JPS5860619A - Back extraction of indium from organic solvent phase - Google Patents
Back extraction of indium from organic solvent phaseInfo
- Publication number
- JPS5860619A JPS5860619A JP56156529A JP15652981A JPS5860619A JP S5860619 A JPS5860619 A JP S5860619A JP 56156529 A JP56156529 A JP 56156529A JP 15652981 A JP15652981 A JP 15652981A JP S5860619 A JPS5860619 A JP S5860619A
- Authority
- JP
- Japan
- Prior art keywords
- indium
- organic solvent
- chloride
- solvent phase
- aqueous solution
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G15/00—Compounds of gallium, indium or thallium
- C01G15/003—Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/26—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
- C22B3/38—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds containing phosphorus
- C22B3/384—Pentavalent phosphorus oxyacids, esters thereof
- C22B3/3844—Phosphonic acid, e.g. H2P(O)(OH)2
-
- 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
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Geology (AREA)
- Geochemistry & Mineralogy (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Environmental & Geological Engineering (AREA)
- Inorganic Chemistry (AREA)
- Extraction Or Liquid Replacement (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はインジウムを含有する有機溶媒相からインジウ
ムを逆抽出して回収する方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for back-extracting and recovering indium from an organic solvent phase containing indium.
近年、溶媒抽出法の製錬への利用の実用化に伴ない１イ
ンジウムの溶媒抽出による回収方法が種々提案されてい
る。In recent years, with the practical use of solvent extraction methods in smelting, various methods for recovering 1-indium by solvent extraction have been proposed.
例えば、インジウムイオンを含む水溶液を、トリアルキ
ルリン酸とモノアルキルリン酸又はジアルキルリン酸と
の混合物を抽出剤として含む有機溶媒と接触させてイン
ジウムを選択的に抽出し、ついで得られるインジウムを
含む有機溶媒相を硫酸酸性水溶液と接触させて該有機溶
媒相中のインジウムを逆抽出する方法（％公昭５５−１
４８７３５号）、インジウムを含有する水溶液からトリ
ブチルリン酸（ＴＢＰ）を抽出剤として含む有機溶媒を
用いてインジウムを抽出し、ついで得られる有機溶媒相
中のインジウムを水を抽出剤として用いて逆抽出する方
法並びにインジウムを含有する水溶液から第３級脂肪酸
をイオン交換液として用いてインジウムを抽出し、つい
で得られる上記溶媒中のインジウムを塩酸を抽出剤とし
て用いて逆抽出する方法〔日本鉱業会誌、ＶｏＬ９３
、Ａ１０７０（１９７７−４）の第３２３頁乃至第３２
５頁〕、インジウムを含む硫酸酸性溶液をリン酸ジ２−
エチルヘキシルエステルを抽出剤として含む有機溶媒を
用いてインジウムを抽出し、ついで得られる有機溶媒相
中のインジウムを塩酸又は硫酸を用いて逆抽出する方法
（特開昭５５−１４８７３６号）及びインジウムを含有
する硫酸酸性溶液を２−エチルへキシルホスホン酸七ノ
２−エチルヘキシルエステルを抽出剤として含む有機溶
媒を用いてインジウムを抽出し、ついで得られる有機溶
媒相中のインジウムを塩酸又は硫酸を用いて逆抽出する
方法等が提案されている。すなわち、上述したごとく、
インジウムを含む水溶液から各種の抽出剤を含む有機溶
媒を用いてインジウムを選択的に抽出し、ついで得られ
る有機溶媒相中のインジウムを塩酸、硫酸又は水を用い
て逆抽出することから成るインジウムの回収法が今まで
知られている。For example, indium is selectively extracted by contacting an aqueous solution containing indium ions with an organic solvent containing a mixture of trialkyl phosphoric acid and monoalkyl phosphoric acid or dialkyl phosphoric acid as an extractant; A method of back-extracting indium in the organic solvent phase by contacting the organic solvent phase with an acidic aqueous solution of sulfuric acid (% Kosho 55-1
No. 48735), indium is extracted from an aqueous solution containing indium using an organic solvent containing tributyl phosphate (TBP) as an extractant, and then indium in the obtained organic solvent phase is back-extracted using water as an extractant. and a method of extracting indium from an indium-containing aqueous solution using a tertiary fatty acid as an ion exchange liquid, and then back-extracting the indium in the resulting solvent using hydrochloric acid as an extractant [Journal of the Japan Mining Association, VoL93
