All issues
Predecessor
Volume 50, Issue 3
Displaying 1-6 of 6 articles from this issue
- |<
- <
- 1
- >
- >|
-
Evaluation on the Grinding Degree of KaolinHitoshi TAKEBAYASHI, Shun'ichi NORO, Masumi KOISHI1977 Volume 50 Issue 3 Pages 115-122
Published: March 20, 1977
Released on J-STAGE: November 20, 2012
JOURNAL FREE ACCESSKaolin was mechanically ground in 50% (v/v) ethyl alcohol aqueous solution and the grinding degree of kaolin in wet grinding processes way analyzed by analytical methods I, II, and III proposed for studying kinetic mechanism.
_??_ grinding of kaolin by using a centrifugal rotating-type ball mill, the effects of the terms such as, (1) rotating number, (2) amount of alumina ball, and (3) amount of kaolin, were examined for the grinding of kaolin.
From the data obtained by three proposed analytical methods for the changes of the grinding degree of kaolin with time, the following results were concluded.
(1) As regards the rotating number of ball mill, the proposed analytical methods II and III could not be applied, because the grinding process was not a regular one.
(2) In the changes of alumina ball numbers, the grinding degree of kaolin increased as the number of alumina balls decreased. The grinding rate constant of kaolin was calculated from the proposed analytical method III in consideration of the grinding resistance of stainless steel fine powder to kaolin.
(3) When the amounts of kaolin were varied, the increase of grinding degree of kaolin was observed in the small amounts of kaolin. Furthermore, the both values of grinding rate constants and grinding-resistant rate constants were easily calculated by proposed analytical method III.View full abstractDownload PDF (1004K) -
Evaluation by the Physical Adsorption of Stainless Steel Fine Powder on the Surface of KaolinHitoshi TAKEBAYASHI, Hisao HIDAKA, Shun'ichi NORO, Masumi KOISHI1977 Volume 50 Issue 3 Pages 123-129
Published: March 20, 1977
Released on J-STAGE: November 20, 2012
JOURNAL FREE ACCESSKaolin was mechanically ground in 50% (v/v) ethyl alcohol aqueous solution, by using a centrifugal rotating-type ball mill.
In grinding process the stainless steel fine powders, which were liberated from the stainless steel lining wall by hard strikes with both alumina balls and kaolin particles, were physically adsorbed on, the surface of ground kaolin. These wet grinding processes were analyzed by analytical methods I and II proposed for studying kinetic mechanism.
In this paper, therefore, the authors studied on the effect of (1) rotating number, (2) amount of alumina ball, (3) amounts of kaolin for the physical adsorption of stainless steel fine powder on the-surface of kaolin.
From the data obtained with increasing amount of the stainless steel fine powder on kaolin surface with time, the following results were concluded by two proposed analytical methods.
(1) By the physical adsorption rate constant calculated with proposed analytical method I, the existence of three regions, such as grinding induced region, transition grinding region, and steady state grinding region was clearly found.
(2) In all experiments, physical adsorption rate constant of stainless steel fine powder on the surface of kaolin was obtained reasonably by calculation with the proposed analytical method II.View full abstractDownload PDF (1632K) -
Yuzo YASUDA, Masana KOJIMA1977 Volume 50 Issue 3 Pages 130-135
Published: March 20, 1977
Released on J-STAGE: November 20, 2012
JOURNAL FREE ACCESS -
Yoshime MATSUNO, Mitsuo SAKAMOTO1977 Volume 50 Issue 3 Pages 136-142
Published: March 20, 1977
Released on J-STAGE: November 20, 2012
JOURNAL FREE ACCESS -
Kouichi YANO1977 Volume 50 Issue 3 Pages 143-148
Published: March 20, 1977
Released on J-STAGE: November 20, 2012
JOURNAL FREE ACCESSDownload PDF (939K) -
Masumi KOISHI1977 Volume 50 Issue 3 Pages 149-153
Published: March 20, 1977
Released on J-STAGE: November 20, 2012
JOURNAL FREE ACCESSDownload PDF (732K)
- |<
- <
- 1
- >
- >|