GB222159A - Improvements in the manufacture of adsorbent materials - Google Patents
Improvements in the manufacture of adsorbent materialsInfo
- Publication number
- GB222159A GB222159A GB847723A GB847723A GB222159A GB 222159 A GB222159 A GB 222159A GB 847723 A GB847723 A GB 847723A GB 847723 A GB847723 A GB 847723A GB 222159 A GB222159 A GB 222159A
- Authority
- GB
- United Kingdom
- Prior art keywords
- carbonate
- treatment
- alkali
- salt
- lime
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/345—Regenerating or reactivating using a particular desorbing compound or mixture
- B01J20/3475—Regenerating or reactivating using a particular desorbing compound or mixture in the liquid phase
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
- B01J20/043—Carbonates or bicarbonates, e.g. limestone, dolomite, aragonite
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
- B01J20/045—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium containing sulfur, e.g. sulfates, thiosulfates, gypsum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
- B01J20/048—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium containing phosphorus, e.g. phosphates, apatites, hydroxyapatites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/3085—Chemical treatments not covered by groups B01J20/3007 - B01J20/3078
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
Calcium salts having adsorbent properties suitable for the treatment of liquids such as sugar solutions or oils and of gases and vapours are prepared by converting calcium oxide or hydroxide into an insoluble salt by treatment with an acid in presence of an alkali metal hydroxide or salt or with a large excess of an alkali salt with subsequent treatment of the solution remaining by an acid to regenerate the alkali salt. The calcium salts mentioned are the carbonate, sulphite, sulphate, phosphate, oxalate and tartrate the particular description relating to the production of carbonate. Milk of lime mixed with a solution of potassium or sodium carbonate or hydrate is treated with carbon dioxide at 90 DEG C. or higher. The precipitate may be washed with various liquids; for instance for use in the treatment of oils it may be washed with soda solution benzine or alcohol, and the precipitate may be used wet or wholly or partially dried; and various substances may be admixed with it such as amylum, gelatine, casein, tannin, or soda which prevents the particles from adhering to each other and facilitate their contact with the liquid to be treated. Alternatively finely divided lime or milk of lime, together with caustic alkali or alkali carbonate is distributed in a chamber into which carbon dioxide is admitted together with steam or superheated steam preferably under pressure; calcium sulphite may be made by employing sulphur dioxide in this process, and calcium sulphate by employing sulphur dioxide and sufficient superheated steam. Alternatively a large excess of sodium carbonate is added to milk of lime, an excess of 25 or 50 per cent being suitable; and before or after the separation of the precipitate the solution is treated with carbon dioxide, or flue gases to convert the caustic soda formed into carbonate for re-use. Specifications 183,485 and 184,473, [both in Class 46, Filtering &c.], are referred to.ALSO:Calcium salts having adsorbent properties suitable for the treatment of liquids such as sugar solutions or oils and of gases and vapours are prepared by converting calcium oxide or hydroxide into an insoluble salt by treatment with an acid in presence of an alkali metal hydroxide or salt or with a large excess of an alkali salt with subsequent treatment of the solution remaining by an acid to regenerate the alkali salt. Calcium oxalate and tartrate are mentioned, the particular description relating to the production of carbonate.ALSO:Calcium salts having adsorbent properties suitable for the treatment of liquids such as sugar solutions or oils and of gases and vapours are prepared by converting calcium oxide or hydroxide into an insoluble salt by treatment with an acid in presence of an alkali metal hydroxide or salt or with a large excess of an alkali salt with subsequent treatment of the solution remaining by an acid to regenerate the alkali salt. The calcium salts mentioned are the carbonate, sulphite, sulphate, phosphate, oxalate, and tartrate, the particular description relating to the production of carbonate. Milk of lime mixed with a solution of potassium or sodium carbonate or hydrate is treated with carbon dioxide at 90 DEG C. or higher. The precipitate may be washed with various liquids; for instance, for use in the treatment of oils it may be washed with soda solution benzine or alcohol, and the precipitate may be used wet or wholly or partially dried; and various substances may be admixed with it such as amylum, gelatine, casein, tannin, or soda, which prevent the particles from adhering to each other and facilitate their contact with the liquid to be treated. Alternatively, finely divided lime or milk of lime, together with caustic alkali or alkali carbonate, is distributed in a chamber into which carbon dioxide is admitted, together with steam or superheated steam, preferably under pressure. Calcium sulphite may be made by employing sulphur dioxide in this process, and calcium sulphate by employing sulphur dioxide and sufficient superheated steam. Alternatively, a large excess of sodium carbonate is added to milk of lime, an excess of 25 or 50 per cent being suitable; and before or after the separation of the precipitate the solution is treated with carbon dioxide or flue gases to convert the caustic soda formed into carbonate for re-use. Specifications 183,485, [Class 46, Filtering &c.], and 184,473 are referred to.ALSO:Calcium salts having adsorbent properties suitable for the treatment of liquids such as sugar solutions or oils and of gases and vapours are prepared by converting calcium oxide or hydroxide into an insoluble salt by treatment with an acid in presence of an alkali metal hydroxide or salt or with a large excess of an alkali salt with subsequent treatment of the solution remaining by an acid to regenerate the alkali salt. The calcium salts mentioned are the carbonate, sulphite, sulphate, phosphate, oxalate and tartrate, the particular description relating to the production of carbonate. Milk of lime mixed with a solution of potassium or sodium carbonate or hydrate is treated with carbon dioxide at 90 DEG C. or higher. The precipitate may be washed with various liquids; for instance for use in the treatment of oils it may be washed with soda solution, benzine or alcohol, and the precipitate may be used wet or wholly or partially dried; and various substances may be admixed with it such as amylum, gelatine, casein, tannin, or soda which prevent the particles from adhering to each other and facilitate their contact with the liquid to be treated. Alternatively, finely-divided lime or milk of lime, together with caustic alkali or alkali carbonate is distributed in a chamber into which carbon dioxide is admitted together with steam or superheated steam preferably under pressure; calcium sulphite may be made by employing sulphur dioxide in this process, and calcium sulphate by employing sulphur dioxide and sufficient superheated steam. Alternatively, a large excess of sodium carbonate is added to milk of lime, an excess of 25 or 50 per cent being suitable; and before or after the separation of the precipitate the solution is treated with carbon dioxide or flue gases to convert the caustic soda formed into carbonate for re-use. Specifications 183,485 and 184,473, [Class 46, Filtering &c.], are referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB847723A GB222159A (en) | 1923-03-26 | 1923-03-26 | Improvements in the manufacture of adsorbent materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB847723A GB222159A (en) | 1923-03-26 | 1923-03-26 | Improvements in the manufacture of adsorbent materials |
Publications (1)
Publication Number | Publication Date |
---|---|
GB222159A true GB222159A (en) | 1924-09-26 |
Family
ID=9853199
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB847723A Expired GB222159A (en) | 1923-03-26 | 1923-03-26 | Improvements in the manufacture of adsorbent materials |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB222159A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0566260A1 (en) * | 1992-03-28 | 1993-10-20 | Crosfield Limited | Sorbing agents |
-
1923
- 1923-03-26 GB GB847723A patent/GB222159A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0566260A1 (en) * | 1992-03-28 | 1993-10-20 | Crosfield Limited | Sorbing agents |
US5360547A (en) * | 1992-03-28 | 1994-11-01 | Unilever Patent Holdings B.V. | Sorbing agents |
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