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With aluminum sulfate aluminum sulfate residue of low iron

Energy, using this modified diatomaceous earth to produce urea efficiency Jing. It can make urea fertilizer increased to 110 days of the above, nitrogen use efficiency increased by 12% or more, by the user to reflect the production of urea synergist with the plant, the average yield 15 - 20% increase in per Muchunshouru 20 - 3O million. Is to improve efficiency and utilization of urea gills best way. Henan Science and Technology Commission to be included in the annual focus of the Spark Program 91. Be promoted. Synergist annual production capacity of urea plant of 1250 tons, 50,000 tons of urea market with units to use, equivalent to an additional 1.5 million tons of urea fertilizer plant. Eat more than 1,000 tons per year waste,[link widoczny dla zalogowanych], economic and environmental benefits, social benefits are very significant. With low iron aluminum sulfate aluminum sulfate residue of Xiao-Ying (Chiao ashamed City Chemical Plant) a long article on the strong bauxite production of aluminum sulfate for the original special produced by the amount of virtual Java too. An inspection carried out research searching. Made only a simple special virtual residue management and other processes of calcination North Sapporo can be made of virtual product sulfur li aluminum slag, friendship sticks of wood to be the pilot until the threshold where the industrial production. First, an overview of aluminum sulfate is mainly used for paper industry, water treatment, as agent and filler paper, rice paper to improve the strength of twenty to improve its water. The aluminum sulfate, the level of iron content in the finished product a great impact on the paper. In order to meet the requirements of the paper industry, many large domestic and foreign manufacturers of aluminum sulfate, iron technology have made a lot of experimental work. The United States has carried out from the clay of aluminum sulfate, iron. Extraction by Amine cut down the iron content of O. O1 g / liter. China produced one of the largest manufacturers of acid plant in Zibo, Shandong, had adopted a low-carbon iron test gland extraction of fatty acids, but not put into industrial production. Our factory 40,000 tons / year of aluminum sulfate system, to produce 1 ton of refined aluminum sulfate residue will emit 9.3 tons, the annual emissions of 12,000 tons (iron slag than bauxite low iron content). Can the aluminum production of iron slag were higher than the birds through the aluminum sulfate. Whether the process works, whether it is economically worthwhile and needed further investigation. So. Be the first aluminum residue in the lab for study of aluminum sulfate LC \analysis of alumina and iron oxide component 2, cut waste calcined aluminum sulfate; exposed the ugly 27 * v provision of the chemical composition of alumina A12Oa oxide content of forging FeIO8 ah l9 ~ 22.730.3 ~ 9.6 can be seen under the vinegar calcination at different temperatures. Alumina from bauxite leaching rate is also different. Temperature of 65O �� - 700 ~ 3, the leaching rate is highest. Therefore, the temperature should be selected in the 650 ~? 00 �� calcined the news. Heat 2 hours. 3, the atmospheric reaction: this experiment simulates the process of aluminum sulfate. Raw material of aluminum sulfate residue, to do with the sulfuric acid decomposition, generating equation for the reaction of aluminum sulfate A12Os +3 H2SO. = A12 (SO.) 3 +3 H2O steps; juveniles take 1,000 grams of aluminum residue,[link widoczny dla zalogowanych], add 780 grams of sulfuric acid 58 cracking, add a certain amount of water boiled on a hot plate for 2 hours. Reaction. L-fold dilution of the volume, add a hum Yu Ming cavity precipitation. Supernatant after precipitation filtration, washing to the total volume of 6730 ml clear liquid. The clear liquid to evaporate, stirring constantly. Heat 2 h, the reaction continuously Park when water temperature reached 116 ��, the plate into a paste and pour it into the crystal. Derived products of aluminum sulfate. Third, the experimental results after several repeated tests,[link widoczny dla zalogowanych], aluminum sulfate, analytical data products women �� following table. Power can be seen from the experimental results, product temperature aluminum sulfate oxygen (. C) never lead oxide solution basicity properties of iron oxide sample number (Allos) hiss (Fe �� OO Pa 1 �� 17450, lBO.850.0452} 16 .650.13 O.780.127315.710.O9 neutral low iron content of 0.10, about 0.13 cracking. proved. is to achieve product quality targets of aluminum sulfate. IV-benefit analysis of my factory production situation, production consumes 1 ton of aluminum sulfate 500kgs0 ~'s bauxite, buy 1 ton of bauxite 25 yuan, Raymond machine grinding discount for the l1 yuan, totaling 23.5; if production of aluminum slag do not need to purchase and crushed aluminum sulfate. simply look to calcined aluminum slag, so that waste both treated, but also save the costs, economic benefits will be considerable. V. Conclusion trial period to prove that the use of aluminum sulfate do low-iron aluminum sulfate residue on the process is feasible,[link widoczny dla zalogowanych], the quality indicators to meet the needs of paper industry,[link widoczny dla zalogowanych], and reduce plant emissions. if based on small scale, then the pilot. until it can expand production. entirely feasible.
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