GB1053824A - - Google Patents
Info
- Publication number
- GB1053824A GB1053824A GB1053824DA GB1053824A GB 1053824 A GB1053824 A GB 1053824A GB 1053824D A GB1053824D A GB 1053824DA GB 1053824 A GB1053824 A GB 1053824A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hours
- silica
- alumina
- pore volume
- product
- 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.)
- Active
Links
Classifications
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- 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
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/103—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate comprising silica
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
- C01B33/124—Preparation of adsorbing porous silica not in gel form and not finely divided, i.e. silicon skeletons, by acidic treatment of siliceous materials
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Catalysts (AREA)
Abstract
1,053,824. Silica. W. R. GRACE & CO. Feb. 28, 1964 [March 4, 1963], No. 8472/64. Heading C1A. Microspheroidal silica is prepared by leaching a silica-alumina material containing 7À5-25% active alumina with a 9-45% mineral acid in 25-500% excess over that required to remove alumina, followed by washing and drying. The material may be a petroleum cracking catalyst and the acid may be sulphuric, nitric or hydrochloric. Treatment may be carried out at 91- 110‹ C. for 1¢-6 hours and the product washed to an effluent pH of 3-6. It may then be mixed with NH 4 OH to give a slurry of pH 5À3-11, maintained at up to 90‹ C. for 5 minutes to 6 hours, filtered, and dried. The product has a surface area of 300-1000 m<SP>2</SP>/gm. and a pore volume of 0À5-1À3 cc/gm., determined after heating at 538‹ C. for 3 hours, and a calculated pore volume of 30-450 Š.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1053824A true GB1053824A (en) |
Family
ID=1757790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1053824D Active GB1053824A (en) |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1053824A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4915923A (en) * | 1986-06-13 | 1990-04-10 | Mizusawa Industrial Chemicals, Ltd. | Filler for ink jet recording paper |
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0
- GB GB1053824D patent/GB1053824A/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4915923A (en) * | 1986-06-13 | 1990-04-10 | Mizusawa Industrial Chemicals, Ltd. | Filler for ink jet recording paper |
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