JPS61146384A - Purifying method of waste liquid of hydrochloric acid pickling of steel - Google Patents
Purifying method of waste liquid of hydrochloric acid pickling of steelInfo
- Publication number
- JPS61146384A JPS61146384A JP26519884A JP26519884A JPS61146384A JP S61146384 A JPS61146384 A JP S61146384A JP 26519884 A JP26519884 A JP 26519884A JP 26519884 A JP26519884 A JP 26519884A JP S61146384 A JPS61146384 A JP S61146384A
- Authority
- JP
- Japan
- Prior art keywords
- waste liquid
- hydrochloric acid
- steel
- acid pickling
- liquid
- 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
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/36—Regeneration of waste pickling liquors
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は鉄鋼の塩酸酸洗廃液の精製方法とくに該廃液中
のスラジ及びＳｉＯ２の除去方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for purifying a waste solution from hydrochloric acid pickling of steel, and particularly to a method for removing sludge and SiO2 from the waste solution.
（従来の技術）
鉄鋼の塩酸酸洗廃液中には多量のＦ・が含まれているた
め焙焼炉を用い【焙焼したシ、結晶化処理方法によって
Ｆ・を酸化鉄として回収し、顔料や充填材あるいはフェ
ライト原料として利用している。(Conventional technology) Since the waste liquid from hydrochloric acid pickling of steel contains a large amount of F, a roasting furnace is used to recover the F as iron oxide using a crystallization treatment method. It is used as filler material or raw material for ferrite.
（発明が解決しようとする問題点）
ところで前記廃酸にはＦ・のほか、ごく微量であるが、
ＭｎＣｌ２． ＣｒＣｔｓ ｔ ＣａＣｌ２ 、８１０
２等が含まれているため、高級な磁性材料などへの利用
が妨げられている。(Problems to be Solved by the Invention) By the way, the waste acid contains, in addition to F., although in very small amounts,
MnCl2. CrCts t CaCl2, 810
2, etc., which prevents its use in high-grade magnetic materials.
本発明の目的とするところは、前記廃酸中の主として浮
遊物質（スラジ、５１０２）を除去してフエライト原料
用として好適なものとする鉄鋼の塩酸酸洗廃液の精製方
法を提供するにある。An object of the present invention is to provide a method for purifying a waste solution from hydrochloric acid pickling of steel, which mainly removes suspended substances (sludge, 5102) from the waste acid and makes it suitable for use as a ferrite raw material.
（問題点を解決するための手段） 本発明の前記の目的は下記の方法によって達成される。(Means for solving problems) The above objects of the invention are achieved by the following method.
（１）鉄鋼の塩酸酸洗廃液を、活性炭濾過器を用いてＦ
遇し、該廃液中に含まれるスラジ及び粗粒ＳｉＯ２を除
去することを特徴とする鉄鋼の塩酸酸洗廃液の精製方法
。(1) The waste liquid from hydrochloric acid pickling of steel is filtered using an activated carbon filter.
A method for purifying a waste liquid from hydrochloric acid pickling of steel, characterized in that sludge and coarse SiO2 contained in the waste liquid are removed.
（２）鉄鋼の塩酸酸洗廃液を、活性炭濾過器を用いてろ
過し、該廃液中に含まれるスラジ及び粗粒ＳｉＯ２を除
去した後、シリカゲル粒子を充填した吸着塔を通液させ
【微粒ｓｉｏ□を除去することを特徴とする鉄鋼の塩酸
酸洗廃液の精製方法。(2) After filtering the waste liquid from hydrochloric acid pickling of steel using an activated carbon filter to remove the sludge and coarse SiO2 contained in the waste liquid, the liquid is passed through an adsorption tower filled with silica gel particles [fine SiO2 A method for purifying a waste liquid from hydrochloric acid pickling of steel, characterized by removing □.
本発明者らは鉄鋼の塩酸酸洗廃液中の主としてスラジ、
粗粒ＳｉＯ２を、核酸法廃液を活性炭濾過器を通じて濾
過することによって減少せしめることができ、さらに必
要に応じて第２段階としてこのν液をシリカゲル粒子を
充填した吸着塔を通液させることによって微粒ＳｌＯ□
を著しく減少せしめうることを確めたものである。The present inventors mainly found sludge in the waste liquid from hydrochloric acid pickling of steel,
Coarse particles of SiO2 can be reduced by filtering the nucleic acid method waste liquid through an activated carbon filter, and if necessary, as a second step, this ν solution can be passed through an adsorption tower filled with silica gel particles to reduce fine particles. SlO□
It has been confirmed that it is possible to significantly reduce the
以下、本発明を図面にもとづいて説明する。Hereinafter, the present invention will be explained based on the drawings.
