Results 101 to 110 of about 3,253 (216)

Study on Adsorption Characteristics of Ni (II) by Palygorskite

open access: yes, 2010
Adsorption characteristics of Ni (II) by Palygorskite were investigated using a batch adsorption, and the effects of various experimental parameters were discussed.
Zheng Wang   +3 more
core   +1 more source

Microstructure and palygorskite neoformation in pedogenic calcretes of central Morocco

open access: yes, 2021
The aim of this research was the micromorphological and mineralogical characterization of calcrete outcrops located in central Morocco, with particular focus on microstructure development and palygorskite formation processes.
Zucca, Claudio
core  

Exploration of cephalexin adsorption mechanisms onto bauxite and palygorskite and regeneration of spent adsorbents with cold plasma bubbling

open access: yesApplied Water Science
The aim of the present study was the direct comparison of two popular minerals, bauxite and palygorskite, as adsorbents for the removal of cephalexin (CPX) from aqueous solutions and the regeneration of the spent adsorbents through cold atmospheric ...
S. Giannoulia   +2 more
doaj   +1 more source

Kinetics of palygorskite hydrolysis in dilute salt solutions

open access: yes, 2000
Five palygorskite samples with different chemical compositions and specific surface areas (SSA) were used for this study. Batch experiments in dilute salt solutions under neutral conditions were conducted to study the kinetics of clay hydrolysis.
A. Singer, A. Neaman
core   +1 more source

Palygorskite from Tertiary Formations of Eastern Saudi Arabia.

open access: yes, 1985
The occurrence of palygorskite in some Tertiary sediments in eastern Saudi Arabia was studied. Mineralogical analyses were made of samples from two sections several meters thick from the Umm er Radhuma and Dammam Formations of Paleocene and Eocene ...
E. Shadfan   +3 more
core  

Microstructure and palygorskite neoformation in pedogenic calcretes of central Morocco

open access: yes, 2018
The aim of this research was the micromorphological and mineralogical characterization of calcrete outcrops located in central Morocco, with particular focus on microstructure development and palygorskite formation processes.
Kadir S.   +6 more
core   +1 more source

Maya Blue and Palygorskite: A Second Possible Pre-Columbian Source

open access: yes, 2005
Maya Blue is an unusual blue pigment used on pottery, sculpture, and murals from the Preclassic to the Colonial period. Until the late 1960s, its composition was unknown, but chemists working in Spain, Belgium, Mexico, and the United States identified ...
Arnold, Dean E.
core   +1 more source

Palygorskite: Crystallochemistry by Spectroscopy

open access: yes, 2009
Εργο Παροχής Ερευνητικών ...
Chryssikos, Georgios D.   +1 more
openaire   +1 more source

Palygorskite Clays in Marine Sediments: Records of Extreme Climate.

open access: yes, 2011
International audiencePalygorskite clay is a natural enrichment of the minerals palygorskite and sepiolite. These magnesium-bearing, fibrous clay minerals are rare and inhomogeneously distributed, except in arid-climate soils and lacustrine deposits ...
Médard Thiry   +3 more
core   +1 more source

The Occurrence of Pedogenic Palygorskite (Attapulgite) in Saudi Arabia.

open access: yes, 1979
Pedogenic palygorskite is formed in oases soils in the eastern province of Alhsas. The pedogenesis of palygorskite is indicated by the fact that this clay mineral could not be detected in an ancient red bed (Miocene or Pliocene) believed to be the soil ...
M. M. Aba-Husayan   +2 more
core  

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