Feed-grade calcium hydrogen phosphate and preparation method thereof

Abstract

The invention discloses improved feed-grade calcium hydrogen phosphate. The improved feed-grade calcium hydrogen phosphate is prepared from the components in parts by weight: 100-200 parts of slaked lime, 30-40 parts of flour, 6-12 parts of rice bran, 1-5 parts of vegetable oil, 6-10 parts of hydrochloric acid, 1-3 parts of yellow mealworm sand, 2-6 parts of pomace and 8-12 parts of nutrition additives. The feed has the characteristics of high phosphorus content, high water solubility and the like, the growth and development of livestock and poultry can be accelerated, the fattening period isshortened, and weight is quickly gained; and the breeding rate and survival rate of the livestock and poultry can be improved, at the same time, the disease and cold resistance of the livestock and poultry is improved, and the preventive and therapeutic effect of osteomalacia, white dysentery and paralysis of the livestock and poultry is provided.

Description

technical field [0001] The invention relates to an improved feed grade calcium hydrogen phosphate and a preparation method thereof, belonging to the technical field of animal feed preparation. Background technique [0002] Improved feed grade calcium hydrogen phosphate is an excellent high-efficiency phosphate feed additive with high phosphorus content and high water solubility. It is widely used as a feed additive for aquaculture animals and livestock and poultry animals. Due to the high water-soluble phosphorus content of calcium dihydrogen phosphate, which accounts for more than 90wt% of total phosphorus, it is beneficial to the absorption of calcium and phosphorus by aquatic animals. The digestion and absorption rate is above 90%, and the excretion is small, which is beneficial to environmental protection. It is widely used at home and abroad. [0003] At present, wet process and dry process are commonly used at home and abroad to produce and improve feed grade calcium ...

AI Technical Summary

Problems solved by technology

Among them, the wet process is to add solid raw materials to the phosphoric acid solution prepared by the wet process to generate calcium hydrogen phosphate dissolved in water. After vacuum concentration, cooling and crystallization, calcium hydrogen phosphate crystals are precipitated, and then dried, crushed, and sieved to obtain the product , this method has the disadvantages of long process flow, large phosphorus loss, high energy consumption, large investment, small production capacity, and high cost.