JPH0577609B2 - - Google Patents
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- Publication number
- JPH0577609B2 JPH0577609B2 JP30622187A JP30622187A JPH0577609B2 JP H0577609 B2 JPH0577609 B2 JP H0577609B2 JP 30622187 A JP30622187 A JP 30622187A JP 30622187 A JP30622187 A JP 30622187A JP H0577609 B2 JPH0577609 B2 JP H0577609B2
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- solution
- lithium
- reaction
- lithium iodide
- iodine
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D15/00—Lithium compounds
- C01D15/04—Halides
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Conductive Materials (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明はヨウ化リチウム溶液の製造方法に関
し、詳しくは、ヨウ素を溶液状態にて反応系に存
在させて、１段の反応にてヨウ化リチウム水溶液
を製造する方法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for producing a lithium iodide solution. Specifically, the present invention relates to a method for producing a lithium iodide solution. Relating to a method of manufacturing.
従来の技術
ヨウ化リチウムは、水溶液として吸収式冷凍機
における吸収液として用いられるほか、炭化水素
の接触脱水素等にも用いられる。BACKGROUND OF THE INVENTION Lithium iodide is used in the form of an aqueous solution as an absorption liquid in absorption refrigerators, and is also used in catalytic dehydrogenation of hydrocarbons.
従来、ヨウ化リチウムは、先ず、反応式(1)に示
すように、固体状のヨウ素の水性懸濁液に硫化水
素を通じてヨウ化水素酸とイオウとを生成させ、
イオウを濾別してヨウ化水素酸水溶液を得、次い
で、反応式(2)に示すように、このヨウ化水素酸水
溶液を水酸化リチウム又は炭酸リチウムに反応さ
せることによつて製造されている。 Conventionally, lithium iodide is produced by first passing hydrogen sulfide through an aqueous suspension of solid iodine to generate hydroiodic acid and sulfur, as shown in reaction formula (1).
It is produced by filtering off sulfur to obtain an aqueous solution of hydroiodic acid, and then reacting this aqueous solution with lithium hydroxide or lithium carbonate as shown in reaction formula (2).
I2＋H2Ｓ→2HI＋Ｓ (1)
2HI＋Li2CO3→2LiI＋H2Ｏ＋CO2 (2)
しかし、かかる方法においては、反応式(1)にお
いて酸性条件下で生成するイオウが塊状となり、
未反応ヨウ素を吸蔵して、反応を阻害するうえ
に、２段の工程を要するために、製造費用及び設
備費用が高価とならざるを得ない。I 2 + H 2 S→2HI+S (1) 2HI+Li 2 CO 3 →2LiI+H 2 O+CO 2 (2) However, in this method, the sulfur produced under acidic conditions in reaction formula (1) becomes lumpy,
Since unreacted iodine is occluded and the reaction is inhibited, and a two-stage process is required, manufacturing costs and equipment costs are inevitably high.
そこで、例えば、米国特許第3402995明細書に
は、ヨウ素と水酸化リチウムとのほぼ等当量の混
合物からなるスラリーを調製し、これに激しい攪
拌下に硫化水素ガスを通じることによつて、反応
式(3)に示すように、１段の反応にてヨウ化リチウ
ムを含む溶液を製造する方法が提案されている。 For example, U.S. Patent No. 3,402,995 discloses that by preparing a slurry consisting of a mixture of approximately equal amounts of iodine and lithium hydroxide, and passing hydrogen sulfide gas through the slurry with vigorous stirring, the reaction formula As shown in (3), a method has been proposed for producing a solution containing lithium iodide in a one-stage reaction.
I2＋2LiOH＋H2Ｓ→2LiI＋H2Ｏ＋Ｓ＋CO2 (3)
しかし、この方法においても、ヨウ素は前記ス
ラリー中において殆どが固体状であるために、反
応時に副生するイオウが未反応のヨウ素を吸蔵
し、反応を阻害するので、高収率にてヨウ化リチ
ウムを得ることができない。I 2 +2LiOH+H 2 S→2LiI+H 2 O+S+CO 2 (3) However, even in this method, since most of the iodine is in solid form in the slurry, the sulfur produced as a by-product during the reaction occludes unreacted iodine. Since it inhibits the reaction, lithium iodide cannot be obtained in high yield.
