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Extraction of phytosterols from tall oil soap using a solvent selected from dibromomethane, bromoform, tetrabromomethane or a combination thereof

一种植物甾醇、二溴甲烷的技术，应用在溶剂萃取、甾族化合物、从废料中回收脂油/脂肪酸等方向，能够解决多组分废溶剂复杂性成问题、回收高度水溶性的溶剂复杂等问题

Inactive Publication Date: 2018-09-04
STORA ENSO OYJ
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the complexity of recycling multi-component spent solvents is very problematic in these methods
Also, the recovery of highly water-soluble solvents such as acetone and methanol from water mixtures is very complicated

Method used

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  • Extraction of phytosterols from tall oil soap using a solvent selected from dibromomethane, bromoform, tetrabromomethane or a combination thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Mix 1 g of tall oil soap with dibromomethane in a ratio of 1:2. Phase separation was done by centrifugation and samples were taken from the lower (heavier) phase. Samples were evaporated to dryness and analyzed using a UPLC-ELSD system with a gradient of water, methanol and acetonitrile as solvents, using an Acquity BEH C18 2.1x50mm 1.7μm as a column ( figure 1 ). For the sample extracted with dibromomethane, the retention time of β-sitosterol was 2.05.

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Abstract

The present invention relates to extraction of phytosterolsfrom alkaline tall oil soap which is obtained from the Kraft process black liquor by skimming.In the method according to the present invention, phytosterols are extracted using dibromomethane, bromoform, tetrabromomethaneor a combination thereof.

Description

technical field [0001] The present invention relates to the extraction of phytosterols from alkaline tall oil soap obtained by skimming from kraft process black liquor. In the method according to the present invention, dibromomethane, bromoform, tetrabromomethane or a combination thereof are used to extract phytosterols. Background technique [0002] Tall oil soap (TOS) is a by-product of the kraft pulping process. The soap is mainly composed of sodium salts of fatty acids, sodium salts of diterpene (abietic) acids, free fatty acids, free abietic acids and unsaponifiable neutral compounds such as fatty alcohols, sterols, sterol esters and waxes. Neat soaps typically have a water content of 25 to 45%, such as 30 to 35%. The pH of the soap is usually in the range of 12 to 13 due to the presence of entrained black liquor. In industrial practice, soaps are usually acidified with sulfuric acid to produce crude tall oil (CTO), which is a commodity. Sterols, especially phytoste...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07J75/00C11B13/02C07J9/00C11B3/12D21C11/00
CPCC07J9/00C11B3/12D21C11/00C11B3/006Y02W30/74C07J75/00C11B13/005C11B3/001D21C11/0007B01D3/143B01D11/0492B01D2257/2062
Inventor J.卡瓦卡
Owner STORA ENSO OYJ
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