第１図は本発明を実施するための竪型の濾過もしくは吸
着装置である。１は耐酸、耐圧性の容器であって、上部
にパルプ２、送液管３からなる給液口４を備え、下部に
排出管５、パルプ６からなる排液ロアを備えている。こ
の排液ロアの塔内側は、炉材保持整流板８ａ＋８ｂ、ス
トレーナ−９ｍ ＋９ｂによ＃）Ｆ材１０の流出を防止
している。かかる構造の装置を活性炭一過器として構成
するときは、炉材として粒径０．２５〜７１１１１Ｉの
活性炭粒子を充填し、又吸着塔として構成するときは炉
材としテ粒径０．４２〜５箇のシリカゲル粒子を充填す
る。FIG. 1 shows a vertical filtration or adsorption device for carrying out the present invention. Reference numeral 1 denotes an acid-resistant and pressure-resistant container, which is equipped with a liquid supply port 4 consisting of a pulp 2 and a liquid feeding pipe 3 at the upper part, and a liquid drain lower consisting of a discharge pipe 5 and the pulp 6 at the lower part. Inside the column of this drain lower, the outflow of the F material 10 is prevented by furnace material holding rectifying plates 8a+8b and strainers 9m+9b. When an apparatus with this structure is configured as an activated carbon passer, activated carbon particles with a particle size of 0.25 to 71111I are filled as the furnace material, and when configured as an adsorption tower, the furnace material is filled with activated carbon particles with a particle size of 0.42 to 71111I as the furnace material. Fill with 5 silica gel particles.
第２図は本発明の実施の態様を示すもので、酸洗廃液は
送液デンゾ１４、パルプ１５を経て通液管１３ｍを通シ
、活性炭濾過器１１に供給され、ここで該廃液中に含ま
れるスラジ及び粗粒ＳｌＯ□が除去された後、通液管１
３ｂを通ってシリカゲル吸着塔１２に供給され、ここで
浮遊物質（微粒５ｉｎ２）が吸着され、かくして精製さ
れた酸洗廃液が吸着塔１２から取出される。FIG. 2 shows an embodiment of the present invention, in which the pickling waste liquid is passed through a liquid feed pipe 13m through a liquid feed denzo 14 and a pulp 15, and is supplied to an activated carbon filter 11, where the waste liquid is After the contained sludge and coarse particles SlO□ are removed, the liquid passage pipe 1
3b to the silica gel adsorption tower 12, where suspended solids (fine particles 5 in2) are adsorbed, and the thus purified pickling waste liquid is taken out from the adsorption tower 12.
本発明を更に実施例にもとづいて説明する。The present invention will be further explained based on examples.
実施例１
一過器（充填層部；径０．６００ （ｍ） 、高さ０．
４３５（ｍ））に活性炭粒子を４０［相］）充填し、塩
酸酸洗廃液を炉遇した結果、下記第１表の結果が得られ
た。Example 1 Passer (packed bed part; diameter 0.600 (m), height 0.600 (m))
435 (m)) was filled with activated carbon particles (40 [phases]), and the hydrochloric acid pickling waste liquid was treated in the furnace, and the results shown in Table 1 below were obtained.
実施例２
第２表に示す組成の塩酸酸洗廃液を通液し、活性炭濾過
器にて浮遊物質（スラジ・粗粒ＳｔＯ□）を除去した後
、シリカゲル吸着塔にて、浮遊物質（微粒ｓｉｏ□）を
吸着すると第３表に示す如き成分のものとなシ、特にス
ラジとＳｌＯ□の含有量が激減することが判る。Example 2 A hydrochloric acid pickling waste solution having the composition shown in Table 2 was passed through the solution, and suspended solids (sludge and coarse particles of StO□) were removed using an activated carbon filter. It can be seen that when □) is adsorbed, the contents of the components shown in Table 3, especially sludge and SlO□, are drastically reduced.
第３表
（発明の効果）
前記実施例からも明らかな如く、本発明によれば鉄鋼の
塩酸酸洗廃液中のスラジ、 ＳｔＯ□等の浮遊物質を、
極めて簡単かつ容易に効率よく除去することができるの
で、産業上極めて有用である。Table 3 (Effects of the Invention) As is clear from the above examples, according to the present invention, suspended solids such as sludge and StO
It is extremely useful industrially because it can be removed very easily and efficiently.
