Production method for preparing special fertilizer for red flower from tricalcium phosphate by-products

Abstract

The invention relates to the technical field of chemical engineering and particularly relates to a production method for preparing a special fertilizer for red flower from tricalcium phosphate by-products. By virtue of the molar ratio of starting material substances in the production process and the accurate analysis and detection of filtrate in the crystallization step, the quality of the produced compound fertilizer for red flower can be ensured, in a mode of adjusting contents of ingredients in the filtrate, waste liquid generated in the production process of chemical products is used as a raw material for production of the compound fertilizer and thus the discharge of the waste liquid, the production cost of the compound fertilizer is reduced and the production method has significant environmental-friendly and economic values.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a production method for preparing special fertilizer for safflower by-product of tricalcium phosphate. Background technique [0002] Safflower, (Latin scientific name: Carthamus tinctorius L.), alias: red blue flower, thorn saffron, Compositae, safflower plant, dry tubular flower, orange red, narrow and thin flower tube, 5-lobed at the apex, narrow lobes Linear, anthers yellow, united into a tube, higher than the lobes, with a stigma exposed in the center. With a specific aroma, slightly bitter taste. It is better to have long flower pieces, bright red color and soft texture. have. Promoting blood circulation to stimulate menstruation, dissipating blood stasis and relieving pain, helps to treat amenorrhea, dysmenorrhea, lochia, chest pain and heart pain, stagnant abdominal pain, chest pain, bruises, sore swelling and pain. It has the effects of promoting blood circu...

AI Technical Summary

Problems solved by technology

Before plowing the ground, all base fertilizers are evenly spread on the ground, and then deeply plowed into the soil to provide safflower with nitrogen, phosphorus and potassium nutrients and other nutrients for the normal growth of safflower; however, according to reports, crops are not sensitive to NPK The absorption rate of nitrogen fertilizer is low, the absorption rate of nitrogen is generally not higher than 25%, the absorption rate of phosphorus fertilizer is about 40%, and the absorption rate of potassium fertilizer is not more than 60%, so it can be known that for nitrogen and phosphorus After potassium fertilizer is applied to the soil, a large amount of nitrogen, phosphorus and potassium elements will remain in the soil, which will cause a lot of waste of nitrogen, phosphorus and potassium resources, and will also cause the soil to become thinner and thinner, resulting in changes in the soil nutrient structure layer , which in turn affects the recycling of soil and has serious ecological impacts

[0003] At the same time, in the preparation process of tricalcium phosphate products, it is usually produced by crystallization and precipitation. This process often requires deep crystallization of tricalcium phosphate, thereby reducing the waste of elemental resources such as nitrogen, phosphorus, and calcium. Increase the output of tricalcium phosphate and reduce production costs; but this deep crystallization will affect the purity of tricalcium phosphate products, and then affect the quality of tricalcium phosphate products; and the amount of waste liquid after crystallization treatment is large, and it is also will cause environmental pollution

Images