Method for extracting montan wax from lignite

A production method and a montan wax technology are applied in the chemical industry and can solve the problems of small output, difficulty in preparing montan wax, and the like

Active Publication Date: 2009-05-20
河南华泰粮油机械股份有限公司
View PDF0 Cites 33 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present invention is to provide a production method for extracting montan wax from lignite, which can effectively solve the problems of difficult preparation of montan wax, small output, and failure to meet actual needs. The technical solution The solution is to pulverize the lignite into granules, and send it to the extractor for extraction after drying. The lignite particles after extracting the montan wax are sent to the continuous drying desolventizer to remove the organic solvent and come out of the dry desolventizer. The lignite particles are used to extract humic acid, and the organic solvent rich in montan wax is subjected to three-effect separation. After removing 95% of the organic solvent, it is then concentrated in a vacuum to obtain montan wax. After obtaining the montan wax, the solvent is recovered and recycled. The invention has a simple process, can be mass-produced industrially, has high production efficiency, saves materials, is low in cost, and has no environmental pollution. It is a great creation in the preparation of montan wax, and its application has huge economic and social benefits.

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for extracting montan wax from lignite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0008] Shown in accompanying drawing, the present invention is realized by the following steps:

[0009] 1. Crushing: The lignite mined from the mine has different volumes. For large lump lignite, it is not conducive to granulation in the subsequent process section, and it needs to be further crushed into a powder with a particle size of 2-8mm;

[0010] 2. Granulation: In order to increase the contact area between coal and solvent, ensure the penetration gap and penetration speed, and make full use of materials, at the same time, for some fine dust lignite with particle size less than 2mm, use granulation equipment to make the diameter 2-8mm left and right lignite particles;

[0011] 3. Drying: Since the raw material contains about 40% water, the water in the lignite seriously affects the penetration and extraction effect of th...

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 diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
melting pointaaaaaaaaaa
Login to view more

Abstract

The invention relates to a production method used for extracting lignite wax from lignite, which can effectively solve the problems that the lignite wax is difficult to be prepared, has small yield and can not meet the practical requirements. The technical proposal used for solving the problems is as follows: the lignite is crushed and prepared into grains, dried and sent to an extractor for carrying out extraction; the lignite grains with the lignite wax extracted are sent to a continuous dry desolventizer so as to remove an organic solvent; the lignite grains coming out of the dry desolventizer are used for extracting a humic acid; three-effectiveness separation of the organic solvent rich in lignite wax is carried out so as to remove 95 percent of the organic solvent; subsequently, vacuum condensation is carried out so as to obtain the lignite wax; and subsequently, the solvent is recovered and circularly used. The method has simple process, can carry out production of large scale in batches, has high production efficiency, low cost and no environmental pollution, saves material, is a great creation on the preparation of lignite wax, and the application of the method has huge economical and social benefits.

Description

1. Technical field [0001] The invention relates to the field of chemical industry, in particular to a production method for extracting montan wax from lignite. 2. Background technology [0002] Montan wax is a rare mineral. Germany first began to extract wax from lignite in 1897. Therefore, it is also called Montal wax abroad. It is a mineral wax containing wax, resin and asphalt. Montan wax has a relatively hard texture, high melting point, acid resistance, stable chemical properties, good gloss and electrical insulation, and is easily soluble in organic solvents. Its melting point is 75-86 ° C, density (20 ° C 0.98-1.03 g / cm3, wax The main components: wax esters composed of C16-C34 acids and C23-C30 alcohols; long-chain fatty acids (C20-C34) and alkanes (C23-C33). The components of the resin are sterols and terpenes. [0003] Montan wax is widely used as a substitute and supplement for expensive natural animal and vegetable waxes. In the daily chemical industry, it is wid...

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): C10G73/00
Inventor 闫子鹏李定忠申勇刚闫子党薛锦峰
Owner 河南华泰粮油机械股份有限公司
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