JPS636273B2 - - Google Patents
Info
- Publication number
- JPS636273B2 JPS636273B2 JP53149243A JP14924378A JPS636273B2 JP S636273 B2 JPS636273 B2 JP S636273B2 JP 53149243 A JP53149243 A JP 53149243A JP 14924378 A JP14924378 A JP 14924378A JP S636273 B2 JPS636273 B2 JP S636273B2
- Authority
- JP
- Japan
- Prior art keywords
- blast furnace
- furnace slag
- grinding
- added
- triethanolamine
- 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
- 239000002893 slag Substances 0.000 claims description 47
- 238000000227 grinding Methods 0.000 claims description 22
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 15
- 239000002253 acid Substances 0.000 claims description 9
- 150000003839 salts Chemical class 0.000 claims description 7
- AEQDJSLRWYMAQI-UHFFFAOYSA-N 2,3,9,10-tetramethoxy-6,8,13,13a-tetrahydro-5H-isoquinolino[2,1-b]isoquinoline Chemical group C1CN2CC(C(=C(OC)C=C3)OC)=C3CC2C2=C1C=C(OC)C(OC)=C2 AEQDJSLRWYMAQI-UHFFFAOYSA-N 0.000 claims description 6
- 239000000176 sodium gluconate Substances 0.000 claims description 6
- 229940005574 sodium gluconate Drugs 0.000 claims description 6
- 235000012207 sodium gluconate Nutrition 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 229910001018 Cast iron Inorganic materials 0.000 description 7
- 239000004568 cement Substances 0.000 description 7
- 150000004683 dihydrates Chemical class 0.000 description 7
- 229910052602 gypsum Inorganic materials 0.000 description 7
- 239000010440 gypsum Substances 0.000 description 7
- 239000007864 aqueous solution Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 239000004570 mortar (masonry) Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000010298 pulverizing process Methods 0.000 description 4
- QGJDXUIYIUGQGO-UHFFFAOYSA-N 1-[2-[(2-methylpropan-2-yl)oxycarbonylamino]propanoyl]pyrrolidine-2-carboxylic acid Chemical compound CC(C)(C)OC(=O)NC(C)C(=O)N1CCCC1C(O)=O QGJDXUIYIUGQGO-UHFFFAOYSA-N 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- RGHNJXZEOKUKBD-SQOUGZDYSA-N D-gluconic acid Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O RGHNJXZEOKUKBD-SQOUGZDYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- -1 alkali metal salts Chemical class 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 159000000000 sodium salts Chemical class 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- RGHNJXZEOKUKBD-UHFFFAOYSA-N D-gluconic acid Natural products OCC(O)C(O)C(O)C(O)C(O)=O RGHNJXZEOKUKBD-UHFFFAOYSA-N 0.000 description 1
- QXKAIJAYHKCRRA-UHFFFAOYSA-N D-lyxonic acid Natural products OCC(O)C(O)C(O)C(O)=O QXKAIJAYHKCRRA-UHFFFAOYSA-N 0.000 description 1
- QXKAIJAYHKCRRA-FLRLBIABSA-N D-xylonic acid Chemical compound OC[C@@H](O)[C@H](O)[C@@H](O)C(O)=O QXKAIJAYHKCRRA-FLRLBIABSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000174 gluconic acid Substances 0.000 description 1
- 235000012208 gluconic acid Nutrition 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 159000000003 magnesium salts Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- WSHYKIAQCMIPTB-UHFFFAOYSA-M potassium;2-oxo-3-(3-oxo-1-phenylbutyl)chromen-4-olate Chemical compound [K+].[O-]C=1C2=CC=CC=C2OC(=O)C=1C(CC(=O)C)C1=CC=CC=C1 WSHYKIAQCMIPTB-UHFFFAOYSA-M 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009291 secondary effect Effects 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
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Landscapes
- Disintegrating Or Milling (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
この発明は、高炉スラグの粉砕に際して用いら
れる粉砕助剤に関するものであり、さらに詳しく
はトリエタノールアミンおよびアルドン酸を含有
する高炉スラグの粉砕助剤に関するものである。
近年、セメントの需要の著しい増加と産業廃棄
物の処理の問題がからみ、製鉄副産物である高炉
スラグをポルトランドセメントクリンカーに混合
したセメントの需要が高まつて来ている。
高炉スラグは潜在水硬性を有する素材である
が、セメント用原料として有効に利用するために
は、微粉砕して表面積を大きくする必要がある。
しかし高炉スラグはほとんど完全なガラス質の組
織を有しており、粉砕強度が大きいため、この粉
砕化には多大のエネルギーを必要とし、有効な粉
砕助剤の開発が望まれていた。
従来、高炉スラグの粉砕に当たり有効な粉砕助
剤としては、わずかにジエチレングリコールが知
られているのみであるが、その粉砕効果は低く、
ほとんど実用に共されていないのが現状である。
この発明の発明者らは、高炉スラグの粉砕に当
たり、その粉砕効率を高める物質を得る目的で、
種々研究した結果、トリエタノールアミンに加え
てアルドン酸またはその塩類を併用することによ
り、優れた粉砕助剤としての効果が得られること
を見出し、この発明を完成した。
ここで、高炉スラグとは、溶鉱炉から出る溶融
スラグを急冷して得られる砂状物を意味してお
り、その代表例としては、水により急冷した高炉
水砕スラグが挙げられるが、急冷手段としては水
のみでなく、例えば空気等により急冷したものも
含まれる。
この発明でトリエタノールアミンに加えて用い
られるアルドン酸としては、例えばキシロン酸、
グルコン酸、グルコヘプトン酸などが挙げられ
る。そしてアルドン酸の塩類としては、ナトリウ
ム塩、カリウム塩等のアルカリ金属塩、カルシウ
ム塩、マグネシウム塩等のアルカリ土類金属塩な
どが例示され、好ましい例としてはナトリウム塩
が挙げられる。
この発明の粉砕助剤は高炉スラグの粉砕前ある
いは粉砕途中で適宜添加して利用される。
トリエタノールアミンの添加割合は高炉スラグ
に対し、通常0.001〜0.5w／ｗ％、好ましくは
0.01〜0.3w／ｗ％であり、またアルドン酸または
その塩類の添加割合は高炉スラグに対して通常
0.001〜0.5w／ｗ％、好ましくは0.01〜0.2w／ｗ
％である。
上記粉砕助剤、すなわち、トリエタノールアミ
ンおよびアルドン酸またはその塩類の添加割合
は、使用する高炉スラグの粒度、性質等により適
宜選択され、上記の割合に限定されるものではな
い。
このように、この発明の粉砕助剤の添加割合は
高炉スラグに対し、極少量であるので、それらの
効果を充分に発揮させるためには、これらの粉砕
助剤を高炉スラグ中に均一に分散させるのが望ま
しく、そのためには、例えばこれらの粉砕助剤を
水溶液として添加するのが望ましい。
なお、この発明を実施するに際してトリエタノ
ールアミンおよびアルドン酸またはその塩類のほ
かに、所望により他の粉砕助剤を適宜併用添加し
てもよい。
この発明の粉砕助剤を用いて高炉スラグを粉砕
する場合には、高炉スラグの粉砕効率がより著し
く改善されるばかりでなく、得られる高炉スラグ
を混合したセメントを用いて製造されるコンクリ
ートのワーカビリテイーを向上させ、その強度を
増強させるという副次的効果をも有する。
そのため、高炉スラグを混合したセメントを製
造するに当たり、高炉スラグの配合率を高めて
も、得られるセメントを用いて製造されるコンク
リートのワーカビリテイーあるいは強度を低下さ
せないという利点をも有する。
次にこの発明を実施例により説明するととも
に、その効果を試験例により説明する。
試験例 １
100〜105℃で24時間乾燥した新日本製鉄株式会
社製高炉水砕スラグをよく混合し、縮分器で５Kg
ずつ配分しそれぞれに室温で48時間乾燥した２水
石こう（CaSO4・2H2O）を高炉水砕スラグに対
し、全SO3量として2.3％の割合で添加した。
この混合物に表１に示したごとき割合で水に溶
解させたトリエタノールアミン、グルコン酸ナト
リウムまたはトリエタノールアミンとグルコン酸
ナトリウムの混合物を添加した。直径0.43ｍ、長
さ0.475ｍ、容積0.069m3、回転数43r.p.m.のミル
に直径51mmの鋳鉄ボール16.7Kg、直径31mmの鋳鉄
ボール16.7Kg、直径25mmの鋳鉄ボール13.3Kgおよ
び直径16mm、長さ22mmの鋳鉄シルベツブ3.3Kg
（合計50.5Kg）を加えた試験ボールミルを用いて
粉砕した。粉砕開始後30、60、90、120、150分経
過時にそれぞれサンプリングしてJIS法（JIS
R5201）により試料のブレーン値を求め“ブレー
ン値−粉砕時間”曲線からブレーン値が4200cm2／
ｇに達するまでの粉砕所要時間を求めて得た粉砕
効率（粉砕時間短縮率）を次の表１に示す。
The present invention relates to a grinding aid used in grinding blast furnace slag, and more particularly to a grinding aid for blast furnace slag containing triethanolamine and aldonic acid. In recent years, due to the significant increase in demand for cement and the problem of industrial waste disposal, there has been an increase in demand for cement made by mixing blast furnace slag, a byproduct of iron manufacturing, with Portland cement clinker. Blast furnace slag is a material with latent hydraulic properties, but in order to effectively use it as a raw material for cement, it must be pulverized to increase its surface area.
However, since blast furnace slag has an almost completely glassy structure and has a high crushing strength, a large amount of energy is required for this crushing, and the development of an effective crushing aid has been desired. Until now, only diethylene glycol has been known as a grinding aid that is effective in grinding blast furnace slag, but its grinding effect is low;
