JPS59213618A - Purifying method of potassium salt - Google Patents
Purifying method of potassium saltInfo
- Publication number
- JPS59213618A JPS59213618A JP2129083A JP2129083A JPS59213618A JP S59213618 A JPS59213618 A JP S59213618A JP 2129083 A JP2129083 A JP 2129083A JP 2129083 A JP2129083 A JP 2129083A JP S59213618 A JPS59213618 A JP S59213618A
- Authority
- JP
- Japan
- Prior art keywords
- thallium
- potassium
- resin
- potassium salt
- chelate resin
- 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
Landscapes
- Treatment Of Water By Ion Exchange (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、アミノアルキレンリン酸型キレ−ト樹脂を用
いて硝酸カリウム、硫酸カリウム、塩化カリウム、炭酸
カリウムなどのカリウム塩類中に含有するタリウムを吸
着除去し、カリウム塩類を精製する方法に関するもので
ある。Detailed Description of the Invention The present invention uses an aminoalkylene phosphate type chelate resin to adsorb and remove thallium contained in potassium salts such as potassium nitrate, potassium sulfate, potassium chloride, and potassium carbonate. It relates to a method of purification.
現在、硝酸カリウム、硫酸カリウム、塩化カリウム、炭
酸カリウムなどのカリウム塩類は、特殊ガラス製造にお
いて使用されているが、その際有害な金属であるタリウ
ムが混入してくる。したがって、これらカリウム塩類を
再使用するには混入したタリウムを除去する必要がある
。しかしながら、今日までタリウムを除去する方法に関
してはあまり例かなく、しかもアミノアルキレンリン酸
型キレート樹脂を使用する方法は知られていなかった。Currently, potassium salts such as potassium nitrate, potassium sulfate, potassium chloride, and potassium carbonate are used in specialty glass manufacturing, but they are contaminated with the toxic metal thallium. Therefore, in order to reuse these potassium salts, it is necessary to remove the contaminated thallium. However, to date, there have been few examples of methods for removing thallium, and no method using an aminoalkylene phosphate type chelate resin has been known.
本発明者らは、カリウム塩類に含まれているタリウムを
除去し、カリウム塩類を再使用できる精製方法について
鋭意研究を行なったところ、アミノアルキレンリン酸型
キレート樹脂を使用すればカリウム塩類中のタリウムを
低濃度までそれらの水溶液から吸着除去でき、カリウム
塩類を再使用することができることを見出した。しかも
、タリウムを吸着したキレート樹脂は鉱酸またはおよび
アルカリを使用することにより、容易に再生することが
でき、再使用可能であることから、経済的にも非常に大
きな利点がある。The present inventors conducted intensive research on a purification method that can remove thallium contained in potassium salts and reuse them, and found that if an aminoalkylene phosphate type chelate resin is used, thallium in potassium salts can be removed. It has been found that potassium salts can be adsorbed and removed from their aqueous solutions down to low concentrations, and the potassium salts can be reused. In addition, the chelate resin that has adsorbed thallium can be easily regenerated and reused by using mineral acids or alkalis, and therefore has a very large economic advantage.
本発明におけるタリウムの吸着除去方法としては、カリ
ウム塩類を１〜５０％好ましくは１０〜３０％含有した
水溶液を反応槽内でアミノアルキレンリン酸型キレート
樹脂と処理するバッチ法や、アミノアルキレンリン酸型
キレ−ト樹脂を樹脂塔に充填した後、上記のカリウム塩
類水溶液を−過方式または循環方式で通液処理するカラ
ム法などが考えられるか、これらに限定されることはな
い。The method for adsorption and removal of thallium in the present invention includes a batch method in which an aqueous solution containing 1 to 50%, preferably 10 to 30%, of potassium salts is treated with an aminoalkylene phosphate chelate resin in a reaction tank, and a method for removing thallium using aminoalkylene phosphate. Possible methods include a column method in which a resin tower is filled with a type chelate resin, and then the above potassium salt aqueous solution is passed therethrough in a filtration method or a circulation method, but the method is not limited thereto.
なお、処理後のカリウム塩類の水溶液は、濃縮法、再結
晶法などにより、濃縮または固形化し、再使用すること
か可能となる。Note that the aqueous solution of potassium salts after the treatment can be concentrated or solidified by a concentration method, a recrystallization method, etc., and then reused.
本発明におけるアミノアルキレンリン酸形キレート樹脂
は、樹脂中に官能基としてアミノアルキレンリン酸基す
なわち、−ＮＲ−ＣＨＲ′−ＰＯ（ＯＲ″）２または（
ＯＲ″）２の一般式で示される基を有している樹脂であ
り、式中のＲはＨ、ＣＨ３、Ｃ２Ｈ５を、Ｒ′はＨ、Ｃ
Ｈ３、Ｃ２Ｈ５、Ｃ３Ｈ７、Ｃ４Ｈ９、ＣＨ２−Ｃ６Ｈ
５を、Ｒ″はＨ、アルカリ金属、アルカリ土類金属を示
す。The aminoalkylene phosphate type chelate resin in the present invention has an aminoalkylene phosphate group as a functional group in the resin, that is, -NR-CHR'-PO(OR'')2 or (
It is a resin having a group represented by the general formula of OR'')2, in which R is H, CH3, C2H5, and R' is H, C
H3, C2H5, C3H7, C4H9, CH2-C6H
5, and R″ represents H, an alkali metal, or an alkaline earth metal.
またここに用いる樹脂の母体としては、スチレン−ジヒ
ニルベンゼン共重合体、フェノール・ホルマリン樹脂、
レゾルシン−ホルマリン樹脂、エポキシ樹脂、アクリル
樹脂、塩化ビニル樹脂などが用いられる。In addition, the base material of the resin used here is styrene-dihinylbenzene copolymer, phenol/formalin resin,
Resorcinol-formalin resin, epoxy resin, acrylic resin, vinyl chloride resin, etc. are used.
以下実施例により本発明を説明する。The present invention will be explained below with reference to Examples.
実施例−１
ガラス製造工程から回収された、タリウムを、１５０ｐ
ｐｍ含有する１５％硝酸カリウム水溶液を官能基として
を有し、フェ
ノール−ホルマリン樹脂を母体としたアミノアルキレン
リン酸型キレート樹脂１ｌを充填したカラム（内径８０
ｍｍφ）に通液速度ＳＶ５、上向流にて通液しタリウム
の除去を行なった。Example-1 150p of thallium recovered from the glass manufacturing process
A column packed with 1 liter of an aminoalkylene phosphate type chelate resin containing 15% potassium nitrate aqueous solution containing pm as a functional group and using a phenol-formalin resin as a matrix (inner diameter 80
mmφ) at a flow rate of SV5 and an upward flow to remove thallium.
処理液中のタリウム濃度を表−１に示す。Table 1 shows the thallium concentration in the treatment solution.
通液倍率１００ｌ／ｌ−Ｒまでの流出した１５％硝酸カ
リウム水溶液を固形化し硝酸カリウムとしたところ、タ
リウム含有量は０．０００１％以下であり、硝酸カリウ
ムの純分は９９．９９％以上であった。When the 15% potassium nitrate aqueous solution that flowed out at a flow rate of 100 l/l-R was solidified to potassium nitrate, the thallium content was 0.0001% or less, and the purity of potassium nitrate was 99.99% or more.
実施例−２
タリウムを０．２１％含有した硝酸カリウムを水で１０
％水溶液になるよう溶解した。次に官能基として を
有し、スチレンージビニ
ルベンゼン共重合体を母体としたアミノアルキレンリン
酸型キレート樹脂１００ｍｌをカラムに充填した後、上
記の１０％硫酸カリウム水溶液を通液速度ＳＶ１０下向
流にて通液した。Example-2 Potassium nitrate containing 0.21% thallium was mixed with water for 10
% aqueous solution. Next, after filling the column with 100 ml of an aminoalkylene phosphate type chelate resin having as a functional group and using a styrene-divinylbenzene copolymer as the base material, the above 10% potassium sulfate aqueous solution was passed through the column at a flow rate of SV10 in a downward flow. The liquid was passed through.
