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A method for deep purification of edible salt mixed odor substances

A technology for deep purification and edible salt, applied in the field of salt chemical industry, can solve the problems of non-compliance with sensory requirements, unqualified products, unpleasantness, etc., and achieve the effects of stable treatment effect, small investment and reduced energy consumption.

Active Publication Date: 2021-05-28
ZHENGZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, because of their unpleasant smell, the sensory requirements of these table salt products do not meet the requirements of GB / T5461 "Edible Salt" and GB2721 "National Food Safety Standard Edible Salt", resulting in unqualified products

Method used

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  • A method for deep purification of edible salt mixed odor substances
  • A method for deep purification of edible salt mixed odor substances
  • A method for deep purification of edible salt mixed odor substances

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Embodiment 8

[0055] The salt semi-finished product that embodiment 8 adopts is fluidized bed outlet dry salt, records total volatile organic compound content 36.88mg / kg, butyric acid content 5.76mg / kg (see attached Figure 9 ).

Embodiment 1

[0057] The method of the present invention for deep purification of edible salt mixed with peculiar smell substances, the detailed steps of the purification method are as follows:

[0058] a, first take by weighing 1000g of loose wet salt at the outlet of the centrifuge, i.e. 1000g of salt semi-finished product, add 2.5g of protonating reagent under the condition of constant stirring, continue to fully stir after adding, obtain the mixture of the two;

[0059] The protonating reagent is prepared by mixing and diluting hydrochloric acid with a mass percentage concentration of 36% and pure water according to a volume ratio of 1:3 (that is, measuring 20 mL of hydrochloric acid with a mass percentage concentration of 36% and 60 mL of pure water prepared by dilution);

[0060] b. Put the mixture obtained in step a in an oven, set the oven temperature to 80° C., and the drying time to 4 minutes;

[0061] C, then under the condition of constant stirring, evenly spray mass percent co...

Embodiment 2

[0065] The method of the present invention for deep purification of edible salt mixed with peculiar smell substances, the detailed steps of the purification method are as follows:

[0066] a, first take by weighing 1000g of loose wet salt at the outlet of the centrifuge, i.e. 1000g of semi-finished table salt, add 5.0g of protonating reagent under the condition of constant stirring, continue to fully stir after adding, and obtain the mixture of the two;

[0067] The protonating reagent is prepared by mixing and diluting phosphoric acid with a mass percent concentration of 85% and pure water at a volume ratio of 1:7 (that is, measuring 20 mL of phosphoric acid with a mass percent concentration of 85 percent and 140 mL of pure water prepared by dilution);

[0068] b. Put the mixture obtained in step a in an oven, set the oven temperature to 80° C., and the drying time to 4 minutes;

[0069] c, then under the condition of constant stirring, in the mixture obtained after drying i...

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Abstract

The invention discloses a method for deeply purifying edible salt mixed with peculiar smell substances. First, weigh the semi-finished product of edible salt, add the protonating reagent under the condition of constant stirring, and continue to stir fully after adding to obtain the mixture of the two; put the mixture in an oven for drying; spray evenly on the mixture obtained after drying Hydrogen peroxide solution, continue to stir and mix evenly; place the mixed mixture in a microwave reactor for microwave reaction treatment; use headspace gas chromatography to analyze the processed product, and measure the total volatility of edible salt products. Organic matter and butyric acid content. The treatment agent used in the purification method of the present invention has no residue, no harm to the environment, and is beneficial to environmental protection; cumbersome procedures such as regeneration are not required, and automation is easily realized. The refined salt processed by the technical scheme of the invention can achieve no peculiar smell and meet the relevant regulations of the new version of the national standard.

Description

[0001] 1. Technical field: [0002] The invention belongs to the technical field of salt chemical industry, and in particular relates to a method for deeply purifying edible salt mixed with peculiar smell substances. [0003] 2. Background technology: [0004] The Yewu Sag salt field is one of the super large high-quality salt mines among the 31 salt basins in the central and eastern part of my country, with a predicted reserve of 230 billion tons and an average rock salt grade of about 89% NaCl. Comprehensive research shows that the sedimentary model of the salt deposit in the Yewu Sag is a shallow-water saline lake facies evaporation single salt precipitation model, and the genetic type of the deposit belongs to the continental saline formation intermountain depression type. During salt rock deposition and diagenesis, organic matter remained in rock salt deposits in the form of a small amount of fatty acids. After these rock salts are mined in the form of brine, a small amou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01D3/14
CPCC01D3/14C01P2006/80
Inventor 杨李富路新燕阎语魏东辉王楠何占航左仁杰李中军要红昌王建设
Owner ZHENGZHOU UNIV
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