Results 31 to 40 of about 5,205 (220)

Synthesis And Characterization of Hydroxyapatite-Gibbsite [PDF]

, 2022
Hydroxyapatite (HAp) is a material that is often used in biomedical applications. However, this material has poor mechanical properties so that its use is still limited and needs to be modified by adding other materials to obtain better mechanical ...
arifiadi, Ferry; Balai Besar Keramik, Badan Standardisasi dan Kebijakan Jasa Industri, Kementerian Perindustrian Indonesia, Manullang, Ria Julyana; Balai Besar Kimia dan Kemasan, Wahyudi, Kristanto; Balai Besar Keramik, Nurhidayati, Nurhidayati; Balai Riset dan Standardisasi Industri Banjarbaru, Novianti, Hasna Rofifah; Univeristas Padjajaran   +4 more
core   +1 more source

Antisolvent gibbsite crystallisation from synthetic Bayer liquor [PDF]

, 2009
Includes bibliographical references (leaves 45-49).The current Bayer precipitation of gibbsite is notoriously slow and is considered to be the rate limiting step of the Bayer process.
Chiang, Yu-Lun
core   +1 more source

Zoned alternation of gibbsite and clay mInerals in the vermicular gibbsite [PDF]

, 1973
Vermicular gibbsite aggregates found in the weathered pumice layer (the Kurayoshi pumice) at Yotsuzuka, western part of Tottori Prefecture, range in size from 5 to lOmm (Fig.1).
Tazaki, Kazue
core   +1 more source

Cracking behaviour and mechanism at grain boundary of gibbsite during calcination

, 2020
Limiting the cracking of gibbsites during calcination can reduce the content of ultrafine particles in the smelter grade alumina product and increase the quality of products. However, the investigation on the cracking behaviour and mechanism of gibbsites
Ge, Lei, Zhang, Jinxuan, Zhu, Zhonghua, Chen, Zhi-Gang   +3 more
core   +1 more source

Relationship between macrofauna, mineralogy and exchangeable calcium and magnesium in Cerrado Oxisols under pasture Relações entre macrofauna, mineralogia, cálcio e magnésio trocáveis em Latossolos do Cerrado sob pastagem

Pesquisa Agropecuária Brasileira, 2009
The objective of this work was to assess the relationship between macrofauna, mineralogy and exchangeable calcium and magnesium in Cerrado Oxisols under pasture.
Pedro Rodolfo Siqueira Vendrame, Robélio Leandro Marchão, Osmar Rodrigues Brito, Maria de Fátima Guimarães, Thierry Becquer   +4 more
doaj   +1 more source

First discovery of gibbsite in Biryuzakan turquoise deposit, Northern Tajikistan

Известия высших учебных заведений: Геология и разведка
Background. In the quartz veins of the Biryuzakan turquoise deposit, a hydrothermal mineralization of varicolored gibbsite was discovered for the first time. The gibbsite varies from light- to dark blue in color, resembling turquoise. Aim.
Sh. T. Vosihov, A. K. Litvinenko, M. A. Rassomakhin   +2 more
doaj   +1 more source

The bauxite-bearing lateritic profile of the Jequié Complex, São Francisco Craton, Brazil: potential for rare earth elements mineralization and insights on the mineral system

Journal of the Geological Survey of Brazil, 2023
The Jequié Block is located at the northeastern portion of the São Francisco Craton and represents the Archean tectonic paleoplate that hosts the Jequié Complex.
Daniel Augusto de Miranda, Caroline Couto Santos, Fabrício Pereira dos Santos, Anderson Roque Araújo dos Santos Meneses, Carlos Magno Santos Clemente, Rita Oliveira, Isabel Leonor Iza Echeverria Herrera   +6 more
doaj   +1 more source

Development and Characterization of Gibbsite Component Simulant [PDF]

, 2009
According to Bechtel National, Inc.’s (BNI’s) Test Specification 24590-PTF-TSP-RT-06-006, Rev 0, "Simulant Development to Support the Development and Demonstration of Leaching and Ultrafiltration Pretreatment Processes," simulants for boehmite, gibbsite,
Rinehart, Donald E., Peterson, Reid A., Russell, Renee L., Smith, Harry D.   +3 more
core   +1 more source

Preparation of a Mesoporous Ceramic Adsorbent Based on Iranian Domestic Kaolin to Utilize as Slow-Release Urea Fertilizer Medium

Iranian Journal of Materials Science and Engineering, 2020
Overusing nitrogen fertilizer causes some serious problems for water resources, soil, and agriculture products. Researchers have been trying to develop effective means which may use less amount of fertilizers containing nitrogen.
S.M. Moussavi Janbesarayi, M. Mohebi, S. Baghshahi, S.A. Ahmad Alem, E. Irom   +4 more
doaj  

Perspectives of High‐Resolution Mass Spectrometry in Soil Science

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Soil biogeochemical research requires specific, sensitive, and accurate methods to identify and quantify organic molecules in order to trace biochemical processes and assess element cycling in complex, heterogenous systems. High‐resolution mass spectrometry (HRMS) has evolved into a transformative tool for unraveling the complex chemical ...
Bruno Glaser, Tobias Bromm, Klaus Kaiser, Arthur Gross, Carsten Simon, Snežana Maletić, Ines Mulder, Oliver J. Lechtenfeld, Sören Thiele‐Bruhn, Ivy Notterpek, Callum Banfield, Michaela A. Dippold   +11 more
wiley   +1 more source