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Preparation and application of a refined decolorizer for edible oil and cleaning

A decolorizing agent and edible oil technology, applied in the fields of fat oil/fat refining, chemical instruments and methods, inorganic chemistry, etc.

Inactive Publication Date: 2017-10-31
TIANJIN JINLONGCHANG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the flaws of the processing aid clay used in the existing edible oil production industry, and to provide a cleaning material to replace clay - a production method and application of a refined decolorizer

Method used

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  • Preparation and application of a refined decolorizer for edible oil and cleaning
  • Preparation and application of a refined decolorizer for edible oil and cleaning
  • Preparation and application of a refined decolorizer for edible oil and cleaning

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] 1. Add sodium chloride and sodium chlorate to the batching tank (1) according to the mass ratio of 0.3:1, add water to dissolve into a mixed aqueous solution A, adjust the concentration to 300-600g / L, and heat to 50°C to dissolve it; Then add ventilated airtight reaction tank (2) for subsequent use.

[0054] The 2nd, by the quality of 1.2:1 molar ratio of hydrochloric acid and sodium chlorate, hydrochloric acid is injected the first step reaction tank (2) of ventilating with metering pump and does redox reaction; Redox reaction process material is in reaction tank (2) ) in the reaction formula is as follows:

[0055] NaCl+6NaCl+HCl+3H 2 o 2 +H 2 O=3O 2 +6Cl 2 +SO 2 +H 2 O.

[0056] 3. Regulate the flow rate of the high-pressure fan, cooperate with the air flow rate of the monitoring instrument, the data of the online available chlorine concentration display instrument, and adjust the amount of hydrochloric acid added, so that the ratio of the air volume to the g...

Embodiment 2

[0071] Embodiment 2, application of reaction waste recovery

[0072] During the production process of the refined decolorizer, about 2.7 cubic meters of reaction waste liquid is produced per ton of finished product (dry product). According to laboratory analysis, the content of hydrochloric acid in the waste liquid is 23% to 27%, and the content of Glauber's salt mixture is 30% to 50%. The technical scheme adopted for waste liquid purification and reuse of the present invention comprises the following steps:

[0073] 1) Pour the waste liquid into a vacuum concentration tank that can be practiced by professionals in the industry, and then add concentrated sulfuric acid. The concentrated sulfuric acid and waste liquid are added at a volume ratio of 0.005:1. Carry out vacuum evaporation and concentration at 50°C to 200°C, preferably 80°C to 120°C, and stop the concentration when the evaporation reaches 40% of the total waste liquid;

[0074] 2) Pour the concentrated solution of ...

Embodiment 3

[0080] Take sodium chlorate with a content of 99% and sodium chloride with a content of 98% and mix it at a mass ratio of 1:0.06, mix it with water at a concentration of 350g / L, add it to the batching tank, and dissolve it under the conditions of 40r / min and 50°C. Add the reaction tank; start the high-pressure fan, and temporarily adjust the initial air volume to 908m 3 / h. Then 10mol / L hydrochloric acid solution is slowly added to the reaction tank with a metering pump, and at this time, sodium chloride is converted into Cl under the redox of hydrochloric acid. 2 , sodium chlorate releases ClO 2 Gas, at this time there is ClO in the reaction tank 2 , Cl 2 、H 2 , O 2 , a variety of mixed gases, the present invention is collectively referred to as compound available chlorine. Composite available chlorine and air flow are discharged from the reaction tank in time according to the volume ratio of 0.1-50:100. At the same time, the effective chlorine content in the reaction ...

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Abstract

Preparation and application of a refined decolorizer for edible oil cleaning. Composite effective chlorine gas is prepared from chlorate aqueous solution under the condition of inorganic acid or organic acid as redox agent, then adsorbed by the secondary chemical reaction of stabilizer carrier hydroxide and silicon compound, and then concentrated, boiled and dried to produce Granular composite finished product - refined decolorizer. In particular, the acidic reaction mother liquor is not discharged as waste liquid, and the by-product sodium sulfate is recovered after reprocessing the waste liquid, and then the reaction mother liquor is reused. The invention can be used for refined decolorization of animal and vegetable oils, especially for edible oil refinement, which can make the industry make a significant contribution in responding to the energy saving and emission reduction proposed by the state. The invention can save more than 80% energy in the edible oil industry; Discharge 100% of the oily waste clay filter residue. It can also be used for decolorization of other foods and organic matter. The product of this technology has great environmental protection and economic value, and has broad promotion and application prospects; it occupies a leading position in the world.

Description

technical field [0001] The invention belongs to the technical field of fine chemicals and relates to the preparation and application of a novel cleaning material-food processing aid. Background technique [0002] China is a big consumer of edible oil. In 2014, the total national edible oil production was 45.21 million tons (including edible corn oil, tea oil, walnut oil and other small varieties of oil, animal oil and secondary refined oil), and the consumption is still increasing year by year , the edible oil market is stable and positive, and large foreign oil companies have also settled in China. In order to enjoy the tax-free policy, most of them set up factories along the coast of China. Tianjin Port alone has settled in 30 to 40 large Chinese and foreign edible oil refining companies, becoming China's largest Edible oil production base. [0003] Previously, the domestic and international edible oil industries generally used adsorptive activated clay (hereinafter refer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/10B01J20/30C11B3/10
Inventor 任宝成任海燕
Owner TIANJIN JINLONGCHANG TECH CO LTD
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