JPS5848490B2 - Sansei Gas Nyoruchi Yuwahouhou - Google Patents
Sansei Gas Nyoruchi YuwahouhouInfo
- Publication number
- JPS5848490B2 JPS5848490B2 JP11169675A JP11169675A JPS5848490B2 JP S5848490 B2 JPS5848490 B2 JP S5848490B2 JP 11169675 A JP11169675 A JP 11169675A JP 11169675 A JP11169675 A JP 11169675A JP S5848490 B2 JPS5848490 B2 JP S5848490B2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- caustic soda
- sodium
- aluminosilicate
- 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.)
- Expired
Links
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 66
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 22
- 229910000503 Na-aluminosilicate Inorganic materials 0.000 claims description 14
- 239000000429 sodium aluminium silicate Substances 0.000 claims description 14
- 235000012217 sodium aluminium silicate Nutrition 0.000 claims description 14
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 13
- 239000007787 solid Substances 0.000 claims description 10
- 230000002378 acidificating effect Effects 0.000 claims description 7
- 230000003472 neutralizing effect Effects 0.000 claims description 7
- 239000002253 acid Substances 0.000 claims description 6
- 239000004115 Sodium Silicate Substances 0.000 claims description 5
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 claims description 5
- 239000010419 fine particle Substances 0.000 claims description 5
- 229910001388 sodium aluminate Inorganic materials 0.000 claims description 5
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 5
- 239000007789 gas Substances 0.000 description 21
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 7
- 238000007796 conventional method Methods 0.000 description 6
- 238000006386 neutralization reaction Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 229910000323 aluminium silicate Inorganic materials 0.000 description 4
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 229910021536 Zeolite Inorganic materials 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000010457 zeolite Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000004061 bleaching Methods 0.000 description 2
- 239000003518 caustics Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 235000010265 sodium sulphite Nutrition 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000002934 lysing effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- CRWJEUDFKNYSBX-UHFFFAOYSA-N sodium;hypobromite Chemical compound [Na+].Br[O-] CRWJEUDFKNYSBX-UHFFFAOYSA-N 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/20—Silicates
- C01B33/26—Aluminium-containing silicates, i.e. silico-aluminates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Description
【発明の詳細な説明】
本発明はアルマイト加工の前処理アルミニウム又はその
合金のアルカリエッチングにおいて生ずるアルミン酸ソ
ーダを含有する苛性ソーダの有効処理方法として、ケイ
酸ソーダを反応せしめ、アルミノケイ酸ソーダと苛性ソ
ーダにする場合において、晶析したアルミノケイ酸′ノ
ーダを遠心分離して、苛性゛ノーダ溶液と分離する際の
固形アルミノケイ酸ソーダ微粒子に付着している苛性ソ
ーダの中和方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention is an effective method for treating caustic soda containing sodium aluminate generated during alkali etching of pre-treated aluminum or its alloy for alumite processing. The present invention relates to a method for neutralizing caustic soda adhering to solid sodium aluminosilicate fine particles when crystallized aluminosilicate powder is centrifuged and separated from a caustic powder solution.
さら｛こ詳細に述べれば、遠心分離した固形アルミノケ
イ酸ソーダ微粒子は重量比で約１５優の苛性ソーダ溶液
が付着しているのでこれを一定容器内で攪拌しながら、
酸性ガスを接触せしめて中和する方法に係る。In more detail, the centrifuged solid sodium aluminosilicate fine particles have a caustic soda solution of about 15% by weight attached, so while stirring this in a constant container,
It relates to a method of neutralizing acid gas by contacting it.
アルマイト加工において前処理作業としてアルカリエッ
チング処理を５〜１０φの熱苛性ソーダによって行なう
時、アルミン酸ソーダが順次増加するとアルカリエッチ
ングの性能が低下する。When performing alkaline etching treatment with hot caustic soda of 5 to 10 diameter as a pretreatment work in alumite processing, as the amount of sodium aluminate increases sequentially, the performance of the alkaline etching deteriorates.
