JPH0710536A - Production of acidic aluminum salt - Google Patents
Production of acidic aluminum saltInfo
- Publication number
- JPH0710536A JPH0710536A JP5153688A JP15368893A JPH0710536A JP H0710536 A JPH0710536 A JP H0710536A JP 5153688 A JP5153688 A JP 5153688A JP 15368893 A JP15368893 A JP 15368893A JP H0710536 A JPH0710536 A JP H0710536A
- Authority
- JP
- Japan
- Prior art keywords
- aluminum
- aluminum hydroxide
- aluminum salt
- acidic
- acid
- 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
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は酸性アルミニウム塩の製
造方法に関する。詳しくは有機物を含有するバイヤー法
水酸化アルミニウムを用いこれと鉱酸を反応させること
により酸性アルミニウム塩を得る方法に於いて、着色の
少ない、更には透明性の改良された酸性アルミニウム塩
の製造方法に関するものである。FIELD OF THE INVENTION The present invention relates to a method for producing an acidic aluminum salt. More specifically, a method for producing an acidic aluminum salt by using a Bayer process aluminum hydroxide containing an organic substance and reacting this with a mineral acid, which is a method for producing an acidic aluminum salt with less coloring and improved transparency. It is about.
【０００２】[0002]
【従来の技術】硫酸アルミニウム、塩基性硫酸アルミニ
ウム、塩化アルミニウム、塩基性塩化アルミニウム等の
酸性アルミニウム塩は、上水道、工場用水、工場排水等
の水処理材、製紙用サイズ剤、消化剤、皮革なめし剤等
多岐に渡り使用されている。2. Description of the Related Art Acidic aluminum salts such as aluminum sulfate, basic aluminum sulfate, aluminum chloride and basic aluminum chloride are used for water treatment materials such as waterworks, factory water, factory wastewater, paper sizing agents, extinguishing agents and leather tanning. Used in a wide variety of agents.
【０００３】硫酸アルミニウムは通常、耐熱、耐酸材よ
り成る反応槽に硫酸を仕込み、これに水酸化アルミニウ
ムを投入して加熱反応させ、硫酸アルミニウムを得る。
塩基性硫酸アルミニウムは過剰の金属アルミニウム又は
水酸化アルミニウムを硫酸又は濃厚な硫酸アルミニウム
溶液に溶解せしめる方法等が知られている。また塩化ア
ルミニウムは、水酸化アルミニウムを塩酸に常圧で溶
解させて、塩化アルミニウムを得る方法水酸化アルミ
ニウムと塩酸を耐酸性の圧力釜で、加圧反応させて塩化
アルミニウムを得る方法水酸化アルミニウムを硫酸で
溶解させた後、塩化アルミニウムと炭酸カルシウムを加
えて硫酸根を石膏として分離し、塩化アルミニウムを得
る方法、等が知られている。更に塩基性塩化アルミニウ
ムも水酸化アルミニウムを塩酸或いは塩酸と硫酸の混酸
で加熱処理することにより得られることが知られてい
る。Aluminum sulfate is usually obtained by charging sulfuric acid into a reaction tank made of a heat-resistant and acid-resistant material, adding aluminum hydroxide to the reaction tank, and reacting with heating to obtain aluminum sulfate.
For basic aluminum sulfate, a method of dissolving excess metal aluminum or aluminum hydroxide in sulfuric acid or a concentrated aluminum sulfate solution is known. For aluminum chloride, a method of dissolving aluminum hydroxide in hydrochloric acid at atmospheric pressure to obtain aluminum chloride is a method of pressurizing aluminum hydroxide and hydrochloric acid in an acid-resistant pressure cooker to obtain aluminum chloride. Known is a method of obtaining aluminum chloride by dissolving it in sulfuric acid and then adding aluminum chloride and calcium carbonate to separate sulfate radicals as gypsum to obtain aluminum chloride. Further, it is known that basic aluminum chloride can also be obtained by heating aluminum hydroxide with hydrochloric acid or a mixed acid of hydrochloric acid and sulfuric acid.
【０００４】これら酸性アルミニウム塩は、用途によっ
て白色度、透明度を要求されるため、例えば、硫酸アル
ミニウムでは反応後の硫酸アルミニウム溶液を珪藻土で
プレコートした濾過装置を用いて精製したり、活性炭で
着色物質を吸着除去して使用される（例えば特開昭５０
−８７９８５号公報）。Since these acidic aluminum salts are required to have whiteness and transparency depending on their uses, for example, aluminum sulfate is purified by using a filtration device in which an aluminum sulfate solution after the reaction is precoated with diatomaceous earth, or activated carbon is used as a coloring substance. Used by adsorbing and removing
-87985).
