Method for recovering mixed oil by cottonseed protein extracting process
A technology of cottonseed protein and recovery method, which is applied in the direction of recycling technology, fat material recovery, fat oil/fatty acid recovery from waste, etc., can solve the problems of waste, high cost, incomplete detoxification, etc., and achieve simple production process, high efficiency High oil purity and low cost
Inactive Publication Date: 2007-09-05
北京中棉紫光生物科技有限公司
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Problems solved by technology
However, since cottonseed cake contains a small amount of toxic substance - gossypol, it cannot be effectively utilized
At present, a lot of work has been done on the detoxification of cottonseed processing, such as further cooking of cottonseed cake, hot steam injection, solvent re-leaching, alkaline treatment, microbial fermentation, etc. Due to the high cost, it has not been produced in a large scale continuously
In the process of cottonseed protein extraction, 6# solvent oil is used to extract and degrease, and then reused after evaporation and cooling. In the existing technology, the 6# solvent in a large amount of mixed oil cannot be effectively recovered, causing a lot of waste
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[0007] The embodiments of the present invention will be described in detail below with reference to the drawings.
[0008] The mixed oil 1 discharged from the oil extractor is filtered by the hydrocyclone 2 and the filter 3, and then sent to the salting tank 4. The filter mesh of the filter 3 is ≥200 mesh / inch;
[0009] The mixed oil 1 is salted out in the salting tank 4, the brine concentration is 5-10%, and the liquid level is 400-600mm;
[0010] The mixed oil after salting out is crude oil 5, which is transported to the first evaporator 6 for evaporation. The indirect vapor pressure is 0.05-0.2Mpa, the outlet temperature is 100-120°C, and the crude oil concentration is 60-65%; The crude oil from the first evaporator 6 is transported to the second evaporator 7 for evaporation, the indirect vapor pressure is 0.2-0.3Mpa, the outlet temperature is 100-120°C, and the crude oil concentration is 90-95%;
[0011] The crude oil 8 from the evaporator 7 is sent to the stripper 9. The indi...
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A method for recovering mixed by cotton-seed protein extraction is carried out by discharging mixed oil from oil-extraction leaching device, filtering by hydraulic cyclone and filter, delivering it to salting-out pot to salt out, delivering the crude oil to the first evaporator and the second evaporator to evaporate, delivering the crude oil to stripping tower, putting it into storage tank, and pumping it into refining workshop. It's cheap, simple, has better purity and no environmental pollution.
Description
Technical field: [0001] The invention relates to a production method of plant protein extraction, in particular to a method for recovering mixed oil in the process of extracting cottonseed protein. Background technique: [0002] my country is a large cotton-producing country, and cottonseed cake resources are very rich. The protein content of cottonseed cake is about 40%. Therefore, cottonseed cake, like soybean cake, is a kind of high-quality and abundant plant protein. However, because cottonseed cake contains a small amount of toxic substance-gossypol, it cannot be used effectively. At present, a lot of work has been done in cottonseed processing and detoxification, such as further cooking of cottonseed cake, steam thermal spraying, solvent re-leaching, alkaline treatment, microbial fermentation, etc., and certain results have been achieved in a small range, but due to incomplete detoxification, Because of the high cost, it has failed to produce on a large scale. In the proces...
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IPC IPC(8): C11B1/16C11B13/00
CPCY02W30/74
Inventor 孙旭东
Owner 北京中棉紫光生物科技有限公司