発明が解決しようとする問題点
本発明者らは、従来のヨウ化リチウムの製造に
おける上記した問題を解決するために鋭意研究し
た結果、予期しないことに、ヨウ素がヨウ化リチ
ウム溶液に十分な量にて溶解し得ることを見出
し、ヨウ素をヨウ化リチウム溶液に溶解させ、こ
れを反応に用いることによつて、ヨウ素を円滑に
反応させ、かくして、高収率にて高濃度のヨウ化
リチウム溶液を容易に製造することができること
を見出して本発明に至つたものである。Problems to be Solved by the Invention As a result of intensive research to solve the above-mentioned problems in the conventional production of lithium iodide, the present inventors unexpectedly found that iodine was present in a sufficient amount in a lithium iodide solution. By dissolving iodine in a lithium iodide solution and using it in the reaction, iodine can be smoothly reacted, thus producing a highly concentrated lithium iodide solution in high yield. The present invention was achieved by discovering that it can be easily produced.
問題点を解決するための手段
本発明によるヨウ化リチウム溶液の製造方法
は、炭酸リチウム又は水酸化リチウムのスラリー
若しくは水溶液に激しい攪拌下にヨウ素を溶解含
有するヨウ化リチウム水溶液と硫化水素とを連続
的に加えつつ、反応を行なうことを特徴とする。Means for Solving the Problems The method for producing a lithium iodide solution according to the present invention is to continuously mix a lithium iodide aqueous solution containing iodine dissolved in a slurry or aqueous solution of lithium carbonate or lithium hydroxide with hydrogen sulfide under vigorous stirring. It is characterized by carrying out a reaction while adding
本発明の方法においては、ヨウ素をヨウ化リチ
ウム水溶液に溶解させ、この溶液を炭酸リチウム
又は水酸化リチウムの水性スラリー若しくは水溶
液に連続して加えながら、激しい攪拌下に硫化水
素と反応させる。 In the method of the present invention, iodine is dissolved in an aqueous solution of lithium iodide and reacted with hydrogen sulfide under vigorous stirring while this solution is continuously added to an aqueous slurry or solution of lithium carbonate or lithium hydroxide.
ここに、ヨウ素のヨウ化リチウム溶液を調製す
るに当たつて、用いるヨウ化リチウム水溶液は、
その濃度が30〜60重量％であることが好ましい。
ヨウ化リチウム水溶液の濃度が余りに薄いとき
も、或いは反対に余りに濃いときも、ヨウ素を十
分に溶解させることが困難となるからである。ま
た、上記範囲の濃度のヨウ化リチウム水溶液を用
いることによつて、30〜55重量％程度の高濃度の
ヨウ化リチウム水溶液を直ちに得ることができ
る。 Here, in preparing the lithium iodide solution of iodine, the lithium iodide aqueous solution used is:
Preferably, the concentration is between 30 and 60% by weight.
This is because it becomes difficult to sufficiently dissolve iodine when the concentration of the lithium iodide aqueous solution is too low or, conversely, when it is too concentrated. Further, by using a lithium iodide aqueous solution having a concentration within the above range, a lithium iodide aqueous solution having a high concentration of about 30 to 55% by weight can be immediately obtained.
かかるヨウ化リチウム水溶液を用いることによ
つて、その濃度が30重量％であるときは、その
100重量部に対して、ヨウ素を約70重量部溶解さ
せることができ、その濃度が60重量％であるとき
は、約120重量部溶解させることができる。 By using such an aqueous lithium iodide solution, when the concentration is 30% by weight, the
About 70 parts by weight of iodine can be dissolved in 100 parts by weight, and when the concentration is 60% by weight, about 120 parts by weight can be dissolved.
