搜索结果: 1-15 共查到“calcium carbonate”相关记录17条 . 查询时间(0.125 秒)
Influence of the degree of soil organic matter lability on the calcium carbonate equilibrium of soil water
calcium carbonate equilibrium degree of lability liming need soil organic matter soil water
2015/3/2
In average samples of three sandy-loamy acid Cambisols from a South Bohemian area labile organic matters were determined by the permangate method modified by the dichromate method, and the rate consta...
The European calcium carbonate association
mineral calcium carbonate European calcium carbonate association
2012/3/6
The European calcium carbonate and dolomite producers established their own representation at EU level through CCA-Europe, a founding member of the Industrial Minerals Association Europe (IMA-Europe).
Effect of Langmuir monolayer of bovine serum albumin protein on the morphology of calcium carbonate
Biomineralization Crystal morphology Langmuir monolayer Bovine serum albumin Calcite
2011/9/13
Bovine serum albumin (BSA) Langmuir monolayer, as a model of biomineralization-associated proteins, was used to study its effect on regulated biomineralization of calcium carbonate. The effects of the...
Rare earth elements, Sr, Ba, Fe, and major cation concentrations in some living foraminiferal tests collected from Iriomote Island, Japan: An exploration for trace element behavior during biogenic calcium carbonate formation
foraminifera rare earth elements calcium carbonate partitioning biomineralization
2017/8/9
Rare earth elements (REE), Sr, Ba, Fe, Mg, Ca, Na, and K concentrations in three kinds of living foraminiferal tests collected from Iriomote Island, Japan were measured in order to obtain some qualita...
Mn/Cr relative sensitivity factors for synthetic calcium carbonate measured with a NanoSIMS ion microprobe
secondary ion mass spectrometry Mn-Cr chronology relative sensitivity carbonate isotope
2017/8/9
Mn/Cr relative sensitivities for a synthetic calcite and a terrestrial olivine (San Carlos olivine) were measured using spot and rasterized modes with a NanoSIMS ion probe. Counting rates of 43Ca+, 52...
Calcium carbonate precipitation induced by the growth of the marine cyanobacterium Trichodesmium
Calcium carbonate precipitation marine cyanobacterium Trichodesmium
2014/4/17
In this laboratory study, we monitored the buildup of biomass and concomitant shift in seawater carbonate
chemistry over the course of a Trichodesmium bloom under different phosphorus (P) availabilit...
Fabrication of carbonate apatite block based on internal dissolution-precipitation reaction of dicalcium phosphate and calcium carbonate
Carbonate apatite Dicalcium phosphate Calcium carbonate
2010/11/26
In this study, we investigated a novel method for fabrication of carbonate apatite block without ionic movement between precursor and solution by using precursor that includes all constituent ions of ...
Calcium carbonate saturation in the surface water of the Arctic Ocean:undersaturation in freshwater influenced shelves
Calcium carbonate saturation surface water Arctic Ocean freshwater influenced shelves
2010/1/21
In the summer of 2005, we sampled surface water and measured pH and total alkalinity (AT) underway aboard IB Oden along the Northwest Passage from Cape Farewell (South Greenland) to the Chukchi Sea. W...
EFFECT OF CALCIUM CARBONATE CONCRETIONS ON PHOSPHORUS AVAILABILITY TO THE CROPS
Triticum aestivum Zea mays Calcium carbonate phosphorus Pakistan
2009/9/30
A pot experiment was conducted at Soil Chemistry Section, Ayub Agricultural Research
Institute, Faisalabad during 2001-2003. Five treatments i.e. 0, 3, 6, 9 and 12 percent
CaCO
concretion (CCC) ...
Kinetics and mechanism of heterogeneous oxidation of sulfur dioxide by ozone on surface of calcium carbonate
Kinetics and mechanism heterogeneous oxidation sulfur dioxide calcium carbonate
2009/1/12
Sulfate particles play a key role in the air quality and the global climate, but the heterogeneous formation mechanism of sulfates on surfaces of atmospheric particles is not well established. Carbona...
Mass concentration and ion composition of coarse and fine particles in an urban area in Beirut: effect of calcium carbonate on the absorption of nitric and sulfuric acids and the depletion of chloride
Mass concentration effect of calcium carbonate absorption of nitric and sulfuric acids the depletion of chloride
2009/1/8
Levels of coarse (PM10-2.5) and fine (PM2.5) particles were determined between February 2004 and January 2005 in the city of Beirut, Lebanon. While low PM mass concentrations were measured in the rai...
Laboratory Scale Production of Commercial Grade Calcium Carbonate from Lime-Soda
Causticization Settle Volume Bulk Density Yield
2010/9/14
Quality precipitated calcium carbonate has much demand in various chemical and allied industries as filler, surface coating, whitening, adhesive etc. A study was carried out by modifying classical lim...
期刊信息
篇名
Dissolution Kintics of Calcium Carbonate Minerals in H2O-CO2 Solutions in Turbulent Flow:the role of the diffusion boundry layer and the solw reaction H2O+CO2←→H（+）HCO3
语种
英文
撰写或编译
作者
刘再华，W,Dr...
Characterization method of Limestone according to the Formation Age on manufacturing process of aragonite precipitated calcium carbonate
Characterization method Limestone the Formation Age manufacturing process aragonite calcium carbonate
2012/3/28
Korea has about 68 hundreds million tons of limestone's reserves. Still, high-Ca2+ limestone containing more than 52% calcium oxide makes up for about 12% only; hence the need for securing and effecti...
Manufacturing Characteristics of Precipitated Calcium Carbonate according to the Formation Age of Limestone
Manufacturing Characteristics Precipitated Calcium Carbonate Formation Age Limestone
2012/3/28
Limestone is abundant mineral that has occupied about 14% of the earth's crust and 20~30% of the sedimentary rock all over the world. As extensive distribution, limestone contains various minerals suc...