluminum is poured into a container, sprayed into an inert gas, and cooled and solidified.
しかしながら、このような方法ては、得られる金属リチ
ウム＠＊０粒径範囲が狭く、又、５００ｊ−以上の大き
な粒径を有するものが得られないという問題点を有して
いる。更に、上記し先方法では、金属リチウム１１＊を
大量に生産する場合には適するが、大がか）な設備を資
するえめに１少量のものを随時製造する必要がある場合
には、簡便さに欠けるという問題点を有している。However, such a method has the problem that the particle size range of metallic lithium@*0 obtained is narrow and that it is impossible to obtain particles having a large particle size of 500J- or more. Furthermore, the above-mentioned method is suitable for producing large amounts of metallic lithium 11*, but it is not convenient when it is necessary to produce small quantities at any time without requiring large-scale equipment. The problem is that it lacks.
〔発＠Ｏ１的〕
本実ＷＡｏａ的は、上記した問題点を解消し、任意の粒
径を有する金属リチウム粉末を、随時、筒便に得ること
が可能な金属リチウム粉末の製造方法を提供することに
ある。[Original @O1] The present invention by WAoa solves the above-mentioned problems and provides a method for producing metallic lithium powder that can conveniently obtain metallic lithium powder having any particle size at any time. There is a particular thing.
本発明の金属リチウム粉末の製造方法は、窒化リチウム
（ＬｉｎＮ）粉末を、不活性ガス雰囲気中又は減圧下に
おいて、加熱し、融着を防止しつつ熱分解せしめること
を特徴とするものである。The method for producing metallic lithium powder of the present invention is characterized by heating lithium nitride (LinN) powder in an inert gas atmosphere or under reduced pressure to thermally decompose it while preventing fusion.
以下Ｋｓｉ−いて、本発明を更ゝに評しくａｉ１４する
。The present invention will be further evaluated below.
本発明者らは、鋭意検討を重ねた結果、原料としてＬｉ
１Ｎ粉末を用いることにより、熱分解して得られる金属
リチウム粉末の粒径が容易に制御できることを見出し、
本発明を完成するに到った。As a result of extensive studies, the present inventors discovered that Li as a raw material
We discovered that the particle size of metallic lithium powder obtained by thermal decomposition can be easily controlled by using 1N powder,
The present invention has now been completed.
即ち、ＬＩＩＮは、室温において、酸素及び水蒸気を遮
断した状態では安定である。又、その粒径によって若干
相違するが、多少の水蒸気を含む空気中においても短時
間の処理であれば目立゛つた変化はなく、雀扱いが容易
なものである。That is, LIIN is stable at room temperature in a state where oxygen and water vapor are blocked. In addition, although the particle size varies slightly, there is no noticeable change even in air containing some water vapor if the treatment is carried out for a short period of time, and it is easy to handle.
そして、その融点（８４５Ｃ）付近では、リチウムと窒
素に分解する傾向が大きく、その分解蒸気圧は約３００
Ｔｏｒｒである。本発明は、このよりなｌｉ、Ｎの性質
を利用した本のである。Near its melting point (845C), it has a strong tendency to decompose into lithium and nitrogen, and its decomposition vapor pressure is approximately 300C.
Torr. The present invention is a book that utilizes the properties of li and N.
本発明において使用されるＬＬａＮ粉末は、所望とする
金属リチウム粉末と同程度の粒径を有するものであれば
よく、例えば、１μ−〜数■の平均粒径な有するものが
使用される。このようなＬｉ畠Ｎ粉末は、例えば、窒素
ガス中ヘリウム、アルゴン等の希ガス雰囲気中において
、ボールミル等の過當知られている粉砕方法を用いて容
易Ｋｌｌることができる。The LLaN powder used in the present invention may have a particle size comparable to that of the desired metal lithium powder, and for example, one having an average particle size of 1 μm to several μm is used. Such Li HatakeN powder can be easily crushed using a well-known pulverization method such as a ball mill in an atmosphere of a rare gas such as helium or argon in nitrogen gas, for example.