本発明の方法においては、炭酸リチウム又は水
酸化リチウムのスラリー若しくは水溶液を激しく
攪拌しながら、これに、上記したようなヨウ素を
溶解させたヨウ化リチウム水溶液を連続的に加え
つつ、硫化水素を加えることによつて、例えば、
炭酸リチウムを用いる場合は、前記(3)式の反応式
に従つて反応させて、ヨウ化リチウムを生成させ
る。従つて、前記ヨウ化リチウム水溶液における
ヨウ素量は、用いる炭酸リチウム又は水酸化リチ
ウムとほぼ等モル量であることが好ましい。 In the method of the present invention, while vigorously stirring a slurry or aqueous solution of lithium carbonate or lithium hydroxide, hydrogen sulfide is added while continuously adding an aqueous solution of lithium iodide in which iodine as described above is dissolved. Possibly, for example,
When lithium carbonate is used, it is reacted according to the reaction formula (3) above to produce lithium iodide. Therefore, the amount of iodine in the aqueous lithium iodide solution is preferably approximately equimolar to the amount of lithium carbonate or lithium hydroxide used.
硫化水素は、好ましくは、ガスとして炭酸リチ
ウム又は水酸化リチウムのスラリー若しくは水溶
液中に連続的に吹き込むのが好ましいが、必要に
応じて、水溶液を加えることもできる。反応にお
いて、用いる硫化水素の量は、理論量乃至理論量
のやや過剰量であることが好ましい。即ち、硫化
水素の量は、ヨウ素量に対して、ほぼ等モル量か
ら３〜15％程度過剰とするのが好ましい。 Hydrogen sulfide is preferably continuously blown into the slurry or aqueous solution of lithium carbonate or lithium hydroxide as a gas, but an aqueous solution can be added if necessary. In the reaction, the amount of hydrogen sulfide used is preferably a stoichiometric amount or a slightly excess amount of the stoichiometric amount. That is, the amount of hydrogen sulfide is preferably approximately equimolar to approximately 3 to 15% excess relative to the amount of iodine.
更に、本発明の方法においては、炭酸リチウム
又は水酸化リチウムのスラリー若しくは水溶液中
にヨウ素を溶解含有するヨウ化リチウムの溶液と
硫化水素ガスを通ずるに際して、激しい攪拌を行
なうことが重要である。これによつて、反応時に
副生するイオウが粉末状の沈殿となるので、炭酸
リチウムや水酸化リチウムのスラリーを用いると
きも、炭酸リチウムや水酸化リチウムがイオウに
吸蔵されないので、反応を円滑に進行させること
ができ、高収率にて目的するヨウ化リチウムを得
ることができる。 Furthermore, in the method of the present invention, it is important to vigorously stir the lithium carbonate or lithium hydroxide slurry or the lithium iodide solution containing iodine dissolved in the aqueous solution when passing the hydrogen sulfide gas through the solution. As a result, the sulfur produced as a by-product during the reaction becomes a powdery precipitate, so even when using a slurry of lithium carbonate or lithium hydroxide, the lithium carbonate or lithium hydroxide will not be occluded by the sulfur, making the reaction smoother. The desired lithium iodide can be obtained in high yield.
反応温度は、余りに低いときは、反応速度が遅
く、他方、余りに高いときは、望ましくない副反
応が起こるので、通常、０〜70℃、好ましくは20
〜50℃の範囲である。 If the reaction temperature is too low, the reaction rate will be slow, while if it is too high, undesirable side reactions will occur, so it is usually 0 to 70°C, preferably 20°C.
~50℃ range.
発明の効果
以上のように、本発明の方法によれば、ヨウ素
をヨウ化リチウム水溶液に溶解させ、この溶液と
硫化水素とを炭酸リチウム又は水酸化リチウムの
スラリー又は水溶液に連続して加えながら、激し
い攪拌下に反応させるので、反応におけるヨウ素
の取扱いが容易であり、しかも、ヨウ素が溶液状
態で反応し、他方、副生イオウが粉末状に沈殿し
て、反応を阻害しないので、反応を円滑に進行さ
せることができ、かくして、高収率にてヨウ化リ
チウム溶液を得ることができる。Effects of the Invention As described above, according to the method of the present invention, iodine is dissolved in an aqueous lithium iodide solution, and while continuously adding this solution and hydrogen sulfide to a slurry or aqueous solution of lithium carbonate or lithium hydroxide, Since the reaction is carried out under vigorous stirring, it is easy to handle the iodine in the reaction.Moreover, the iodine reacts in a solution state, and on the other hand, the by-product sulfur does not precipitate in powder form and inhibit the reaction, so the reaction is smooth. Thus, a lithium iodide solution can be obtained in high yield.
実施例
以下に実施例を挙げて本発明を具体的に説明す
るが、本発明はこれら実施例によつて何ら限定さ
れるものではない。EXAMPLES The present invention will be specifically explained below with reference to Examples, but the present invention is not limited to these Examples in any way.
実施例 １
１容量のセパラブル・フラスコに純水500ml
及び炭酸リチウム72.8ｇ（0.99モル）を入れ、攪
拌してスラリーとした。Example 1 500ml of pure water in a 1-volume separable flask
and 72.8 g (0.99 mol) of lithium carbonate were added thereto and stirred to form a slurry.
ヨウ素250ｇ（0.99モル）を33.0重量％ヨウ化
リチウム水溶液350ｇに溶解してなる溶液を調製
し、この溶液を上記炭酸リチウムのスラリーに温
度22℃にて激しい攪拌下に連続的に加えつつ、硫
化水素ガスを120ml／分の割合で３時間20分間通
じた。反応に用いた硫化水素は全部で1.07モルで
あつた。 A solution was prepared by dissolving 250 g (0.99 mol) of iodine in 350 g of a 33.0% by weight lithium iodide aqueous solution, and this solution was continuously added to the above slurry of lithium carbonate at a temperature of 22°C with vigorous stirring while sulfiding. Hydrogen gas was passed at a rate of 120 ml/min for 3 hours and 20 minutes. The total amount of hydrogen sulfide used in the reaction was 1.07 mol.
得られた反応液からイオウを濾別して、濃度
34.1重量％のヨウ化リチウム溶液1071ｇを得た。
収率は94.7％であつた。 Sulfur was filtered from the resulting reaction solution to determine the concentration.
1071 g of 34.1% by weight lithium iodide solution was obtained.
The yield was 94.7%.
比較例 １
実施例１において、ヨウ素を含むヨウ化リチウ
ム溶液を加える代わりに、ヨウ素粉末250ｇを25
回に分けて加え、３時間20分で反応を終了させた
以外は、実施例１と同様にして反応を行なつた。
この結果、濃度33.0重量％のヨウ化リチウム溶液
735ｇを得た。重量％は92.0％であつた。Comparative Example 1 In Example 1, instead of adding lithium iodide solution containing iodine, 250 g of iodine powder was added to
The reaction was carried out in the same manner as in Example 1, except that the mixture was added in batches and the reaction was completed after 3 hours and 20 minutes.
As a result, a lithium iodide solution with a concentration of 33.0% by weight
Obtained 735g. The weight percentage was 92.0%.
実施例 ２
１容量の平底フラスコに純水220ml及び炭酸
リチウム72.8ｇ（0.99モル）を入れ、攪拌してス
ラリーとした。Example 2 220 ml of pure water and 72.8 g (0.99 mol) of lithium carbonate were placed in a 1-capacity flat bottom flask and stirred to form a slurry.
ヨウ素250ｇ（0.99モル）を50.1重量％ヨウ化
リチウム水溶液290ｇに溶解してなる溶液を調製
し、この溶液を上記炭酸リチウムのスラリーに温
度23℃にて激しい攪拌下に連続的に加えつつ、硫
化水素ガス120ml／分の割合で３時間10分間通じ
た。反応に用いた硫化水素は全部で1.02モルであ
つた。 A solution was prepared by dissolving 250 g (0.99 mol) of iodine in 290 g of a 50.1% by weight lithium iodide aqueous solution, and this solution was continuously added to the above slurry of lithium carbonate at a temperature of 23° C. with vigorous stirring, while sulfiding was carried out. Hydrogen gas was passed at a rate of 120 ml/min for 3 hours and 10 minutes. The total amount of hydrogen sulfide used in the reaction was 1.02 mol.
得られた反応液からイオウを濾別して、濃度
53.1重量％のヨウ化リチウム溶液752ｇを得た。
収率は96.3％であつた。 Sulfur was filtered from the resulting reaction solution to determine the concentration.
752 g of 53.1% by weight lithium iodide solution was obtained.
The yield was 96.3%.
