Design of Grinding Aid in Dry Ultrafine Grinding

干法超微粉碎助磨剂的设计

• 批准号: 05650742
• 负责人: HASEGAWA Masahiro
• 金额: $ 1.28万
• 依托单位: Yamagata University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-05650742/
• 关键词: Grinding Aid; Ultrafine Grinding; Vibrating Mill; Specific Surface Area; Alcohol; Multivariate Analysis; 振動ボールミル

The effect of grinding aids on the ultrafine grinding of various samples was studied by using a vibrating mill. Samples used were feldspar, quartz, alumina and limestone and alcohols with different alkyl groups were mainly used as the grinding aids. The variations in specific surface areas of the products were examined with grinding time and amount of grinding aid. The relationships between the specific surface area of products and the physical properties of grinding aid were also invetigated by means of a multivariate analysis.The principle results obtained are as follows : 1. The effect of grinding aids varied remarkably with the kinds of alcohols and the amount of alcohol added, though all alcohols were effective grinding aids. 2. The excessive grinding conversely decreased the specific surface area of products. 3. The most effective amount of grinding aid increased with the fineness of samples. 4. The grinding aids of 1-Butanol and methanol were most effective for feldspar and quartz, respectively. 5. The addition of alcohol aids increased the flowability of products. 6. In the physical properties of grinding aids, the ratio of dipole moment to molecular volume, vapor pressure and surface tention were closely related to the specific surface area of products.

用振动磨研究了助磨剂对不同试样超细粉碎的影响。所用样品为长石、石英、氧化铝和石灰石，助磨剂主要为不同烷基的醇类。考察了助磨剂用量、助磨时间对产物比表面积的影响。本文还用多元分析方法研究了产品比表面积与助磨剂物理性能之间的关系，得到的主要结果如下：1。助磨剂的助磨效果随醇类的种类和添加量的不同而有显著差异，但所有醇类都是有效的助磨剂。2.过度研磨反而降低了产品的比表面积。3.助磨剂的最大有效用量随试样细度的增加而增加。4.正丁醇和甲醇助磨剂对长石和石英的助磨效果最好。5.醇类助剂的加入增加了产品的流动性。6.在助磨剂的物理性质中，偶极矩与分子体积之比、蒸汽压和表面张力与产品的比表面积密切相关。

项目成果

MASAHIRO HASEGAWA: "The Effect of Alcohol Grinding Aids on the Ultrafine Grinding of Feldspar." J.Soc.Powder Tech.Japan. 30-8. 570-575 (1993)

MASAHIRO HASEGAWA：“酒精助磨剂对长石超细研磨的影响。”

長谷川政裕: "長石の乾式超微粉砕における液体粉砕助剤" 化学工学会秋田大会研究発表講演要旨集. 244-245 (1993)

Masahiro Hasekawa：“长石干式超细研磨中的液体研磨助剂”化学工程师学会秋田会议上的研究报告摘要 244-245 (1993)。

長谷川政裕: "長石の超微粉砕におけるアルコール粉砕助剤の効果" 粉体工学会誌. 30. 570-575 (1993)

Masahiro Hasekawa：“酒精研磨助剂对长石超细研磨的影响”粉末工程学会杂志 30. 570-575 (1993)。

MASAHIRO HASEGAWA: "Liquid Grinding Aids in Dry Ultrafine Grinding of Feldspar." Proceeding of the the Soc.chem.Eng., Japan at Akita. 244-245 (1993)

MASAHIRO HASEGAWA：“长石干式超细研磨中的液体研磨助剂。”

長谷川政裕: "石英の乾式超微粉砕におけるアルコール類の助剤効果" 化学工学会第59年会研究発表講演要旨集. 144- (1994)

Masahiro Hasekawa：“醇在石英干式超细研磨中的辅助作用”化学工程师学会第 59 届年会摘要 144-（1994 年）。