Title:
【発明の名称】紙残留物からパゾラニツク材料を調製する方法およびパゾラニツク材料からセメントを製造する方法
Document Type and Number:
Japanese Patent JPH10507992
Kind Code:
A
Abstract:
A method of making a hydraulic material which contains metakaolinite and calcium hydroxide from a kaolin-containing compound. The method is performed in a fluidized bed installation having a freeboard under conditions such that the amount of calcium oxide formed is minimized. Preferably, the method is performed at a fluidized bed temperature of 780 DEG C. and a freeboard temperature of no more than 780 DEG C. By minimizing the amount of calcium hydroxide formed, the use of an additional installation for converting calcium oxide to calcium hydroxide is avoided. The starting material is typically waste paper and other residues from recycling of waste paper for reuse in the paper industry. The product may be used to form concrete having a high compression strength.
Inventors:
Biermann, Joseph Jan Peter
Briel felt, robert
Nikto, quarto
Hrusiel, Hendrik Jacobs
Briel felt, robert
Nikto, quarto
Hrusiel, Hendrik Jacobs
Application Number:
JP50796396A
Publication Date:
August 04, 1998
Filing Date:
August 24, 1995
Export Citation:
Assignee:
T'day AM Holland Behr
International Classes:
B01J6/00; B01J8/18; C04B2/06; C04B7/12; C04B18/06; C04B14/10; C04B18/10; C04B28/04; (IPC1-7): C04B28/04; C04B18/10
Attorney, Agent or Firm:
Toshio Takayama