アルミン酸ソーダを除去して、苛性′ノーダを再循環し
て使用する方法が種々考えられ、その一方法として、ア
ルミン酸ソーダが一定量以上くこなった廃苛性ソーダ液
をこケイ酸ソーダを反応せしめて、アルミノケイ酸ソー
ダと苛性ソーダ６こして苛性ソーダは回収の上再循環し
、アルミノケイ酸′ノーダはゼオライト対応物質として
種々の用途に向ける方法がある。Various methods can be considered to remove sodium aluminate and recycle the caustic soda for use. One method is to react waste caustic soda solution that has exceeded a certain amount of sodium aluminate with sodium silicate. At the very least, there is a method in which the sodium aluminosilicate and the caustic soda are strained, the caustic soda is recovered and recycled, and the aluminosilicate sodium chloride is used for various purposes as a material compatible with zeolite.
この場合生或晶出した固形アルミノケイ酸ソーダ微粒子
は遠心分離機をこより苛性ソーダと分離するが約１５〜
２０重量係程度の苛性ソーダ液を含み苛性ソーダの濃度
は５〜ｘｏ％であるから固形アルミノケイ酸ソーダに対
しては苛性ソーダが１〜２％付着している計算Ｇこなる
。In this case, the raw or crystallized solid sodium aluminosilicate fine particles are separated from the caustic soda by passing through a centrifuge, but the
Since it contains a caustic soda solution of about 20% by weight and the concentration of caustic soda is 5 to xo%, it is calculated that 1 to 2% of caustic soda is attached to solid sodium aluminosilicate.
従って相当のアルカリ性を呈し、たとえば水ｌｌ中に前
記の遠心分離機６こよって分離した湿アルミノケイ酸′
ノーダ粒子を１００ｇ混入した液のｐＨは１２〜１３を
有す。Therefore, it exhibits considerable alkalinity, and, for example, the wet aluminosilicate separated by the centrifugal separator 6 in a liter of water is
The pH of the liquid containing 100 g of Noda particles is 12-13.
水でそのまま洗浄してもこのｐＨを１１以下（こするこ
とは困難である。Even if you wash it directly with water, the pH will be lower than 11 (it is difficult to rub it).
一度遠心分離機によって苛性ソーダから分離した固形ア
ルミノケイ酸ソーダ微粒子を水で洗浄した後、再び１０
００Ａ’の水に対し２００〜３００ｋｇの割で前記の苛
性ソーダが付着した固形アルミノケイ酸ソーダ微粒子を
混合し稀硫酸又は稀塩酸でｐＨが７〜８になるまで中和
して再び遠心分離機で脱水し乾燥して製品とするのが、
従来法である。Once the solid sodium aluminosilicate fine particles separated from the caustic soda using a centrifugal separator were washed with water,
Mix 200 to 300 kg of solid sodium aluminosilicate particles with caustic soda attached to 00A' water, neutralize with dilute sulfuric acid or dilute hydrochloric acid until the pH becomes 7 to 8, and dehydrate again using a centrifuge. The product is made by drying it.
This is the conventional method.
稀硫酸又は稀塩酸を使用すれば一部のゼオライトは強酸
のため分解されるので、代り４こＣＯ２又はＳＯ２を吹
き込んで中和することもできるが過剰（こ消費され、有
効利用率は２０％程度に過ぎなかった。If dilute sulfuric acid or dilute hydrochloric acid is used, some of the zeolite will be decomposed due to the strong acid, so it is possible to neutralize it by blowing in CO2 or SO2 instead, but the excess (this will be consumed and the effective utilization rate will be 20%) It was only a matter of degree.
従来方法は再度遠心分離機にて処理するため処理時間も
６〜８時間を要した。In the conventional method, processing time was also required for 6 to 8 hours since the product was processed again using a centrifugal separator.
この繁雑な従来法を改良する目的で鋭意研究の結果、完
威したのが本発明である。The present invention was the result of intensive research aimed at improving this complicated conventional method.
