Abstract Bentonite from Iraq was the clay of choice for this study (Calcium base). The “State Company Geological Survey and Mining” provided rock, which altered using Activation by Heat Acid. activation involved calcination at 400 Celsius, whereas chemical H 2 SO 4 . Analysis utilizing XRD, BET, FTIR on bentonite before after Activation. Adsorption kinetics isotherm were analyzed to assess whet...

Soils represent an important filter and buffer system for many cations and anions. Generally, their sorption properties are determined by the contents and compositions of clay minerals and humic substances. A great part of the soil organic matter is associated with clay minerals forming organomineral complexes (Greenland, 1965) which are of pronounced importance with respect to element transpor...

CTMA-bentonite and BTEA-Bentonite prepared by Na-bentonite cation exchanged with cetyltrimethylammonium(CTMA) and benzyltriethylammonium (BTEA). Products were characterized by XRD and IR techniques.The d001 spacing value of CTMA-bentonite and BTEA-bentonite are 7.54Å and 3.50Å larger than that of Na-bentonite at 100% cation exchange capacity, respectively. The IR spectrum showed that the intens...

Some unwanted inorganic materials, such as alkaline compounds contained in biomass, have the potential to create slagging formations with oxide from either inside or outside bubbling fluidized bed (BFB). The process involved 88-125 µm silica sand and clay (bentonite) particles during pyrolysis KCl addition at 700°C represent biomass under superficialN 2 -velocity operation. Agglomeration format...

Organomodified bentonites were obtained by modification of bentonite clay from local mine Bogovina, with four different alkylammonium ions in the amounts that correspond to cation exchange capacity. Carbonized bentonites, pyrolyzing organomodified flow nitrogen, characterized using XRD, low-temperature N2 physisorption and Raman spectroscopy. Structural textural properties carbonized depended o...

Ž In this work, a pharmaceutical preformulation study of four Spanish clays two sepiolites, one . palygorskite and one bentonite is presented, comparing the results obtained with those of three mineral products currently used in pharmaceutical technology. The results showed that the mineralogical and chemical purity of these clays is similar and even higher than that of the three commercial pro...

Currently, approximately 70-80 % of casting production of ferrous alloys is done with sands containing bentonite (green sands). Information on an amount of active bentonite in moulding sands, after shakeout of casting, is necessary in the rebounding process of bentonite sands – under real casting house conditions. It decides how much of fresh bentonite should be added to moulding sands, thereby...

The swelling behaviour of expansive clays is strongly related to the interaction between clay particles. In this paper, a series constant-volume pressure and mercury intrusion porosimetry (MIP) tests were carried out on MX80 bentonite/Callovo-Oxfordian (COx) claystone mixtures with different bentonite fractions dry densities. Results show that increased linearly increase in density. Additionall...