Critical to the origin of life are the ingredients of life, of course, but also the physical and
chemical conditions in which prebiotic chemical reactions can take place. These factors …

Herein, silver nanoparticles (Ag NPs), as an effective catalyst for the reduction process of
nitrobenzene derivatives to non-hazardous and useful aniline derivatives, are conveniently …

The main objective of this research was to investigate the oxidative destruction of free
cyanide with hydrogen peroxide and copper-impregnated pumice as a heterogeneous …

The context for the emergence of life on Earth sometime prior to 3.5 billion years ago is
almost as big a puzzle as the definition of life itself. Hitherto, the problem has largely been …

The present study deals with the synthesis of ZnO hollow spheres-pumice nanocomposite
via a hydrothermal method by employing pumice as the magnetic support. The …

A natural porous silica, pumice, was studied as heterogeneous catalyst in the
transesterification reaction of sunflower oil and frying oil with methanol for biodiesel …

3. R: 398 R E. Arias et al. A variety of methods and compositions are disclosed, includ
7,086.466 B2 8, 2006 E. al. ing, in one embodiment, a method of cementing in a Subter …

(51) Int. Cl. Disclosed are lost circulation treatment fluids and methods C09K 8/487(2006.01)
of sealing lost circulation Zones. Embodiments include a E2IB 33/13(2006.01) method of …

Microalgae has gained substantial attention as a promising feedstock for producing
biodiesel. In situ transesterification using a heterogeneous catalyst renders the conversion …

Disclosed herein are cement compositions and methods of using set-delayed cement
compositions in Subterranean for mations. In one embodiment a method of plugging a …