その構成は以下に記載する通りである。アルミン酸゛ノ
ーダを含有する苛性ソーダ溶液にケイ酸ソーダを反応せ
しめアルミノケイ酸ソータと苛性ソーダ（こし、苛性ソ
ーダ溶液からアルミノケイ酸ソーダを分離する場合にお
いて、遠心分前した状態で固形アルミノケイ酸ソーダ微
粒子に伺着する苛性′ノーダを一定容器内で酸性ガスを
接解せしめて中和することを特徴とする酸性ガス４こよ
る中和方法、である。Its configuration is as described below. When sodium silicate is reacted with a caustic soda solution containing aluminic acid, and the sodium silicate is strained using an aluminosilicate sorter, the sodium silicate is separated from the sodium hydroxide solution. This is a neutralization method using an acidic gas, characterized in that the caustic powder is neutralized by lysing an acidic gas in a certain container.
本発明において使用できる酸准ガスとしては、ＣＯ２，
ＳＯ２の外Ｃｌ２， Ｂｒ２、有機酸の蟻酸、醋酸等の
弱酸性ガスも使用できるが一般（こはＣＯ２又はＳＯ２
が好ましい。The acid quasi-gases that can be used in the present invention include CO2,
In addition to SO2, weakly acidic gases such as Cl2, Br2, and organic acids such as formic acid and acetic acid can also be used;
is preferred.
本発明を実施するには、たとえば第１図に示した耐圧攪
拌機付反応機を使用するのが好ましい。To carry out the present invention, it is preferable to use, for example, a pressure-resistant stirrer-equipped reactor shown in FIG.
実施例
第１図に示す反応機を用いて遠心分離機より取り出した
約１５％の苛性ソーダ溶液を付着する固形アルミノケイ
酸ソーダを装入口４より装入してＳＯ２ガスを常圧又は
それ以上に保持してガス導入口６より導入した。Example Using the reactor shown in Figure 1, solid sodium aluminosilicate to which about 15% caustic soda solution taken out from a centrifuge is charged is charged from charging port 4 to maintain SO2 gas at normal pressure or higher. The gas was then introduced from the gas inlet 6.
静か（こ攪拌しながらガスを導入する中にガスの吸収が
止ったのを終点としてガスを抜き取った後、中和された
固形アルミノケイ酸ソーダを取り出した。Gas was introduced while stirring gently, and the gas was removed when gas absorption stopped, and the neutralized solid sodium aluminosilicate was taken out.
本発明の方法と従来法と比較して次に示す。A comparison between the method of the present invention and a conventional method will be shown below.
従来法 本発明の方法
処理所要時間（時間） ６〜８ １〜２中和ガス
の効率％ ２０ ９９従 来 法 本発明
の方法
中和後の分離 遠′６分離機Ｆ 不 要分離が必
要
製品の価値 ｐＨ８程度 １〜２ ％ （７）亜硫
酸ソーダが混入
本発明による酸性ガスによる中和方法は製品に使用した
酸のソーダ塩が混入するが処理時間が短く容易であり、
中和に要する酸性ガスの使用効率が極めて高い。Conventional method Processing time required for the method of the present invention (hours) 6-8 1-2 Efficiency of neutralizing gas % 20 99 Conventional method Method of the present invention Separation after neutralization Far'6 Separator F Not required Products requiring separation (7) Contamination with sodium sulfite The method of neutralization using acidic gas according to the present invention involves contamination with the sodium salt of the acid used in the product, but the treatment time is short and easy;
Extremely high efficiency in using acidic gas required for neutralization.
酸性ガスにＳ０２ガスを用いる場合、たとえば排煙脱硫
の目的で導入ガスとして煙導ガスを用いる事も出来る。When using S02 gas as the acidic gas, a flue gas can also be used as the introduced gas, for example, for the purpose of flue gas desulfurization.
残査として亜硫酸ソーダとアルミノケイ酸ソーダの混合
物が得られ六価クロムの中和剤として有効に使用される
。A mixture of sodium sulfite and sodium aluminosilicate is obtained as a residue, which is effectively used as a neutralizer for hexavalent chromium.
