DK18981A - PROCEDURE FOR PREPARING CRYSTALLINIC SILICO ALUMINATES OF TYPE A, ISAER TYPE 4A, AND WITH HIGH WATER RECOVERY CAPACITY - Google Patents

PROCEDURE FOR PREPARING CRYSTALLINIC SILICO ALUMINATES OF TYPE A, ISAER TYPE 4A, AND WITH HIGH WATER RECOVERY CAPACITY

Info

Publication number
DK18981A
DK18981A DK18981A DK18981A DK18981A DK 18981 A DK18981 A DK 18981A DK 18981 A DK18981 A DK 18981A DK 18981 A DK18981 A DK 18981A DK 18981 A DK18981 A DK 18981A
Authority
DK
Denmark
Prior art keywords
type
temperature
high water
isaer
crystallinic
Prior art date
Application number
DK18981A
Other languages
Danish (da)
Inventor
B Latourrette
Original Assignee
Rhone Poulenc Ind
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9237631&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DK18981(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Rhone Poulenc Ind filed Critical Rhone Poulenc Ind
Publication of DK18981A publication Critical patent/DK18981A/en

Links

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)
    • C01B33/2823—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) from aqueous solutions of an alkali metal aluminate and an alkali metal silicate excluding any other source of alumina or silica

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)
  • Catalysts (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Saccharide Compounds (AREA)
  • Silicon Compounds (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)

Abstract

1. A process for producing a zeolite of type A with a high water absorption capacity, with an SiO2 / AI2 O3 molar ratio higher than 1.85 and advantageously at least equal to 2, characterized in that : (a) a mixture of solutions of sodium aluminate and silicate is made from a solution of aluminate which is advantageously cooled at from -10 to +10 C, and a solution of silicate, at a temperature such that the temperature of the resulting medium is substantially lower than the ambient temperature, with sufficient agitation being maintained to permit the formation of a homogenous solution having the appearance of a gel and with the molar ratio in the reaction medium being maintained at a value which is at least equal to 1.85 ; (b) the temperature of the reaction medium is raised to a value in the range of from 60 to 100 C ; (c) the medium is maintained at that temperature for a sufficient period of time of from 0.2 to 5 h, so as to cause crystallisation and redispersion of the silicoaluminate in the form of suspension of crystals in the liquid phase, and (d) the resulting crystals are separated and dried.
DK18981A 1980-01-18 1981-01-16 PROCEDURE FOR PREPARING CRYSTALLINIC SILICO ALUMINATES OF TYPE A, ISAER TYPE 4A, AND WITH HIGH WATER RECOVERY CAPACITY DK18981A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8001046A FR2474014A1 (en) 1980-01-18 1980-01-18 NOVEL PROCESS FOR OBTAINING A TYPE A CRYSTALLINE SILICO-ALUMINATE WITH HIGH WATER RETENTION, AND IN PARTICULAR TYPE 4A, AND PRODUCT SO OBTAINED

Publications (1)

Publication Number Publication Date
DK18981A true DK18981A (en) 1981-07-19

Family

ID=9237631

Family Applications (1)

Application Number Title Priority Date Filing Date
DK18981A DK18981A (en) 1980-01-18 1981-01-16 PROCEDURE FOR PREPARING CRYSTALLINIC SILICO ALUMINATES OF TYPE A, ISAER TYPE 4A, AND WITH HIGH WATER RECOVERY CAPACITY

Country Status (12)

Country Link
EP (1) EP0032854B1 (en)
JP (1) JPS56140024A (en)
AT (1) ATE4695T1 (en)
BR (1) BR8100257A (en)
CA (1) CA1153749A (en)
DE (1) DE3160890D1 (en)
DK (1) DK18981A (en)
ES (1) ES498553A0 (en)
FI (1) FI810132L (en)
FR (1) FR2474014A1 (en)
NO (1) NO810143L (en)
PT (1) PT72364B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2161109B1 (en) * 1998-05-29 2002-06-16 Consejo Superior Investigacion Production of zeolites from waste, for use in detergents consists of mixing of pickling liquors with caustic soda and silicate for nucleation and crystallisation
JP4921097B2 (en) * 2006-09-29 2012-04-18 ダイコク電機株式会社 Amusement machine equipment

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3674426A (en) * 1966-09-28 1972-07-04 Asahi Denka Kogyo Kk Process for producing crystalline zeolite a
FR1536947A (en) * 1967-03-01 1968-09-02 Mines Domaniales De Potasse Synthetic zeolites and their manufacturing process
FR2384716A2 (en) * 1977-03-25 1978-10-20 Rhone Poulenc Ind Silico-aluminate(s) esp. for use in washing powders - with higher cation exchange power and less incrustation
FR2376074A1 (en) * 1976-12-30 1978-07-28 Rhone Poulenc Ind Silico-aluminate(s) esp. for use in washing powders - with higher cation exchange power and less incrustation
GB2005653A (en) * 1977-10-12 1979-04-25 Pq Corp Preparing zeolites

Also Published As

Publication number Publication date
FR2474014B1 (en) 1981-12-11
CA1153749A (en) 1983-09-13
FI810132L (en) 1981-07-19
EP0032854B1 (en) 1983-09-21
NO810143L (en) 1981-07-20
JPS56140024A (en) 1981-11-02
BR8100257A (en) 1981-08-04
ATE4695T1 (en) 1983-10-15
FR2474014A1 (en) 1981-07-24
ES8201105A1 (en) 1981-12-01
DE3160890D1 (en) 1983-10-27
EP0032854A1 (en) 1981-07-29
ES498553A0 (en) 1981-12-01
PT72364B (en) 1981-12-18
PT72364A (en) 1981-02-01

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Legal Events

Date Code Title Description
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