At present, it is hardly put into practical use. The inventors of this invention aimed to obtain a substance that increases the pulverization efficiency when pulverizing blast furnace slag.
As a result of various studies, it was discovered that the combined use of aldonic acid or its salts in addition to triethanolamine provides an excellent effect as a grinding aid, and the present invention was completed. Here, blast furnace slag refers to a sandy substance obtained by rapidly cooling molten slag discharged from a blast furnace, and a representative example thereof is granulated blast furnace slag that is rapidly cooled with water. includes not only water but also those rapidly cooled with air, etc. Examples of aldonic acids used in this invention in addition to triethanolamine include xylonic acid,
Examples include gluconic acid and glucoheptonic acid. Examples of the aldonic acid salts include alkali metal salts such as sodium salts and potassium salts, alkaline earth metal salts such as calcium salts and magnesium salts, and preferred examples include sodium salts. The grinding aid of the present invention is used by being appropriately added before or during grinding of blast furnace slag. The addition ratio of triethanolamine is usually 0.001 to 0.5 w/w%, preferably 0.001 to 0.5 w/w% to blast furnace slag
0.01 to 0.3 w/w%, and the addition ratio of aldonic acid or its salts to blast furnace slag is usually
0.001~0.5w/w%, preferably 0.01~0.2w/w
%. The addition ratio of the above-mentioned grinding aids, that is, triethanolamine and aldonic acid or its salts, is appropriately selected depending on the particle size, properties, etc. of the blast furnace slag used, and is not limited to the above ratio. As described above, since the grinding aids of this invention are added in a very small amount to the blast furnace slag, in order to fully exhibit their effects, these grinding aids must be uniformly dispersed in the blast furnace slag. For this purpose, for example, it is desirable to add these grinding aids as an aqueous solution. In addition, when carrying out this invention, other grinding aids may be appropriately added in combination with triethanolamine and aldonic acid or its salts, if desired. When blast furnace slag is crushed using the crushing aid of the present invention, not only the blast furnace slag crushing efficiency is significantly improved, but also the concrete worker is manufactured using cement mixed with the obtained blast furnace slag. It also has the secondary effect of improving its strength and increasing its strength. Therefore, when producing cement mixed with blast furnace slag, there is an advantage that even if the blending ratio of blast furnace slag is increased, the workability or strength of concrete produced using the obtained cement will not be reduced. Next, the present invention will be explained by examples, and its effects will be explained by test examples. Test example 1 Granulated blast furnace slag manufactured by Nippon Steel Corporation, dried at 100 to 105℃ for 24 hours, was mixed well, and 5 kg was mixed in a condenser.
