JPS62253735A - Production of binder - Google Patents
Production of binderInfo
- Publication number
- JPS62253735A JPS62253735A JP61097095A JP9709586A JPS62253735A JP S62253735 A JPS62253735 A JP S62253735A JP 61097095 A JP61097095 A JP 61097095A JP 9709586 A JP9709586 A JP 9709586A JP S62253735 A JPS62253735 A JP S62253735A
- Authority
- JP
- Japan
- Prior art keywords
- slag
- binder
- ferromanganese
- silicomanganese
- sintering
- 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
- 239000011230 binding agent Substances 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 239000002893 slag Substances 0.000 claims abstract description 54
- 239000000292 calcium oxide Substances 0.000 claims abstract description 16
- 238000005245 sintering Methods 0.000 claims abstract description 16
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 15
- 238000009628 steelmaking Methods 0.000 claims abstract description 15
- 229910000616 Ferromanganese Inorganic materials 0.000 claims abstract description 14
- 229910000720 Silicomanganese Inorganic materials 0.000 claims abstract description 14
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000004568 cement Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000011812 mixed powder Substances 0.000 claims description 4
- 239000002699 waste material Substances 0.000 claims description 4
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 3
- -1 and CaSO_4・2H_2O Substances 0.000 claims description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 239000011707 mineral Substances 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- 239000011435 rock Substances 0.000 claims description 3
- 239000011449 brick Substances 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 239000010883 coal ash Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 239000004576 sand Substances 0.000 claims description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 abstract description 26
- 235000012255 calcium oxide Nutrition 0.000 abstract description 13
- 239000000047 product Substances 0.000 abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 4
- 239000006227 byproduct Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 4
- 239000000843 powder Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 229910001021 Ferroalloy Inorganic materials 0.000 abstract description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 abstract description 2
- 239000000920 calcium hydroxide Substances 0.000 abstract description 2
- 235000011116 calcium hydroxide Nutrition 0.000 abstract description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 abstract description 2
- 229910052742 iron Inorganic materials 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 abstract description 2
- 235000011121 sodium hydroxide Nutrition 0.000 abstract description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 abstract 2
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 abstract 2
- 239000003795 chemical substances by application Substances 0.000 abstract 2
- 235000010216 calcium carbonate Nutrition 0.000 abstract 1
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract 1
- 235000017550 sodium carbonate Nutrition 0.000 abstract 1
- 229910000029 sodium carbonate Inorganic materials 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 239000000571 coke Substances 0.000 description 4
- 238000005469 granulation Methods 0.000 description 3
- 230000003179 granulation Effects 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229910000863 Ferronickel Inorganic materials 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000021 stimulant Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
-
- 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
- Manufacture And Refinement Of Metals (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は高炉に装入して用いる焼結鉱を製造する場合に
用いるバインダーに関するものである。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a binder used in producing sintered ore which is charged into a blast furnace.
〈従来の技術〉
現在行われている焼結法は、約１０ｍｍ以下の鉄鉱石粉
末に、コークスおよび適量の石灰石粉末とを混合し、焼
結パレットに装入後表層部のコークスに点火し、Ｆ方向
へ空気を吸引し乍らコークスを燃焼させ、その燃焼熱で
粉鉱石を焼結させる方法である。<Prior art> The sintering method currently in use is to mix iron ore powder of approximately 10 mm or less with coke and an appropriate amount of limestone powder, charge it into a sintering pallet, and then ignite the coke in the surface layer. This is a method in which coke is combusted while air is sucked in the F direction, and the fine ore is sintered with the combustion heat.
この様に、コークスの燃焼により焼結が進行する為に焼
結層への空気の供給度合を決定する焼結層の通気性の程
度は成業上の重要な要因となる。As described above, since sintering progresses through the combustion of coke, the degree of air permeability of the sintered layer, which determines the degree of air supply to the sintered layer, is an important factor in success.
