The Crystallography of Compounds in the Calcium Oxide-Niobium Pentoxide System

1960 ◽  
pp. 97-106 ◽  
Author(s):  
John F. Rowland ◽  
Norman F. H. Bright ◽  
Arnout Jongejan
Keyword(s):  
Calcium Oxide ◽  
Niobium Pentoxide

The crystallography of compounds in the calcium oxide-niobium pentoxide system

1959 ◽  
Author(s):  
J F Rowland ◽  
N F H Bright ◽  
A Jongejan
Keyword(s):  
Calcium Oxide ◽  
Niobium Pentoxide

The Crystallography of Compounds in the Calcium Oxide-Niobium Pentoxide System

1958 ◽  
Vol 2 ◽  
pp. 97-106 ◽  
Author(s):  
John F. Rowland ◽  
Norman F. H. Bright ◽  
Arnout Jongejan
Keyword(s):  
Single Crystal ◽  
Calcium Oxide ◽  
Powder Diffraction ◽  
Niobium Pentoxide ◽  
Optical Data ◽  
X Ray ◽  
System A

AbstractIn the course of work, on the CaO-Nb205-Si02 System, a series of compositions on the Ca0-Nb2-05 binary join has been studied. There are indications of the existence of three calcium niobates. These compounds have been characterized by X-ray powder diffraction and optical data. Single crystal studies have given information concerning the crystallography of these materials.

Recalcification of Carious Lesion with Aids of Calcium Oxide Nanoparticles

2020 ◽  
Vol 23 (12) ◽  
Author(s):  
Bushra Habeeb Al-Maula ◽  
Suhad Jabbar Al-Nasrawi ◽  
Alaa Dakhil Yassir ◽  
Abtesam Imhemed Aljdaimi ◽  
Ruba Mansour Mustafa ◽  
...  
Keyword(s):  
Calcium Oxide ◽  
Oxide Nanoparticles ◽  
Carious Lesion

scholarly journals Effects of polycarboxylate ether (PCE)-based superplasticizer on the dissolution and subsequent hydration of calcium oxide (CaO)

2021 ◽  
Vol 146 ◽  
pp. 106467
Author(s):  
Sung-Hoon Kang ◽  
Minkyeong Kwon ◽  
Yang-Hee Kwon ◽  
Juhyuk Moon
Keyword(s):  
Calcium Oxide ◽  
Polycarboxylate Ether

scholarly journals Improvement of Ni/Al2O3 Catalysts for Low-Temperature CO2 Methanation by Vanadium and Calcium Oxide Addition

2021 ◽  
Author(s):  
Gabriella Garbarino ◽  
Paweł Kowalik ◽  
Paola Riani ◽  
Katarzyna Antoniak-Jurak ◽  
Piotr Pieta ◽  
...  
Keyword(s):  
Low Temperature ◽  
Calcium Oxide ◽  
Co2 Methanation ◽  
Oxide Addition

scholarly journals An Overview of Biodiesel Production via Calcium Oxide Based Catalysts: Current State and Perspective

Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3950
Author(s):  
Hoora Mazaheri ◽  
Hwai Chyuan Ong ◽  
Zeynab Amini ◽  
Haji Hassan Masjuki ◽  
M. Mofijur ◽  
...  
Keyword(s):  
Heterogeneous Catalysis ◽  
Calcium Oxide ◽  
Heterogeneous Catalysts ◽  
Low Cost ◽  
Biodiesel Production ◽  
Catalyst Synthesis ◽  
Process Improvements ◽  
Current State ◽  
The Common ◽  
Activity Mechanism

Biodiesel is a clean, renewable, liquid fuel that can be used in existing diesel engines without modification as pure or blend. Transesterification (the primary process for biodiesel generation) via heterogeneous catalysis using low-cost waste feedstocks for catalyst synthesis improves the economics of biodiesel production. Heterogeneous catalysts are preferred for the industrial generation of biodiesel due to their robustness and low costs due to the easy separation and relatively higher reusability. Calcium oxides found in abundance in nature, e.g., in seashells and eggshells, are promising candidates for the synthesis of heterogeneous catalysts. However, process improvements are required to design productive calcium oxide-based catalysts at an industrial scale. The current work presents an overview of the biodiesel production advancements using calcium oxide-based catalysts (e.g., pure, supported, and mixed with metal oxides). The review discusses different factors involved in the synthesis of calcium oxide-based catalysts, and the effect of reaction parameters on the biodiesel yield of calcium oxide-based catalysis are studied. Further, the common reactor designs used for the heterogeneous catalysis using calcium oxide-based catalysts are explained. Moreover, the catalytic activity mechanism, challenges and prospects of the application of calcium oxide-based catalysts in biodiesel generation are discussed. The study of calcium oxide-based catalyst should continue to be evaluated for the potential of their application in the commercial sector as they remain the pivotal goal of these studies.

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