【０００５】[0005]
【発明が解決しようとする課題】しかし、これら従来の
技術に於いては、酸性アルミニウム塩合成後、脱色の為
の濾過或いは吸着のプロセスを必要とする為、プロセス
の管理或いは生産性向上の観点からは、必ずしも満足の
できるものではなかった。加えて固形酸性アルミニウム
塩を得ようとする場合、例えば固形硫酸アルミニウム粉
末の製造を目的とする場合には、反応後の高温の硫酸ア
ルミニウム溶液を濾過、吸着することは作業が煩雑、且
つ危険であると共に、装置費、処理材の選定、価格等に
多くの問題を有し工業的には実施困難な状況にある。However, in these conventional techniques, a process of filtration or adsorption for decolorization is required after synthesizing the acidic aluminum salt, and therefore, it is necessary to control the process or improve productivity. From that, it was not always satisfactory. In addition, when trying to obtain a solid acidic aluminum salt, for example, when the purpose is to produce a solid aluminum sulfate powder, the operation is complicated and dangerous to filter and adsorb the hot aluminum sulfate solution after the reaction. In addition, there are many problems in equipment cost, selection of processing material, price, etc., and it is industrially difficult to implement.
【０００６】かかる事情下に鑑み本発明者等は、バイヤ
ー法水酸化アルミニウムを用い、且つ製品に着色の少な
い、或いは透明性の改良されたアルミニウム塩の製造方
法について研究を続けてきた結果、有機物を含有するバ
イヤー法水酸化アルミニウムと鉱酸を反応させて、酸性
アルミニウム塩を製造する際に、水酸化アルミニウム及
び／又は鉱酸に少量の過酸化水素を添加存在せしめ反応
せしめる場合には著しい着色低減効果、更には透明性の
改良効果が発現することを見出し、本発明を完成するに
至った。In view of such circumstances, the inventors of the present invention have continued research on a method for producing an aluminum salt which uses a Bayer process aluminum hydroxide and has little coloration in a product or improved transparency, and as a result, an organic substance was obtained. When producing an acidic aluminum salt by reacting aluminum hydroxide with a mineral acid containing a Bayer method, a remarkable coloring occurs when a small amount of hydrogen peroxide is added to aluminum hydroxide and / or a mineral acid to cause a reaction. It was found that a reduction effect and an improvement effect on transparency are exhibited, and the present invention has been completed.
【０００７】[0007]
【課題を解決するための手段】即ち本発明は、有機物を
含有するバイヤー法水酸化アルミニウムと鉱酸の反応に
より酸性アルミニウム塩を製造する方法に於いて、バイ
ヤー法水酸化アルミニウム及び／または鉱酸に０．０１
重量％〜０．３重量％〔水酸化アルミニウム（乾体基
準）に対し〕の過酸化水素を添加し、反応せしめること
を特徴とする酸性アルミニウム塩の製造方法を提供する
にある。Means for Solving the Problems That is, the present invention provides a method for producing an acidic aluminum salt by reacting a Bayer process aluminum hydroxide containing an organic substance with a mineral acid. To 0.01
Another object of the present invention is to provide a method for producing an acidic aluminum salt, which comprises adding hydrogen peroxide in an amount of 0.3% by weight to aluminum hydroxide (based on a dry matter), and causing the reaction.
【０００８】以下、本発明方法を更に詳細に説明する。
本発明の特徴は、有機物を含有するバイヤー法水酸化ア
ルミニウムと鉱酸を反応させるに際し、特定量の過酸化
水素を添加し反応させることにあり、かかる簡単な処理
により、着色の極めて低い固体状、或いは液体状の酸性
アルミニウム塩を得ることができる。The method of the present invention will be described in more detail below.
A characteristic of the present invention is that when a Bayer process aluminum hydroxide containing an organic substance is reacted with a mineral acid, a specific amount of hydrogen peroxide is added to the reaction, and the reaction is carried out by such a simple treatment. Alternatively, a liquid acidic aluminum salt can be obtained.
