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Alkaline refining deacidification method for cottonseed mixed oil

A technology of alkali refining deacidification and mixed oil, which is applied in the direction of fat oil/fat refining and fat production, which can solve the problems of high production equipment requirements, low oil refining rate, and many supporting equipment, so as to avoid saponification loss and operating cost The effect of low and process simplification

Inactive Publication Date: 2014-10-08
JIANGNAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the above-mentioned process is cumbersome to operate, involves more supporting equipment (such as centrifuges), has high requirements for production equipment, high operating costs, and low oil refining rate

Method used

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  • Alkaline refining deacidification method for cottonseed mixed oil

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The concrete steps of the alkali refining deacidification method of the cottonseed mixed oil of the present embodiment are as follows:

[0028] (1) Add the dilute NaOH solution with a mass percentage concentration of 1% into the neutralization reaction tank 3, and the addition amount is 60% of the volume of the neutralization reaction tank.

[0029] (2) Take 200 kg of mixed oil of cottonseed to be treated, the mass concentration of the mixed oil is 21%, and the acid value is 5.6 (measured according to the method described in GB / T 5530-2005 Determination of acid value and acidity of animal and vegetable oils and fats); The oil is first heated to a temperature of 50°C by the heater 1, and then pumped into the porous oil droplet distribution plate 2 at the conical bottom of the neutralization reaction tank 3, where it is distributed into oil droplets with a diameter of 1-2 mm.

[0030] (3) The oil droplets formed in step (2) enter the dilute NaOH solution in the neutraliza...

Embodiment 2

[0033] The concrete steps of the alkali refining deacidification method of the cottonseed mixed oil of the present embodiment are as follows:

[0034] (1) Add the dilute NaOH solution with a mass percentage concentration of 3% into the neutralization reaction tank 3, and the addition amount is

[0035] Neutralize 50% of the volume of the reaction tank.

[0036] (2) Take 200 kg of cottonseed mixed oil to be processed (same as above), heat it to a temperature of 60°C through the heater 1, and then pump it into the neutralization reaction tank 3, the porous oil drop distribution plate 2 at the conical bottom of the tank, and Distributed into oil droplets with a diameter of 1~2mm.

[0037] (3) The oil droplets formed in step (2) enter the dilute NaOH solution in the neutralization reaction tank 3 to undergo a neutralization reaction, and the deacidified oil and fat obtained from the reaction are separated from the dilute NaOH solution, and rise to the top layer of the dilute NaOH...

Embodiment 3

[0040] The concrete steps of the alkali refining deacidification method of the cottonseed mixed oil of the present embodiment are as follows:

[0041] (1) Add the dilute NaOH solution with a mass percentage concentration of 4% into the neutralization reaction tank 3, and the addition amount is 55% of the volume of the neutralization reaction tank.

[0042] (2) Take 200 kg of cottonseed mixed oil to be processed (same as above), firstly heat it to a temperature of 70°C through the heater 1, and then pump it into the neutralization reaction tank 3, the porous oil droplet distribution plate 2 at the cone mouth of the conical tank bottom, and Distributed into oil droplets with a diameter of 1~2mm.

[0043] (3) The oil droplets formed in step (2) enter the dilute NaOH solution in the neutralization reaction tank 3 to undergo a neutralization reaction, and the deacidified oil and fat obtained from the reaction are separated from the dilute NaOH solution, and rise to the top layer of...

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Abstract

The invention discloses an alkali refining deacidification method of cotton-seed oil mixture. The alkali refining deacidification method includes the following steps: (1) heating the cotton-seed oil mixture to 50-70 celsius degrees; (2) leading the oil mixture which is heated into a multi-hole oil drop distributed plate, and forming oil drops with diameter of 1-2mm; (3) conducting neutralization reaction of the oil drops which are formed in the step (2) and alkali liquor which enters a neutralization reaction tank; (4) conducting conventional desolventizing operation on deacidification grease which is obtained in the step (3) to obtain refined cotton-seed oil finished products. Integration and continuity of the whole alkali refining deacidification nigre-removal process of material feeding, acid-base neutralization and nigre separation are achieved. Size of equipment is small, operation cost is low, operation is convenient, the process is simplified, the deacidification and nigre-removal effects are ideal, and the refined efficiency of the grease is improved.

Description

technical field [0001] The invention belongs to the field of edible oil processing, and in particular relates to an alkali-refining deacidification method for cottonseed mixed oil. Background technique [0002] Cotton is one of the main economic crops in my country, and cottonseed resources are very rich. Cottonseed oil is one of the nine major oil crops in the world. It is an important high-quality plant resource and occupies an important position in my country's oil industry. Due to the characteristics of cottonseed oil itself, conventional refining methods are used to directly refine cottonseed crude oil, and the refining consumption is relatively high. Therefore, at present, the domestic cottonseed oil processing industry generally adopts the process of alkali refining and deacidification of cottonseed mixed oil, namely Taking the mixture of cottonseed crude oil and solvent obtained in the leaching section of cottonseed as the refining object, taking advantage of its lo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B3/06
Inventor 唐年初毕葆山赵晨伟
Owner JIANGNAN UNIV