Magnesia refractories produced from chemically modified periclase grains and Mg(OH)₂ slurries
CDC STACKS serves as an archival repository of CDC-published products including scientific findings, journal articles, guidelines, recommendations, or other public health information authored or co-authored by CDC or funded partners. As a repository, CDC STACKS retains documents in their original published format to ensure public access to scientific information.
i

Magnesia refractories produced from chemically modified periclase grains and Mg(OH)₂ slurries

Filetype[PDF-6.40 MB]


Select the Download button to view the document
This document is over 5mb in size and cannot be previewed
English

Details:

  • Personal Author:
  • Corporate Authors:
  • Description:
    "Based on previous Bureau of Mines research indicating that improved high-temperature properties could be achieved for periclase refractories through chemical additions, the Bureau investigated the properties of full-size bricks produced from chemically modified periclase refractory grains and the suitability of making such chemical additions to mg(oh)2 slurries prior to production of the periclase grains. In full-size brick testing, strength values, both hot and cold, for the optimized bricks were superior to those for a commercial 98-wt-pct-mgo refractory. The best results were obtained for a natural magnesite with an adjusted cao:sio2 (c:s) ratio of 3.0 and a 1.0-wt-pct addition of zro2 and for a seawater periclase with an adjusted c:s ratio of 2.5 and a 0.5-wt-pct addition of mNO2. For samples produced from chemically modified mg(oh)2 slurries, additions of both mNO2 and zro2 and an increase in c:s ratios produced significant increases in hot flexural strength, similar to those resulting from chemical additions made to periclase grains. The most effective modifications were additions of mNO2 to brine- derived periclases having a c:s ratio adjusted to 3.0. These results on chemically modified magnesia refractories indicate that such material could potentially substitute for magnesia-chrome refractories containing imported chromite." - NIOSHTIC-2

    NIOSHTIC no. 10003303

  • Subjects:
  • Series:
  • Subseries:
  • Document Type:
  • Genre:
  • CIO:
  • Topic:
  • Location:
  • Pages in Document:
    14 numbered pages
  • NIOSHTIC Number:
    nn:10003303
  • Collection(s):
  • Main Document Checksum:
  • Download URL:
  • File Type:

Supporting Files

  • No Additional Files
More +

You May Also Like

Checkout today's featured content at stacks.cdc.gov