この通気性を向上させる為に造粒条件の改善や造粒時間
の延長等種々の方策が講じられているが、用いるバイン
ダーも大きな要因である。従来からこの種の焼結に用い
られているバインダーは、生石灰や急結セメント成分で
ある。Various measures have been taken to improve this air permeability, such as improving granulation conditions and extending granulation time, but the binder used is also a major factor. Binders conventionally used in this type of sintering are quicklime and quick-setting cement components.
〈発明が解決しようとする問題点〉
上述した焼結用バインダーとして用いられている生石灰
や急結セメント成分は、効果はあるものの高価である為
にコスト高となる問題がある。<Problems to be Solved by the Invention> Although the quicklime and quick-setting cement components used as the sintering binder described above are effective, they are expensive, resulting in a problem of high costs.
本発明者は先に、安価な焼結用バインダーとして、製鋼
スラグを用いる発明をなし、特願昭６０−８４１４８号
として、又フェロニッケルスラグと製鋼スラグを用いる
発明をなし、特願昭６０−１４３０３９号として出願済
みであるが、フェロマンガン、シリコマンガンの製造工
程で発生するスラグ（水滓。The present inventor previously made an invention using steelmaking slag as an inexpensive binder for sintering, as published in Japanese Patent Application No. 84148/1983, and also made an invention using ferronickel slag and steelmaking slag, The application has been filed as No. 143039, but the slag (water slag) generated in the manufacturing process of ferromanganese and silicomanganese.
徐冷がある）の有効利用方法は少なく、はとんど埋立廃
棄処分されている。There are few effective ways to use this material (including slow cooling), and most of it is disposed of in landfills.
〈問題点を解決する為の手段〉
本発明は従来から焼結用バインダーとして使用されてい
る生石灰や急結セメントに替え、安価なフェロマンガン
スラグ、シリコマンガンスラグを用いようとするもので
あり、その要旨はフェロマンガンスラグおよび／または
シリコマンガンスラグと、溶融状態から急冷処理した製
鋼スラグと、ＣａＳＯ４−２１１２０＋ Ｃａｂ、Ｃａ
（０１１）ｔ＋ ＣａＣ１ｚ ＋ Ｎａ０Ｉ１． Ｎ
ａｚＣＯｓの少なくとも１種以上から成る刺激剤との混
合粉末から成る焼結用バインダーの製造方法であり、こ
の場合に用いる製鋼スラグを溶融状態にある間に珪酸塩
質の岩石あるいは鉱物又はその風化物、カラミ、ガラス
クズ、鋳物廃砂２石炭灰、廃レンガ。<Means for Solving the Problems> The present invention aims to use inexpensive ferromanganese slag and silicomanganese slag in place of quicklime and quick setting cement that have been conventionally used as sintering binders. The gist is ferromanganese slag and/or silicomanganese slag, steelmaking slag that has been rapidly cooled from a molten state, CaSO4-21120+ Cab, Ca
(011)t+ CaC1z + Na0I1. N
This is a method for producing a sintering binder consisting of a mixed powder with a stimulant consisting of at least one kind of azCOs, in which silicate rocks or minerals or weathered products thereof are added to the steelmaking slag used in this case while it is in a molten state. , karami, glass scraps, foundry waste sand 2 coal ash, waste bricks.
赤泥、火山噴出物、高炉スラグ、脱珪スラグ、酸化鉄の
少なくとも１種以上から成る改質材を添加し溶融反応を
させた後に急冷した生成物の形態で用いる事もあり、更
には製鋼スラグに替えセメントを用いる事もある。It is sometimes used in the form of a product obtained by adding a modifying material consisting of at least one of red mud, volcanic ejecta, blast furnace slag, desiliconization slag, and iron oxide, causing a melting reaction, and then rapidly cooling it. Cement may be used instead of slag.
