CN114605131A - 一种用于固体粉料冷固结成型的乙酸氧镁胶粘剂 - Google Patents
一种用于固体粉料冷固结成型的乙酸氧镁胶粘剂 Download PDFInfo
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- 239000000853 adhesive Substances 0.000 title claims abstract description 32
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 32
- 239000000843 powder Substances 0.000 title claims abstract description 30
- 239000007787 solid Substances 0.000 title claims abstract description 20
- 238000007596 consolidation process Methods 0.000 title claims abstract description 14
- NYWIVMDVEXCJEL-UHFFFAOYSA-N magnesium;acetic acid;oxygen(2-) Chemical compound [O-2].[Mg+2].CC(O)=O NYWIVMDVEXCJEL-UHFFFAOYSA-N 0.000 title claims abstract description 8
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims abstract description 29
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 18
- UEGPKNKPLBYCNK-UHFFFAOYSA-L magnesium acetate Chemical compound [Mg+2].CC([O-])=O.CC([O-])=O UEGPKNKPLBYCNK-UHFFFAOYSA-L 0.000 claims abstract description 15
- 239000011654 magnesium acetate Substances 0.000 claims abstract description 15
- 229940069446 magnesium acetate Drugs 0.000 claims abstract description 15
- 235000011285 magnesium acetate Nutrition 0.000 claims abstract description 15
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 14
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910001868 water Inorganic materials 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 10
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 7
- 239000011777 magnesium Substances 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 238000000465 moulding Methods 0.000 claims abstract description 4
- 238000006243 chemical reaction Methods 0.000 claims abstract description 3
- XKPKPGCRSHFTKM-UHFFFAOYSA-L magnesium;diacetate;tetrahydrate Chemical compound O.O.O.O.[Mg+2].CC([O-])=O.CC([O-])=O XKPKPGCRSHFTKM-UHFFFAOYSA-L 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 claims description 2
- 125000000896 monocarboxylic acid group Chemical group 0.000 claims description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims 2
- 239000001095 magnesium carbonate Substances 0.000 claims 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims 1
- 235000014380 magnesium carbonate Nutrition 0.000 claims 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims 1
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 8
- 229910052717 sulfur Inorganic materials 0.000 abstract description 8
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 7
- 239000000460 chlorine Substances 0.000 abstract description 7
- 229910052801 chlorine Inorganic materials 0.000 abstract description 7
- 239000011574 phosphorus Substances 0.000 abstract description 7
- 239000011593 sulfur Substances 0.000 abstract description 7
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract description 6
- -1 oxygen magnesium acetate Chemical compound 0.000 abstract description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 18
- 239000008188 pellet Substances 0.000 description 11
- 229910052742 iron Inorganic materials 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 6
- 239000002893 slag Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000009628 steelmaking Methods 0.000 description 4
- 238000007885 magnetic separation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229940097364 magnesium acetate tetrahydrate Drugs 0.000 description 2
- 239000001254 oxidized starch Substances 0.000 description 2
