JPS6442344A - Lightweight magnesia clinker and its production - Google Patents

Lightweight magnesia clinker and its production

Info

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
Application number
JP62196035A
Other languages
Japanese (ja)
Other versions
JP2612170B2 (en
Inventor
Masatoshi Yamamoto
Akira Kaneyasu
Riichi Iwamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ube Chemical Industries Co Ltd
Original Assignee
Ube Chemical Industries Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ube Chemical Industries Co Ltd filed Critical Ube Chemical Industries Co Ltd
Priority to JP62196035A priority Critical patent/JP2612170B2/en
Publication of JPS6442344A publication Critical patent/JPS6442344A/en
Application granted granted Critical
Publication of JP2612170B2 publication Critical patent/JP2612170B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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.
JP62196035A 1987-08-04 1987-08-04 Lightweight magnesia clinker and its manufacturing method Expired - Lifetime JP2612170B2 (en)

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)

* Cited by examiner, † Cited by third party
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
US4725390A (en) Process for making ceramic spheroids
GB1569559A (en) Refractory compositions
JP5682809B2 (en) Method for producing heavy metal or fluorine elution reducing material
JPH069263A (en) Production of sintered lime compact
JPS6442344A (en) Lightweight magnesia clinker and its production
JP2006167524A (en) Treatment method for arsenic-containing soil
GB990672A (en) Improvements in method of pelletizing finely divided solid materials
JP6356933B1 (en) Disposal method of mud generated by muddy water type shield method
JP2001342461A (en) Ground stabilization material
Wang et al. Comparison of various commercial limes for soil stabilization
US3893867A (en) Magnesia-base sintered article and process for producing the same
RU2430045C1 (en) Charge for porous filler production
KR890000375A (en) Lightweight Magnesia Clinker and its manufacturing method
JPH0544428B2 (en)
JP3419063B2 (en) Pressureless sintering of calcium carbonate
Khalil EFFECT OF SAND PARTICLE SIZE DISTRIBUTION ON THE CERAMIC PROPERTIES OF THE FIRED CLAY BODIES
KR0181655B1 (en) Method for manufacturing artificial stone for orchid
RU2086020C1 (en) Method for liquid radioactive waste recovery
JP2004261723A (en) Expandable composition and crushing agent containing the composition
Yin et al. Reaction between carbonaceous rocks and water glass
JPS56152287A (en) Manufacture of piezoelectric material
SU667527A1 (en) Method of obtaining corundum granules
JPS55167115A (en) Manufacture of carbon powder for transmitter
JPS6483512A (en) Low soda alumina
JP2001010849A (en) Lightweight fine aggregate and lightweight mortar and lightweight concrete comprising the same