この様に溶融状態の製鋼スラグに対し、珪酸塩質の岩石
等の改質材を添加するのは、製鋼スラグの鉱物組成を、
α′〜β−２ＣａＯ・５ｉｆｔ主体から、２ＣａＯ・５
ｉＯｔ〜２ＣａＯ・Ｍｇ０・２ＳｉＯｚ主体となし崩壊
膨張性を無くすと共に、融点、粘性を低下させる事によ
りその取扱を便ならしめ、かつ急冷した場合の急冷率を
向上させガラス質を多くせんとする為であり、その添加
方法は別に限定される事なく、作業工程あるいは作業現
場の状況に応じ適宜の方法を採用する。Adding modifying materials such as silicate rocks to molten steelmaking slag in this way improves the mineral composition of steelmaking slag.
From α′ to β-2CaO・5ift, 2CaO・5
Mainly composed of iOt~2CaO・Mg0・2SiOz to eliminate collapse-expansion properties, reduce melting point and viscosity to make handling easier, and increase vitreous content by improving quenching rate when quenching. The method of addition is not particularly limited, and an appropriate method is adopted depending on the work process or the situation at the work site.
〈実施例および作用〉 以下実施例を示し乍ら、本発明を詳述する。<Examples and effects> The present invention will be described in detail below with reference to Examples.
この実施例に用いた試料の化学分析値等を下記第１表に
示す。Chemical analysis values of the samples used in this example are shown in Table 1 below.
なお、生石灰、消石灰、 ＮａＯＨ，ＮａｇＣＯｓ、Ｃ
ａＣ１ｔ等は試薬−級を、セメントは市販ポルトランド
セメントを使用した。In addition, quicklime, slaked lime, NaOH, NagCOs, C
Reagent-grade aC1t and the like were used, and commercially available Portland cement was used as the cement.
上記第１表中改質還元期スラグおよび改質転炉スラグと
いうのは、それぞれ還元期スラグおよび転炉スラグに対
し、上述の改質材を約１０重量％添加したスラグの事で
ある。The reformed reduction stage slag and reformed converter slag in Table 1 above are slags in which about 10% by weight of the above-mentioned reforming material is added to the reduction stage slag and converter slag, respectively.
フェロマンガンスラグ、シリコマンガンスラグ。Ferromanganese lag, silicomanganese lag.
製鋼水滓、刺激剤（Ｃａｂ、 Ｃａ（Ｏｉｌ）ｇ）を添
加後、試験ボールミルでブレーン値３１００±５０ｃｄ
／ｇに粉砕、又はフェロマンガンスラグ、シリコマンガ
ンスラグ、刺激剤（Ｃａｂ、 Ｃａ（ＯＨ）＊）を添加
後、試験ボールミルでブレーン値３１００±５０ｃ＋Ｊ
／ｇに粉砕後、市販ポルトランドセメントを添加混合あ
るいは刺激剤の中のＣａＯ＋ Ｃａ（ＯＨ）ｚ以外のＮ
ａＯＨ，ＣａＣ１ｘ＋ＮａｚＣＯ３等を添加する場合は
練り水に溶解して使用し、水に加えて混練しビニール袋
に入れて硬化状況を調べ、第２表に示す。After adding steelmaking water slag and stimulants (Cab, Ca(Oil)g), the Blaine value was 3100±50cd in a test ball mill.
/g, or after adding ferromanganese slag, silicomanganese slag, and stimulant (Cab, Ca(OH)*), the Blaine value was 3100±50c+J in a test ball mill.
/g, then add and mix commercially available Portland cement or add N other than CaO+ Ca(OH)z in the stimulant.
When aOH, CaC1x+NazCO3, etc. are added, they are used after being dissolved in kneading water, added to water, kneaded, placed in a plastic bag, and checked for hardening status, as shown in Table 2.