Dihydrate gypsum (CaSO 4 .2H 2 O), which was divided into portions and dried at room temperature for 48 hours, was added to the granulated blast furnace slag at a ratio of 2.3% as a total amount of SO 3 . To this mixture was added triethanolamine, sodium gluconate, or a mixture of triethanolamine and sodium gluconate dissolved in water in the proportions shown in Table 1. A mill with a diameter of 0.43 m, a length of 0.475 m, a volume of 0.069 m 3 , and a rotation speed of 43 rpm has a cast iron ball of 51 mm in diameter, 16.7 kg, a cast iron ball of 31 mm in diameter, 16.7 kg, a cast iron ball of 25 mm in diameter, 13.3 kg, and a diameter of 16 mm in length. 22mm diameter cast iron sill tube 3.3Kg
(Total 50.5Kg) was ground using a test ball mill. Samples were taken at 30, 60, 90, 120, and 150 minutes after the start of crushing, and the JIS method (JIS
Calculate the Blaine value of the sample using R5201) and find the Blaine value of 4200cm 2 /
The grinding efficiency (grinding time reduction rate) obtained by determining the time required for grinding to reach g is shown in Table 1 below.
【表】
試験例 ２
この発明の方法で製造された高炉水砕スラグ粉
末をポルトランドセメントに種々の割合で混合し
たセメントを用いて常法によりモルタルを調製し
た。モルタルの調製後、凝結時間、フロー値、
３、７、28日後の圧縮強度を測定した結果を表２
に示す。[Table] Test Example 2 Mortar was prepared by a conventional method using cement in which granulated blast furnace slag powder produced by the method of the present invention was mixed with Portland cement in various proportions. After preparation of mortar, setting time, flow value,
Table 2 shows the results of compressive strength measurements after 3, 7, and 28 days.
Shown below.
【表】
＊２） 凝結時間のらん中 始発はモルタル調製後モ
ルタルの凝結が始まる時間（時：分）を示し、
終結はモルタルの凝結が完了する時間（時：分
）を示す。
試験例 ３
100〜105℃で24時間乾燥した新日本製鉄株式会
社製高炉水砕スラグをよく混合し、縮分器で５Kg
ずつ配分しそれぞれに室温で48時間乾燥した２水
石こう（CaSO4・2H2O）を高炉水砕スラグに対
し、全SO3量として2.3％の割合で添加した。
この混合物に表３に示したごとき割合で水に溶
解させたトリエタノールアミンとグルコヘプトン
酸ナトリウムの混合物を添加した。直径0.45ｍ、
容積0.072m3、回転数40r.p.m.のミルに直径31mmの
鋳鉄ボール30Kg、直径21mmの鋳鉄ボール30Kgおよ
び直径16mm、長さ22mmの鋳鉄シルペツプ10Kg（合
計70Kg）を加えた試験ボールミルを用いて粉砕し
た。粉砕開始後80、110、140、170分経過時にそ
れぞれサンプリングしてJIS法（JIS R5201）に
より試料ブレーン値を求め“ブレーン値−粉砕時
間”曲線からブレーン値が4200cm2／ｇに達するま
での粉砕所要時間を求めて得た粉砕効率（粉砕時
間短縮率）を次の表３に示す。[Table] *2) During setting time The start time indicates the time (hours: minutes) when mortar starts setting after mortar preparation.
Termination indicates the time (hours: minutes) at which setting of the mortar is complete.
