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Preparation method of gelatinized material and method for comprehensive utilization of magnesium chloride tailing liquid by the same

A magnesium chloride tail liquid, coagulation technology, applied in the field of gelation and solidification, magnesium chloride tail liquid gelation and solidification, can solve the problems of high cost, poor industrial foundation, high price, etc., achieve low production cost, stable and reliable storage, reduce process link effect

Active Publication Date: 2019-03-26
山东瑞源钾盐工程技术股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the current level of gelation and solidification technology for magnesium chloride tail liquid, the gelling agent mostly uses quicklime (CaO), magnesium oxide (MgO), a mixture of calcium oxide and magnesium oxide after calcining natural dolomite ore, and calcium oxide and magnesium oxide are compared. When magnesium oxide is applied, the gelled and solidified body has high strength and good pressure bearing effect. The main defect is that Laos has a poor industrial foundation. There are almost no raw materials for lightly burned magnesium oxide powder in Laos. It needs to be imported from China or produced by high-temperature calcined dolomite, which is expensive and expensive. The cost is high; in terms of the strength of the gelled solidified body, the strength requirement for gob filling is about 0.5-5MPa, the strength requirement for building shaft support materials is mostly above 5MPa, and the strength requirement for building materials is mostly above 10MPa. The technical level of gelation and solidification of magnesium chloride tail liquid has not yet been thoroughly studied and refined according to different uses and purposes

Method used

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  • Preparation method of gelatinized material and method for comprehensive utilization of magnesium chloride tailing liquid by the same
  • Preparation method of gelatinized material and method for comprehensive utilization of magnesium chloride tailing liquid by the same
  • Preparation method of gelatinized material and method for comprehensive utilization of magnesium chloride tailing liquid by the same

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Comparison scheme
Effect test

Embodiment 1

[0036] Such as figure 1 Shown, the preparation method of gelled solidified material of the present invention, carries out according to the following steps:

[0037] The first step, preparation of lime milk precipitant: prepare lime emulsion with water and lime according to the composition of water and calcium oxide mass ratio of 3:1, stir well with agitator, after the calcium oxide and water react completely, it is lime milk Precipitant;

[0038] The second step, mother liquor measurement: measure the magnesium chloride saturated mother liquor, and the measurement standard is: during the chemical reaction between the lime milk precipitant prepared in the first step and the magnesium chloride saturated mother liquor, the amount of magnesium chloride participating in the reaction accounts for 70% of the total magnesium chloride content in the mother liquor;

[0039] The third step, stirring and settling: add the lime milk precipitant prepared in the first step to the saturated...

Embodiment 2

[0045] Such as figure 1 Shown, the preparation method of gelled solidified material of the present invention, carries out according to the following steps:

[0046]The first step, preparation of lime milk precipitant: prepare lime emulsion with water and lime according to the composition of water and calcium oxide mass ratio of 4:1, stir well with agitator, after the calcium oxide and water react completely, it is lime milk Precipitant;

[0047] The second step, mother liquor measurement: measure the magnesium chloride saturated mother liquor, and the measurement standard is: during the chemical reaction between the lime milk precipitant prepared in the first step and the magnesium chloride saturated mother liquor, the amount of magnesium chloride participating in the reaction accounts for 80% of the total magnesium chloride content in the mother liquor;

[0048] The third step, stirring and settling: add the lime milk precipitant prepared in the first step to the saturated ...

Embodiment 3

[0054] Such as figure 1 Shown, the preparation method of gelled solidified material of the present invention, carries out according to the following steps:

[0055] The first step, preparation of lime milk precipitant: prepare lime emulsion with water and lime according to the composition of water and calcium oxide mass ratio of 3.5:1, stir well with a stirrer, after the calcium oxide and water react completely, it is lime milk Precipitant;

[0056] The second step, mother liquor measurement: measure the magnesium chloride saturated mother liquor, and the measurement standard is: during the chemical reaction between the lime milk precipitant prepared in the first step and the magnesium chloride saturated mother liquor, the amount of magnesium chloride participating in the reaction accounts for 75% of the whole magnesium chloride amount in the mother liquor;

[0057] The third step, stirring and settling: add the lime milk precipitant prepared in the first step to the saturat...

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Abstract

The invention relates to a glue solidifying material preparation method and a method for utilizing a glue solidifying material to comprehensively utilize magnesium chloride tail liquid, which belong to the technical field of magnesium chloride tail liquid glue solidification, and aim to solve the technical problems so as to reduce the magnesium chloride tail liquid glue solidification and comprehensive utilization cost, and relieve magnesium chloride tail liquid treatment pressure. The invention adopts the technical scheme that the glue solidifying material preparation method comprises the steps of (1) preparing a lime milk precipitant; (2) measuring mother liquor; (3) stirring for settling; (4) separating solid from liquid; (5) drying for dehydrating; (6) grinding. The method for comprehensively utilizing the magnesium chloride tail liquid comprises the steps of firstly, measuring magnesium chloride saturated tail liquid, weighing the glue solidifying material, mixing, stirring, grinding, and preparing into a net paste; uniformly mixing sodium chloride tail salt to prepare into a salt slurry; adopting fine sand for mixing uniformly to prepare into a sand pulp. According to the glue solidifying material preparation method and the method for utilizing the glue solidifying material to comprehensively utilize the magnesium chloride tail liquid provided by the invention, the magnesium chloride tail liquid can be well comprehensively utilized.

Description

technical field [0001] The preparation method of the gelled solidified material and the method for comprehensively utilizing the magnesium chloride tail liquid according to the present invention belong to the technical field of gelled solidification of the magnesium chloride tail liquid, and are mainly used for the magnesium chloride tail liquid of the goaf filling, the construction of the supporting material of the shaft and the manufacture of building materials, etc. Gelling and solidification during comprehensive utilization. Background technique [0002] Potassium resources are abundant in the world, more than 90% of which are marine salt deposits, mainly including potash salt deposits and carnallite deposits. The potassium resources in Laos are dominated by carnallite ore, followed by potassium slate salt. In the process of producing potassium fertilizer with carnallite ore, a large amount of sodium chloride tailing salt and magnesium chloride tailing liquid will be pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B9/20C04B9/06C04B9/02
CPCC04B9/02C04B9/06C04B9/20
Inventor 刘兴江高红波李涛朱杨东于树德桑宗其
Owner 山东瑞源钾盐工程技术股份有限公司
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