Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for extracting plant sterol from fatty acid or methyl ester pitch from distillate

A technology for phytosterols and fatty acids, applied in the field of oleochemical industry, can solve the problems of difficulty in large-scale industrial production, low sterol yield, large solvent loss, etc. Effect

Inactive Publication Date: 2012-07-18
ZANYU TECH GRP CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of these patent documents first use methanol lye saponification to distill blackfoot, then use solvent to extract sterols in soapstock, and also have direct use of solvent extraction to distill sterols in blackfoot, because emulsions are often formed during solvent extraction, and sterols are obtained Low efficiency, large solvent loss, low utilization value of by-products, and difficulty in large-scale industrial production

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1: Cottonseed oil fatty acid distillation blackfoot, the sterol content measured by gas chromatography is 11.5%. Weigh 60 grams of the black foot, put it in a saponification tank, add 30 milliliters of water to dilute and stir evenly, add 80 milliliters of 20% sodium hydroxide aqueous solution, saponify at 95 ° C for 16 hours, release alkali precipitation waste water, and then add 100 milliliters of water, After stirring evenly, add 100 ml of 40% calcium chloride aqueous solution, heat up to 70-80° C., react for 3 hours, discharge, wash with water, and dry to obtain 67 grams of dry calcium soap powder. Use 300 milliliters of acetone to boil and extract for 1 hour, let stand, remove the supernatant, repeat the extraction twice, combine the extracts, evaporate the acetone to obtain 7.5 grams of crude sterols, with a purity of 84.2%, and a sterol extraction yield of 91.5 %.

Embodiment 2

[0017] Example 2: Weigh 200 grams of waste oil fatty acid distillation black foot, put it in a saponification tank, add 250 milliliters of 30% sodium hydroxide aqueous solution, heat in an oil bath at 120° C., and saponify for 24 hours. Add 350 ml of 20% calcium chloride solution, react in an oil bath at 100°C for 4 hours, filter, wash with water, and dry in an oven at 105°C for 5 hours to obtain 212 grams of calcium soap. Add 2 liters of acetone, and extract in a boiling water bath under reflux for 2 hours. After removing the acetone solvent from the extracted clear liquid, 9.2 grams of crude sterols are obtained. The content of sterol in the waste oil fatty acid distillation is 4.4%, the purity of crude sterol is 82.7%, and the extraction yield of sterol is 86.5% as measured by gas chromatography.

Embodiment 3

[0018] Example 3: Weigh 98.5 grams of soybean oil deodorization distillate fatty acid methyl ester distilled black foot, put it in a saponification tank, add 150 ml of 30% sodium hydroxide solution, saponify at 95 ° C for 24 hours, add 30% calcium chloride aqueous solution 100 ml, filtered after reacting for 3 hours, washed with water until neutral, and dried in an oven at 105°C until the water content was below 3%, to obtain 94 grams of calcium soap.

[0019] Weigh 20 grams of calcium soap and extract with 100 milliliters of acetone under reflux for 1 hour, repeat the extraction once more, combine the extracts, and evaporate the acetone to obtain 4.9 grams of crude sterols. The content of nigra sterol is 21.7%, the purity of crude sterol is 84.4%, and the extraction yield of sterol is 90.9% as measured by gas chromatography.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for extracting plant sterol from fatty acid or methyl ester distilled black foot thereof. The existing extraction method can generally form emulsion when extracting solvent, has low sterol yield, large solvent consumption and low byproduct use value, and is hard to industrial production in large scale. The method is characterized by the follows: saponifying the fatty acid or the methyl ester distilled black foot thereof with sodium hydroxide water solution; adding with calcium chloride water solution into the obtained liquid soap to decompose into calcium soap; cleaning; drying; extracting with the solvent; separating extract liquor; solute separating to obtain the rough product of the sterol; and crystallizing and discoloring with the solvent to obtain the pure product of the sterol. The sterol has high yield and high byproduct use value, and is very applicable to industrial production in large scale.

Description

technical field [0001] The invention relates to the field of oleochemical industry, in particular to a method for extracting phytosterols from fatty acid or fatty acid methyl ester distillation blackfoot. Background technique [0002] Phytosterol is the main raw material of semi-synthetic steroidal drugs using high-tech biotechnology, and is also an effective natural nutritional factor used as a food nutrition enhancer. It is widely used in medicine, cosmetics, food, agriculture and other fields, and the market demand is positive. expanding day by day. At present, deodorized distillates of vegetable oils and tall oil pitch are used as raw materials for industrial extraction of phytosterols. With the increasing demand for sterols, the development of other bulk resources of phytosterols has been put on the agenda. [0003] Fatty acid or fatty acid methyl ester (a major biodiesel) is an important class of bulk chemical raw materials. Whether it is using oil alkali to refine so...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C07J75/00
Inventor 许荣年鲍忠定秦志荣厉秋岳郁听
Owner ZANYU TECH GRP CO LTD