なお、１０％硫酸カリウム水溶液中のタリウム濃度は２
１０ｐｐｍであった。In addition, the thallium concentration in a 10% potassium sulfate aqueous solution is 2
It was 10 ppm.
処理液中のタリウム濃度を表−２に示す。Table 2 shows the thallium concentration in the treatment solution.
通液倍率１００ｌ／ｌ−Ｒまでタリウムは検出されず処
理液の硫酸カリウムは再使用可能であることが認められ
た。No thallium was detected up to a liquid flow rate of 100 l/l-R, and it was confirmed that potassium sulfate in the treatment liquid could be reused.
実施例−３
タリウムを０．１８％含有した塩化カリウムを水で３０
％水溶液になるよう溶解した。この水溶液１ｌずつを３
個の容器にそれぞれ加え、官能基としておよび
を有しポリ塩化ビニル樹脂を母体としたアミノアルキレ
ンリン酸型キレート樹脂２０ｍｌ、５０ｍｌおよび１０
０ｍｌをそれぞれ３個の容器に添加し、３時間撹拌処理
後、固液分離した。Example-3 Potassium chloride containing 0.18% thallium was mixed with water for 30%
% aqueous solution. Add 1 liter of this aqueous solution to 3
Add 20 ml, 50 ml and 10 ml of aminoalkylene phosphate type chelate resin containing polyvinyl chloride resin as a base material and having and as a functional group to each container.
0 ml was added to each of three containers, and after stirring for 3 hours, solid-liquid separation was performed.
処理後の塩化カリウム水溶液中のタリウム濃度を表−３
に示す。Table 3 shows the thallium concentration in the potassium chloride aqueous solution after treatment.
Shown below.
Claims (1)
ウム塩類中に含有するタリウムを吸着除去し、カリウム
塩類を精製する方法。A method for purifying potassium salts by adsorbing and removing thallium contained in potassium salts using an aminoalkylene phosphate chelate resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2129083A JPS59213618A (en) | 1983-02-10 | 1983-02-10 | Purifying method of potassium salt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2129083A JPS59213618A (en) | 1983-02-10 | 1983-02-10 | Purifying method of potassium salt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59213618A true JPS59213618A (en) | 1984-12-03 |
Family
ID=12051000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2129083A Pending JPS59213618A (en) | 1983-02-10 | 1983-02-10 | Purifying method of potassium salt |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59213618A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009167050A (en) * | 2008-01-15 | 2009-07-30 | Toagosei Co Ltd | Method for producing high purity alkali metal carbonate aqueous solution |
| CN104773863A (en) * | 2015-02-13 | 2015-07-15 | 湖南永清环保研究院有限责任公司 | Deep purification process for thallium-containing waste water |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5250392A (en) * | 1975-10-20 | 1977-04-22 | Takeda Chem Ind Ltd | Process for preparing chelate resins |
| JPS57105404A (en) * | 1980-12-23 | 1982-06-30 | Sumitomo Chem Co Ltd | Preparation of chelate resin |
-
1983
- 1983-02-10 JP JP2129083A patent/JPS59213618A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5250392A (en) * | 1975-10-20 | 1977-04-22 | Takeda Chem Ind Ltd | Process for preparing chelate resins |
| JPS57105404A (en) * | 1980-12-23 | 1982-06-30 | Sumitomo Chem Co Ltd | Preparation of chelate resin |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009167050A (en) * | 2008-01-15 | 2009-07-30 | Toagosei Co Ltd | Method for producing high purity alkali metal carbonate aqueous solution |
| CN104773863A (en) * | 2015-02-13 | 2015-07-15 | 湖南永清环保研究院有限责任公司 | Deep purification process for thallium-containing waste water |
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