CN109293342A - 一种锰冶金渣制备多孔陶瓷的方法 - Google Patents

一种锰冶金渣制备多孔陶瓷的方法 Download PDF

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CN109293342A
CN109293342A CN201811217218.7A CN201811217218A CN109293342A CN 109293342 A CN109293342 A CN 109293342A CN 201811217218 A CN201811217218 A CN 201811217218A CN 109293342 A CN109293342 A CN 109293342A
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porous ceramics
electrolytic manganese
manganese
metallurgical slag
prepares porous
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王宏德
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Jiangxi Secretary Special Foam Material Co Ltd
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Jiangxi Secretary Special Foam Material Co Ltd
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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
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
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    • C04B33/132—Waste materials; Refuse; Residues
    • C04B33/138—Waste materials; Refuse; Residues from metallurgical processes, e.g. slag, furnace dust, galvanic waste
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Abstract

本发明提供了一种锰冶金渣制备多孔陶瓷的方法，通过原料的混合研磨、制模、干燥、煅烧、冷却后制得电解锰渣基多孔陶瓷，与现有技术相比，本发明制备电解锰渣基多孔陶瓷的方法流程短、成本低，间接地保护了环境，制备出的电解锰渣基多孔陶瓷性能优良，其中，体积密度可达到600kg/m3，抗压强度可达到3.9MPa，气孔率可达到77％。

Description

一种锰冶金渣制备多孔陶瓷的方法
技术领域
本发明涉及一种陶瓷领域，具体是一种锰冶金渣制备多孔陶瓷的方法。
背景技术
传统上制备多孔陶瓷的原料主要为刚玉、碳化硅、二氧化硅等，而这些原料属于稀缺资源，而且价格昂贵，难以在实际中广泛使用，因此开发利用新原料至关重要。工业废弃物虽然在其他领域得到应用和研究，但固体废物是放错位置的资源，建渣场堆放仍为固体废物主要的处理方式，不仅占用大量的土地面积，而且污染周边自然环境以及居住场所，不符合可持续发展的要求。
发明内容
本发明为了解决上述现有技术所存在的不足之处，利用电解锰渣作为主要原料，添加其他废料，制备出电解锰渣基多孔陶瓷。
本发明提供了一种锰冶金渣制备多孔陶瓷的方法，包括以下步骤：
1)将电解锰渣、偏高岭土、废玻璃及造孔剂按照一定质量比放入研磨机中研磨20min，然后添加适量的水再研磨20min，之后用塑料膜覆盖静置一段时间；
2)称取步骤1)中适量的半干粉料注入模具，将模具置于粉末压片机上，在5-10MPa的压力下保压30s后脱模，其中粉料的固含量为30％；
3)将脱模后的胚体移入烘箱，70℃下烘2h后，放入马弗炉中煅烧，煅烧完成后，对烧制品进行切磨，制得电解锰渣基多孔陶瓷。
进一步的，电解锰渣由二氧化硅、氧化铁和氧化铝组成。
进一步的，电解锰渣、废玻璃、偏高岭土和造孔剂的质量分数分别为20％-50％、40％-70％、0-5％和0-5％。
进一步的，煅烧的烧结温度为1000-1100℃，烧结时间为30-60min。
与现有技术相比，本发明制备电解锰渣基多孔陶瓷的方法流程短、成本低，间接地保护了环境，制备出的电解锰渣基多孔陶瓷性能优良，其中，体积密度可达到600kg/m3，抗压强度可达到3.9MPa，气孔率可达到77％。
具体实施方式
为了进一步理解本发明，下面结合实施例对本发明优选实施方案进行描述，但是应当理解，这些描述只是为进一步说明本发明的特征和优点，而不是对本发明权利要求的限制。
实施例一
一种锰冶金渣制备多孔陶瓷的方法，包括以下步骤：
1)将电解锰渣、偏高岭土、废玻璃及造孔剂按照20：10：70的质量比放入研磨机中研磨20min，然后添加适量的水再研磨20min，之后用塑料膜覆盖静置一段时间；
2)称取步骤1)中适量的半干粉料注入模具，将模具置于粉末压片机上，在5MPa的压力下保压30s后脱模，其中粉料的固含量为30％；
3)将脱模后的胚体移入烘箱，70℃下烘2h后，放入马弗炉中煅烧，煅烧的烧结温度为1050℃，烧结时间为30-60min，煅烧完成后，保温45min后，随炉冷却，冷却后对烧制品进行切磨，制得电解锰渣基多孔陶瓷。
将按上述步骤制得的电解锰渣基多孔陶瓷，进行性能测试，测试结果为600kg/m3的体积密度、3.9MPa的抗压强度、77.2％的气孔率、2.27mm的平均孔径，0.052W/(m·K)的热导率。

Claims (4)

1.一种锰冶金渣制备多孔陶瓷的方法，包括以下步骤：
1)将电解锰渣、偏高岭土、废玻璃及造孔剂按照一定质量比放入研磨机中研磨20min，然后添加适量的水再研磨20min，之后用塑料膜覆盖静置一段时间；
2)称取步骤1)中适量的半干粉料注入模具，将模具置于粉末压片机上，在5-10MPa的压力下保压30s后脱模，其中粉料的固含量为30％；
3)将脱模后的胚体移入烘箱，70℃下烘2h后，放入马弗炉中煅烧，煅烧完成后，对烧制品进行切磨，制得电解锰渣基多孔陶瓷。
2.根据权利要求1所述的一种锰冶金渣制备多孔陶瓷的方法，其特征在于：所述电解锰渣由二氧化硅、氧化铁和氧化铝组成。
3.根据权利要求1所述的一种锰冶金渣制备多孔陶瓷的方法，其特征在于：所述电解锰渣、废玻璃、偏高岭土和造孔剂的质量分数分别为20％-50％、40％-70％、0-5％和0-5％。
4.根据权利要求1所述的一种锰冶金渣制备多孔陶瓷的方法，其特征在于：所述煅烧的烧结温度为1000-1100℃，烧结时间为30-60min。
CN201811217218.7A 2018-10-18 2018-10-18 一种锰冶金渣制备多孔陶瓷的方法 Pending CN109293342A (zh)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110304901A (zh) * 2019-07-12 2019-10-08 铜仁学院 一种电解锰渣透水砖和透气砖的制备方法
CN111320489A (zh) * 2020-03-04 2020-06-23 中南大学 一种固废基高强度泡沫陶瓷及其制备方法
CN111410547A (zh) * 2020-03-04 2020-07-14 中南大学 一种固废基陶瓷催化膜及其制备方法和应用

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
完么东智: ""锰、镍冶金渣制备多孔陶瓷及性能研究"", 《中国优秀硕士学位论文全文数据库（工程科技I辑）》 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110304901A (zh) * 2019-07-12 2019-10-08 铜仁学院 一种电解锰渣透水砖和透气砖的制备方法
CN111320489A (zh) * 2020-03-04 2020-06-23 中南大学 一种固废基高强度泡沫陶瓷及其制备方法
CN111410547A (zh) * 2020-03-04 2020-07-14 中南大学 一种固废基陶瓷催化膜及其制备方法和应用

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