Feasibility Study For DeXing Copper Company's 200 Kt/a Phase Two Sulphuric Acid Project

Feasibility study for project is a kind of scientific approach to ensure construction project to gain best economic effect at lowest cost.And it's also a scientific approach to realize the said construction project to be based on advanced technology,optimized economic consideration and feasible way in construction.The writer of this paper conduct detailed investigation on social,economic,technical and other regarding information of DeXing copper company's 200 kt/a phase two sulphuric acid project.And performed seriously analysis and comparison to technical program and construction program,the writer also forecast and evaluate the economic benefit after construction of the project by using financial evaluation. national economic and social evaluation,uncertainty analysis,and risk analysis.Finally,the writer come to feasible conclusion for this project,provided reliable scientific reference for project investment.The Dexing copper company produces 100,000 tons of pyrite per year and makes impractical project,scale its for produce per year 100%H2SO₄71.424kt, 104.5%H₂SO₄28.704kt,annual activity duration is 8000h,the daily output is 300t.ore flotation sulphur concentrate,principal ingredients FeS₂,do ore suck sulphur 35%,enter sulphur concentrate moisture 7.5%of stove.Adopt the already ripe oxidizing and roasting at present,pickle and purify," 3 +1 " is transformed twice,96%acid is dry,98%acid middle temperature is absorbed twic.Project this aftertax main economic indicator financial net present value(NPV)up to 24,641,100,financial affairs earning ratio is up to 20.21%,exceed base earnings ratio 10%,prove the economic benefits are better,there is better profit ability.