FR2386484A1 - Procede de preparation d'une zeolite de type a finement divisee - Google Patents
Procede de preparation d'une zeolite de type a finement diviseeInfo
- Publication number
- FR2386484A1 FR2386484A1 FR7810425A FR7810425A FR2386484A1 FR 2386484 A1 FR2386484 A1 FR 2386484A1 FR 7810425 A FR7810425 A FR 7810425A FR 7810425 A FR7810425 A FR 7810425A FR 2386484 A1 FR2386484 A1 FR 2386484A1
- Authority
- FR
- France
- Prior art keywords
- degrees
- preparing
- temperature
- finely divided
- type zeolite
- 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.)
- Withdrawn
Links
- 239000010457 zeolite Substances 0.000 title abstract 3
- 229910021536 Zeolite Inorganic materials 0.000 title abstract 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- 239000005995 Aluminium silicate Substances 0.000 abstract 2
- 235000012211 aluminium silicate Nutrition 0.000 abstract 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 abstract 2
- 239000003463 adsorbent Substances 0.000 abstract 1
- 229910001854 alkali hydroxide Inorganic materials 0.000 abstract 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 238000001027 hydrothermal synthesis Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
Classifications
-
- 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
- C01B33/20—Silicates
- C01B33/26—Aluminium-containing silicates, i.e. silico-aluminates
- C01B33/28—Base exchange silicates, e.g. zeolites
- C01B33/2807—Zeolitic silicoaluminates with a tridimensional crystalline structure possessing molecular sieve properties; Isomorphous compounds wherein a part of the aluminium ore of the silicon present may be replaced by other elements such as gallium, germanium, phosphorus; Preparation of zeolitic molecular sieves from molecular sieves of another type or from preformed reacting mixtures
- C01B33/2815—Zeolitic silicoaluminates with a tridimensional crystalline structure possessing molecular sieve properties; Isomorphous compounds wherein a part of the aluminium ore of the silicon present may be replaced by other elements such as gallium, germanium, phosphorus; Preparation of zeolitic molecular sieves from molecular sieves of another type or from preformed reacting mixtures of type A (UNION CARBIDE trade name; corresponds to GRACE's types Z-12 or Z-12L)
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
La présente invention concerne un procédé de préparation de zéolite A, présentant une taille de cristallite de 0,1 à 6 microns essentiellement, par réaction hydrothermique de kaolin calciné avec des hydroxydes alcalins aqueux. On disperse le kaolin dans un courant gazeux, porté à une température de 600 à 1 000 degrés C, et, après un temps de séjour dans ce courant gazeux de 0,01 à 5 secondes, on le met en suspension à une température supérieure à 300 degrés C dans une solution aqueuse contenant 4 à 20 % en poids d'hydroxyde de sodium et on maintient la suspension obtenue pendant 0,5 à 6 heures à une température de 70 à 100 degrés C. Les zéolites ainsi obtenues sont utiles en tant qu'adsorbants, par exemple pour sécher des liquides.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19772715934 DE2715934A1 (de) | 1977-04-09 | 1977-04-09 | Verfahren zur herstellung von feinteiligem zeolith a |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2386484A1 true FR2386484A1 (fr) | 1978-11-03 |
Family
ID=6006021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7810425A Withdrawn FR2386484A1 (fr) | 1977-04-09 | 1978-04-07 | Procede de preparation d'une zeolite de type a finement divisee |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS53125996A (fr) |
| BE (1) | BE865771A (fr) |
| BR (1) | BR7802172A (fr) |
| DE (1) | DE2715934A1 (fr) |
| ES (1) | ES468629A1 (fr) |
| FR (1) | FR2386484A1 (fr) |
| GB (1) | GB1571264A (fr) |
| IT (1) | IT7848796A0 (fr) |
| NL (1) | NL7803736A (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0004225A1 (fr) * | 1978-03-02 | 1979-09-19 | Rhone-Poulenc Chimie | Procédé de fabrication d'un silico-aluminate synthétique et produits obtenus |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3926400A1 (de) * | 1988-08-12 | 1990-02-22 | Degussa | Zeolithpulver des typs naa fuer die verwendung in fluessigwaschmitteln |
| EP0360547B1 (fr) * | 1988-09-20 | 1993-07-21 | WATTS BLAKE BEARNE & CO. PLC | Composition d'argile et procédé de coulée |
| GB2224725A (en) * | 1988-09-20 | 1990-05-16 | Watts Blake Bearne & Co Ltd | Ball clay products |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1264441A (fr) * | 1960-08-05 | 1961-06-19 | Grace W R & Co | Procédé de préparation de zéolites synthétiques cristallines |
| FR1343946A (fr) * | 1962-12-12 | 1963-11-22 | Grace W R & Co | Procédé de fabrication d'adsorbants microsélectifs et en particulier de zéolites au sodium |
| FR83942E (fr) * | 1963-06-10 | 1964-11-06 | Grace W R & Co | Procédé de fabrication d'adsorbants micro-sélectifs et en particulier de zéolites au sodium |
-
1977
- 1977-04-09 DE DE19772715934 patent/DE2715934A1/de active Pending
-
1978
- 1978-04-07 NL NL7803736A patent/NL7803736A/xx not_active Application Discontinuation
- 1978-04-07 FR FR7810425A patent/FR2386484A1/fr not_active Withdrawn
- 1978-04-07 JP JP4045078A patent/JPS53125996A/ja active Pending
- 1978-04-07 IT IT7848796A patent/IT7848796A0/it unknown
- 1978-04-07 BE BE2056853A patent/BE865771A/fr unknown
- 1978-04-07 ES ES468629A patent/ES468629A1/es not_active Expired
- 1978-04-07 BR BR787802172A patent/BR7802172A/pt unknown
- 1978-04-07 GB GB13734/78A patent/GB1571264A/en not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1264441A (fr) * | 1960-08-05 | 1961-06-19 | Grace W R & Co | Procédé de préparation de zéolites synthétiques cristallines |
| FR1343946A (fr) * | 1962-12-12 | 1963-11-22 | Grace W R & Co | Procédé de fabrication d'adsorbants microsélectifs et en particulier de zéolites au sodium |
| FR83942E (fr) * | 1963-06-10 | 1964-11-06 | Grace W R & Co | Procédé de fabrication d'adsorbants micro-sélectifs et en particulier de zéolites au sodium |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0004225A1 (fr) * | 1978-03-02 | 1979-09-19 | Rhone-Poulenc Chimie | Procédé de fabrication d'un silico-aluminate synthétique et produits obtenus |
Also Published As
| Publication number | Publication date |
|---|---|
| NL7803736A (nl) | 1978-10-11 |
| DE2715934A1 (de) | 1978-10-19 |
| BR7802172A (pt) | 1979-02-13 |
| BE865771A (fr) | 1978-10-09 |
| IT7848796A0 (it) | 1978-04-07 |
| ES468629A1 (es) | 1978-12-01 |
| JPS53125996A (en) | 1978-11-02 |
| GB1571264A (en) | 1980-07-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |