Copper sulfate (CuSO4·H2O) is an important feed additive that mainly provides poultry with the necessary trace element copper. Copper is essential for hemoglobin synthesis, nervous system development and immune system function in animals.
Production process overview
Raw material preparation: Use copper-containing ores, such as pyrolusite or copper ore, and sulfuric acid as raw materials.
Roasting reduction: Mix the ore with pulverized coal and roast it at high temperature to produce copper oxide or copper sulfate.
Sulfuric acid leaching: The roasted copper oxide reacts with sulfuric acid to generate soluble copper sulfate.
Impurity removal: By adding iron remover and manganese dioxide powder as oxidants, impurities such as Ca, Mg, Fe, Al, etc. in the solution are precipitated and removed.
pH adjustment: Control the pH value of the acidification solution to promote the hydrolysis of Fe2(SO4)3 and Al2(SO4)3 into hydroxide precipitation.
Crystallization and purification: Cool the solution to crystallize copper sulfate, and obtain a high-purity copper sulfate solution by standing and filtering.
Drying and crushing: Concentrate the solution and dry it to obtain copper sulfate crystals, which are then crushed into powder of suitable particle size.
Quality testing: Conduct quality testing on products to ensure compliance with feed additive standards.
Packaging: Qualified products are packaged in a standardized manner to ensure stability during storage and transportation.
Characteristics and applications of copper sulfate
Chemical form: Copper sulfate has two forms, copper sulfate monohydrate (CuSO4·H2O) and copper sulfate pentahydrate (CuSO4·5H2O). Among them, copper sulfate monohydrate is a white slightly light blue powder, and anhydrous copper sulfate is a light blue powder. Blue crystalline particles or powder.
Solubility: Copper sulfate is highly soluble in water, and copper ions can diffuse into the feed moisture, helping to improve bioavailability.
Biological Availability: The biological availability of copper sulfate is low compared to other copper sources such as copper methionine and basic copper chloride. However, copper sulfate remains a common source of copper in the feed industry due to its cost-effectiveness and ease of handling.
Pro-oxidation effect: Copper sulfate has a strong pro-oxidation effect, and each crystal surface is an active and acidic site for the oxidation reaction.
Irritation: Copper sulfate monohydrate is less irritating to the small intestine, probably due to its lower pro-oxidant effect.
Price and content: Basic copper chloride has a high copper content and is more expensive than copper sulfate, but its solubility in water is poor, which may limit its application in certain feed formulations.
Post time: Jul-16-2024
