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Production technology of anti-caking sodium chlorate

A production process, the technology of sodium chlorate, applied in the direction of chloric acid, chlorate, electrolysis process, etc., can solve the problems such as poor effect, and achieve the effect of improved anti-caking, low cost, and less dosage

Inactive Publication Date: 2017-05-31
HUNAN HENGGUANG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the effect of traditional reagents on sodium chlorate anti-caking is not good

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of production technology of anti-caking sodium chlorate, comprises the steps:

[0023] (1) Crystallization and separation of sodium chlorate from the sodium chlorate electrolyte, the sodium chlorate electrolyte is mixed with an appropriate amount of mother liquor to obtain a density of 1.30g / cm 3 The mixed solution of sodium chlorate electrolyte is the solution obtained after the electrolysis of refined brine, heated in vacuum and the mixed solution boiled at 35°C; wherein, the mother solution is the crystallization of sodium chlorate electrolyte and the separation of sodium chlorate For the remaining solution, the NaCl concentration in the mother liquor is ≤130g / L; the density of the mixed solution is 1.50g / cm 3 , stop heating; discharging, cooling, filtering, washing, drying, to obtain sodium chlorate;

[0024] (2) the sodium chlorate that step (1) obtains is prepared saturated sodium chlorate solution for subsequent use, gets above-mentioned saturated sodium ...

Embodiment 2

[0028] A kind of production technology of anti-caking sodium chlorate, comprises the steps:

[0029] (1) from sodium chlorate electrolytic solution, crystallization separates sodium chlorate, and sodium chlorate electrolytic solution is mixed with an appropriate amount of mother liquor to obtain a density of 1.40g / cm 3 The mixed solution of sodium chlorate electrolyte is the solution obtained after the electrolysis of refined brine, heated in vacuum and the mixed solution boiled at 45°C; wherein, the mother solution is the crystallization of sodium chlorate electrolyte and the separation of sodium chlorate For the remaining solution, the NaCl concentration in the mother liquor is ≤130g / L; the density of the mixed solution is 1.60g / cm 3 , stop heating; discharging, cooling, filtering, washing, drying, to obtain sodium chlorate;

[0030] (2) the sodium chlorate that step (1) obtains is prepared saturated sodium chlorate solution for subsequent use, gets above-mentioned saturate...

Embodiment 3

[0034] A kind of production technology of anti-caking sodium chlorate, comprises the steps:

[0035] (1) from sodium chlorate electrolytic solution, crystallization separates sodium chlorate, and sodium chlorate electrolytic solution mixes with appropriate mother liquor and obtains that density is 1.35g / cm 3 The mixed solution, the sodium chlorate electrolyte is the solution obtained after the electrolysis of refined brine, heated in vacuum and the mixed solution is boiled at 35-45°C; wherein, the mother solution is the crystallization of the sodium chlorate electrolyte and the separation of chloric acid For the remaining solution after sodium, the NaCl concentration in the mother liquor is ≤130g / L; the density of the mixed solution is 1.55g / cm 3 , stop heating; discharging, cooling, filtering, washing, drying, to obtain sodium chlorate;

[0036](2) the sodium chlorate that step (1) obtains is prepared saturated sodium chlorate solution for subsequent use, gets above-mentione...

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PUM

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Abstract

The invention discloses a production technology of anti-caking sodium chlorate. The production technology comprises the following steps of: (1) performing crystal separation on sodium chlorate electrolyte to obtain sodium chlorate; (2) preparing a saturated sodium chlorate solution from the sodium chlorate obtained in the step (1) for standby application, taking and placing 500ml of the saturated sodium chlorate solution in a beaker, adding 2-5g of a surfactant, performing stirring to enable the surfactant to dissolve in the saturated sodium chlorate solution, then adding 500g of sodium chlorate crystals, performing uniform stirring, and performing standing for ten minutes to obtain a feed liquid; (3) performing vacuum filtration on the feed liquid obtained in the step (2), and placing the obtained sodium chlorate crystals in which the surfactant is adsorbed in a constant-temperature drying oven of 12-15 DEG C for drying; and (4) loading the dried sodium chlorate in a plastic sample bag, and performing sealing. The production technology disclosed by the invention is good in anti-caking effect, small in quantity of reagents, and low in cost.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and specifically refers to a production process of anti-caking sodium chlorate. Background technique [0002] In the process of producing sodium chlorate by electrolysis, in order to extract the crystalline sodium chlorate product from the completed electrolysis solution, evaporation concentration or salting-out freezing method can be used. Serious agglomeration has brought great inconvenience to users and also affected the development of foreign markets. Therefore, it has become an important topic for our factory technicians to carry out the research on sodium chlorate anti-caking technology. The finished product of sodium chlorate is an inorganic salt crystal, and there are roughly two methods for selecting anti-caking additives for inorganic salt crystals at home and abroad. One is to use some inert powder to separate the surface of the particles to prevent the contact surface betw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B1/26C01B11/14
Inventor 张海波
Owner HUNAN HENGGUANG CHEM
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