比較例 ２
実施例１において、ヨウ素を含むヨウ化リチウ
ム溶液を加える代わりに、ヨウ素粉末250ｇを25
回に分けて加え、３時間10分で反応を終了させた
以外は、実施例２と同様にして反応を行なつた。
この結果、濃度51.1重量％のヨウ化リチウム溶液
444ｇを得た。重量％は86.1％であつた。Comparative Example 2 In Example 1, instead of adding lithium iodide solution containing iodine, 250 g of iodine powder was added to
The reaction was carried out in the same manner as in Example 2, except that the mixture was added in batches and the reaction was completed after 3 hours and 10 minutes.
As a result, a lithium iodide solution with a concentration of 51.1% by weight
444g was obtained. The weight percentage was 86.1%.
実施例 ３
１容量の平底フラスコに純水285ml及び水酸
化リチウム−水和物124ｇ（2.96モル）を入れ、
攪拌して水溶液とした。Example 3 285 ml of pure water and 124 g (2.96 mol) of lithium hydroxide hydrate were placed in a 1-volume flat bottom flask,
It was stirred to form an aqueous solution.
ヨウ素375ｇ（1.48モル）を51.5重量％ヨウ化
リチウム水溶液430ｇに溶解してなる溶液を調製
し、この溶液を上記水酸化リチウム水溶液に温度
22℃にて激しい攪拌下に連続的に加えつつ、硫化
水素ガス180ml／分の割合で３時間10分間通じた。
反応に用いた硫化水素は全部で1.53モルであつ
た。 A solution was prepared by dissolving 375 g (1.48 mol) of iodine in 430 g of a 51.5% by weight lithium iodide aqueous solution, and this solution was added to the above lithium hydroxide aqueous solution at a temperature
Hydrogen sulfide gas was passed at a rate of 180 ml/min for 3 hours and 10 minutes while continuously adding hydrogen sulfide gas at 22°C with vigorous stirring.
The total amount of hydrogen sulfide used in the reaction was 1.53 mol.
得られた反応液からイオウを濾別して、濃度
50.1重量％のヨウ化リチウム溶液1187ｇを得た。
収率は94.4％であつた。 Sulfur was filtered from the resulting reaction solution to determine the concentration.
1187 g of 50.1% by weight lithium iodide solution was obtained.
The yield was 94.4%.
実施例 ４
200容量FRP製タンクに純水75及び炭酸リ
チウム11Kg（149モル）を入れ、攪拌してスラリ
ーとした。Example 4 75 kg of pure water and 11 kg (149 mol) of lithium carbonate were placed in a 200-capacity FRP tank and stirred to form a slurry.
ヨウ素37.6Kg（148モル）を35重量％ヨウ化リ
チウム水溶液51.9Kgに溶解してなる溶液を調製
し、この溶液を上記炭酸リチウムのスラリーに温
度26℃にて激しい攪拌下に連続的に加えつつ、硫
化水素ガスを11／分の割合で５時間25分間通じ
た。反応に用いた硫化水素は全部で160モルであ
つた。 A solution was prepared by dissolving 37.6 kg (148 mol) of iodine in 51.9 kg of a 35% by weight lithium iodide aqueous solution, and this solution was continuously added to the above slurry of lithium carbonate at a temperature of 26°C with vigorous stirring. , hydrogen sulfide gas was passed at a rate of 11/min for 5 hours and 25 minutes. A total of 160 moles of hydrogen sulfide was used in the reaction.
得られた反応液からイオウを濾別して、濃度
34.4重量％のヨウ化リチウム溶液163.3Kgを得た。
収率は95.8％であつた。また、濾別したイオウは
9.1Kgであつた。 Sulfur was filtered from the resulting reaction solution to determine the concentration.
163.3 kg of 34.4% by weight lithium iodide solution was obtained.
The yield was 95.8%. In addition, the sulfur separated by filtration is
It weighed 9.1Kg.
実施例 ５
200容量FRP製タンクに純水76及び炭酸リ
チウム18.5Kg（250モル）を入れ、攪拌してスラ
リーとした。Example 5 Pure water 76 and 18.5 kg (250 mol) of lithium carbonate were placed in a 200-capacity FRP tank and stirred to form a slurry.