Test Example 3 Granulated blast furnace slag manufactured by Nippon Steel Corporation, dried at 100 to 105°C for 24 hours, was mixed well and 5 kg was collected using a condenser.
Dihydrate gypsum (CaSO 4 .2H 2 O), which was divided into portions and dried at room temperature for 48 hours, was added to the granulated blast furnace slag at a ratio of 2.3% as a total amount of SO 3 . To this mixture was added a mixture of triethanolamine and sodium glucoheptonate dissolved in water in the proportions shown in Table 3. Diameter 0.45m,
Grinding was performed using a test ball mill with a volume of 0.072 m 3 and a rotation speed of 40 r.pm to which 30 kg of cast iron balls with a diameter of 31 mm, 30 kg of cast iron balls with a diameter of 21 mm, and 10 kg of cast iron sill pep with a diameter of 16 mm and a length of 22 mm (70 kg in total) were added. did. Samples are taken at 80, 110, 140, and 170 minutes after the start of crushing, and the Blaine value of the sample is determined using the JIS method (JIS R5201). From the "Blaine value - Grinding time" curve, grinding is carried out until the Blaine value reaches 4200 cm 2 /g. The pulverization efficiency (pulverization time reduction rate) obtained by determining the required time is shown in Table 3 below.
【表】
実施例 １
100〜105℃で24時間乾燥した高炉水砕スラグに
２水石こう（SO3含量45％）を高炉水砕スラグに
対し5.2％およびトリエタノールアミン8.82％、
グルコン酸ナトリウム8.82％、水82.36％からな
る水溶液を高炉水砕スラグに対し0.34％の割合で
粉砕開始直前に添加し、ブレーン値が4240cm2／ｇ
に達するまで粉砕した。
実施例 ２
100〜105℃で24時間乾燥した高炉水砕スラグに
２水石こう（SO3含量45％）を高炉水砕スラグに
対し5.2％およびトリエタノールアミン15％、グ
ルコン酸ナトリウム15％、水70％からなる水溶液
を高炉スラグに対し0.4％の割合で粉砕開始直前
に添加し、ブレーン値が4540cm2／ｇに達するまで
粉砕した。
実施例 ３
100〜105℃で24時間乾燥した高炉水砕スラグに
２水石こう（SO3含量45％）を高炉水砕スラグに
対し5.2％およびトリエタノールアミン23.1％、
グルコン酸ナトリウム23.1％、水53.8％からなる
水溶液を高炉水砕スラグに対し0.52％の割合で粉
砕開始直前に添加し、ブレーン値が4460cm2／ｇに
達するまで粉砕した。
実施例 ４
100〜105℃で24時間乾燥した高炉水砕スラグに
２水石こう（SO3含量45％）を高炉水砕スラグに
対し5.2％およびトリエタノールアミン５％、グ
ルコヘプトン酸ナトリウム５％、水90％からなる
水溶液を高炉水砕スラグに対し0.4％の割合で粉
砕開始直前に添加し、ブレーン値が4380cm2／ｇに
達するまで粉砕した。
実施例 ５
100〜105℃で24時間乾燥した高炉水砕スラグに
２水石こう（SO3含量45％）を高炉水砕スラグに
対し5.2％およびトリエタノールアミン15％、グ
ルコヘプトン酸ナトリウム15％、水70％からなる
水溶液を高炉スラグに対し0.4％の割合で粉砕開
始直前に添加し、ブレーン値が4410cm2／ｇに達す
るまで粉砕した。[Table] Example 1 Dihydrate gypsum (SO 3 content 45%) was added to granulated blast furnace slag dried at 100 to 105°C for 24 hours at 5.2% and triethanolamine 8.82% based on the granulated blast furnace slag.
An aqueous solution consisting of 8.82% sodium gluconate and 82.36% water was added to the granulated blast furnace slag at a ratio of 0.34% just before the start of crushing, and the Blaine value was 4240 cm 2 /g.
