Process for producing a ceramic product for use as a construction material
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0743740
(1991-08-12)
|
우선권정보 |
JP-0059356 (1991-02-28) |
발명자
/ 주소 |
- Hashimoto Ryusuke (Aichi JPX) Iwase Minoru (Gifu JPX)
|
출원인 / 주소 |
- Fujimi Ceramic Co., Ltd. (Nagoya JPX 03)
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
0 |
초록
▼
The invention provides a process for producing a ceramic product for use as a construction material. According to the process of the invention, 2 to 50% by weight, based on the total weight, of sludge ashes containing 0.3 to 0.8 mole of CaO in Seger formula, 0.1 to 0.5 mole of MgO in Seger formula,
The invention provides a process for producing a ceramic product for use as a construction material. According to the process of the invention, 2 to 50% by weight, based on the total weight, of sludge ashes containing 0.3 to 0.8 mole of CaO in Seger formula, 0.1 to 0.5 mole of MgO in Seger formula, and 0.2 mole or more of P2O5 in Seger formula is added to a ceramic raw material. A desired percentage can be selected from the range of 2 to 50% to produce a ceramic product with desired properties. Also, according to the invention, a molded body can be fired at a temperature lower than a temperature used to fire a molded body with no sludge ashes to produce a ceramic product which is comparable to a ceramic product produced by firing the latter molded body. That is, according to the invention, a molded body can be fired at a temperature of 900°to 1,200 °C. to produce such a ceramic product.
대표청구항
▼
A process for producing a ceramic product for use as a construction material, which comprises (a) adding from 2 to 50% by weight, based on the total weight, of sludge ashes to a ceramic raw material, wherein sufficient amounts of CaO, MgO, and P2O5 have been added to said sludge ashes to produce slu
A process for producing a ceramic product for use as a construction material, which comprises (a) adding from 2 to 50% by weight, based on the total weight, of sludge ashes to a ceramic raw material, wherein sufficient amounts of CaO, MgO, and P2O5 have been added to said sludge ashes to produce sludge ashes containing from 0.3 to 0.8 mole of CaO in Seger formula, from 0.1 to 0.5 mole of MgO in Seger formula, and 0.2 mole or more of P2O5 in Seger formula, (b) mixing the whole to prepare a body, (c) molding the body into a desired shape, and (d) firing the molded body at a temperature of from 900°to 1,200°C.
이 특허를 인용한 특허 (1)
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Hnat James G. ; Mathur Akshay ; Simpson James C., Manufacture of ceramic tiles from fly ash.
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