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Mixed cotton seed oil refining process

A technology of mixing oil and cottonseed, which is applied in the direction of fat oil/fat refining and fat production, etc. It can solve the problems of difficult refining, high processing cost, and high residual oil in cakes, and achieve shortened production process, easy soap removal and separation, and low refining loss Effect

Inactive Publication Date: 2011-02-09
白长军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] my country's oil processing started late, the technology is backward, and the processing of cottonseed remains in a very backward state. In terms of cottonseed oil production process, domestic generally adopts one-time pressing or pre-pressing leaching process, and the cake residual oil of one-time pressing is relatively high. , the yield of oil is low, the processing cost of pre-pressing and leaching is high, and the color of leaching oil is dark, and refining is difficult
In cotton mills, the refining of cottonseed oil generally adopts two methods: intermittent and closed continuous. Conventional physical and chemical methods to produce cottonseed salad oil have long lines, long time, large equipment investment, and high refining consumption. Coal, Disadvantages such as high power consumption, poor oil quality, large amount of waste water, and environmental pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The crude mixed oil enters the falling film evaporator to evaporate to a concentration of 50%. The solids content in the crude blend oil was 0.05%. After being evaporated by the falling film evaporator, the temperature of the mixed oil is 62°C. The mixed oil enters the Physalis Leaf Mixer. The acid storage tank is equipped with 85% industrial phosphoric acid, and the metering pump pumps out 0.1% phosphoric acid, and the mixed oil Mix with phosphoric acid in a paddle mixer. The acidified mixed oil enters the acid reaction tank and reacts here for 50 minutes. During the reaction, there is a stirrer to stir. After the reaction is completed, it enters the horizontal tube condenser to cool down to 40°C, then enters the paddle mixer, and pumps it in through the pump. Alkali refining is performed on the lye, the concentration of the neutralized lye is 11.06%, the amount of excess alkali added is controlled at 0.25% of the oil, and the operating temperature is 50°C during neut...

Embodiment 2

[0016] The crude mixed oil enters the falling film evaporator to evaporate to a concentration of 60%. The solids content in the crude blend oil was 0.03%. After being evaporated by the falling film evaporator, the temperature of the mixed oil is 65°C. The mixed oil enters the Physalis leaf mixer. The acid storage tank is equipped with 85% industrial phosphoric acid, and the metering pump pumps out 0.2% phosphoric acid, and the mixed oil Mix with phosphoric acid in a paddle mixer. The acidified mixed oil enters the acid reaction tank and reacts here for 80 minutes. During the reaction, there is a stirrer to stir. After the reaction is completed, it enters the horizontal tube condenser to cool down to 50°C, then enters the paddle mixer, and pumps it in through the pump. Alkali refining is performed on the lye, the concentration of the neutralized lye is 16.09%, the amount of excess alkali added is controlled at 0.45% of the oil, and the operating temperature is 60°C during neut...

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Abstract

The mixed cotton seed oil refining process treats leached mixed cotton seed oil directly with the evaporating unit in the leaching plant. Leached mixed cotton seed oil is refined based on its special physical and chemical properties through treatment in vacuum condition and pressurized condition successively. The technological process is simple, low in power consumption, convenient in niger and high product quality.

Description

Technical field [0001] The invention relates to the field of edible oil processing, especially a method for refining cottonseed mixed oil designed for cottonseed crude oil which has relatively high viscosity, relatively high free fatty acid, and contains toxic gossypol. The process is mature and can be produced continuously on a large scale Production. Background technique [0002] my country's oil processing started late, the technology is backward, and the processing of cottonseed remains in a very backward state. In terms of cottonseed oil production process, domestic generally adopts one-time pressing or pre-pressing leaching process, and the cake residual oil of one-time pressing is relatively high. , the yield of oil is low, the processing cost of pre-pressing and leaching is high, and the color of leaching oil is deep, and refining is difficult. In cotton mills, the refining of cottonseed oil generally adopts two methods: intermittent and closed continuous. Convention...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B3/04C11B3/06
Inventor 白长军
Owner 白长军
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