nodizing is a conventional surface treatment technology is the use of electrochemical methods， in the corresponding electrolyte and specific process conditions， using metal or metal alloy as anode， stainless steel， iron or nickel as the cathode， through the external current， metal or metal alloy surface layer of stable oxide film Generated oxide film can improve the substrate surface corrosion resistance， wear resistance and Before anodizing， the use of mechanical or compound solution on the surface of the metal and alloy oil and rust According to the different anodizing electrolyte can be divided into different categories， mainly sulfuric acid anodic oxidation， anodic oxidation of oxalic acid， chromic acid anodizing and hard anodizing law， under different acidic conditions can be anodized with different performance Using natural hair color， electrolysis color coloring or dye impregnation method for coloring anodic oxide After coloring the micro pores of the oxide film to be closed， after the closure of the treated surface becomes uniform without holes， the formation of dense oxide
Nitrate activation of response surface methodology directly blended activated carbon D-3RNL yellow dye absorption properties of College of Chemistry and Chemical Engineering， Chemical IM 072 Instructor: Abstract: In this paper， response surface optimization method of nitric acid directly activated carbon blended yellow D-3RNL adsorption performance of the adsorption time， initial concentration of dye solution， initial pH， adsorption temperature on the rate of decolorization， Optimization of the nitric acid dye adsorption on activated carbon decolorization of the best The results show that， pH dye absorption bleaching pairs have a significant impact; in the dye solution， the initial pH 2， initial dye concentration of 30mg / L， adsorption time was 16h， adsorption temperature is 40 ℃， when the activated carbon dosage 375g/25mL ， nitric acid directly activated carbon blended yellow D-3RNL the adsorption rate of 405% Key words: nitric acid activated carbon; directly blended yellow D-3RNL; adsorption; response surface;
Anodic oxidation is a traditional surface treatment technology， is using electrochemical method， in the corresponding electrolyte and special technology condition， with metal or metal alloy anode in stainless steel， iron， such as the cathode or nickel， through the impressed current， in metal or metal alloy surface produces a layer of stable oxidation film Generated oxidation film can improve the matrix surface corrosion resistance， abrasion resistance and Before the anodic oxidation， adopting mechanical method or compounds of metal and alloy surface solution clean oil and Anodic oxidation according to the different electrolyte can be divided into different kinds， basically have sulfuric acid anodic oxidation method， oxalic acid， anodic oxidation method， chromium acid anodic oxidation method and hard anodic oxidation method， different acid process conditions can get different property anodic oxidation Using natural hair color method， electrochemical coloring or dyes dipping color of anodic oxidation film method of Shading of oxidation film layer after the pore， shall be closed through closed surface become even without holes formed the oxide film，
Match the rare earth - ethyloic shell polyose compound take the ethyloic shell polyose and the rare-earth element as raw material， adsorbs best pH value and adsorption mechanism which they adsorb， utilizes the Lagergren two stage speed equations and Langmuir equation research adsorption The experimental result indicated that， in the acidic environment， the rare earth - ethyloic shell polyose compound has the good adsorption effect to the dye， the different rare earth - ethyloic shell polyose compound adsorption different dye has the different best pH The compound is fine to the dye adsorption effect， the percent of decolorization reaches above 84%， Gao Keda 45%Indicated to dynamics data analysis that， the compound is quick under the normal temperature to the dye adsorption speed， in 15min the percent of decolorization may reach above 80%， in 30min achieved basically the adsorption equilibrium， the adsorption tallies adsorbs two level of dynamic
