Desulfurization refining method of sulfate turpentine with ultra-low sulfur content

A technology of sulfate turpentine and refining method, which is applied in the direction of turpentine, chemical instruments and methods, etc., can solve problems such as difficulty in obtaining pinene products with ultra-low sulfur content, and achieve the effects of avoiding physical damage, high adsorption capacity, and simple operation

Inactive Publication Date: 2019-05-17
厦门中坤化学有限公司
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] There are many desulfurization and refining methods for sulfate turpentine, such as rectification, alkali washing, adsorption, oxidation, etc., but it is difficult to obtain pinene products with ultra-low sulfur content

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

[0023] 174kg of low-sulfur pinene (sulfur content 107.10ppm) was dropped into a fixed bed of fruit shell activated carbon filled with 25kg, and after 19h of circulating material was opened, 158kg of pinene was released, and the sulfur content was 9.24ppm.

Embodiment 2

[0025] 200kg of low-sulfur pinene (sulfur content 77.12ppm) was dropped into a fixed bed of fruit shell activated carbon filled with 50kg, and after 17 hours of circulation of the material by the circulation pump, 177kg of pinene was released, and the sulfur content was 4.95ppm.

Embodiment 3

[0027] 250kg of low-sulfur pinene (sulfur content 47.82ppm) was dropped into a fixed bed of fruit shell activated carbon filled with 50kg, and after the circulation pump was turned on to circulate the material for 15 hours, 215kg of pinene was released, and the sulfur content was 6.87ppm.

[0028] It can be seen from the examples that the present invention has simple operation steps and is industrially feasible.

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

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
Login to view more

Abstract

The invention provides a desulfurization refining method of sulfate turpentine with the ultra-low sulfur content, and relates to sulfate turpentine. The desulfurization refining method comprises the steps that the sulfate turpentine is rectified and separated through a vacuum rectifying tower to obtain pinene; the pinene is hit into a fixed bed filled with shell activated carbon to be soaked, thenthe pinene is replaced repeatedly and cyclically in the fixed bed through a circulating pump, a pinene material is released from the side line of the circulating pump, ultra-low-sulfur pinene is obtained, the fixed bed is purged through high-temperature water vapor and nitrogen, thus the activated carbon is regenerated, and the desulfurization-refined sulfate turpentine with the ultra-low sulfurcontent is obtained. The small granular shell activated carbon is adopted as an adsorbing agent, the activated carbon has a developed gas structure and is high in absorbing ability, large in strength,stable in chemical property and durable, sulphur residues in the sulfate turpentine are effectively adsorbed, material diffusion is accelerated through the circulating pump, thus materials are distributed evenly, one the one hand, the adsorbing effect of the activated carbon is enhanced, on the other hand, physical damage of stirring on the activated carbon is avoided, operation is easy, energy consumption is small, and industrial feasibility is achieved.

Description

technical field [0001] The invention relates to sulfate turpentine, in particular to a method for desulfurizing and refining sulfate turpentine with ultra-low sulfur content. Background technique [0002] Kraft turpentine is a by-product of pulp produced from pine wood through the kraft process. Its output increases with the demand for pulp. The main components are α-pinene, β-pinene and Δ 3 -carene. [0003] Due to the high cost of artificial collection of natural gum turpentine, its output will decline in the long run. [0004] Replacing natural gum turpentine with sulfate turpentine has high economic value, but sulfate turpentine contains a large amount of sulfur-containing organic matter, has a foul smell, and is dark in color. It needs to be desulfurized and refined to a certain specification before it can replace gum turpentine. [0005] There are many desulfurization and refining methods for sulfate turpentine, such as rectification, alkali washing, adsorption, oxid...

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 Applications(China)
IPC IPC(8): C09F3/02
Inventor 郑艺辉张剑平郑祎敏魏文达
Owner 厦门中坤化学有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap