搜索结果: 1-12 共查到“工学 leaching”相关记录12条 . 查询时间(0.05 秒)
COMPARISON OF STANDARD PROCEDURES FOR ESTIMATION OF BIOCIDES LEACHING FROM IMPREGNATED WOOD
copper ingredients boron ingredients ethanolamine leaching montan wax Norway spruce wood
2009/11/27
Leaching of active ingredients from impregnated wood is one of the most frequently applied criteria for assessing the suitability of impregnated wood to be used in outdoor applications. For this purpo...
Influence of PVA emulsion on leaching of boron and copper from wood and efficacy on wood decay fungi
boron copper fixation Norway spruce PVA emulsion wood preservation
2009/11/27
Boron compounds are very effective fungicides, but they leach from wood in wet environments, unfortunately. In order to improve boron fixation, boric acid, borax and copper(II) sulphate were combined ...
LEACHING OF COPPER-ETHANOLAMINE BASED PRESERVATIVES FROM WOOD
wood preservation copper based preservatives amines ethanolamine fixation
2009/11/26
Copper-ethanolamine based preservatives are successfully replacing classical copper-chromium based preservative solutions. In this paper, the proposed
fixation mechanisms are described. Additiona...
Leaching Gold Using Oxidation Products of Elemental Sulfur in Ca(OH)2 Solution Under Oxygen Pressure
gold leaching alkaline solution oxygen pressure
2009/11/16
A gold leaching process by using in situ oxidation products of added elemental sulfur in Ca(OH)2 solution was investigated. A gold concentrate containing 45 g/t Au was tested and 85%~87% of gold were ...
Leaching of Silver from Boorchi Ag-Pb Ore in Mongolia with
silver thiourea leaching ammonia carbonate solution
2009/11/16
A hydrometallurgical process to extract silver from the silver-lead ore in Boorchi, Mongolia by using thiourea leaching solution is studied in this work. Through the observation of optical and scannin...
Recovery of Copper from Leaching Solution of Copper Smelting Ash
recovery copper copper smelting ash N902
2009/11/13
An efficient and reliable approach based on solvent extraction to selectively recover copper from leaching solution of Jinchuan copper smelting ash has been developed in this work. And the extraction ...
Investigation of Geochemical and Leaching Characteristics of Solid Wastes from Yeniköy (Muğla-Turkey) Power Plant
Bottom ash fly ash leachate solid waste thermal power plants
2009/10/13
The use of lignite in power generation has led to increasing environmental problems associated not only with gaseous emissions but also with the disposal of ash residues. In particular, the use of low...
Comparison of Two Leaching Tests to Assess the Effectiveness of Cement-Based Hazardous Waste Solidification/Stabilization
Heavy metals Leaching Mining waste Portland cement Solidification/stabilization
2009/10/12
The Turkish HazardousWaste Control Regulation (THWCR) recognizes solidi cation/stabilization (S/S) as a promising new technology for the safe disposal of hazardous wastes. In this study, the e ectiven...
Hot Filtration: A Way to Enhance the Recovery of Chromite in Sulfuric Acid Leaching,with or without the Addition of Perchloric Acid
Leaching Chromite Hexavalent chromium Sulfuric acid Perchloric acid
2009/10/9
Ahi gh grade chromite concentrate obtained from the Pınarba¸sı region of Kayseri province in Turkey was reacted with a solution of sulfuric acid and perchloric acid at atmospheric pres...
The widely used cyanidation technology is not
applicable to some gold ores due to economic or
technical reasons when the cyanidation gives very low
gold extractions. Despite the fact that the gold ...
The application of sufficient amounts of leaching water by means of an effective method is very important in the management and reclamation of saline and sodic soils. Reclamation cannot be achieved wi...
THE LEACHING BEHAVIOR OF ALDICAR AMONG COMPLEX POLLUTION SYSTEM COMPOSED OF SURFACTANT SDBS AND ALDICARB
aldicarb complex pollution system leaching sodium dodecylbenzenesulfonates soil
2013/12/12
The leaching behavior of aldicarb among the complex pollution system composed ofaldicarb and surfactant – sodium dodecylbenzenesulfonate (SDBS) was studied by soil column.Distilled water was used to s...