Microstructure and properties of the sintered composites from zeolite 4A and magnesium oxide

David, Elena; Stanciu, Vasile; Stefanescu, Doina; Nicolae, Andrei

doi:10.1016/s0924-0136(01)00949-9

Search citation statements

Order By: Relevance

Paper Sections

Select...

Introduction1

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2004

2010

Publication Types

Select...

Article4

Relationship

Self Cite0

Independent4

Authors

Journals

Cited by 4 publications

(1 citation statement)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The zeolite 4A extrudate samples were converted to 5A type through ion exchange using calcium chloride solution. David [6] et al obtained zeolite 4A from the mixture of sodium silicate, sodium aluminate, solium hydroxide, water and natural kaolin by uniform mixing. Chandrasekhar [7] et al systematically studied the calcium exchange of kaolin based zeolites A and X.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of zeolite 4A from soft kaolin

Yan

2010

Desalination and Water Treatment

View full text Add to dashboard Cite

A B S T R AC TThe synthesis of zeolite 4A from soft kaolin has been studied. Kaolin was converted to metakaolin by fi ring at 550 °C for 2 h, which was then added to NaOH solutions of appropriate concentration. The optimum molar ratios for the main constituents in the starting gel were SiO 2 /Al 2 O 3 = 1.7, Na 2 O/SiO 2 = 2.8 and H 2 O/Na 2 O = 61.7. The gels were vigorously stirred at 70 °C for 2 h and aged under the room temperature for 24 h, then stirred again with intermediate speed at 90 °C. After 4 h, the product was centrifugated and washed till pH 10∼11. Examination with XRD, IR and SEM proved that the product was zeolite 4A.

show abstract

Section: Introductionmentioning

confidence: 99%