とのＬｉ５Ｎ粉末を、不活性ガス雰囲気中又は減圧下に
おいて、加熱し、−着を防止しつつ熱分解する。熱分解
時の加熱湯度は、原理的にはかな〕低くて屯よいが、５
６０〜７００Ｃであることが好ましい。５６０Ｃ未満で
は、他の条件によりＬｉ３Ｎの熱分解が充分起こらない
場合があり、一方、７００Ｃを超えると、減圧下におい
てはリチウムの蒸発が増加する。Li5N powder is heated in an inert gas atmosphere or under reduced pressure to thermally decompose it while preventing deposition. The heating temperature during pyrolysis is, in principle, low and good, but
It is preferable that it is 60-700C. If the temperature is less than 560C, thermal decomposition of Li3N may not occur sufficiently due to other conditions, while if it exceeds 700C, evaporation of lithium increases under reduced pressure.
熱分解して得られる金属リチウムは、上記温度範囲にお
いて液体であるために１金属粒同士が相互に融着して粗
大化するのを紡ぐことが必要である。Since metallic lithium obtained by thermal decomposition is liquid in the above temperature range, it is necessary to spin the metal particles so that they fuse together and become coarse.
不活性ガス雰囲気中での熱分解に際しては、Ｌｉ５Ｎ粉
末を不活性ガス中において緩やかに落下せしめるか、或
いは不活性ガス中に浮遊させて移送せしめ、それらの途
次に加熱部及び冷却部を順次設け、Ｌｉ、Ｎ粉末を通過
せしめることｋより、融着することなく金属リチウム粉
末を得ることかできる。この際の、加熱部におけるＬｉ
、Ｎ粉末の滞留時間或いは通過距離は、熱分解により生
成した窒素が冷却によって金属リチウムと再結合するこ
とがないような条件であればよい。即ち、窒素が金属リ
チウムから拡散又は流動により充分垂紐すればよ＜ ％
ＬｉＭＮ粉末の粒径、不活性ガス流量、熱分解温度等
の条件を（
適宜組み合わせて選択することが好ましい。During thermal decomposition in an inert gas atmosphere, the Li5N powder is allowed to fall gently in the inert gas, or is suspended in the inert gas and transferred, and the heating section and the cooling section are sequentially operated during the process. By passing the Li and N powders through the tube, it is possible to obtain metallic lithium powder without fusion. At this time, Li in the heating section
The residence time or passage distance of the N powder may be such that the nitrogen produced by thermal decomposition does not recombine with metallic lithium upon cooling. In other words, if nitrogen is sufficiently suspended from metallic lithium by diffusion or flow, <%
It is preferable to select appropriate combinations of conditions such as the particle size of the LiMN powder, the flow rate of inert gas, and the thermal decomposition temperature.
又、加熱方法としては、ＬｌｓＮの分解後はＬｔ液滴相
互の融着を防止するために′できるだけ早く冷却する仁
とが望ましいことから、不活性ガスは加熱せずＫＬｉｍ
Ｎ粉末だけを選択的に加熱する紡導加熱放射光等を用い
る方法が好ましい。In addition, as for the heating method, it is desirable to cool the inert gas as quickly as possible in order to prevent the Lt droplets from fusing with each other after decomposition of LlsN, so the inert gas is not heated.
A method using spinning heating radiation or the like that selectively heats only the N powder is preferred.
上記した不活性ガス雰囲気中にお砂る製造方法としては
、例えば、ｍ１図に示したような装置を用いて製造する
方法が挙げられる。第１図においては、窒化リチウム（
ＬｌｍＮ）粉末１を石英管２の上部よ）ｌｉ下せしめ、
石英管の所定の位置に設けた反射板３を有する加熱用沃
素電球４から成る１熱装置によシ、落下するＬｉ、Ｎ粉
末を熱分解し、直ちに冷却して石英管下部に設けえ１１
１１分に金属リチウム粉末５を堆積せしめるものである
。このＩＩＫ、不活性ガス６を石英管下部に設けた不活
性ガス導入口から上部に設けえ導出口へ、Ｌｆｉ、Ｎ粉
末に対して向流で流すととにより、落下速度を制御する
ことができる。Examples of the method for manufacturing sand in an inert gas atmosphere include a method using an apparatus as shown in Fig. m1. In Figure 1, lithium nitride (
LlmN) Powder 1 is lowered to the top of the quartz tube 2,
The falling Li and N powders are thermally decomposed by a heating device consisting of a heating iodine bulb 4 having a reflector plate 3 provided at a predetermined position of the quartz tube, and immediately cooled and placed at the bottom of the quartz tube.
