GB1116664A - Process for preparing a coated zeolitic molecular sieve agglomerate - Google Patents
Process for preparing a coated zeolitic molecular sieve agglomerateInfo
- Publication number
- GB1116664A GB1116664A GB1799465A GB1799465A GB1116664A GB 1116664 A GB1116664 A GB 1116664A GB 1799465 A GB1799465 A GB 1799465A GB 1799465 A GB1799465 A GB 1799465A GB 1116664 A GB1116664 A GB 1116664A
- Authority
- GB
- United Kingdom
- Prior art keywords
- agglomerates
- molecular sieve
- solution
- mesh
- size
- 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
- 239000002808 molecular sieve Substances 0.000 title abstract 5
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 title abstract 5
- 238000004519 manufacturing process Methods 0.000 title 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 12
- 239000000377 silicon dioxide Substances 0.000 abstract 4
- 239000007787 solid Substances 0.000 abstract 4
- 239000000243 solution Substances 0.000 abstract 4
- 239000000463 material Substances 0.000 abstract 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 abstract 2
- 238000013019 agitation Methods 0.000 abstract 2
- 229910052910 alkali metal silicate Inorganic materials 0.000 abstract 2
- 239000007864 aqueous solution Substances 0.000 abstract 2
- 239000010425 asbestos Substances 0.000 abstract 2
- 229960000892 attapulgite Drugs 0.000 abstract 2
- 239000011230 binding agent Substances 0.000 abstract 2
- 229910052792 caesium Inorganic materials 0.000 abstract 2
- 239000004927 clay Substances 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 abstract 2
- 238000000576 coating method Methods 0.000 abstract 2
- 229910052681 coesite Inorganic materials 0.000 abstract 2
- 239000008119 colloidal silica Substances 0.000 abstract 2
- 229910052906 cristobalite Inorganic materials 0.000 abstract 2
- 210000003298 dental enamel Anatomy 0.000 abstract 2
- 239000002274 desiccant Substances 0.000 abstract 2
- 239000006185 dispersion Substances 0.000 abstract 2
- 238000010304 firing Methods 0.000 abstract 2
- 239000010445 mica Substances 0.000 abstract 2
- 229910052618 mica group Inorganic materials 0.000 abstract 2
- 229910052625 palygorskite Inorganic materials 0.000 abstract 2
- 229910052700 potassium Inorganic materials 0.000 abstract 2
- 229910052895 riebeckite Inorganic materials 0.000 abstract 2
- 150000004760 silicates Chemical class 0.000 abstract 2
- 235000012239 silicon dioxide Nutrition 0.000 abstract 2
- 229910052708 sodium Inorganic materials 0.000 abstract 2
- 238000005507 spraying Methods 0.000 abstract 2
- 229910052682 stishovite Inorganic materials 0.000 abstract 2
- 229910052905 tridymite Inorganic materials 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
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
- B01J20/02—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
- B01J20/16—Alumino-silicates
- B01J20/18—Synthetic zeolitic molecular sieves
- B01J20/183—Physical conditioning without chemical treatment, e.g. drying, granulating, coating, irradiation
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
Molecular sieve agglomerates are coated with a finely divided silica-containing material, impregnated with an aqueous solution of an alkali metal silicate, and fired at 650-1220 DEG F. The molecular sieve may be naturally occurring (examples given) or synthetic, e.g. A, T, X, Y, and is agglomerated alone or with water and 5-35% of a binder, e.g. silicates and/or clays (examples given), to give spheres of size 8-12 mesh. The coating may be from 1 to 0.003 in. thick, and may be of clay, e.g. attapulgite (others are listed), asbestos, mica, quartz glass frits or enamels, preferably less than 300 mesh in size. It is applied to the damp agglomerates by tumbling together, or by spraying with an aqueous dispersion. The impregnant may be Na, K, Li, Rb or Cs silicate with a M2O/SiO2 weight ratio of 0.27-0.63 and a solids content of 3-35 wt. per cent, and may contain colloidal silica. Contact, with 0.07-0.73 pts. solution solids per pt. agglomerate, may be effected at below 60 DEG C. either batchwise with agitation, or continuously by percolating the solution through the agglomerates. The agglomerates may then be dried at 180-350 DEG F. to a moisture content of 15-22% b.w. before firing. The product is used as a desiccant. Reference has been directed by the Comptroller to Specification 972,833.ALSO:A desiccant material comprises molecular sieve agglomerates coated with a finely divided silica-containing material, impregnated with an aqueous solution of an alkali metal silicate, and fired at 650-1220 DEG F. The molecular sieve may be naturally occurring (exs. given) or synthetic, e.g. A, T, X, Y, and is agglomerated alone or with water and 5-35% of a binder, e.g. silicates and/or clays (exs. given), to give spheres of size 8-12 mesh. The coating may be from 1 to .003 ins. thick, and may be of clay e.g. attapulgite (others are listed), asbestos, mica, quartz glass frits or enamels, preferably less than 300 mesh (U.S.S.) in size. It is applied to the damp agglomerates by tumbling together, or by spraying with an aqueous dispersion. The impregnant may be Na, K, Li, Rb or Cs silicate with a M2O/SiO2 weight ratio of 0.27-0.63 and a solids content of 3-35 wt. %, and may contain colloidal silica. Contact, with 0.07-0.73 pts. solution solids per pt. agglomerate, may be effected at below 60 DEG C either batchwise with agitation, or continuously by percolating the solution through the agglomerates. The agglomerates may then be dried at 180-350 DEG F to a moisture content of 15-22% b.w. before firing. Reference has been directed by the Comptroller to Specification 972833.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US36398564A | 1964-04-30 | 1964-04-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1116664A true GB1116664A (en) | 1968-06-12 |
Family
ID=23432561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1799465A Expired GB1116664A (en) | 1964-04-30 | 1965-04-29 | Process for preparing a coated zeolitic molecular sieve agglomerate |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1567863B2 (en) |
| GB (1) | GB1116664A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998030324A3 (en) * | 1997-01-10 | 1998-11-05 | Advanced Minerals Corp | Filterable composite adsorbents |
| US6712974B1 (en) | 1997-01-10 | 2004-03-30 | Advanced Minerals Corporation | Filterable composite adsorbents |
| EP1370491B2 (en) † | 2001-02-26 | 2010-06-16 | Solvay (Societe Anonyme) | Abrasion-resistant agglomerate mineral substance granule, powder comprising such granules and production method therefor |
| WO2013045902A1 (en) | 2011-09-28 | 2013-04-04 | Guy's And St. Thomas' Nhs Foundation Trust | Predicting thiopurine hypermethylation |
-
1965
- 1965-04-29 GB GB1799465A patent/GB1116664A/en not_active Expired
- 1965-04-29 DE DE19651567863 patent/DE1567863B2/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998030324A3 (en) * | 1997-01-10 | 1998-11-05 | Advanced Minerals Corp | Filterable composite adsorbents |
| US6712974B1 (en) | 1997-01-10 | 2004-03-30 | Advanced Minerals Corporation | Filterable composite adsorbents |
| EP1370491B2 (en) † | 2001-02-26 | 2010-06-16 | Solvay (Societe Anonyme) | Abrasion-resistant agglomerate mineral substance granule, powder comprising such granules and production method therefor |
| WO2013045902A1 (en) | 2011-09-28 | 2013-04-04 | Guy's And St. Thomas' Nhs Foundation Trust | Predicting thiopurine hypermethylation |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1567863A1 (en) | 1971-03-04 |
| DE1567863B2 (en) | 1971-10-07 |
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