A treatment method for extracting potassium from industrial waste residue straw ash

Abstract

The invention discloses a treating method for extracting potassium through industrial residue straw ash. The treating method mainly includes the steps of material preparing, mixing, sediment filtering, certain thermotechnical technology water removing and the like; dry and wet straw ash can be used as the main raw material, and calcium chloride residues are used as the auxiliary material for extracting potassium materials; and residual sediment can be used for producing cement materials of building products. The treating method has the advantages that cement strength is high, concrete compatibility is good, the technology is advanced and reasonable, energy consumption is low, efficiency is high, investment is saved, cost is low, secondary pollution is avoided, and environmental protection is facilitated. According to an existing method for treating straw ash, the additional value is low, productivity is low, the dosage is small, and straw ash high in potassium content cannot be used for building products. The treating method for extracting potassium through industrial residue straw ash is a good method for thoroughly overcoming the technical defects of straw ash, eliminating a large amount of straw ash and a large number of other industrial waste residues, lowering environment pollution and facilitating environment protection.

Description

【Technical field】 [0001] The invention relates to the technical field of potassium extraction from industrial waste residue, straw ash, in particular to a treatment method for extracting potassium from industrial waste residue, straw ash. 【Background technique】 [0002] Judging from the current situation at home and abroad, in the 1970s, the industrially developed countries began to use straw ash waste. The United States, followed by India, Thailand, New Zealand, Japan, Australia and other countries studied the use of straw in a small amount for building materials, with a utilization rate of 30%. Left and right, all are high-quality straw ash, and a large amount of poor-quality ash is all piled up and landfilled. At present, our country has less development and research on straw ash for the production of building materials, only about 3-5%, all of which are high-quality fine ash, and others 90% of poor-quality ash is landfilled, causing serious secondary pollution to the env...

AI Technical Summary

Problems solved by technology

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a treatment method for extracting potassium from industrial waste residue, straw ash, which is aimed at the problem that straw ash will cause serious pollution to air and water sources, and to improve a kind of straw with high added value. The advanced technology of ash treatment extracts potassium materials and the remaining waste residue straw ash is all used in the production of cement for building materials products, and at the same time solves the defects of large water absorption and high potassium content of straw ash, no secondary pollution, and straw ash that is conducive to environmental protection Method for extracting potassium material