JPS6442344A - Lightweight magnesia clinker and its production - Google Patents
Lightweight magnesia clinker and its productionInfo
- Publication number
- JPS6442344A JPS6442344A JP62196035A JP19603587A JPS6442344A JP S6442344 A JPS6442344 A JP S6442344A JP 62196035 A JP62196035 A JP 62196035A JP 19603587 A JP19603587 A JP 19603587A JP S6442344 A JPS6442344 A JP S6442344A
- Authority
- JP
- Japan
- Prior art keywords
- magnesia clinker
- pore
- component
- forming
- lightweight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Compositions Of Oxide Ceramics (AREA)
Abstract
PURPOSE:To produce a lightweight magnesia clinker have a small pore diameter and large apparent porosity by mixing a specified magnesium oxide component with a fine-powder combustible pore-forming material and magnesium salt, and granulating, forming and calcining the mixture. CONSTITUTION:A magnesium oxide component (A) with a grain-size distribution of <=5wt.% remaining portion on a 100-mesh screen is obtained by grinding MgCO3, Mg(OH)2, natural or sea-water magnesia clinker-powder, or a dust containing an active magnesia collected from a rotary kiln on the production of a magnesia clinker. A 10-40pts.wt. petroleum coke, etc., to 100pts.wt. A component is incorporated, as (B) a fine-powdery combustible pore-forming material. 1-15wt.% magnesium salt (e.g., MgSO4, MgCl2) to the total weight of A and B components is further incorporated with the A component. By forming the obtained mixture to be <=3mm mean particle diameter, and calcining the particles at 1,300-1,600 deg.C, the lightweight magnesia clinker is produced, containing >=85wt.% MgO, and having >=40vol.% apparent porosity, <=2.0g/cm<3> bulk density, and >=90vol.% pore <=50mum diameter in the pores of all the grains.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62196035A JP2612170B2 (en) | 1987-08-04 | 1987-08-04 | Lightweight magnesia clinker and its manufacturing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62196035A JP2612170B2 (en) | 1987-08-04 | 1987-08-04 | Lightweight magnesia clinker and its manufacturing method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6442344A true JPS6442344A (en) | 1989-02-14 |
JP2612170B2 JP2612170B2 (en) | 1997-05-21 |
Family
ID=16351120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62196035A Expired - Lifetime JP2612170B2 (en) | 1987-08-04 | 1987-08-04 | Lightweight magnesia clinker and its manufacturing method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2612170B2 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59190256A (en) * | 1983-04-14 | 1984-10-29 | 太平洋セメント株式会社 | Manufacture of porous magnesia clinker |
-
1987
- 1987-08-04 JP JP62196035A patent/JP2612170B2/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59190256A (en) * | 1983-04-14 | 1984-10-29 | 太平洋セメント株式会社 | Manufacture of porous magnesia clinker |
Also Published As
Publication number | Publication date |
---|---|
JP2612170B2 (en) | 1997-05-21 |
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