It was crushed until it reached . Example 2 To granulated blast furnace slag dried at 100 to 105°C for 24 hours, dihydrate gypsum (SO 3 content 45%) was added at 5.2% to granulated blast furnace slag, triethanolamine 15%, sodium gluconate 15%, and water. An aqueous solution consisting of 70% of the blast furnace slag was added at a ratio of 0.4% to the blast furnace slag immediately before the start of crushing, and the blast furnace slag was crushed until the Blaine value reached 4540 cm 2 /g. Example 3 Dihydrate gypsum (SO 3 content 45%) was added to granulated blast furnace slag dried at 100 to 105°C for 24 hours, and 5.2% and triethanolamine 23.1% were added to the granulated blast furnace slag.
An aqueous solution consisting of 23.1% sodium gluconate and 53.8% water was added at a ratio of 0.52% to the granulated blast furnace slag just before the start of crushing, and the mixture was crushed until the Blaine value reached 4460 cm 2 /g. Example 4 To granulated blast furnace slag dried at 100 to 105°C for 24 hours, dihydrate gypsum (SO 3 content 45%) was added at 5.2% to the granulated blast furnace slag, triethanolamine 5%, sodium glucoheptonate 5%, and water. An aqueous solution consisting of 90% was added at a ratio of 0.4% to the granulated blast furnace slag immediately before the start of crushing, and the blast furnace slag was crushed until the Blaine value reached 4380 cm 2 /g. Example 5 Granulated blast furnace slag dried at 100 to 105°C for 24 hours was mixed with dihydrate gypsum (SO 3 content 45%) at 5.2% based on the granulated blast furnace slag, triethanolamine 15%, sodium glucoheptonate 15%, and water. An aqueous solution consisting of 70% of the blast furnace slag was added at a ratio of 0.4% to the blast furnace slag immediately before the start of crushing, and the blast furnace slag was crushed until the Blaine value reached 4410 cm 2 /g.
Claims (1)
はその塩類を含有することを特徴とする高炉スラ
グの粉砕助剤。 ２ アルドン酸またはその塩類がグルコン酸ナト
リウムである特許請求の範囲第１項記載の粉砕助
剤。[Claims] 1. A grinding aid for blast furnace slag, characterized by containing triethanolamine and aldonic acid or its salts. 2. The grinding aid according to claim 1, wherein the aldonic acid or its salt is sodium gluconate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14924378A JPS5575747A (en) | 1978-11-30 | 1978-11-30 | Method of grinding blast furnace slag and grinding assistant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14924378A JPS5575747A (en) | 1978-11-30 | 1978-11-30 | Method of grinding blast furnace slag and grinding assistant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5575747A JPS5575747A (en) | 1980-06-07 |
| JPS636273B2 true JPS636273B2 (en) | 1988-02-09 |
Family
ID=15471002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14924378A Granted JPS5575747A (en) | 1978-11-30 | 1978-11-30 | Method of grinding blast furnace slag and grinding assistant |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5575747A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ZA817153B (en) * | 1980-12-19 | 1982-09-29 | Grace W R & Co | Grinding aid for granular blast furnace slag |
| US4386963A (en) * | 1981-09-21 | 1983-06-07 | W. R. Grace & Co. | Grinding aids for granular blast furnace slag |
| JPS5978962A (en) * | 1982-10-28 | 1984-05-08 | ハリマ化成株式会社 | Blast furnace slag granulation |
| ATE548341T1 (en) * | 2002-10-09 | 2012-03-15 | Grace W R & Co | METHOD OF PAINTING CEMENT CONTAINING AMINE CONTAINING CEMENT PROCESSING ADDITIVES |
| JP2015213869A (en) * | 2014-05-09 | 2015-12-03 | 株式会社片山化学工業研究所 | Crushing method of mineral or rock or their composition, and treatment agent for use therein |
| CN108025314B (en) * | 2015-07-16 | 2020-02-18 | 德国莱歇公司 | Method and apparatus for preparing and activating green stock |
-
1978
- 1978-11-30 JP JP14924378A patent/JPS5575747A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5575747A (en) | 1980-06-07 |
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