The metal lithium powder 5 is deposited in 11 minutes. By flowing this IIK and inert gas 6 from the inert gas inlet provided at the bottom of the quartz tube to the outlet provided at the top in a countercurrent to the Lfi and N powder, the falling speed can be controlled. can.
尚、本発明において使用される不活性ガスとしては、例
えば、ヘリウム、アルゴン勢の希ガスが挙けられる。In addition, examples of the inert gas used in the present invention include rare gases such as helium and argon.
一方、減圧下における熱分解ＫＩＩしては、Ｌｉ１Ｎ粉
末末を板又は鳳に薄（拡けて載置し、それらの−着を防
ぐことが好ましい。このＪＩＩＫ。On the other hand, for thermal decomposition KII under reduced pressure, it is preferable to spread the Li1N powder powder thinly (spread) and place it on a plate or a plate to prevent it from sticking.This JIIK.
板又は息として使用する材料にはタングステンを用いる
ことが、金属リチウム又は窒化リチウムと高１１におい
て殆んど反応することがないことから好ましい。減圧度
は、必ずしも真空状態Ｋまで近づける必費はなく、例え
ば％ １０−”Ｔｏｒｒ程度でも目的は達成される。It is preferable to use tungsten as the material used for the plate or breather because it hardly reacts with metallic lithium or lithium nitride at high temperatures. The degree of pressure reduction does not necessarily have to be close to the vacuum state K; for example, the purpose can be achieved even if the degree of pressure reduction is about 10-'' Torr.
上記した減圧下における製造方法としては、例えば、第
２図に示したような装置を用いて製造する方法が挙げら
れる。第２図において、石英管７内に、測温用熱電対保
護管８及びＪＩ９ＫＬｉｌＮ粉末１を載置したものを入
れ、これを、炉心管１０．ヒーターｌ及び保温用耐火物
栓から成る加熱装置内に挿入する。そして、石英管７に
取９付けられた水冷ジャケラ）１３に水を流して冷却し
ながら、排気口１４より排気ポンプで排気しながら所定
湯度に加熱し、ＬｉＩＮ粉末を熱分解せしめるものであ
る。Examples of the above-mentioned manufacturing method under reduced pressure include a manufacturing method using an apparatus as shown in FIG. 2. In FIG. 2, a temperature-measuring thermocouple protection tube 8 and JI9KLilN powder 1 are placed in a quartz tube 7, and this is inserted into a furnace core tube 10. Insert into a heating device consisting of a heater l and a refractory plug for heat retention. Then, while cooling by flowing water through a water-cooled jacket 13 attached to the quartz tube 7, the hot water is heated to a predetermined temperature while being exhausted by an exhaust pump from the exhaust port 14, and the LiIN powder is thermally decomposed. .
本発明の金属リチウム粉末の製造方法は、必ずし龜上記
した装置のみに限定される本のではない。又、例えば、
第２図に示した装置に不活、１．、
性ガスを導入し、加熱して熱分解せしめてもよい。The method for producing metallic lithium powder of the present invention is not necessarily limited to the above-mentioned apparatus. Also, for example,
Inactivation of the apparatus shown in FIG. 2: 1. , a reactive gas may be introduced and heated to cause thermal decomposition.
実施例１
第１図に示した装置を用いて、アルゴンガス雰囲気中に
おいて、窒化リチウムを熱分解せしめた。Example 1 Using the apparatus shown in FIG. 1, lithium nitride was thermally decomposed in an argon gas atmosphere.