×は約６０〜１８０分後に膨張崩壊、Ｏは硬化している
状況を示す。以上の如く、フェロマンガンスラグやシリ
コマンガンスラグに石灰を１０〜２０％添加し、水を加
えて混練しても硬化は遅いが製鋼水滓粉砕物又はセメン
トを添加瞳かつ石灰を２０％以上、又はＣａＣ１ｔ＋Ｎ
ａＯＨ，Ｎａ１ＣＯ＠、石膏等を２〜５％程添加し、水
を加えて混練すると急結性となり、約８〜１３分程で硬
化する。× indicates expansion and collapse after about 60 to 180 minutes, and O indicates hardening. As mentioned above, even if 10 to 20% of lime is added to ferromanganese slag or silicomanganese slag, and water is added and kneaded, hardening is slow, but if pulverized steelmaking water slag or cement is added and lime is added to 20% or more, or CaC1t+N
When about 2 to 5% of aOH, Na1CO@, gypsum, etc. are added, water is added and kneaded, it becomes rapidly set and hardens in about 8 to 13 minutes.
しかし、急激に発熱し、混練水は飛散し、膨張して約６
０〜１８０分後には崩壊するが、焼結原料の配合材料に
１％添加して、造粒水分６％で造粒すると生石灰１％添
加して造粒した場合のＧｌ■８４．１％と同程度を示す
。However, due to the sudden heat generation, the kneading water scatters and expands to about 6.
Although it collapses after 0 to 180 minutes, when it is added to the sintering raw material mixture at 1% and granulated with a granulation moisture of 6%, when granulated with 1% quicklime added, Gl is 84.1%. Shows the same degree.
次に第３表に示す様な配合割合および条件で、本発明の
バインダーを用いて焼結した結果を第４表にしめす、な
おこの第４表中「試験Ｎｏ、 Ｊは上記第２表に示す試
験Ｎｏ、と同じである。Next, Table 4 shows the results of sintering using the binder of the present invention using the blending ratio and conditions shown in Table 3. It is the same as the test No. shown.
比較の為に従来例として生石灰をバインダーとした場合
およびバインダーなしの場合の結果をも第４表中に併記
した。なお、バインダーの量は本発明の場合も従来例の
場合も共に１重量％とじた。For comparison, Table 4 also shows the results when quicklime was used as a binder and when no binder was used as a conventional example. The amount of binder was 1% by weight in both the present invention and the conventional example.
第３表
第４表
上記第４表から明らかな様に、本発明のバインダーを用
いた焼結製品は、その生産性１歩留および強度のいずれ
に於いてもバインダーなしの場合よりも優れており、生
石灰を用いた場合と比べて何ら遜色のない事が判る。Table 3 Table 4 As is clear from Table 4 above, the sintered products using the binder of the present invention are superior to those without the binder in both productivity, yield, and strength. It can be seen that there is no inferiority compared to the case of using quicklime.
〈発明の効果〉
以上述べてきた如く、本説明によれば安価なフェロマン
ガンスラグ、シリコマンガンスラグに製鋼水滓やセメン
トと少量の刺激剤を使用することで、高価な生石灰や急
結セメントに替わる焼結用バインダーとする事が出来る
ものであり、その場合の焼結製品への効果は従来の高価
な生石灰と同等である。更に製鉄業の副産物である高炉
スラグや製鋼スラグのリサイクル、更には合金鉄メーカ
ーの副産物であるフェロマンガンスラグ、シリコマンガ
ンスラグという点からもを益である。<Effects of the Invention> As described above, according to this explanation, by using inexpensive ferromanganese slag, silicomanganese slag, steelmaking water slag, cement, and a small amount of stimulant, expensive quicklime and quick-setting cement can be used. It can be used as an alternative binder for sintering, and the effect on sintered products in that case is equivalent to that of conventional expensive quicklime. There are also benefits from the recycling of blast furnace slag and steelmaking slag, which are byproducts of the steel industry, as well as ferromanganese slag and silicomanganese slag, which are byproducts of ferroalloy manufacturers.
Claims (3)
ガンスラグと、溶融状態から急冷処理した製鋼スラグと
、ＣａＳＯ＿４・２Ｈ＿２Ｏ、ＣａＯ、Ｃａ（ＯＨ）＿
２、ＣａＣｌ＿２、ＮａＯＨ、Ｎａ＿２ＣＯ＿３の少な
くとも１種以上から成る刺激剤との混合粉末から成る焼
結用バインダーの製造方法。(1) Ferromanganese slag and/or silicomanganese slag, steelmaking slag that has been rapidly cooled from a molten state, CaSO_4・2H_2O, CaO, Ca(OH)_
2. A method for producing a sintering binder comprising a mixed powder with a stimulant consisting of at least one of CaCl_2, NaOH, and Na_2CO_3.