又ＣＯ２を中和剤に使用すれば水中Ｎ｝Ｉ４イオンの吸
着に好都合の中性ゼオライトを得る外Ｃｌ２ ，Ｂｒ２
ガスを中和剤に用いると漂白力のある次亜塩素酸ソーダ
又は次亜臭素酸ソーダ１〜２φ混合した高級な漂白クレ
ンザ対応品を得る事が出来る。Also, if CO2 is used as a neutralizing agent, a neutral zeolite that is suitable for adsorption of N}I4 ions in water can be obtained.
When gas is used as a neutralizing agent, it is possible to obtain a high-grade bleaching cleanser product containing 1 to 2 φ of sodium hypochlorite or sodium hypobromite with bleaching power.
第１図：本発明の酸性ガスによる中和方法に使用して好
適な耐圧反応機の１例を示す。
１・・・・・・反応機、２・・・・・攪拌機、３・・・
・・攪拌羽、４・・・・−・湿固形アルミノケイ酸ソー
ダ粒子装入口、５・・・・・・ガス排出口、６・・・・
・・ガス導入口、７・・・・・・バルブ、８・・・・・
・圧力計、９・・・・・・製品排出口、１０・・・・・
安全弁。FIG. 1: An example of a pressure-resistant reactor suitable for use in the acid gas neutralization method of the present invention is shown. 1... Reactor, 2... Stirrer, 3...
... Stirring blade, 4 ... - Wet solid sodium aluminosilicate particle charging port, 5 ... Gas discharge port, 6 ...
...Gas inlet, 7...Valve, 8...
・Pressure gauge, 9...Product outlet, 10...
safety valve.
Claims (1)
イ酸ソーダを反応せしめアルミノケイ酸ソーダと苛性ソ
ーダにし、苛性゛ノーダ溶液からアルミノケイ酸ソーダ
を分離する場合において、遠心分離した状態で固形アル
ミノケイ酸ソーダ微粒子に付着する苛性ソーダを一定の
容器内で酸はガスを接触せしめて中和することを特徴と
する酸性ガスによる中和方法。1 Caustic soda solution containing sodium aluminate (when reacting sodium silicate to sodium aluminosilicate and caustic soda and separating sodium aluminosilicate from the caustic soda solution, it is centrifuged to form solid sodium aluminosilicate fine particles. A method for neutralizing adhering caustic soda using acidic gas, which is characterized by neutralizing adhering caustic soda by bringing the acid into contact with gas in a certain container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11169675A JPS5848490B2 (en) | 1975-09-17 | 1975-09-17 | Sansei Gas Nyoruchi Yuwahouhou |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11169675A JPS5848490B2 (en) | 1975-09-17 | 1975-09-17 | Sansei Gas Nyoruchi Yuwahouhou |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5235796A JPS5235796A (en) | 1977-03-18 |
| JPS5848490B2 true JPS5848490B2 (en) | 1983-10-28 |
Family
ID=14567835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11169675A Expired JPS5848490B2 (en) | 1975-09-17 | 1975-09-17 | Sansei Gas Nyoruchi Yuwahouhou |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5848490B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4243646A (en) * | 1977-10-04 | 1981-01-06 | Rolls-Royce Limited | Treatment of carbon fibre |
| AU563304B2 (en) * | 1984-12-21 | 1987-07-02 | Comalco Aluminium Limited | Soz leach to recover soda and alumina from red mud with recycle to bayer process |
| JPS621749A (en) * | 1985-06-28 | 1987-01-07 | Toray Ind Inc | Prepreg for high-strength composite material |
| JPS6236427A (en) * | 1985-08-12 | 1987-02-17 | Toray Ind Inc | Unidirectionally carbon fiber-reinforced high-strength composite material |
-
1975
- 1975-09-17 JP JP11169675A patent/JPS5848490B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5235796A (en) | 1977-03-18 |
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