CA2087173C - Hydroxyde de calcium a grande etendue de surface et procedes - Google Patents
Hydroxyde de calcium a grande etendue de surface et procedes Download PDFInfo
- Publication number
- CA2087173C CA2087173C CA 2087173 CA2087173A CA2087173C CA 2087173 C CA2087173 C CA 2087173C CA 2087173 CA2087173 CA 2087173 CA 2087173 A CA2087173 A CA 2087173A CA 2087173 C CA2087173 C CA 2087173C
- Authority
- CA
- Canada
- Prior art keywords
- lime
- hydration
- water
- solution
- produce
- 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.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/502—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific solution or suspension
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/02—Oxides or hydroxides
-
- 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
- C04B2/00—Lime, magnesia or dolomite
- C04B2/02—Lime
- C04B2/04—Slaking
- C04B2/06—Slaking with addition of substances, e.g. hydrophobic agents ; Slaking in the presence of other compounds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/14—Pore volume
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Structural Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
On prépare de la chaux sulfatée hydratée présentant une grande superficie et une faible granulométrie par hydratation de chaux à l'aide d'une solution d'hydratation aqueuse d'un solvant organique, et de préférence par lavage de l'hydrate obtenu à l'aide d'une solution aqueuse d'un solvant organique avant de procéder au séchage. Les hydrates de grande superficie de l'invention sont d'excellents sorbants permettant l'élimination de SO2 de courants de gaz.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US55759090A | 1990-07-24 | 1990-07-24 | |
US557,590 | 1990-07-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2087173A1 CA2087173A1 (fr) | 1992-01-25 |
CA2087173C true CA2087173C (fr) | 2000-02-15 |
Family
ID=24226072
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2087173 Expired - Lifetime CA2087173C (fr) | 1990-07-24 | 1991-07-24 | Hydroxyde de calcium a grande etendue de surface et procedes |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0559650A1 (fr) |
AU (1) | AU8409891A (fr) |
CA (1) | CA2087173C (fr) |
WO (1) | WO1992001627A1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE1009692A3 (fr) | 1995-10-19 | 1997-07-01 | Lhoist Rech & Dev Sa | PARTICULES DE Ca(OH)2. |
BE1016661A3 (fr) * | 2005-06-28 | 2007-04-03 | Lhoist Rech & Dev Sa | Composition de chaux pulverulente, son procede de fabrication et son utilisation. |
CZ305594B6 (cs) * | 2013-12-20 | 2015-12-30 | Ústav Teoretické A Aplikované Mechaniky Av Čr, V. V. I. Akademie Věd České Republiky, V.V.I. | Způsob výroby disperze částic hydroxidu vápenatého a zařízení k provádění tohoto způsobu |
CN110997593B (zh) | 2017-07-17 | 2023-01-24 | 埃科莱布美国股份有限公司 | 使浆料的流变性改性的方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US948045A (en) * | 1909-06-03 | 1910-02-01 | George G Floyd | Manufacture of lime and gas. |
US3120444A (en) * | 1961-05-31 | 1964-02-04 | Kaiser Aluminium Chem Corp | Hydrated lime and method of making the same |
US3991172A (en) * | 1970-05-20 | 1976-11-09 | Rheinische Kalksteinwerke Gmbh | Process for the production of reactive calcium oxide |
SU633810A1 (ru) * | 1977-05-24 | 1978-11-25 | Предприятие П/Я А-3732 | Способ получени гидроокиси кальци |
US4226839A (en) * | 1978-07-21 | 1980-10-07 | The United States Of America As Represented By The Administrator Of The U.S. Environmental Protection Agency | Activation of calcium oxide as a sorbent |
DE3433228C1 (de) * | 1984-09-11 | 1986-04-10 | Rheinische Kalksteinwerke GmbH, 5603 Wülfrath | Verfahren zur Herstellung von Kalziumhydroxid |
DE3804180C1 (fr) * | 1988-02-11 | 1989-08-24 | Rheinische Kalksteinwerke Gmbh, 5603 Wuelfrath, De |
-
1991
- 1991-07-24 EP EP91915156A patent/EP0559650A1/fr not_active Withdrawn
- 1991-07-24 CA CA 2087173 patent/CA2087173C/fr not_active Expired - Lifetime
- 1991-07-24 AU AU84098/91A patent/AU8409891A/en not_active Abandoned
- 1991-07-24 WO PCT/US1991/005226 patent/WO1992001627A1/fr not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
EP0559650A4 (fr) | 1994-03-02 |
EP0559650A1 (fr) | 1993-09-15 |
CA2087173A1 (fr) | 1992-01-25 |
WO1992001627A1 (fr) | 1992-02-06 |
AU8409891A (en) | 1992-02-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed | ||
MKEC | Expiry (correction) |
Effective date: 20121202 |