【０００９】バイヤー法によって製造される水酸化アル
ミニウム（ギブサイト）は、原料であるボーキサイト鉱
中に含有される有機物質がアルミン酸アルカリ溶液中に
部分的に分解されながら蓄積し、これが製品水酸化アル
ミニウムの析出時に共沈し、水酸化アルミニウム中に含
有されるため、通常炭素換算で約０．００１重量％〜約
０．１重量％の有機物質を含有している。このような有
機物質は蓚酸、酢酸、琥珀酸、フミン酸等が挙げられる
が、これら有機物質が析出水酸化アルミニウムに多量に
存在する場合、例えば炭素換算で約０．０１重量％以上
の有機物を含有する場合には、水酸化アルミニウムの着
色、或いはこれを原料として得られた酸性アルミニウム
塩の着色問題が生起する場合がある。着色はいかなる有
機物が原因か詳らかではないが、アルミニウム塩溶液、
或いは粉体に着色（赤み─ａ値、黄み──ｂ値）を与
え、更には透明性（Ｌ値）を悪化し商品価値を低下せし
める。 本発明に於いて有機物を含有するバイヤー法水
酸化アルミニウムとは炭素換算で約０．０１重量％以
上、普通には約０．０２重量％〜約０．１重量％の有機
物を含有するものをいう。Aluminum hydroxide (gibbsite) produced by the Bayer method accumulates while the organic substances contained in the raw material bauxite ore are partially decomposed in the alkaline aluminate solution, and this is the product aluminum hydroxide. Since it co-precipitates at the time of precipitation and is contained in aluminum hydroxide, it usually contains about 0.001 wt% to about 0.1 wt% of an organic substance in terms of carbon. Examples of such organic substances include oxalic acid, acetic acid, succinic acid, and humic acid. When a large amount of these organic substances is present in the precipitated aluminum hydroxide, for example, about 0.01% by weight or more of the organic substance in terms of carbon is used. When it is contained, coloring problem of aluminum hydroxide or coloring problem of acidic aluminum salt obtained by using it as a raw material may occur. It is not known what kind of organic matter causes the coloring, but aluminum salt solution,
Alternatively, the powder is colored (redness-a value, yellowness-b value), and further the transparency (L value) is deteriorated to lower the commercial value. In the present invention, the Bayer process aluminum hydroxide containing an organic material is one containing about 0.01% by weight or more, usually about 0.02% to about 0.1% by weight of an organic material in terms of carbon. Say.
【００１０】本発明に於いて、酸性アルミニウム塩とは
酸性を呈するアルミニウム塩であり例えば、硫酸アルミ
ニウム、塩基性硫酸アルミニウム、塩化アルミニウム、
塩基性塩化アルミニウム等を言い、その製造方法もバイ
ヤー法により得られた水酸化アルミニウムを用い、これ
に鉱酸（硫酸アルミニウム、塩基性硫酸アルミニウムに
あっては硫酸、塩化アルミニウム、塩基性塩化アルミニ
ウムにあっては塩酸、或いは塩酸と硫酸の混酸）を反応
させる方法、更にはバイヤー法により得られた水酸化ア
ルミニウムを用いこれをアルカリ溶液に溶解させたアル
ミン酸アルカリ溶液と鉱酸を反応させることにより酸性
アルミニウム塩を得る方法等の公知の方法に於いて、ア
ルミニウム原料が酸と反応していない段階で、水酸化ア
ルミニウム、或いはアルミン酸アルカリ等のアルミニウ
ム原料側に、或いは鉱酸側、更には両方に過酸化水素を
添加した後、これを公知の方法で反応させると言う極め
て簡単な方法で実施し得る。本発明に於いてはかかる処
理を行うことにより着色低減効果はもとより、塩化アル
ミニウム、塩基性塩化アルミニウムに於いては透明性の
改良効果の発現も大である。In the present invention, the acidic aluminum salt is an acidic aluminum salt, and examples thereof include aluminum sulfate, basic aluminum sulfate, aluminum chloride,
Basic aluminum chloride, etc. is used, and its manufacturing method also uses aluminum hydroxide obtained by the Bayer method, and in addition to this, mineral acids (in the case of aluminum sulfate and basic aluminum sulfate, sulfuric acid, aluminum chloride, basic aluminum chloride If there is a method of reacting hydrochloric acid, or a mixed acid of hydrochloric acid and sulfuric acid), and further by using aluminum hydroxide obtained by the Bayer method and reacting this with an alkaline aluminate solution dissolved in an alkaline solution, a mineral acid. In a known method such as a method for obtaining an acidic aluminum salt, at the stage where the aluminum raw material has not reacted with an acid, aluminum hydroxide, or an aluminum aluminate or other aluminum raw material side, or a mineral acid side, or both After adding hydrogen peroxide to the mixture, the reaction is carried out by a known method. It can be. In the present invention, such a treatment not only brings about the effect of reducing the coloration, but also exhibits the effect of improving the transparency of aluminum chloride and basic aluminum chloride.