第１図は本発明の実施に用いられる濾過もしくは吸着装
置の一例を示す説明図、第２図は本発明の実施の態様を
示す説明図である。
１・・・耐酸・耐圧容器（濾過器・吸着塔）、２・・・
パルプ、３・・・送液管、４・・・給液口、５・・・排
出管、６・・・パルプ、７・・・排液口、８ｍ、８ｂ・
・・炉材保持整流板、９ｍ、９ｂ・・・ストレーナ−１
１０・・・Ｆ材（活性炭・シリカゲル粒子）、１１・・
・耐酸・耐圧容器（濾過器）、１２・・・耐酸・耐圧容
器（吸着塔）、１３ｍ、１３ｂ・・・通液管、１４・・
・送液ポンプ、１５・・・ノ々ルブFIG. 1 is an explanatory diagram showing an example of a filtration or adsorption device used for implementing the present invention, and FIG. 2 is an explanatory diagram showing an embodiment of the present invention. 1... Acid-resistant/pressure-resistant container (filter/adsorption tower), 2...
Pulp, 3... Liquid feed pipe, 4... Liquid supply port, 5... Discharge pipe, 6... Pulp, 7... Liquid drain port, 8m, 8b.
・・Furnace material holding rectifier plate, 9m, 9b・・Strainer-1
10...F material (activated carbon/silica gel particles), 11...
・Acid-resistant/pressure-resistant container (filter), 12... Acid-resistant/pressure-resistant container (adsorption tower), 13m, 13b... Liquid passage pipe, 14...
・Liquid pump, 15...Nonolube
Claims (4)
過し、該廃液中に含まれるスラジ及び粗粒ＳｉＯ＿２を
除去することを特徴とする鉄鋼の塩酸酸洗廃液の精製方
法。(1) A method for purifying a waste liquid from hydrochloric acid pickling of steel, which comprises filtering the waste liquid from hydrochloric acid pickling of steel using an activated carbon filter to remove sludge and coarse SiO_2 contained in the waste liquid.
過し、該廃液中に含まれるスラジ及び粗粒ＳｉＯ＿２を
除去した後、シリカゲル粒子を充填した吸着塔を通液さ
せて微粒ＳｉＯ＿２を除去することを特徴とする鉄鋼の
塩酸酸洗廃液の精製方法。(2) After filtering the waste liquid from hydrochloric acid pickling of steel using an activated carbon filter to remove the sludge and coarse SiO_2 contained in the waste liquid, the liquid is passed through an adsorption tower filled with silica gel particles to form fine SiO_2 A method for purifying a waste liquid from hydrochloric acid pickling of steel, characterized by removing.
部と下部に夫々整流板とストレーナーを設けると共に、
該容器内に活性炭粒子を充填してなる活性炭ろ過器を用
いる特許請求の範囲第１項又は第２項記載の方法。(3) A rectifying plate and a strainer are installed at the upper and lower parts of the acid-proof and pressure-resistant container, which has a liquid supply port and a liquid drain port, respectively, and
3. The method according to claim 1 or 2, which uses an activated carbon filter in which the container is filled with activated carbon particles.
部と下部に夫々整流板とストレーナを設けると共に、該
容器内にシリカゲル粒子を充填してなるシリカゲル吸着
塔を用いる特許請求の範囲第２項記載の方法。(4) A claim that uses a silica gel adsorption tower in which a rectifying plate and a strainer are provided at the upper and lower parts of an acid-resistant/pressure-resistant container having a liquid supply port and a liquid drain port, respectively, and silica gel particles are filled in the container. The method described in Section 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26519884A JPS61146384A (en) | 1984-12-18 | 1984-12-18 | Purifying method of waste liquid of hydrochloric acid pickling of steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26519884A JPS61146384A (en) | 1984-12-18 | 1984-12-18 | Purifying method of waste liquid of hydrochloric acid pickling of steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61146384A true JPS61146384A (en) | 1986-07-04 |
| JPH0475075B2 JPH0475075B2 (en) | 1992-11-27 |
Family
ID=17413900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26519884A Granted JPS61146384A (en) | 1984-12-18 | 1984-12-18 | Purifying method of waste liquid of hydrochloric acid pickling of steel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61146384A (en) |
-
1984
- 1984-12-18 JP JP26519884A patent/JPS61146384A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0475075B2 (en) | 1992-11-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |