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Title:
HEAT-INSULATING MONOLITHIC REFRACTORY MATERIAL
Document Type and Number:
WIPO Patent Application WO/2016/125910
Kind Code:
A1
Abstract:
The present invention provides a heat-insulating monolithic refractory material which can ensure satisfactory curing strength and serviceable life and which exhibits excellent stability at high temperatures. This heat-insulating monolithic refractory material is obtained by blending a binding agent and fire-resistant raw materials, and has a bulk specific gravity of 0.8-1.8 when a kneaded mixture of the heat-insulating monolithic refractory material and water is cured at normal temperature for 24 hours and then dried at 110°C for 24 hours. The heat-insulating monolithic refractory material is characterized in that the binding agent contains a calcium aluminate cement, which contains CaO and Al2O3 as chemical components, and a strontium aluminate cement, which contains SrO and Al2O3 as chemical components, and in that when the total quantity of the binding agent and the fire-resistant raw materials is 100 mass %, the content of the strontium aluminate cement is 2-10 mass % and the content of CaO derived from the calcium aluminate cement is 1-12 mass %.

Inventors:
KONO, Koji (6-1 Marunouchi 2-chome, Chiyoda-ku Tokyo, 71, 〒1008071, JP)
KURIHARA, Toshimitsu (6-1 Marunouchi 2-chome, Chiyoda-ku Tokyo, 71, 〒1008071, JP)
MATSUTANI, Yuki (1-1 Higashihama-machi, Yahatanishi-ku Kitakyushu-sh, Fukuoka 86, 〒8068586, JP)
IKEBE, Tetsunori (1-1 Higashihama-machi, Yahatanishi-ku Kitakyushu-sh, Fukuoka 86, 〒8068586, JP)
Application Number:
JP2016/053611
Publication Date:
August 11, 2016
Filing Date:
February 08, 2016
Export Citation:
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Assignee:
NIPPON STEEL & SUMITOMO METAL CORPORATION (6-1 Marunouchi 2-chome, Chiyoda-ku Tokyo, 71, 〒1008071, JP)
KROSAKIHARIMA CORPOLARION (1-1 Higashihama-machi, Yahatanishi-ku Kitakyushu-sh, Fukuoka 86, 〒8068586, JP)
International Classes:
C04B35/66; F27D1/00
Domestic Patent References:
WO2010047136A12010-04-29
Foreign References:
JPS4910137B11974-03-08
Other References:
CHATTERJEE, A. K.: "Re-examining the prospects of aluminous cements based on alkali-earth and rare-earth oxides", CEMENT AND CONCRETE RESEARCH, vol. 39, 2009, pages 981 - 988, XP026669969, ISSN: 0008-8846
See also references of EP 3255024A4
Attorney, Agent or Firm:
EIWA PATENT FIRM (Hakata-Shin-mitsui bldg, 4F 1-1-1, Hakataekimae, Hakata-ku, Fukuoka-sh, Fukuoka 11, 〒8120011, JP)
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