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Method for preparing calcium soap by utilizing quick lime and method for processing produced emulsified compound

A technology for milk of lime and quicklime, which is applied in the fields of compounds, chemical instruments and methods, separation methods, etc. The effect of low operating cost, reduced consumption and convenient connection

Inactive Publication Date: 2013-01-02
王德兴
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the siphon method can solve the problem that a large amount of emulsified matter affects production, as the siphon method sucks out and discharges the liquid substance, a large amount of extractant is lost
The price of the extraction agent used in extraction production is generally relatively high, so the consumption of the extraction agent occupies a large production cost

Method used

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  • Method for preparing calcium soap by utilizing quick lime and method for processing produced emulsified compound
  • Method for preparing calcium soap by utilizing quick lime and method for processing produced emulsified compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The process parameters are as follows:

[0036] Take ammonium chloride wastewater with a concentration of 4mol / L from the production line: 200ml; industrial grade quicklime: 30g; blank P507 (organic phase) with a concentration of 1.5mol / L: 3.0L.

[0037] Refer to attached Figure 1~2 , the process steps are as follows:

[0038] a. Ammonia steaming - ammonia absorption

[0039]In a distillation bottle, mix quicklime (CaO) with ammonium chloride wastewater, and heat to distill ammonia. Absorb the evaporated ammonia gas with 3.0L blank P507 with a concentration of 1.5mol / L to form ammonium soap, and the saponification degree of ammonium soap is 25% according to titration measurement; after the reacted solution is filtered or clarified, high-concentration ammonia nitrogen calcium chloride is obtained solution.

[0040] b. Phase inversion

[0041] Add ammonium soap and high-concentration ammonia nitrogen calcium chloride solution into a separatory funnel, mix and stir, ...

Embodiment 2

[0045] The process parameters are as follows:

[0046] Take ammonium chloride wastewater with a concentration of 4mol / L from the production line: 300ml; milk of lime: 40g; blank P507 (organic phase) with a concentration of 0.8mol / L: 10.0L.

[0047] The process steps are as follows:

[0048] a. Ammonia steaming - ammonia absorption

[0049] In a retort, milk of lime (Ca(OH) 2 ) mixed with ammonium chloride wastewater, heated to distill ammonia. Absorb the evaporated ammonia gas with 10.0L blank P507 with a concentration of 0.8mol / L to form ammonium soap, and measure the degree of saponification of the ammonium soap to be 35%; after the reacted solution is filtered or clarified, a high-concentration ammonia nitrogen calcium chloride solution is obtained .

[0050] b. Phase inversion

[0051] Add ammonium soap and high-concentration ammonia nitrogen calcium chloride solution into a separatory funnel, mix and stir, and then separate into layers. The phase inversion operation...

Embodiment 3

[0055] The process parameters are as follows:

[0056] Take ammonium chloride wastewater with a concentration of 4mol / L on the production line: 250ml; industrial grade quicklime: 35g; blank P204 with a concentration of 1.0mol / L: 6.0L, and (LaCe)Cl with a concentration of 1.2mol / L 3 Feed liquid: 20ml.

[0057] The process steps are as follows:

[0058] a. Ammonia steaming - ammonia absorption

[0059] In the distillation bottle, mix quicklime and ammonium chloride wastewater, and heat to distill ammonia. The steamed ammonia gas is absorbed with 6.0L concentration of 1.0mol / L blank P204 to form ammonium soap, and the measured ammonium soap saponification degree is 32%; after the reacted solution is filtered or clarified, a high-concentration ammonia nitrogen calcium chloride solution is obtained;

[0060] b. Phase inversion

[0061] Add ammonium soap and high-concentration ammonia-nitrogen calcium chloride solution into the separating funnel, mix and stir, and then separate...

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Abstract

The invention relates to a method for preparing calcium soap by utilizing quick lime or lime milk and a method for processing produced emulsified compound, in particular to a technical method for preparing calcium soap in a rare earth extraction section by utilizing quick lime or lime milk. The method comprises the following steps: carrying out ammonia steaming-ammonia absorbing: carrying out dual firing and ammonia steaming on the quick lime or lime milk and ammonium chloride solution according to the molar ratio that n Ca+: n ammonium chloride =1: 1.5-2.2; absorbing the steamed ammonia gas by blank extracting agent to form ammonium soap; filtering or clarifying the reacted solution to obtain high concentration ammonia nitrogen calcium chloride solution; and carrying out phase inversion: mixing and stirring the ammonium soap with the high concentration ammonia nitrogen calcium chloride solution prepared by ammonia steaming-ammonia absorbing for 5-15 min, wherein the ammonium enters the aqueous phase to form ammonium chloride, the calcium enters the organic phase to form the calcium soap. In the invention, as the quick lime is adopted, the economic benefits are high, no three wastes is discharged and nopollution to the environment is generated; and meanwhile, consumption of the extracting agent can be reduced by more than 2 / 3 and the yield of the rare earth is improved.

Description

technical field [0001] The invention relates to a method for preparing calcium soap by using quicklime and the emulsified mixture produced, which belongs to the method for preparing calcium soap by using quicklime or lime milk in the extraction section and the treatment method for the produced emulsified mixture. The solvent extraction process can be widely used in industrial sectors such as rare earth separation, hydrometallurgy, petrochemical industry, atomic energy industry, medicine, food and environmental protection. Background technique [0002] my country's rare earth resources rank first in the world. Solvent extraction (a method of extracting a certain substance from its immiscible liquid phase by using an organic solvent) technology is widely used in industry to separate rare earth elements, that is, through strict process control , so that a certain flow rate of rare earth solution and a certain flow rate of extractant are mixed, extracted, clarified, washed, strip...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F9/40C07F9/11B01D37/00
Inventor 王德兴
Owner 王德兴
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