ガンスラグと、溶融状態の製鋼スラグに珪酸塩質の岩石
あるいは鉱物又はその風化物、カラミ、ガラスクズ、鋳
物廃砂、石炭灰、廃レンガ、赤泥、火山噴出物、高炉ス
ラグ、脱珪スラグ、酸化鉄の少なくとも１種以上から成
る改質材を添加し、溶融反応をさせた後急冷して得られ
た生成物と、ＣａＳＯ＿４・２Ｈ＿２Ｏ、ＣａＯ、Ｃａ
（ＯＨ）＿２、ＣａＣｌ＿２、ＮａＯＨ、Ｎａ＿２ＣＯ
＿３の少なくとも１種以上から成る刺激剤との混合粉末
から成る焼結用バインダーの製造方法。(2) Ferromanganese slag and/or silicomanganese slag, molten steelmaking slag, silicate rocks or minerals, or their weathered products, karami, glass scraps, foundry waste sand, coal ash, waste bricks, red mud, volcanoes. A product obtained by adding a modifying material consisting of at least one of ejecta, blast furnace slag, desiliconization slag, and iron oxide, causing a melting reaction, and then quenching, CaSO_4・2H_2O, CaO, Ca
(OH)_2, CaCl_2, NaOH, Na_2CO
A method for producing a sintering binder comprising a mixed powder with a stimulant comprising at least one of _3.
ガンスラグと、セメントと、ＣａＳＯ＿４・２Ｈ＿２Ｏ
、ＣａＯ、Ｃａ（ＯＨ）＿２、ＣａＣｌ＿２、ＮａＯＨ
、Ｎａ＿２ＣＯ＿３の少なくとも１種以上から成る刺激
剤との混合粉末から成る焼結用バインダーの製造方法。(3) Ferromanganese slag and/or silicomanganese slag, cement, and CaSO_4・2H_2O
, CaO, Ca(OH)_2, CaCl_2, NaOH
A method for producing a sintering binder comprising a mixed powder with a stimulant consisting of at least one of Na_2CO_3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61097095A JPS62253735A (en) | 1986-04-25 | 1986-04-25 | Production of binder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61097095A JPS62253735A (en) | 1986-04-25 | 1986-04-25 | Production of binder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62253735A true JPS62253735A (en) | 1987-11-05 |
Family
ID=14183073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61097095A Pending JPS62253735A (en) | 1986-04-25 | 1986-04-25 | Production of binder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62253735A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101008095B1 (en) | 2008-02-20 | 2011-01-13 | 주식회사 포스코 | Binder manufacturing method using stainless electric furnace slag and binder containing electric furnace slag |
| KR101419456B1 (en) * | 2012-07-12 | 2014-07-17 | (주)보정스틸 | Binder and manufacturing method thereof |
| CN111960703A (en) * | 2020-08-24 | 2020-11-20 | 武汉武新新型建材股份有限公司 | Preparation process of modified steel slag micro powder, and modified steel slag micro powder and concrete prepared by preparation process |
-
1986
- 1986-04-25 JP JP61097095A patent/JPS62253735A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101008095B1 (en) | 2008-02-20 | 2011-01-13 | 주식회사 포스코 | Binder manufacturing method using stainless electric furnace slag and binder containing electric furnace slag |
| KR101419456B1 (en) * | 2012-07-12 | 2014-07-17 | (주)보정스틸 | Binder and manufacturing method thereof |
| CN111960703A (en) * | 2020-08-24 | 2020-11-20 | 武汉武新新型建材股份有限公司 | Preparation process of modified steel slag micro powder, and modified steel slag micro powder and concrete prepared by preparation process |
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