FR2417481A1 - PROCESS FOR OBTAINING A NEW SHAPED POROUS PRODUCT - Google Patents

PROCESS FOR OBTAINING A NEW SHAPED POROUS PRODUCT

Info

Publication number
FR2417481A1
FR2417481A1 FR7904397A FR7904397A FR2417481A1 FR 2417481 A1 FR2417481 A1 FR 2417481A1 FR 7904397 A FR7904397 A FR 7904397A FR 7904397 A FR7904397 A FR 7904397A FR 2417481 A1 FR2417481 A1 FR 2417481A1
Authority
FR
France
Prior art keywords
obtaining
porous product
shaped porous
product
insulators
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
FR7904397A
Other languages
French (fr)
Inventor
Sakuzaemon Imae
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kansai Thermal Insulating Industry Co
Original Assignee
Kansai Thermal Insulating Industry Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP1812878A external-priority patent/JPS54111511A/en
Priority claimed from JP1812978A external-priority patent/JPS54111522A/en
Application filed by Kansai Thermal Insulating Industry Co filed Critical Kansai Thermal Insulating Industry Co
Publication of FR2417481A1 publication Critical patent/FR2417481A1/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
    • C04B38/063—Preparing or treating the raw materials individually or as batches
    • C04B38/0635—Compounding ingredients
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/14—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silica
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Abstract

L'invention a pour but d'obtenir à bas prix un produit en forme poreux présentant des caractéristiques améliorees d'isolation thermique. On part d'un mélange de poudre de silice et d'une petite fraction de poudre de carbone qu'on soumet à une compression à sec et qu'on cuit pour obtenir un produit poreux fritté présentant une conductivité plus faible que les isolants thermiques traditionnels comme le montre la figure 2 sur laquelle la courbe de la conductivité thermique en fonction de la température est au-dessous des courbes correspondant aux isolants traditionnels. L'invention s'applique à l'utilisation des poussières de la métallurgie du silicium et du ferrosilicium.The object of the invention is to obtain at low cost a product in porous form having improved thermal insulation characteristics. We start with a mixture of silica powder and a small fraction of carbon powder which is subjected to dry compression and baked to obtain a sintered porous product having a lower conductivity than traditional thermal insulators. as shown in Figure 2 on which the curve of thermal conductivity as a function of temperature is below the curves corresponding to traditional insulators. The invention applies to the use of dust from silicon and ferrosilicon metallurgy.

FR7904397A 1978-02-21 1979-02-21 PROCESS FOR OBTAINING A NEW SHAPED POROUS PRODUCT Pending FR2417481A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1812878A JPS54111511A (en) 1978-02-21 1978-02-21 Production of refractory inorganic porous formed body for high temerature use
JP1812978A JPS54111522A (en) 1978-02-21 1978-02-21 Production of water repelient inorganic porous body

Publications (1)

Publication Number Publication Date
FR2417481A1 true FR2417481A1 (en) 1979-09-14

Family

ID=26354747

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7904397A Pending FR2417481A1 (en) 1978-02-21 1979-02-21 PROCESS FOR OBTAINING A NEW SHAPED POROUS PRODUCT

Country Status (4)

Country Link
AU (1) AU4439979A (en)
DE (1) DE2906754A1 (en)
FR (1) FR2417481A1 (en)
GB (1) GB2015984A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982002707A1 (en) * 1981-02-04 1982-08-19 Glaswerke Schott Porous moulded body made of a vitreous and/crystalline sinter ed material
EP0354839A2 (en) * 1988-08-09 1990-02-14 Osaka Gas Co., Ltd. Porous inorganic body and process for preparing the same
EP0360593A2 (en) * 1988-09-21 1990-03-28 Ngk Insulators, Ltd. Method of producing porous ceramic honeycomb structural bodies

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE533215A (en) *
FR1077891A (en) * 1952-05-28 1954-11-12 Pittsburgh Corning Corp Improvements in cellular silica and its preparation process
GB1058204A (en) * 1962-08-30 1967-02-08 Shinagawa Fire Brick Co Ltd Siliceous graphitic refractory material
FR2199752A5 (en) * 1972-09-19 1974-04-12 Kurz Fredrik W A Porous ceramics - eg expanded clay by reacting clay with flue gas or filter dust
DE2423096A1 (en) * 1973-05-18 1975-03-20 Shikoku Kaken Kogyo Kk PROCESS FOR MANUFACTURING AN INORGANIC, PEROUS FORM MATERIAL
FR2344511A1 (en) * 1976-03-17 1977-10-14 Steag Ag PROCESS AND INSTALLATION FOR THE MANUFACTURE OF BRICKS AND IN PARTICULAR REFRACTORY BRICKS FROM A PULP CONTAINING FLY ASH GENERALLY COMING FROM THERMAL PLANTS

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE533215A (en) *
FR1077891A (en) * 1952-05-28 1954-11-12 Pittsburgh Corning Corp Improvements in cellular silica and its preparation process
GB1058204A (en) * 1962-08-30 1967-02-08 Shinagawa Fire Brick Co Ltd Siliceous graphitic refractory material
FR2199752A5 (en) * 1972-09-19 1974-04-12 Kurz Fredrik W A Porous ceramics - eg expanded clay by reacting clay with flue gas or filter dust
DE2423096A1 (en) * 1973-05-18 1975-03-20 Shikoku Kaken Kogyo Kk PROCESS FOR MANUFACTURING AN INORGANIC, PEROUS FORM MATERIAL
FR2344511A1 (en) * 1976-03-17 1977-10-14 Steag Ag PROCESS AND INSTALLATION FOR THE MANUFACTURE OF BRICKS AND IN PARTICULAR REFRACTORY BRICKS FROM A PULP CONTAINING FLY ASH GENERALLY COMING FROM THERMAL PLANTS

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982002707A1 (en) * 1981-02-04 1982-08-19 Glaswerke Schott Porous moulded body made of a vitreous and/crystalline sinter ed material
EP0354839A2 (en) * 1988-08-09 1990-02-14 Osaka Gas Co., Ltd. Porous inorganic body and process for preparing the same
EP0354839A3 (en) * 1988-08-09 1991-01-09 Osaka Gas Co., Ltd. Porous inorganic body and process for preparing the same
EP0360593A2 (en) * 1988-09-21 1990-03-28 Ngk Insulators, Ltd. Method of producing porous ceramic honeycomb structural bodies
EP0360593A3 (en) * 1988-09-21 1991-03-06 Ngk Insulators, Ltd. Method of producing porous ceramic honeycomb structural bodies

Also Published As

Publication number Publication date
AU4439979A (en) 1979-08-30
DE2906754A1 (en) 1979-08-30
GB2015984A (en) 1979-09-19

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