A method for preparing an efficient potassium ion analyzer

By preparing high-efficiency potassium ion analyser and using Glauber's solid phase and liquid phase to perform potassium ion replacement reaction, the problem of thin potassium ion concentration in seawater is solved, efficient analysis and enrichment of potassium ions is achieved, the mineralization process is simplified and the mineralization quality is improved.

CN118743986BActive Publication Date: 2025-03-21LENGHU BINDI POTASH FERTILIZER
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Patent Information

Application Number
CN202410828203.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-06-25
Publication Date
2025-03-21
Estimated Expiration
2044-06-25

AI Technical Summary

Technical Problem

When extracting potassium ions from seawater, the prior art has problems such as thin potassium ions concentration, low product price, inability to use chlorine-free crops, and complicated subsequent treatment.

Method used

A high-efficiency potassium ion analyser is used to prepare a high-efficiency potassium ion analyser by decomposing and reacting the solid phase of Glauber's salt with hot water and liquid phase under specific conditions to obtain refined Glauber's salt and liquid phase, which is used to prepare high-efficiency potassium ion analyser. The analytical agent undergoes potassium ion replacement reaction through an adsorption column, releases potassium ions and enriches potassium ions in the analytical water.

Benefits of technology

It realizes efficient analysis and enrichment of potassium ions in seawater, simplifies the oreing process, improves the mineralization quality and potassium yield, and makes full use of the S element resources in sulfate-type potassium-containing brine.

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Abstract

The present invention relates to a method for preparing a highly efficient potassium ion analyzing agent, comprising the steps of: preparing a sodium sulfate solid phase S having a main component of Na2SO4.10H2O; 10 Hot water W1 and liquid G2 are added to the mixture, and a decomposition reaction is carried out at 38-42°C, followed by filtration to obtain a filter residue and a mother liquor G1, wherein the mother liquor G1 is naturally cooled to +5-3°C to obtain a solid phase of refined thenardite decahydrate and a liquid G2; the refined thenardite decahydrate solid phase is added to hot water W2 to prepare a saturated Na2SO4 liquid at 40-45°C, wherein Na2SO4 is ≥30.0wt%, Na + ≥9.73wt%; that is, the highly efficient potassium ion analyzer S0 is obtained. The preparation process is simple, and the prepared analyzer can not only release the adsorbed potassium ions, but also enrich the potassium ions in the analyzed water; and by using local materials, sulfate-type potassium-containing brine is selected as the raw material, and the brine pentad system can be converted into a ternary system through adsorption-analysis, which also simplifies the potassium salt mineralization process, improves the mineralization quality, and increases the potassium yield.
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