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
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王宏德
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Jiangxi Secretary Special Foam Material Co Ltd
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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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