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Mixed solvent and method for extracting montan wax

A technology of mixed solvent and montan wax, which is applied in the recovery/refining of mineral wax, petroleum wax recovery, petroleum industry, etc., can solve the problems of high cost and high toxicity, and achieve low processing cost, high product quality and simple process. Effect

Inactive Publication Date: 2009-08-05
刘润民 +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to overcome the problems of high toxicity, high cost and easy emulsification faced by extracting montan wax with benzene in the prior art, the present invention aims to provide a mixed solvent for extracting montan wax

Method used

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  • Mixed solvent and method for extracting montan wax
  • Mixed solvent and method for extracting montan wax
  • Mixed solvent and method for extracting montan wax

Examples

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Embodiment 1

[0033] Get industrial-grade raw materials according to the following formula: 50 grams of octanol, 10 grams of toluene, and 40 grams of methanol are mixed to obtain a mixed solvent.

Embodiment 2

[0035] Get industrial-grade raw materials according to the following formula: 30 grams of octanol, 40 grams of toluene, and 30 grams of ethanol are mixed to obtain a mixed solvent.

Embodiment 3

[0037] Get industrial-grade raw materials according to the following formula: 10 grams of octanol, 20 grams of toluene, and 70 grams of isopropanol are mixed to obtain a mixed solvent.

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Abstract

The invention provides mixed solvent extracting lignite wax and an extraction method, wherein the mixed solvent comprises the following raw materials: 10-70 mass percent of octanol, 10-70 mass percent of methylbenzene and 10-70 mass percent of alcohols. Lignite is pelletized and then is extracted by the mixed solvent, and the lignite wax is obtained by dehydration, concentration, evaporation and dryness. The lignite wax is extracted in the innoxious environment, and the extracted solvent can be recovered, thereby the mixed solvent is safe and reliable, the extraction cost is low, the process condition during the whole extraction process is more common, the process is simple, the operation is convenient, the comprehensive processing cost is low, the processing ability is strong, and the product yield is higher; in addition, the extraction method can not produce emulsion phenomenon during the whole extraction process, and is an effective, low-cost, massive and innoxious extraction process.

Description

technical field [0001] The invention relates to a method for extracting montan wax, in particular to a method for extracting montan wax from lignite by using a mixed solvent containing octanol, and belongs to the technical field of plant extraction. Background technique [0002] Montan wax is a natural hard wax extracted from lignite with organic solvents. It is widely used in many fields and is a relatively rare chemical raw material. At present, most of the montan wax produced at home and abroad use benzene as the extraction solvent. Due to the high toxicity of benzene, it is not only harmful to human health, but also seriously pollutes the environment. In addition, during the extraction process of montan wax, it is prone to emulsification and affects product yield and product quality. At the same time, the high-cost production process also limits the export and application of montan wax. Therefore, it is urgent to seek low-toxic or non-toxic solvents to replace benzene to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G73/22C10G73/23
Inventor 刘润民高云李利民沈忱高宇
Owner 刘润民
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