Production method for preparing monocalcium phosphate and byproduct special fertilizer for capsicum annuum

Abstract

The invention relates to the technical field of chemical engineering and particularly relates to a production method for preparing monocalcium phosphate and a byproduct special fertilizer for capsicum annuum. A preparation process of a monocalcium phosphate product and a preparation process of a special fertilizer for capsicum annuum are further combined by way of analyzing requirements for nutrients of special fertilizer for capsicum annuum and analyzing the defects in the monocalcium phosphate preparation process, so that in the monocalcium phosphate product preparation process, deep crystallization is not needed, thereby improving the purity of the monocalcium phosphate product and lowering the cost of extra purification in the prior art. By using the waste liquid, environmental pollution caused by massive discharge of elements such as phosphorus, calcium and nitrogen in the waste liquid is avoided, so that the production method has remarkable environmental protection value and economic benefit.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a production method for preparing calcium dihydrogen phosphate by-product special pepper fertilizer. Background technique [0002] Capsicum (scientific name: Capsicum annuum), also known as ox horn pepper, long pepper, pepper, ginger, sea pepper, pepper, spicy horn, Qin pepper, etc., is a plant of the genus Capsicum in the family Solanaceae. The fruit of pepper has a spicy taste because the peel contains capsaicin, which can increase appetite. The content of vitamin C in pepper ranks first among vegetables. Pepper growth requires sufficient nitrogen, phosphorus, and potassium. Phosphorus plays an important role in the formation and development of flowers, and potassium is an essential element for fruit expansion. In production, nitrogen, phosphorus and potassium must cooperate with each other to improve yield and quality. In the traditional pepper planting process, a ...

AI Technical Summary

Problems solved by technology

It can be seen that in the field of traditional special fertilizers for peppers, they are mixed special compound fertilizers for peppers prepared by mixing traditional chemical fertilizers. Nutrient requirements in the process of planting peppers, but due to the disproportion between elements and elements, long-term use of this fertilizer for planting will change the soil structure layer, cause the soil structure layer to compact, and then pollute the environment, reduce pepper production and quality

[0003] At the same time, in the preparation process of calcium dihydrogen phosphate products, calcium dihydrogen phosphate products are usually obtained by crystallization of calcium dihydrogen phosphate crystals, and in this process, in order to increase the output of calcium dihydrogen phosphate products, Furthermore, it will not cause phosphorus and calcium element resources to remain in the waste liquid and cause waste of resources, and at the same time, a large amount of phosphorus and calcium resources will not be discharged into the environment as waste liquid raw materials to pollute the environment; however, such excessive crystallization is difficult to ensure that the diphosphate The purity of the calcium hydrogen phosphate product, and then make the purity of the prepared calcium dihydrogen phosphate product lower, it is difficult to meet the needs of industrial grade, feed grade or food grade, for this reason, after making the calcium dihydrogen phosphate product, usually need to carry out The purification process of calcium dihydrogen phosphate products, thereby increasing the production cost of calcium dihydrogen phosphate products

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