即ち、長さ約２ｍ、直径３０ｍを有する石英管の上部よ
）、平均粒ＩＩｓハの窒化リチウム粉末を落下せしめ、
石英管中部に設けた反射板及び沃素電球によ〕窒化リチ
ウム粉末のみを加熱して熱分解し先後、落下中に自然放
冷せしめて下部に設は九溜部分に堆積させた。この際に
、石英管下部より上部へ、アルゴンガスヲ４００ ｌ＋
４／Ｉｍの流量で流した。尚、熱分解時における窒化リ
チウム粉末温度は、正確にはわからないが、６８０Ｃ前
後であると思われる。That is, lithium nitride powder with an average grain size of IIs was dropped onto the top of a quartz tube having a length of about 2 m and a diameter of 30 m,
Only the lithium nitride powder was heated and thermally decomposed using a reflector plate installed in the middle of the quartz tube and an iodine bulb. After that, it was allowed to cool naturally while falling, and was deposited in the lower part of the tube. At this time, add 400 liters of argon gas from the bottom of the quartz tube to the top.
It was flowed at a flow rate of 4/Im. Although the temperature of the lithium nitride powder during thermal decomposition is not precisely known, it is thought to be around 680C.
石英管下部に堆積している銀白色を呈する粉末をＸ線回
折法により分析したところ、リチウムのみであることが
確認された。When the silver-white powder deposited at the bottom of the quartz tube was analyzed by X-ray diffraction, it was confirmed that it was only lithium.
又、フィッシャーのサブシープナイザ−（モデル１４−
３１２． フィッシャー・サイエンティフィック（株）
製、 １１５Ｖ、 ６６ ｔ イ／ ル、 ０．Ｉ Ａ
ＭＰ、）を用いて、上記銀白色粉末の粒径を測定したと
ころ、５μ輌前後であｐ１殆んど変化していないことが
確認された。In addition, Fisher's sub-seepener (Model 14-
312. Fisher Scientific Co., Ltd.
Manufactured by, 115V, 66t I/L, 0. IA
When the particle size of the silvery white powder was measured using MP, ), it was confirmed that p1 hardly changed at around 5 μm.
実施例２
菖２図に示した装置を用いて、減圧下において、窒化リ
チウムを熱分解せしめた。Example 2 Using the apparatus shown in Figure 2, lithium nitride was thermally decomposed under reduced pressure.
即ち、平均粒径０．３■を有する窒化リチウム粉末を、
タングステン板上に疎らに敷きつめ、このタングステン
板を石英管内に入れた。次いで、この石英管を加熱炉内
に挿入し、油回転ポンプを用いて４ Ｘ １ｏ−３程度
に減圧しながら窒化リチウムを６７０Ｃにおいて２０分
間加熱した後、石英管を加熱炉から取９出し冷却した。That is, lithium nitride powder having an average particle size of 0.3
They were spread loosely on a tungsten plate, and the tungsten plate was placed inside a quartz tube. Next, this quartz tube was inserted into a heating furnace, and the lithium nitride was heated at 670C for 20 minutes while reducing the pressure to about 4 x 1o-3 using an oil rotary pump.The quartz tube was then taken out of the heating furnace and cooled. did.
タングステン板上の粉末を、実施例１と同様にしてＸ線
回折法により分析したところ、すべてリチウムに変化し
ていることがｍｇされた。When the powder on the tungsten plate was analyzed by X-ray diffraction in the same manner as in Example 1, it was found that all of the powder had been converted to lithium (mg).
ｒ発明の効果〕
本発明の製造方法によれば、原料として使用する窒化リ
チウム粉末の粒径を選択するととにより、任意の粒径を
有する金属リチウム粉末な得ることが可能であ勤、又、
従来得ることのできなかっ九粒径を有するものを得るこ
とが可能である。更に、製造装置が簡便なものであるた
めに、少量の金属リチ９ム粉末を、随時、容易に得るこ
とができるという利点を有している。Effects of the Invention] According to the production method of the present invention, it is possible to obtain metallic lithium powder having an arbitrary particle size by selecting the particle size of the lithium nitride powder used as a raw material;
It is possible to obtain particles having a particle size of 9, which was previously impossible to obtain. Furthermore, since the manufacturing equipment is simple, it has the advantage that a small amount of metallic lithium powder can be easily obtained at any time.