ヨウ素62.5Kg（246モル）を45重量％ヨウ化リ
チウム水溶液77.1Kgに溶解してなる溶液を調製
し、この溶液を上記炭酸リチウムのスラリーに温
度25℃にて激しい攪拌下に連続的に加えつつ、硫
化水素ガスを18.4／分の割合で５時間40分間通
じた。反応に用いた硫化水素は全部で279モルで
あつた。 A solution was prepared by dissolving 62.5 kg (246 mol) of iodine in 77.1 kg of a 45% by weight lithium iodide aqueous solution, and this solution was continuously added to the above slurry of lithium carbonate at a temperature of 25°C with vigorous stirring. , hydrogen sulfide gas was passed at a rate of 18.4/min for 5 hours and 40 minutes. A total of 279 moles of hydrogen sulfide were used in the reaction.
得られた反応液からイオウを濾別して、濃度
45.2重量％のヨウ化リチウム溶液219.4Kgを得た。
収率は97.9％であつた。また、濾別したイオウは
11.3Kgであつた。 Sulfur was filtered from the resulting reaction solution to determine the concentration.
219.4 kg of 45.2% by weight lithium iodide solution was obtained.
The yield was 97.9%. In addition, the sulfur separated by filtration is
It weighed 11.3Kg.
実施例 ６
200容量FRP製タンクに純水71及び炭酸リ
チウム26.3Kg（356モル）を入れ、攪拌してスラ
リーとした。Example 6 Pure water 71 and 26.3 kg (356 mol) of lithium carbonate were placed in a 200-capacity FRP tank and stirred to form a slurry.
ヨウ素90.0Kg（355モル）を55重量％ヨウ化リ
チウム水溶液94.0Kgに溶解してなる溶液を調製
し、この溶液を上記炭酸リチウムのスラリーに温
度25℃にて激しい攪拌下に連続的に加えつつ、硫
化水素ガスを22.1／分の割合で６時間30分間通
じた。反応に用いた硫化水素は全部で385モルで
あつた。 A solution was prepared by dissolving 90.0 kg (355 mol) of iodine in 94.0 kg of a 55% by weight lithium iodide aqueous solution, and this solution was continuously added to the above slurry of lithium carbonate at a temperature of 25°C with vigorous stirring. , hydrogen sulfide gas was passed at a rate of 22.1/min for 6 hours and 30 minutes. A total of 385 moles of hydrogen sulfide were used in the reaction.
得られた反応液からイオウを濾別して、濃度
55.4重量％のヨウ化リチウム溶液258.8Kgを得た。
収率は96.6％であつた。また、濾別したイオウは
16.7Kgであつた。 Sulfur was filtered from the resulting reaction solution to determine the concentration.
258.8 kg of 55.4% by weight lithium iodide solution was obtained.
The yield was 96.6%. In addition, the sulfur separated by filtration is
It weighed 16.7Kg.
Claims (1)
若しくは水溶液に激しい攪拌下にヨウ素を溶解含
有するヨウ化リチウム水溶液と硫化水素とを連続
的に加えつつ、反応を行なうことを特徴とするヨ
ウ化リチウム溶液の製造方法。1. Production of a lithium iodide solution characterized by carrying out the reaction while continuously adding a lithium iodide aqueous solution containing dissolved iodine and hydrogen sulfide to a slurry or aqueous solution of lithium carbonate or lithium hydroxide under vigorous stirring. Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62306221A JPH01148708A (en) | 1987-12-03 | 1987-12-03 | Production of lithium iodide solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62306221A JPH01148708A (en) | 1987-12-03 | 1987-12-03 | Production of lithium iodide solution |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01148708A JPH01148708A (en) | 1989-06-12 |
| JPH0577609B2 true JPH0577609B2 (en) | 1993-10-27 |
Family
ID=17954451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62306221A Granted JPH01148708A (en) | 1987-12-03 | 1987-12-03 | Production of lithium iodide solution |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01148708A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013103851A (en) * | 2011-11-11 | 2013-05-30 | Nippon Chem Ind Co Ltd | Lithium iodide anhydrate, method for producing lithium iodide anhydrate, solid electrolyte and lithium ion battery |
| JP6006994B2 (en) * | 2012-06-13 | 2016-10-12 | 株式会社合同資源 | Method for producing lithium iodide anhydride |
| CN110013714B (en) | 2014-01-07 | 2021-08-20 | 唐纳森公司 | Filter Media Packs, Filter Elements, and Filter Media |
-
1987
- 1987-12-03 JP JP62306221A patent/JPH01148708A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01148708A (en) | 1989-06-12 |
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