U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Method of thermal treatment of mineral raw material

Patent 5458833 Issued on October 17, 1995. Estimated Expiration Date: Icon_subject July 22, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Method for making sintered dolomite with a low porosity and a good hydration stability
Patent #: 4394454
Issued on: 07/19/1983
Inventor: Rosener ,   et al.

Method and apparatus for producing dead burnt materials
Patent #: 4626198
Issued on: 12/02/1986
Inventor: Cohen

Method of manufacturing a sintered dolomite in a shaft kiln
Patent #: 4627948
Issued on: 12/09/1986
Inventor: Zepter ,   et al.

Production of sintered dolomite in a rotary kiln Patent #: 5246648
Issued on: 09/21/1993
Inventor: Hammer, et al.

Inventors

Assignee

Application

No. 095952 filed on 07/22/1993

US Classes:

264/658, Including reaction of precursor to form new inorganic compound or composition264/37.29, Of excess solid particulate (e.g., dust, powder, etc.)264/652, Sintering or vitrifying in a tunnel or channel kiln264/654, Including diverse heating of article prior to outside-mold sintering or vitrifying501/112, And iron compound501/113Dolomite containing

Examiners

Primary: Derrington, James

Attorney, Agent or Firm

Foreign Patent References

  • 66278 AT. 
  • 1179692 CA. 12/23/1984
  • 564947 DE. 11/23/2013
  • 1014912 DE. 08/23/2013
  • 1078926 DE. 03/23/1960
  • 973947 DE. 11/23/1964
  • 260768 DE. 03/23/1968
  • 1646473 DE. 08/23/1971
  • 1646918 DE. 07/23/1972
  • 2203413 DE. 08/23/1972
  • 2553001 DE. 06/23/1977
  • 2558410 DE. 07/23/1977
  • 2819038 DE. 11/23/1979
  • 3828997 DE. 12/23/1989

International Class

C04B 035/04

Foreign Application Priority Data

1988-08-26 DE

Abstract

Method for the production of sintered dolomite, wherein at least carbonate material is ground into particles, formed into a predetermined shape, such as briquettes, deacidified and then heated to a predetermined temperature.

Other References

  • Wulfrather Pocketbook for Line and Dolomit, pp. 144-14
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