第１図は不活性ガス雰囲気中にお叶る本発明方法の一概
念因、第２図は同じく減圧下における本発明方法の一概
念図である。
１・−窒化リチウム粉末、２．７・・・石英管、３・・
反射板、４−加熱用沃素電球、
５・・・金属リチウム粉末、６・・・不活性ガス、き・
・・測温用熱電対保護管、９・・・皿、１０・・・炉心
管、１１・・・ヒータ、 １２・・・保温用耐火物、
１３・・・水冷ジャケット、１４・・・排気口。
ψ
Ｆ
２８−FIG. 1 is a conceptual diagram of the method of the present invention which is carried out in an inert gas atmosphere, and FIG. 2 is a conceptual diagram of the method of the present invention which is also carried out under reduced pressure. 1.-Lithium nitride powder, 2.7...Quartz tube, 3.
Reflector, 4-Iodine bulb for heating, 5...Metal lithium powder, 6...Inert gas,
...thermocouple protection tube for temperature measurement, 9...dish, 10...furnace core tube, 11...heater, 12...refractory for heat retention,
13...Water cooling jacket, 14...Exhaust port. ψ F 28−
Claims (2)
は減圧下において、加熱し、融着を防止しつつ熱分解せ
しめることを特徴とする金属リチウムの製造方法。(1) A method for producing metallic lithium, which comprises heating lithium nitride powder in an inert gas atmosphere or under reduced pressure to thermally decompose it while preventing fusion.
特許請求の範囲第１項記載の金属リチウム粉末の製造方
法。(2) The method for producing metallic lithium powder according to claim 1, wherein the thermal decomposition temperature is in the range of 560 to 700C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57081508A JPS58199806A (en) | 1982-05-17 | 1982-05-17 | Production of metallic lithium powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57081508A JPS58199806A (en) | 1982-05-17 | 1982-05-17 | Production of metallic lithium powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58199806A true JPS58199806A (en) | 1983-11-21 |
Family
ID=13748293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57081508A Pending JPS58199806A (en) | 1982-05-17 | 1982-05-17 | Production of metallic lithium powder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58199806A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2338622A3 (en) * | 2006-10-13 | 2011-11-30 | Fmc Corporation | Stabilized lithium metal powder for li-ion application, composition and process. |
| US8231810B2 (en) | 2004-04-15 | 2012-07-31 | Fmc Corporation | Composite materials of nano-dispersed silicon and tin and methods of making the same |
| RU2467829C2 (en) * | 2007-05-16 | 2012-11-27 | Фмк Корпорейшн | STABILISED POWDER OF LITHIUM METAL FOR Li-ION APPLICATIONS, ITS COMPOSITION AND METHOD |
| US8980477B2 (en) | 2000-12-22 | 2015-03-17 | Fmc Corporation | Lithium metal dispersion in secondary battery anodes |
-
1982
- 1982-05-17 JP JP57081508A patent/JPS58199806A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8980477B2 (en) | 2000-12-22 | 2015-03-17 | Fmc Corporation | Lithium metal dispersion in secondary battery anodes |
| US8231810B2 (en) | 2004-04-15 | 2012-07-31 | Fmc Corporation | Composite materials of nano-dispersed silicon and tin and methods of making the same |
| US8753779B2 (en) | 2004-04-15 | 2014-06-17 | Fmc Corporation | Composite materials of nano-dispersed silicon and tin and methods of making the same |
| US10003070B2 (en) | 2004-04-15 | 2018-06-19 | Fmc Corporation | Composite materials of nano-dispersed silicon and tin and methods of making the same |
| EP2338622A3 (en) * | 2006-10-13 | 2011-11-30 | Fmc Corporation | Stabilized lithium metal powder for li-ion application, composition and process. |
| US10374228B2 (en) | 2006-10-13 | 2019-08-06 | Fmc Lithium Usa Corp. | Stabilized lithium metal powder for li-ion application composition |
| RU2467829C2 (en) * | 2007-05-16 | 2012-11-27 | Фмк Корпорейшн | STABILISED POWDER OF LITHIUM METAL FOR Li-ION APPLICATIONS, ITS COMPOSITION AND METHOD |
| US8377236B2 (en) | 2007-05-16 | 2013-02-19 | Fmc Corporation | Stabilized lithium metal powder for Li-ion application, composition and process |
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