Crystalline Zeolites. I. The Properties of a New Synthetic Zeolite, Type A

Neisseria gonorrhoeae cells are effectively disrupted with a synthetic zeolite, type 4A. The soluble material released from gonococci contains antigen(s) which are involved in the immune response to gonorrhea in experimentally infected chimpanzees and are common to different gonococcal strains.

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Removal of zeolite type a during primary sedimentation and its effect on metal removal

Water Research ◽

10.1016/0043-1354(82)90141-5 ◽

1982 ◽

Vol 16 (7) ◽

pp. 1223-1232 ◽

Cited By ~ 6

Author(s):

A.C. Rossin ◽

R. Perry ◽

J.N. Lester

Keyword(s):

Metal Removal ◽

Type A ◽

Zeolite Type

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Monte Carlo Study of Thermal Desorption Curves of Water from Zeolite Type A†

Langmuir ◽

10.1021/la940689j ◽

1996 ◽

Vol 12 (1) ◽

pp. 36-39 ◽

Cited By ~ 7

Author(s):

J. R. Sánchez ◽

A. Palermo ◽

C. M. Aldao

Keyword(s):

Monte Carlo ◽

Thermal Desorption ◽

Monte Carlo Study ◽

Type A ◽

Zeolite Type

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Sedimentation of zeolite type A in water and waste water

Canadian Journal of Civil Engineering ◽

10.1139/l81-028 ◽

1981 ◽

Vol 8 (2) ◽

pp. 206-217 ◽

Cited By ~ 3

Author(s):

Manuel J. T. Carrondo ◽

Roger Perry ◽

John N. Lester

Keyword(s):

Waste Water ◽

Activated Sludge ◽

Suspended Solids ◽

Waste Water Treatment ◽

Type A ◽

Low Flow ◽

Column Tests ◽

Detergent Builder ◽

Zeolite Type ◽

Settling Column

A series of experiments was conducted to investigate the settling characteristics of zeolite type A, a non-phosphorus detergent builder, in water and waste water. The results obtained from settling column tests in water compared well with predictions made by applying Stokes' law to the particle size distribution curves, despite the nonsphericity of the particles Model sedimentation tank tests were undertaken and the removals at different overflow rates agreed closely with the predictions made from the column tests. Even at low flow rates zeolite type A removal in water was low.The percentage of suspended solids removed in static column tests using raw sewage was marginally reduced from the values obtained when zeolite type A was absent. Zeolite type A was removed to a lesser extent than the other suspended solids, particularly during the initial stages of the settling tests. In activated sludge pilot plant tests zeolite type A removal averaged 88%.Zeolite type A removals higher than 80% are anticipated in waste water treatment works comprising primary settling and secondary treatment by activated sludge; removals greater than 90% are regarded as probable.

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Enhancement the Octane Number of Sudanese Gasoline (Nile Blend)

International Letters of Chemistry Physics and Astronomy ◽

10.18052/www.scipress.com/ilcpa.48.184 ◽

2015 ◽

Vol 48 ◽

pp. 184-193

Author(s):

Sedahmed Osman ◽

Omar K. Duaij ◽

Kamal K. Taha

Keyword(s):

Octane Number ◽

Selective Adsorption ◽

Synthetic Zeolite ◽

Gas Separations ◽

Environment Impact ◽

Good Surface ◽

Zeolite Type ◽

Commercial Gasoline ◽

Interactive Surface ◽

Frame Work

Gasoline is one of most important sources of energy but when manufactured with low octane number may leave great risk that affect the human health and environment impact. Therefore processes of gasoline production must be developed. Zeolite material dependence on their extremely high frame work extended interactive surface, ability to interact with molecule and cations. They show a wide variety of interesting properties which result in remarkable applications in the fields of catalysts, gas separations, selective adsorption and water softening. Zeolite catalyst loaded with finely (Sr) metal have been used in hydro-cracking, catalytic cracking. The zeolite used is the synthetic zeolite (type Y) has high thermal stability, good surface area and its heterogeneous catalyst which can be separated after treatment and may be reactivated. The study of the octane number was carried out for this zeolite. The gasoline was obtained from market (commercial gasoline) it has octane number 91.7 determined by IROX-2000.The gasoline was treated by zeolite in the temperature about 331 Kelvin. The synthetic zeolite (type-Y) raised the octane number (from 91.7 to 92.4).

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