, A1070 (1977-4), pages 323 to 32
page 5], a sulfuric acid solution containing indium was
A method of extracting indium using an organic solvent containing ethylhexyl ester as an extractant, and then back-extracting the indium in the resulting organic solvent phase using hydrochloric acid or sulfuric acid (Japanese Patent Application Laid-open No. 148736/1983) and containing indium. Indium is extracted from the sulfuric acid acidic solution using an organic solvent containing 2-ethylhexylphosphonic acid 7-2-ethylhexyl ester as an extractant, and then the indium in the obtained organic solvent phase is inverted using hydrochloric acid or sulfuric acid. Methods of extraction have been proposed. That is, as mentioned above,
Indium extraction consists of selectively extracting indium from an indium-containing aqueous solution using an organic solvent containing various extractants, and then back-extracting the indium in the resulting organic solvent phase using hydrochloric acid, sulfuric acid, or water. Recovery methods are hitherto known.
本発明は上述したごとき各種の抽出剤を含む有機溶媒を
用いてインジウムを抽出して得られる、インジウムを含
有する有機溶媒相からインジウムを逆抽出するに際して
、塩酸と、インジウムより卑な金属の塩化物とを含む水
溶液を上記逆抽出のための抽出剤として用いることを特
徴とする。The present invention uses hydrochloric acid and chlorination of a metal less base than indium when back-extracting indium from an indium-containing organic solvent phase obtained by extracting indium using an organic solvent containing various extractants as described above. The present invention is characterized in that an aqueous solution containing a substance is used as an extractant for the above-mentioned back extraction.
上述したごとく、インジウムを含む有機溶媒相からイン
ジウムを逆抽出する場合、抽出剤として塩酸を用いるこ
とは知られているが、塩酸と上記金属の塩化物とを含む
水溶液を抽出剤として用いると、逆抽出に用いる塩酸の
量が節約できること１インジウム濃度の高い逆抽出抜液
が得られること）及び上記金属の塩化物をリサイクルし
て再使用できる利点がみられるようになる。As mentioned above, when back-extracting indium from an organic solvent phase containing indium, it is known that hydrochloric acid is used as an extractant, but if an aqueous solution containing hydrochloric acid and a chloride of the above metal is used as an extractant, The following advantages can be seen: the amount of hydrochloric acid used for back extraction can be saved, a back extraction liquid with a high indium concentration can be obtained), and the chlorides of the metals mentioned above can be recycled and reused.
以下本発明を祥しく！ｉ！明する。Congratulations on this invention! i! I will clarify.
本発明においてインジウムを逆抽出する対象であるイン
ジウムを含有する有機溶媒相は、インジウムを含有する
水溶液を電線水浴液からインジウムを選択的に抽出し得
る抽出剤を含む有機溶媒と接触させることにより得られ
る。ここで使用される抽出剤は従来知られている各種の
有機リン酸、有機ホスホン酸、有機ホスフィン酸、トリ
アルキル酢酸を包含するものであり、リン酸ジ２−エチ
ルヘキシルエステル（Ｄ２ＥＨＰＡ）％ ２〜エチル
へキシルホスホン酸七ノ２−エチルヘキシルエステル−
°トリブチルリン酸（ＴＢＰ）、３級脂肪酸、例えばｖ
ｅｒａｅｔｉｃ ａｃｌ （シェル化学社の商品名、
Ｃ！６Ｈ，１０００Ｈ）等を例示し得る。これらの抽
出剤は単独又は２棟以上の混合物として適用でき、一般
にはケロシンのような鉱油、アルコール類等で希釈して
用いられる。In the present invention, the indium-containing organic solvent phase from which indium is back-extracted can be obtained by bringing an indium-containing aqueous solution into contact with an organic solvent containing an extractant capable of selectively extracting indium from the wire bath liquid. It will be done. The extractants used here include various conventionally known organic phosphoric acids, organic phosphonic acids, organic phosphinic acids, and trialkyl acetic acids, and include di-2-ethylhexyl phosphoric acid ester (D2EHPA)% 2~ Ethylhexylphosphonic acid 7-2-ethylhexyl ester
°tributyl phosphate (TBP), tertiary fatty acids, e.g.
eraetic acl (trade name of Shell Chemical Co., Ltd.)
C! 6H, 1000H), etc. These extractants can be applied singly or as a mixture of two or more, and are generally used after being diluted with mineral oil such as kerosene, alcohol, or the like.
本発明では、インジウム原料を硫酸のごとき鉱酸で浸出
して得られるインジウムの酸性水溶液を上述したごとき
抽出剤を含む有機溶媒と常法により接触させて得られる
１イ／ジウムを含有する有機溶媒を、塩酸と１インジウ
ムより卑な金属の塩化物とを含む水溶液と接触させるこ
とにより上記有機溶媒相中のインジウムを逆抽出する。In the present invention, an organic solvent containing 1I/dium is obtained by contacting an acidic aqueous solution of indium obtained by leaching an indium raw material with a mineral acid such as sulfuric acid with an organic solvent containing an extractant such as the one described above by a conventional method. is brought into contact with an aqueous solution containing hydrochloric acid and a chloride of a metal less base than 1 indium to back-extract the indium in the organic solvent phase.
ここで有機溶媒相中のインジウムの逆抽出に抽出剤とし
て用いるインジウムよシ卑な金属の塩化物としては塩化
ナトリウム、塩化カリウムのごときアルカリ金属の塩化
物、塩化マグネシウム、塩化カルシウムのごときアルカ
リ土金属の塩化物を例示し得る。Here, chlorides of metals less base than indium used as extractants for the back extraction of indium in the organic solvent phase include chlorides of alkali metals such as sodium chloride and potassium chloride, and alkaline earth metals such as magnesium chloride and calcium chloride. An example is the chloride of
本発明で塩化物としてインジウムより卑な金属の塩化物
を用いるのは逆抽出後練中のインジウム（工ｎＣ！１４
の形態となる）を次工程で亜鉛やアルミニウムで置換析
出して回収する操作を支障なく行なうためである。In the present invention, the chloride of a metal less base than indium is used as the chloride of indium during mixing after back extraction.
This is to ensure that the next step is to replace and precipitate the aluminum with zinc or aluminum and recover it without any problems.
本発明による逆抽出で抽出剤として用いる上記水溶液中
の塩酸濃度は０．５乃至５Ｎ程度が好ましく、また上記
金属塩化物の濃度は高いほど良く、飽和溶解度近くまで
高め得る。又、逆抽出に際しての有機溶媒相（０）と抽
出剤水溶液相（Ａ）の接触比（０／Ａ ）は特に制限さ
れないが１／１乃至１０／１の範囲で行なうとよく、接
触温度は加温する程度で効果があるが室温にても充分で
ある。The concentration of hydrochloric acid in the aqueous solution used as an extractant in the back extraction according to the present invention is preferably about 0.5 to 5N, and the higher the concentration of the metal chloride, the better, and it can be increased to near saturation solubility. Further, the contact ratio (0/A) between the organic solvent phase (0) and the extractant aqueous solution phase (A) during back extraction is not particularly limited, but it is preferably carried out in the range of 1/1 to 10/1, and the contact temperature is Although heating is effective, room temperature is also sufficient.
接触時間は０６５分乃至１０分が適当である。A suitable contact time is 0.65 to 10 minutes.
本発明により有機溶媒相中のインジウムを逆抽出すると
インジウムは逆抽出抜液中に工ｎ０１Ｂの形態で回収し
得、該抽出抜液中の金属塩化物はインジウムを回収後、
逆抽出工程ヘリサイクルして逆抽出のための抽出剤とし
て再使用できる。When indium in the organic solvent phase is back-extracted according to the present invention, indium can be recovered in the form of N01B during the back-extraction drain, and metal chlorides in the extraction drain can be recovered after recovering indium.
It can be recycled to the back extraction process and reused as an extractant for back extraction.
本発明による逆抽出において抽出剤に金属塩化物を含有
させた場合の逆抽出抜液中に抽出されるインジウム濃度
に与える影響を試験した結果を添付図面に示す。The attached drawings show the results of testing the effect of containing metal chlorides in the extractant on the concentration of indium extracted in the back extraction solution according to the present invention.
試験は下記の手順で行なった。The test was conducted according to the following procedure.
２−エチルへキシルホスホン酸七ノ２−エチルヘキシル
エステルの４０容ｔ％濃度のケロシ７ｆｔ！液を用いて
インジウム含有硫酸水溶液からインジウムを抽出して、
インジウムを１９．４ｆ／を含む有機溶媒相を得、この
有機溶媒相（０）について、塩化ナトリウムを１ｏｏ
ｙ／ｌの濃度で含む各種濃度の塩酸水溶液を、他方塩化
ナトリウムを含まない各樵濃度の塩酸水溶液をそれぞれ
抽出剤（Ａ）として用い○／Ａ＝１００ｍ／／２０−の
割合で接触させて２０℃で振盪下に１０分間逆抽出を行
い、得られるそれぞれの逆抽出抜液中のインジウム濃度
の変化を測定した。7ft of kerosene with 40 volume t% concentration of 2-ethylhexylphosphonic acid heptano-2-ethylhexyl ester! Extract indium from an indium-containing sulfuric acid aqueous solution using a
An organic solvent phase containing 19.4 f/indium was obtained, and about this organic solvent phase (0), 1 oo of sodium chloride was obtained.
Hydrochloric acid aqueous solutions of various concentrations containing y/l and hydrochloric acid aqueous solutions of various concentrations containing no sodium chloride were used as extractants (A) and brought into contact at a ratio of ○/A = 100 m//20-. Back extraction was performed at 20° C. for 10 minutes while shaking, and changes in indium concentration in each of the resulting back extraction liquids were measured.
々お、逆抽出液中の塩ｔｓｍ度は図においては逆抽出抜
液中の塩酸濃度（図の横軸）の測定値で表わした。In the figure, the degree of salt TSM in the back extraction solution is expressed by the measured value of the hydrochloric acid concentration (horizontal axis in the figure) in the back extraction solution.
添付図面にみられるごとく、逆抽出剤として塩化ナトリ
ウム（Ｍａｉｌ ）を含む塩酸水溶液を用いる場合、塩
酸単独の水溶液を用いた場合に比しインジウムの逆抽出
効率が著しく高くなることがわかる。As seen in the accompanying drawings, when an aqueous hydrochloric acid solution containing sodium chloride (Mail) is used as a back-extracting agent, the efficiency of back-extracting indium is significantly higher than when using an aqueous solution of hydrochloric acid alone.
以上述べたごとく、本発明によると、インジウムを含有
する有機溶媒相からのインジウムの逆抽出に際いインジ
ウムを高濃度で逆抽出でき、且つ、抽出剤に添加して用
い九金属塩化物は逆抽出工程にリサイクルして再利用で
きるので、塩酸使用量も節約できる利点がある。As described above, according to the present invention, when back-extracting indium from an organic solvent phase containing indium, indium can be back-extracted at a high concentration, and nine metal chlorides added to an extractant can be used for back-extracting indium. Since it can be recycled and reused in the extraction process, it has the advantage of reducing the amount of hydrochloric acid used.
以下実施例を例示して本発明をさらに具体的に説明する
。The present invention will be described in more detail below by way of examples.
実施例１
２エチルへキシルホスホン酸モノ２−エチルヘキシルエ
ステル４０−をケロシン６０−で稀釈した有機溶媒１０
０ｍを用いてインジウム含有水溶液からインジウムを選
択抽出して得られたインジウムを１４．８ ｙ／を含有
する有機溶媒相を下記子Ｉｌｌによシ逆抽出した。Example 1 Organic solvent 10 in which 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester 40- was diluted with kerosene 60-
Indium was selectively extracted from an indium-containing aqueous solution using 0m, and the organic solvent phase containing 14.8 y/y of indium was back-extracted using the following sample Ill.
逆抽出に用い九抽出剤：
（イ）塩＠ｌ＜７２９／Ｌ及び塩化カリウム（ＫＯ’ｌ
）を１２６ｙ／を含有する水浴液
（ロ）塩＃を７２ ｙ／を及び塩び塩化カルシウム（ｃ
ａｃｌ、 ）を９５ ？ ／ Ｌ含有する水溶液（ハ）
塩酸を７２ｙ／を及び塩化マグネシウム（ＭｇＯ］ｚ）
を８２ｆ／を含有する水溶液上記有機溶媒相（○）と上
記（イ）、（ロ）並びに（ハ）の各抽出剤相（Ａ）をＯ
／Ａ比１ｏｏｔｎｔ／２ｏ−の割合で室温にて振盪しな
がら１０分間接触させ九〇結果は下記表１のとおりであ
る。Nine extractants used for back extraction: (a) Salt @ l<729/L and potassium chloride (KO'l
) containing 126y/ of salt #72y/ and calcium chloride (c
acl, )95? /L containing aqueous solution (c)
Hydrochloric acid 72y/and magnesium chloride (MgO]z)
The above organic solvent phase (○) and each extractant phase (A) of above (a), (b) and (c) were mixed with O.
/A ratio of 1ootnt/2o- for 10 minutes at room temperature with shaking.The results are shown in Table 1 below.
なお、比較として塩酸７２ ｆ／ｌのみを含む水溶液を
抽出剤として上記有機溶媒相と接触させた結果を併せて
下記表１に示す。For comparison, the results of contacting the above organic solvent phase with an aqueous solution containing only 72 f/l of hydrochloric acid as an extractant are also shown in Table 1 below.
表 １
有機溶媒相中のインジウム濃度／逆抽出相中のインジウ
ム濃度上表にみられるごとく、ＫＯＩ％ＱａＯ１１並び
にＭｇＣｌ４をそれぞれ含む塩酸水溶液を抽出剤として
用いた場合のインジウムの逆抽出濃度が従来の塩酸水溶
液のみを用いた場合に比し高くなることがわかる。Table 1 Indium concentration in the organic solvent phase/Indium concentration in the back extraction phase As seen in the above table, the back extraction concentration of indium when using hydrochloric acid aqueous solutions containing KOI%QaO11 and MgCl4 as extractants is lower than that of the conventional one. It can be seen that it is higher than when only aqueous hydrochloric acid solution is used.
実施例２
下記の各抽出剤を用いてインジウム含有水溶液からイン
ジウムを選択抽出して得られる、インジウムをｘｓ、ｏ
ｒ／を含有する各有機溶媒相を、塩酸７２９／を及び塩
化ナトリウＡ （Ｍａｉｌ ） １００り／ｌを含む水
溶液とｏ ／ Ａ比１００ｍｇ／２０−の割合で室温下
に振盪しながら１０分間接触させて上記各有機溶媒相か
らインジウムを逆抽出した◇有機溶媒相の組成：
（イ） ２エチルへキシルホスホン酸モノ２エチルヘキ
シルエステル４〇−及びトリブチルリン酸１０１Ｒｔを
ケロシン５０Ｉ７！で稀釈したもの（全量１００ｄ）
（ロ） ２エチルへキシルホスホン酸モノ２エチルヘキ
シルエステル４０ｍをケロシン５０ｍ及びトリデシルア
ルコール１０−で稀釈したもの（全量１００＋ｄ）
（ハ） リン酸ジ２−エチルヘキシルエステル（Ｄ２Ｋ
ＨＰＡ）４０ｍをケロシ７６０−で稀釈したもの（全量
ｘｏｏ−）
に） ＤＩＫＨＰＡ４０ｓｔＪ及びトリブチルリン酸１
０−をケロシン５ｏ−で稀釈したもの（全量１００＊）
（ホ） Ｄ２ ＢＨＰＡ４０−をケ０−、’ ７５０１
ｎｔ及びトリデシルアルコール１ｏ−で稀釈したもの（
全量１００ｍ）
上記逆抽出の結果は下記表２のとおシである。Example 2 Indium obtained by selectively extracting indium from an indium-containing aqueous solution using each of the following extractants was xs, o
Each organic solvent phase containing r/ was contacted with an aqueous solution containing 729/l of hydrochloric acid and 100/l of sodium chloride A (Mail) at an o/A ratio of 100 mg/20 for 10 minutes at room temperature with shaking. Indium was back-extracted from each of the above organic solvent phases. ◇ Composition of organic solvent phase: (a) 2-ethylhexylphosphonic acid mono-2ethylhexyl ester 40- and tributyl phosphate 101Rt were mixed with kerosene 50I7! (total amount: 100 d) (b) 40 m of 2-ethylhexylphosphonic acid mono-2 ethylhexyl ester diluted with kerosene (50 m) and tridecyl alcohol 10- (total amount: 100 + d) (c) Di-2-ethylhexyl phosphoric acid ester ( D2K
HPA) 40m diluted with Keroshi 760- (total amount xoo-)) DIKHPA40stJ and tributyl phosphate 1
0- diluted with kerosene 5o- (total amount 100*) (e) D2 BHPA40- diluted with kerosene 5o-,' 7501
nt and diluted with tridecyl alcohol 1o- (
Total amount: 100 m) The results of the above back extraction are shown in Table 2 below.
なお、比較として塩酸ｒｚｙ／ｌのみを含む水溶液を用
いて逆抽出した結果も併せて表２に示す。For comparison, Table 2 also shows the results of back extraction using an aqueous solution containing only rzy/l hydrochloric acid.
上記表に与られるごとく、有機溶媒相の抽出に用いた抽
出剤の種類にかかわりなく、有機溶媒相中のインジウム
の逆抽出にＮａ１ｌを含む塩酸水溶液を用いると、塩酸
のみの水溶液を用いた場合に比し逆抽出後液中のインジ
ウム濃度が高くなることがわかる。As shown in the table above, regardless of the type of extractant used for extraction of the organic solvent phase, when a hydrochloric acid aqueous solution containing Na1L is used for back extraction of indium in the organic solvent phase, when an aqueous solution containing only hydrochloric acid is used It can be seen that the indium concentration in the liquid after back extraction is higher than that in the sample.
添付図面はインジウムを含む有機溶媒相からインジウム
を逆抽出する際、抽出剤として塩化ナトリウムを含む塩
酸水溶液を用いた場合と、塩酸のみの水溶液を用いた場
合の各樵塩酸濃度における逆抽出後液中のインジウム（
Ｉｎ）濃度の変化を示したものである。The attached drawings show the back-extracted solutions at different concentrations of hydrochloric acid when indium is back-extracted from an organic solvent phase containing indium, using an aqueous solution of hydrochloric acid containing sodium chloride as an extractant, and using an aqueous solution of only hydrochloric acid. Indium inside (
In) shows the change in concentration.
