Title:
ALKALI-RESISTANT NONCRYSTALLINE INORGANIC COMPOSITION AND FIBER THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/215695
Kind Code:
A1
Abstract:
[Problem] To develop a high added value material having excellent alkali-resistance, by effectively utilizing waste product discharged from coal-fired power plants and copper slag discharged from copper smelteries. [Solution] This inorganic composition, which has excellent alkali resistance and can be melt-spun, is obtained by preparing a noncrystalline inorganic composition containing, as main components, silica (SiO2), iron oxide (Fe2O3), alumina (Al2O3), and calcium oxide (CaO), such that i) the silica, alumina, and calcium oxide are contained in a total amount of 50-75 mass%, ii) the iron oxide is contained in an amount not less than 26 mass% but less than 40 mass%, and iii) the iron oxide is derived from a noncrystalline raw material. Raw materials for the inorganic composition can be derived mostly from coal ash and copper slag.
Inventors:
FUKAZAWA HIROSHI (JP)
UWATOKO YOSHIYA (JP)
UWATOKO YOSHIYA (JP)
Application Number:
PCT/JP2022/017119
Publication Date:
October 13, 2022
Filing Date:
April 05, 2022
Export Citation:
Assignee:
NIPPON FIBER CORP (JP)
International Classes:
C03C3/087; B09B3/40; C03C13/06; C04B14/42
Domestic Patent References:
| WO2020218356A1 | 2020-10-29 | |||
| WO2018008513A1 | 2018-01-11 |
Foreign References:
| JPS632841A | 1988-01-07 | |||
| CN106698914A | 2017-05-24 |
Other References:
INTERNATIONAL JOURNAL OF TEXTILE SCIENCE, vol. 1, no. 4, 2012, pages 19 - 28
Attorney, Agent or Firm:
ISHIKAWA Hiroaki (JP)
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