GB809756A - A process for compacting very finely particled solids with low bulk density - Google Patents
A process for compacting very finely particled solids with low bulk densityInfo
- Publication number
- GB809756A GB809756A GB36487/56A GB3648756A GB809756A GB 809756 A GB809756 A GB 809756A GB 36487/56 A GB36487/56 A GB 36487/56A GB 3648756 A GB3648756 A GB 3648756A GB 809756 A GB809756 A GB 809756A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bulk density
- less
- grinding
- roller
- compacting
- 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
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/0091—Preparation of aerogels, e.g. xerogels
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crushing And Grinding (AREA)
Abstract
The bulk density of silica, alumina, or calcium silicate aerogel, having a bulk density of 50 gm./l., or less, is increased by grinding under a reduced pressure of less than 160 mm. of Hg. Grinding may be effected in a ball, vibratory, edge, pendulum roller, ring roller or spring roller mill. Operation may be continuous or intermittent. The examples specify reduced pressures of 15-18 mm. for the production of bulk densities of 150-350 gm./l. in 12 min. 6 hrs. Specifications 721,866, [Group XVII], and 773,549 are referred to.ALSO:The bulk density of an aerogel, e.g. silica, alumina, or calcium silicate aerogel, having a bulk density of 50 gm/l or less is increased by grinding under a reduced pressure of less than 160 mm. of Hg. Grinding may be effected in a ball, vibratory, edge, pendulum roller, ring roller or spring roller mill. Operation may be continuous or intermittent. The examples specify reduced pressures of 15-18 mm. for the production of bulk densities of 150-350 gm./l in 12 min.-6 hrs. Specifications 721,866 [Group XVII] and 773,549 [Group III] are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE809756X | 1955-12-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB809756A true GB809756A (en) | 1959-03-04 |
Family
ID=6723400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB36487/56A Expired GB809756A (en) | 1955-12-02 | 1956-11-29 | A process for compacting very finely particled solids with low bulk density |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB809756A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111948095A (en) * | 2020-07-22 | 2020-11-17 | 电子科技大学 | Method for testing density of PZT aerogel |
-
1956
- 1956-11-29 GB GB36487/56A patent/GB809756A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111948095A (en) * | 2020-07-22 | 2020-11-17 | 电子科技大学 | Method for testing density of PZT aerogel |
| CN111948095B (en) * | 2020-07-22 | 2023-06-23 | 电子科技大学 | Method for testing density of PZT aerogel |
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