Claims (3)
いてインジウムを逆抽出する方法において、抽出剤とし
て塩酸と、インジウムよシ卑な金属の塩化物とを含む水
溶液を用いることを特徴とする上記有機溶媒相からイン
ジウムを逆抽出する方法。(1) A method for back-extracting indium from an organic solvent phase containing indium using an extractant, characterized in that an aqueous solution containing hydrochloric acid and a chloride of a metal less base than indium is used as the extractant. A method for back-extracting indium from the organic solvent phase.
請求の範囲第（１）項に記載の方法。(2) The method according to claim (1), wherein the metal chloride is an alkali metal chloride.
許請求の範囲第（１）項に記載の方法＠(3) The method according to claim (1), wherein the metal chloride is an alkaline earth metal chloride.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56156529A JPS606896B2 (en) | 1981-10-01 | 1981-10-01 | Method for back extraction of indium in organic solvent phase |
| DE3235693A DE3235693C2 (en) | 1981-10-01 | 1982-09-27 | Process for the back-extraction of indium ions from an organic solvent phase |
| BE0/209114A BE894530A (en) | 1981-10-01 | 1982-09-29 | PROCESS FOR RETURNING THE INDIUM OF CERTAIN PHASES OF ORGANIC SOLVENT |
| CA000412521A CA1193443A (en) | 1981-10-01 | 1982-09-30 | Method for back extraction of indium from organic solvent phase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56156529A JPS606896B2 (en) | 1981-10-01 | 1981-10-01 | Method for back extraction of indium in organic solvent phase |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5860619A true JPS5860619A (en) | 1983-04-11 |
| JPS606896B2 JPS606896B2 (en) | 1985-02-21 |
Family
ID=15629778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56156529A Expired JPS606896B2 (en) | 1981-10-01 | 1981-10-01 | Method for back extraction of indium in organic solvent phase |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS606896B2 (en) |
| BE (1) | BE894530A (en) |
| CA (1) | CA1193443A (en) |
| DE (1) | DE3235693C2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62141125A (en) * | 1985-12-09 | 1987-06-24 | Nitto Boseki Co Ltd | Method for infusibilization and carbonization treatment of pitch fiber and apparatus therefor |
| JP2017524808A (en) * | 2014-06-05 | 2017-08-31 | オウトテック （フィンランド） オサケ ユキチュアＯｕｔｏｔｅｃ （Ｆｉｎｌａｎｄ） Ｏｙ | Gold solvent extraction |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60145913A (en) * | 1984-01-05 | 1985-08-01 | Sumitomo Chem Co Ltd | Elution of indium absorbed to chelate resin |
| FR2623522B1 (en) * | 1987-11-24 | 1990-04-20 | Metaleurop Sa | HYDROMETALLURGICAL TREATMENT PROCESS FOR INDIUM CHLORIDE SOLUTION |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55148737A (en) * | 1979-05-11 | 1980-11-19 | Nippon Mining Co Ltd | Selective separation of indium |
-
1981
- 1981-10-01 JP JP56156529A patent/JPS606896B2/en not_active Expired
-
1982
- 1982-09-27 DE DE3235693A patent/DE3235693C2/en not_active Expired
- 1982-09-29 BE BE0/209114A patent/BE894530A/en not_active IP Right Cessation
- 1982-09-30 CA CA000412521A patent/CA1193443A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62141125A (en) * | 1985-12-09 | 1987-06-24 | Nitto Boseki Co Ltd | Method for infusibilization and carbonization treatment of pitch fiber and apparatus therefor |
| JP2017524808A (en) * | 2014-06-05 | 2017-08-31 | オウトテック （フィンランド） オサケ ユキチュアＯｕｔｏｔｅｃ （Ｆｉｎｌａｎｄ） Ｏｙ | Gold solvent extraction |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3235693A1 (en) | 1983-04-21 |
| BE894530A (en) | 1983-01-17 |
| DE3235693C2 (en) | 1985-05-02 |
| JPS606896B2 (en) | 1985-02-21 |
| CA1193443A (en) | 1985-09-17 |
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