【００１１】本発明方法によって使用される過酸化水素
の量は、水酸化アルミニウムに含有される炭素量によっ
てその最適量が異なるので一義的ではないが、一般には
反応に供する水酸化アルミニウム（乾体基準）に対して
約０．０１重量％〜０．３重量％、好ましくは酸が硫酸
の場合は約０．０５重量％〜約０．２５重量％、塩酸の
場合は約０．０２重量％〜約０．３重量％の範囲で使用
される。過酸化水素の量が約０．０１重量％未満と少な
過ぎる場合には、充分な脱色及び透明性の改良効果が得
られず、また約０．３重量％より多い場合には、理由は
詳びらかではないが黄色に発色し、又過酸化水素の分解
による発泡が増大し操業安全性の面から好ましくない。The amount of hydrogen peroxide used in the method of the present invention is not unique because the optimum amount varies depending on the amount of carbon contained in aluminum hydroxide, but it is generally unspecified, but the amount of hydrogen peroxide (dry matter 0.01% to 0.3% by weight, preferably about 0.05% to about 0.25% by weight when the acid is sulfuric acid, and about 0.02% by weight when the acid is hydrochloric acid. Used in the range of about 0.3% by weight. If the amount of hydrogen peroxide is too small, less than about 0.01% by weight, sufficient decolorization and transparency improving effects cannot be obtained, and if it is more than about 0.3% by weight, the reason is unknown. Although it is not bright, it develops yellow color, and foaming due to decomposition of hydrogen peroxide increases, which is not preferable in terms of operation safety.
【００１２】[0012]
【本発明の効果】以上詳述した本発明によれば、従来公
知のバイヤー法により得られた水酸化アルミニウムを原
料アルミナ源として用いた酸性アルミニウム塩の製造に
於いて、アルミナ原料側、或いは酸に予め特定量の過酸
化水素を添加存在せしめるという極めて簡単な方法で、
廉価にかつ優れた脱色効果或いは透明性の改良効果が得
られるもので、加えて、活性炭処理やプレコートによる
濾過法の適用が困難であった固体硫酸アルミニウムの着
色、更には活性炭処理によっては効果の改善が見られな
かった塩化アルミニウムや塩基性塩化アルミニウムの着
色に対しても脱色効果を有するもので、その工業的価値
は頗る大なるものである。According to the present invention described in detail above, in the production of an acidic aluminum salt using aluminum hydroxide obtained by the conventionally known Bayer method as a raw material alumina source, the alumina raw material side or acid In a very simple method of adding a specific amount of hydrogen peroxide to the
It is inexpensive and can obtain an excellent decolorizing effect or transparency improving effect. In addition, coloring of solid aluminum sulfate, which was difficult to apply the activated carbon treatment or the filtration method by pre-coating, and further the effect of the activated carbon treatment is effective. It also has a decolorizing effect on the coloring of aluminum chloride and basic aluminum chloride, which have not been improved, and its industrial value is extremely large.
【００１３】[0013]
【実施例】以下実施例により、本発明を更に詳細に説明
するが、本発明はかかる実施例により制限を受けるもの
ではない。尚、本発明に於いて、炭素含有率並びに色度
は以下の方法により測定した。 ・炭素含有率 ：プレゲル法に準拠し測定した。 ・色度（ａ値、ｂ値、Ｌ値）：JIS Z8722-1982「物体色
の測定方法」に準拠し、日本電色工業（株）製色差計Z-
1001ppを用い測定した。The present invention will be described in more detail with reference to the following examples, but the present invention is not limited to these examples. In the present invention, carbon content and chromaticity were measured by the following methods. Carbon content: Measured according to the Pregel method.・ Chromaticity (a value, b value, L value): Color difference meter Z- manufactured by Nippon Denshoku Industries Co., Ltd. according to JIS Z8722-1982 "Measuring method of object color"
It was measured using 1001 pp.
【００１４】実施例１ 市販のバイヤー法水酸化アルミニウム（商品名；Ｃ−１
２、住友化学工業株式会社製、炭素含有率０．０３２重
量％）１５．６ｇにイオン交換水１６．５ｇを加えスラ
リー状となし、次いで攪拌下、硫酸（特級試薬、純度９
６％、和光純薬工業株式会社製）３０．２ｇを添加し、
１００℃で１時間加熱反応させた後、水を加えて硫酸ア
ルミニウム中のＡｌ2 Ｏ3 濃度が８重量％になるように
調整した。 得られた硫酸アルミニウムの色度（ｂ値）
を測定したところ、７．２７であった。Example 1 Commercially available Bayer process aluminum hydroxide (trade name: C-1)
2. Made by Sumitomo Chemical Co., Ltd., carbon content 0.032% by weight, 16.5 g of ion-exchanged water is added to form a slurry, and then sulfuric acid (special grade reagent, purity 9
6%, manufactured by Wako Pure Chemical Industries, Ltd.) 30.2 g,
After heating and reacting at 100 ° C. for 1 hour, water was added to adjust the Al 2 O 3 concentration in aluminum sulfate to be 8% by weight. Chromaticity (b value) of the obtained aluminum sulfate
Was measured and found to be 7.27.
【００１５】次いで、上記方法に於いて、硫酸と反応前
の水酸化アルミニウムスラリーに過酸化水素（純度３０
％、和光純薬株式会社製）を水酸化アルミニウム（乾体
基準）に対し、０．２重量％、０．８重量％、１．７重
量％を各々添加した後、これを用い上記と同様の方法で
硫酸と反応させ硫酸アルミニウムを得た。反応時の反応
状態を表１に示す。また得られた硫酸アルミニウムの色
度（ｂ値）を測定した。その結果を表１に示す。Then, in the above method, hydrogen peroxide (purity: 30%) was added to the aluminum hydroxide slurry before the reaction with sulfuric acid.
%, Manufactured by Wako Pure Chemical Industries, Ltd.) was added to aluminum hydroxide (on a dry basis) in an amount of 0.2% by weight, 0.8% by weight and 1.7% by weight, respectively. And aluminum sulfate was obtained by reacting with sulfuric acid. Table 1 shows the reaction state during the reaction. The chromaticity (b value) of the obtained aluminum sulfate was measured. The results are shown in Table 1.
【００１６】[0016]
【表１】 [Table 1]
【００１７】実施例２ 実施例１の方法に於いて、過酸化水素の添加量を０．１
０重量％、０．１５重量％にした他は実施例１と同様に
硫酸アルミニウムを合成した。このようにして得られた
硫酸アルミニウムの色度（ｂ値）を測定した。その結果
を表２に示す。Example 2 In the method of Example 1, the amount of hydrogen peroxide added was 0.1.
Aluminum sulfate was synthesized in the same manner as in Example 1 except that the amounts were 0% by weight and 0.15% by weight. The chromaticity (b value) of the aluminum sulfate thus obtained was measured. The results are shown in Table 2.
【００１８】[0018]
【表２】 [Table 2]
【００１９】比較例１ 実施例１と同様にして得られた硫酸アルミニウム（過酸
化水素無添加）と活性炭粉末（商品名；太閣活性炭、二
村化学工業株式会社製）５０ｐｐｍ及び１００ｐｐｍを
各々攪拌機能を有するビーカーに供給し、２０℃×２０
０ｒｐｍで１時間攪拌処理した。得られた硫酸アルミニ
ウムの色度（ｂ値）を表３に示す。Comparative Example 1 Aluminum sulfate (without hydrogen peroxide added) obtained in the same manner as in Example 1 and activated carbon powder (trade name; Daikaku activated carbon, manufactured by Nimura Chemical Co., Ltd.) of 50 ppm and 100 ppm were respectively stirred. Supply to a beaker with 20 ℃ × 20
The mixture was stirred at 0 rpm for 1 hour. Table 3 shows the chromaticity (b value) of the obtained aluminum sulfate.