- 235000013808 oxidized starch Nutrition 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 235000019353 potassium silicate Nutrition 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- CENHPXAQKISCGD-UHFFFAOYSA-N trioxathietane 4,4-dioxide Chemical compound O=S1(=O)OOO1 CENHPXAQKISCGD-UHFFFAOYSA-N 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/10—Lime cements or magnesium oxide cements
- C04B28/105—Magnesium oxide or magnesium carbonate cements
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/242—Binding; Briquetting ; Granulating with binders
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00637—Uses not provided for elsewhere in C04B2111/00 as glue or binder for uniting building or structural materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0087—Uses not provided for elsewhere in C04B2111/00 for metallurgical applications
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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Abstract
本发明公开了一种用于固体粉料冷固结成型的乙酸氧镁胶粘剂。乙酸氧镁胶粘剂主要原料为活性氧化镁、乙酸镁和/或乙酸。粘接过程中活性氧化镁与乙酸镁和/或乙酸反应生成的乙酸氧镁(xMgO‑yMgAc2‑zH2O)杂化材料起主要粘接作用，将固体粉料固结成一定形状的固体，以利于固体粉料的综合利用。使用本发明的乙酸氧镁胶粘剂粘接固体粉料具有工艺简单，粘接强度大，耐水，高温不爆裂，无硫、磷、氯等优点。
Description
技术领域
本发明涉及胶粘剂技术领域，特别是涉及一种用于固体粉料冷固结成型的乙酸氧镁胶粘剂。
背景技术
冷固结技术是对固体粉料进行冷固结成型的一种工艺技术，它是工业生产中一种重要的处理粉体废弃物的技术，具有生产工艺简单，投资少，不用烧结的特点。如：钢铁企业生产过程中产生的烧结矿返矿粉末、瓦斯灰、瓦斯泥、除尘灰、转炉污泥、脱硫渣、钢渣磁选粉、氧化铁皮以及硫酸生产过程中的硫酸渣等含铁固体颗粒废弃物。这些颗粒废弃物经处理后按一定的配比掺入胶粘剂，混合后压制成型，低温固结，然后作为炼铁、炼钢原料或助剂再利用。冷固结技术的重要环节是胶粘剂的使用，要求粘接工艺简单，低温固结，成本低，固化成型后强度大，耐水，高温不爆裂，不含硫、磷、氯等杂质。现在经常使用的胶粘剂有水泥、黏土、水玻璃、氧化淀粉、聚丙烯酰胺、聚乙烯醇、羧甲基纤维素等。但是这些胶粘剂用于固体粉料冷固结成型，用于炼钢行业，都存在一些问题，如水泥里含硫、磷杂质，固化慢。水玻璃固化、干燥困难，强度差。氧化淀粉固化强度低，耐水性、耐高温差。不能满足实际的大规模应用。
发明内容
针对上述要求，本发明之目的在于提供一种具有优良综合性能的乙酸氧镁(xMgO-yMgAc2-zH2O)胶粘剂，用于固体粉料冷固结成型，提高粘接强度、耐水性和耐高温性能，同时减少硫、磷、氯的含量。
其解决的技术方案是：
一种用于固体粉料冷固结成型的乙酸氧镁胶粘剂，使用以下物质作为胶粘剂的原料：活性氧化镁、乙酸镁和/或乙酸；所述活性氧化镁、乙酸镁和/或乙酸的重量比为30-80％:20-70％。
进一步的，所述活性氧化镁存在于氧化镁粉、菱苦土、轻烧粉、轻烧镁粉等的一种或多种原料中，其活性氧化镁的含量大于10％。
进一步的，所述乙酸镁为无水乙酸镁和/或四水合乙酸镁，其MgAc2的含量大于10％。
进一步的，所述乙酸中CH3COOH的含量大于10％。
进一步的，将乙酸氧镁胶粘剂的各有效成分与水、各种固体粉料以及其它添加剂搅拌混合均匀、压制成型、养护一定时间，养护过程中，乙酸氧镁胶粘剂各有效成分之间反应生成的乙酸氧镁杂化材料将粉体固结成型，其中，所述的胶粘剂中有效成分重量之和的用量为固体粉料量的0.5％-30％。
由于以上乙酸氧镁胶粘剂的采用，本发明与现有技术相比具有如下优点：
(1)本发明的乙酸氧镁胶粘剂由乙酸镁和/或乙酸为主要原料与氧化镁反应，形成具有乙酸基团的无机-有机杂化材料(xMgO-yMgAc2-zH2O)，综合性能优良，具有工艺简单，成本低，粘接强度大，无硫、磷、氯杂质，耐水，高温不爆裂等特点。
(2)本发明的乙酸氧镁胶粘剂应用范围广，可以作为基础粘接材料用于各类固体粉料物的粘接。
(3)利用本发明的乙酸氧镁胶粘剂冷固结固体粉料具有工艺简单，成本低，粘接强度大，无硫、磷、氯杂质，耐水，高温不爆裂等特点。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面将结合本发明实施例，对本发明的技术方案进行清楚、完整地描述。显然，所描述的实施例是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例，都属于本发明保护的范围。
实施例1
提供一种乙酸氧镁胶粘剂用于氧化铁皮固结成型的方法：
将50Kg氧化铁皮，2Kg轻烧粉(MgO含量75％)，0.8Kg四水合乙酸镁，加水混合后强制搅拌，搅拌均匀后，使用对辊压球机压制成3×2×1cm的扁椭球型，在室温下养护3天后，制得氧化铁皮球团，经测试，其单球抗压强度大于120MPa，浸水1天后其抗压强度大于110MPa，球团含水率小于2％，900℃不爆裂，不含硫、磷、氯。具有较好的强度和耐高温性能，球团作为冷却剂用于转炉炼钢。
实施例2
提供一种乙酸氧镁胶粘剂用于钢渣磁选粉固结成型的方法：
将50Kg钢渣磁选粉，2.5Kg轻烧粉(MgO含量75％)，0.5Kg乙酸水溶液(乙酸的含量为80％)，加水混合后强制搅拌，搅拌均匀后，使用对辊压球机压制成3×2×1cm的扁椭球型，在室温下养护3天，制得钢渣磁选粉球团经测试，其抗压强度为80MPa，浸水一天后其抗压强度为60MPa，球团含水率小于2％，900℃不爆裂，不含硫、磷、氯。具有较好的强度和耐高温性能，球团作为冷却剂用于转炉炼钢。
以上所述是结合具体实施方式对本发明所作的进一步详细说明，不能认定本发明具体实施仅局限于此；对于本发明所属及相关技术领域的技术人员来说，在基于本发明技术方案思路前提下，所作的拓展以及操作方法、数据的替换，都应当落在本发明保护范围之内。
Claims (5)
1.一种用于固体粉料冷固结成型的乙酸氧镁胶粘剂，其特征在于，使用包含以下有效成分作为乙酸氧镁胶粘剂的主要原料：活性氧化镁、乙酸镁和/或乙酸；所述活性氧化镁、乙酸镁和/或乙酸的重量比为30-80％:20-70％。
2.根据权利要求1所述的乙酸氧镁胶粘剂，其特征在于，所述活性氧化镁存在于氧化镁粉、菱苦土、轻烧粉、轻烧镁粉等的一种或多种原料中，其活性氧化镁的含量大于10％。
3.根据权利要求1所述的乙酸氧镁胶粘剂，其特征在于，所述乙酸镁为无水乙酸镁和/或四水合乙酸镁，其MgAc2的含量大于10％。
4.根据权利要求1所述的乙酸氧镁胶粘剂，其特征在于，所述乙酸中CH3COOH的含量大于10％。
5.根据权利要求1-4任一所述的乙酸氧镁胶粘剂，其特征在于，所述乙酸氧镁胶粘剂按以下方法使用：将乙酸氧镁胶粘剂有效成分与水、各种固体粉料以及其它添加剂搅拌混合均匀、压制成型、养护一定时间，养护过程中，乙酸氧镁胶粘剂有效成分之间反应生成的乙酸氧镁杂化材料将粉体固结成型，其中，所述的胶粘剂中有效成分重量之和的用量为固体粉料的0.5％-30％。
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| CN1888095A (zh) * | 2006-07-14 | 2007-01-03 | 中南大学 | 一种冷固球团快速固结用粘结剂 |
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