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Method of separation of soap and water

A separation method and soapy water technology are applied in the field of soapy water separation in the edible oil industry to achieve the effects of reduced utilization, less acid consumption and good economic benefits

Inactive Publication Date: 2010-10-27
高建东
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the soapstock and water separation method is costly and not suitable for large-scale production

Method used

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  • Method of separation of soap and water
  • Method of separation of soap and water
  • Method of separation of soap and water

Examples

Experimental program
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Embodiment Construction

[0049] A kind of soapy water separation method 1 embodiment:

[0050] Such as figure 1 with image 3 As shown, use the screw pump 11 to pump 1000 kg of soapstock raw water from the soapstock raw water pool 9 to the heating and stirring tank 1, and the temperature of the heating and stirring tank 1 is kept between 60°C and 65°C. At this time, the pH of the soapstock raw water is measured to be 12 15 liters of sulfuric acid of 25% concentration are loaded into the dosing tank 5, the metering pump 12 is opened, the flow control is at 270 milliliters / second, and the time needs 40 seconds, then change the micro-acid addition to adjust the pH value; add sulfuric acid Start stirring at the same time, the stirring speed is controlled at 20 rpm, add sulfuric acid while stirring, observe the reaction of soapstock raw water and measure the pH value at the same time, when the pH value is adjusted to between 6 and 7 (slightly acidic), stop adding Sulfuric acid, at this moment very small...

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Abstract

The invention discloses a method of separation of soap and water, comprising the following steps of: using a screw pump to pump soapstock raw water to a heating and stirring tank; adding sulfuric acidto the heating and stirring tank till the pH value of the soapstock raw water is adjusted to be 6 to 7, and simultaneously starting stirring; adding 1 per thousand cationic-type polyacrylamide with the proportion of 35L in each ton of soapstock raw water; continuing stirring for 1 hour, standing for 4 hours and completing the layering of the soapstock and soapstock sewage; and pumping the upper layer of soapstock to a soapstock pool from the heating and stirring tank by using the screw pump and adjusting the pH value of the lower layer of soapstock sewage to be 7 by using sodium hydroxide andthen discharging the mixed solution to the sewage treatment plant. Or liquid polyaluminium chloride is used for replacing the sulfuric acid and the cationic-type polyacrylamide. The method has littleacid usage, low cost, good economic benefit, low treatment cost and easy treatment of separated soapstock sewage, and also can effectively recycle soapstock, improve economic benefit of enterprises and lead the soapstock resource to be utilized fully.

Description

technical field [0001] The invention relates to a method for separating soap and water, in particular to a method for separating soap and water in the edible oil industry. Background technique [0002] In the production of edible oil industry, the soapstock separated by the soapstock separator and washing separator in the refining workshop has a high water content, and the cost of directly using it to prepare acidified oil or other basic chemical raw materials is relatively high. If the soapstock with high water content is directly discharged to the sewage treatment plant, it will not only increase the difficulty and cost of sewage treatment, but also the soapstock cannot be recycled, resulting in a waste of resources. The existing soapstock separation method is to adjust the pH value of the soapstock raw water with a high water content to 2 to 3 with acid, so that the soapstock and water can be separated naturally to complete the soap-water separation. However, this separa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D17/02
Inventor 翟桂元辛建湖郭兆军马同远高建东
Owner 高建东
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