【００２０】[0020]
【表３】 [Table 3]
【００２１】実施例４ 実施例１で用いたと同じ市販のバイヤー法水酸化アルミ
ニウム３１６．７ｇに水酸化アルミニウムに対し各々
０．０２５重量％、０．０５重量％、０．１０重量％の
過酸化水素を添加した後、特級試薬の塩酸（純度３５
％、和光純薬工業株式会社製）７００ｇを各々を加え
て、タンタル製のオートクレーブ中で１５０℃×２時間
反応させて、塩基性塩化アルミニウムを合成し、得られ
た溶液を濾過して未反応の水酸化アルミニウムを除去し
た。次いで塩化アルミニウム中のＡｌ2Ｏ3 濃度が１８
重量％となるように調整した。このようにして得られた
塩化アルミニウムの色度を表４に示す。Example 4 316.7 g of the same commercial Bayer aluminum hydroxide as used in Example 1 was added with 0.025% by weight, 0.05% by weight and 0.10% by weight of peroxide, respectively, based on aluminum hydroxide. After adding hydrogen, hydrochloric acid (purity 35
%, Manufactured by Wako Pure Chemical Industries, Ltd.) and reacted at 150 ° C. for 2 hours in a tantalum autoclave to synthesize basic aluminum chloride, and the resulting solution is filtered and unreacted. Of aluminum hydroxide was removed. Then, the Al 2 O 3 concentration in aluminum chloride was 18
It was adjusted so as to be wt%. The chromaticity of the aluminum chloride thus obtained is shown in Table 4.
【００２２】[0022]
【表４】 [Table 4]
───────────────────────────────────────────────────── フロントページの続き (72)発明者 蘆谷 俊夫 愛媛県新居浜市惣開町５番１号 住友化学 工業株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshio Tsugaya 5-1 Sokai-cho, Niihama-shi, Ehime Sumitomo Chemical Co., Ltd.
Claims (3)
ミニウムと鉱酸の反応により酸性アルミニウム塩を製造
する方法に於いて、バイヤー法水酸化アルミニウム及び
／または鉱酸に０．０１重量％〜０．３重量％〔水酸化
アルミニウム（乾体基準）に対し〕の過酸化水素を添加
し、反応せしめることを特徴とする酸性アルミニウム塩
の製造方法。1. A method for producing an acidic aluminum salt by reacting a Bayer process aluminum hydroxide containing an organic substance with a mineral acid, wherein 0.01% by weight to 0. A method for producing an acidic aluminum salt, which comprises adding 3% by weight of hydrogen peroxide [based on aluminum hydroxide (on a dry matter basis)] and reacting it.
項１記載の酸性アルミニウム塩の製造方法。2. The method for producing an acidic aluminum salt according to claim 1, wherein the mineral acid is sulfuric acid.
項１記載の酸性アルミニウム塩の製造方法。3. The method for producing an acidic aluminum salt according to claim 1, wherein the mineral acid is hydrochloric acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5153688A JPH0710536A (en) | 1993-06-24 | 1993-06-24 | Production of acidic aluminum salt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5153688A JPH0710536A (en) | 1993-06-24 | 1993-06-24 | Production of acidic aluminum salt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0710536A true JPH0710536A (en) | 1995-01-13 |
Family
ID=15567973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5153688A Pending JPH0710536A (en) | 1993-06-24 | 1993-06-24 | Production of acidic aluminum salt |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0710536A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1314696A1 (en) * | 2001-11-21 | 2003-05-28 | Sony Corporation | Method for preparing aluminum sulfate, aluminum sulfate and waste water treatment using the obtained aluminum sulfate |
| JP2018058748A (en) * | 2016-10-05 | 2018-04-12 | 株式会社興徳クリーナー | Process for manufacturing aluminum compound solution |
-
1993
- 1993-06-24 JP JP5153688A patent/JPH0710536A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1314696A1 (en) * | 2001-11-21 | 2003-05-28 | Sony Corporation | Method for preparing aluminum sulfate, aluminum sulfate and waste water treatment using the obtained aluminum sulfate |
| CN1296281C (en) * | 2001-11-21 | 2007-01-24 | 索尼公司 | Aluminium sulfate, its preparation method and use thereof |
| KR101165425B1 (en) * | 2001-11-21 | 2012-07-12 | 소니 주식회사 | A method for manufacturing sulfuric acid aluminum and a wastewater treatment apparatus for using an industrial composition |
| JP2018058748A (en) * | 2016-10-05 | 2018-04-12 | 株式会社興徳クリーナー | Process for manufacturing aluminum compound solution |
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