Purification method for coal tar maltha
A technology for coal tar and soft pitch, which is applied in the field of coal tar soft pitch purification, can solve the problems of unstable needle coke product quality and the requirement of ultra-high power electrode level, etc., to improve the grade, simplify cooling and forming, and save energy. Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Example Embodiment
[0014] Embodiment 1: The implementation steps of the method of the present invention are:
[0015] The coal tar that meets the YB / T5075—2010 standard of metallurgical standard is processed by conventional means, and the coal tar with a softening point of 30-40℃ is cut, and the coal tar is sent to the next-wall coal tar extraction tower through a temperature-resistant and viscosity-resistant reciprocating pump ;
[0016] The naphthalene oil cut from industrial grade N-methylacetamide and tar in one tower is heated to 110-250°C through a reboiler respectively.
[0017] The naphthalene oil cut from industrial grade N-methylacetamide or tar in one tower is mixed with a static mixer according to a weight ratio of 1:5 to become an extractant.
[0018] The extractant and coal tar pitch are mixed by a static mixer at a weight ratio of 1:1, and after thorough mixing, they are added from the upper part of the next-wall coal tar tar extraction tower; the sulfur and nitrogen compounds in the coal...
Example Embodiment
[0020] Embodiment 2: The implementation steps of the method of the present invention are:
[0021] The coal tar that meets the standard YB / T5075—2010 is processed by the normal pressure one-tower process, and the coal tar with a softening point of 30-40℃ is cut, and the coal tar is sent to the next-door coal through a temperature-resistant and viscosity-resistant reciprocating pump Bitumen extraction tower;
[0022] The wash oil cut from the 200# solvent oil and tar tower 1 is heated to 110-250℃ through the reboiler respectively.
[0023] The wash oil cut from 200# solvent oil or tar in the first tower is mixed with a static mixer according to a weight ratio of 1:5.5 to become an extractant.
[0024] The extractant and coal tar pitch are mixed in a static mixer at a weight ratio of 1:1.05, and after thorough mixing, they are added from the upper part of the next-wall coal tar pitch extraction tower; the sulfur and nitrogen compounds in the coal tar pitch are combined with the extracta...
PUM
Property | Measurement | Unit |
---|---|---|
Softening point | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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