GB372044A - Process for producing an improved lime suitable for constructional purposes - Google Patents
Process for producing an improved lime suitable for constructional purposesInfo
- Publication number
- GB372044A GB372044A GB9045/31A GB904531A GB372044A GB 372044 A GB372044 A GB 372044A GB 9045/31 A GB9045/31 A GB 9045/31A GB 904531 A GB904531 A GB 904531A GB 372044 A GB372044 A GB 372044A
- Authority
- GB
- United Kingdom
- Prior art keywords
- kgm
- lime
- treated
- added
- zeolites
- 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
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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Lime is slaked by treatment with mineral acids such as hydrochloric or sulphuric acid, with the addition, if desired, of various salts, in a closed chamber to conserve the heat of reaction. Salts which may be used are chlorides, chlorates, hypochlorites, sulphates, persulphates, sulphites, hydrosulphites, sulphides, or permanganates. The formation of cementitious compounds is enhanced by the presence of silica or silicates, which, if not present, may be added, e.g. as aluminium hydrosilicate in the form of zeolites. Hydraulic limes may be so treated, and instead of treating the whole mass, a portion may be treated with a larger quantity of reagent and added to the untreated lime. A suitable mixture is 100 kgm. of common lime in pieces, 40 kgm. of water, 6 to 10 kgm. of mineral acid, and 0,5 to 1 kgm. of the additional substances specified.ALSO:Lime, quick or hydrated, for use as a mortar constituent, is treated with mineral acids with the addition, if desired, of various salts, in a closed chamber to conserve the heat of reaction. The formation of cementitious compounds is enhanced by the presence of silica or silicates, which, if not present, may be added, e.g. as aluminium hydrosilicate in the form of zeolites. Hydraulic limes may be so treated and instead of treating the whole mass, a portion may be treated with a larger quantity of reagent and added to the untreated lime. A suitable mixture is 100 kgm. of common lime in pieces, 40 kgm. of water, 6 to 10 kgm. of mineral acid, and 0,5 to 1 kgm. of the additional substances specified.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT372044X | 1930-05-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB372044A true GB372044A (en) | 1932-05-05 |
Family
ID=11245880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9045/31A Expired GB372044A (en) | 1930-05-15 | 1931-03-24 | Process for producing an improved lime suitable for constructional purposes |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE377548A (en) |
| GB (1) | GB372044A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE762900C (en) * | 1939-07-05 | 1951-08-06 | Friedrich Wilhelm Jahr | Cementitious binder and process for its manufacture |
| FR2687396A1 (en) * | 1992-01-31 | 1993-08-20 | Lhoist Rech & Dev Sa | Fluid highly conc. stable calcium and/or magnesium hydroxide slurry |
-
1931
- 1931-02-21 BE BE377548A patent/BE377548A/fr unknown
- 1931-03-24 GB GB9045/31A patent/GB372044A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE762900C (en) * | 1939-07-05 | 1951-08-06 | Friedrich Wilhelm Jahr | Cementitious binder and process for its manufacture |
| FR2687396A1 (en) * | 1992-01-31 | 1993-08-20 | Lhoist Rech & Dev Sa | Fluid highly conc. stable calcium and/or magnesium hydroxide slurry |
| BE1006655A5 (en) * | 1992-01-31 | 1994-11-08 | Lhoist Rech & Dev Sa | Milk lime and / or magnesium hydroxide. |
Also Published As
| Publication number | Publication date |
|---|---|
| BE377548A (en) | 1931-03-31 |
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