1、B
In this work, a novel crosslinking process is proposed to utilize the light fractions in ET to produce B-COPNA resin. A crosslinking agent is selected from various reagents initially due to the results of molecular simulation and experiments.
2、B
Abstract: An efficient utilization strategy of ethylene tar (ET), the main by-product of the ethylene cracking unit, is urgently required to meet demands for modern petrochemical industry.
3、香豆酮树脂_百度百科
香豆酮，也称苯并呋喃、氧茚、β-苯并呋喃，是一个杂环芳香有机化合物，可通过氯乙酸对水杨醛发生O-烷基化，而后失水得到。
Coumarone Resin
Description: LESTAC-CR Series Coumarone resin is a brown to dark brown granule or flake thermoplastic resin, produced by ethylene and carbon fraction of C9 fractions, coal tar and ethylene re-tar distillates as raw materials.
The Merits and Demerits of Cumarone Resin
While cumarone resin is generally eco-friendly, its production may release volatile organic compounds (VOCs), posing environmental risks. Reducing the ecological footprint of its manufacturing process will be a critical focus for future development.
B
B-COPNA resin formation from ethylene tar light fractions: Process development and mechanical exploration by molecular simulation
B
B-COPNA resin formation from ethylene tar light fractions:Process development and mechanical exploration by molecular simulation
B
Efficient utilization strategy of ethylene tar (ET), the main by-product of ethylene cracking unit, is urgently required to meet demands for modern petrochemical industry.
B
An efficient utilization strategy of ethylene tar (ET), the main by-product of the ethylene cracking unit, is urgently required to meet demands for modern petrochemical industry.
Massive Preparation of Coumarone
In this paper, we report the large-scale preparation of coumarone-indene resin-based hyper-crosslinked polymers (CHCPs) via Friedel-Crafts alkylation. A maximum surface area of 966 m2·g−1 is achieved, which is comparable with that of coal tar-based porous organic polymers.
Within the vast realm of chemical industry, ethylene tar and cumarone resin stand as two crucial organic synthesis intermediates. Ethylene tar has garnered significant attention due to its unique properties, while its block form imparts additional industrial application value. This article explores the characteristics of ethylene tar, the formation mechanism of its block morphology, and its vital role in chemical production.
Ethylene tar is a complex organic mixture primarily composed of saturated hydrocarbons, aromatic hydrocarbons, and compounds containing heteroatoms such as nitrogen, oxygen, and sulfur. These components are separated during petroleum refining and undergo pyrolysis at high temperatures, yielding a variety of products with distinct chemical properties. These include essential monomers like ethylene, propylene, and butadiene, as well as various low-molecular-weight polymers.
The block morphology of ethylene tar forms under specific conditions. When heated to certain temperatures and pressures, the macromolecular structures within ethylene tar gradually decompose into smaller molecules. These molecules aggregate into larger clusters, ultimately solidifying into block-like material. This process resembles crystal growth, but due to the presence of numerous amorphous structures and impurities in ethylene tar, the resulting blocks are typically rougher and darker in color compared to crystals.
Block-form ethylene tar finds extensive applications in chemical production. Firstly, it serves as a raw material for manufacturing specialized plastics and rubbers. For instance, through polymerization reactions, ethylene tar can produce polyethylene and polypropylene, materials renowned for their mechanical strength and chemical stability, widely used in packaging, construction, and other fields. Secondly, it is employed in the production of dyes and pigments, which play critical roles in textiles and printing industries. Additionally, certain compounds in ethylene tar exhibit antibacterial and antifungal activities, making them valuable as pharmaceutical intermediates.
challenges persist in the production and application of ethylene tar. Its purity often remains unsatisfactory due to high impurity content, affecting the quality and performance of final products. many compounds in ethylene tar pose health risks, necessitating stringent safety measures during handling. Environmental pollution associated with its production also presents a significant challenge, as achieving green and low-carbon manufacturing remains an urgent goal.
To address these issues, researchers are actively exploring new technologies and methods. For example, refining distillation and fractionation processes can enhance ethylene tar purity; incorporating catalysts or additives reduces harmful substances, improving bioactivity and safety; adopting eco-friendly solvents and catalysts enables greener, low-carbon production. In the future, advancements in science and technology are expected to yield more efficient, safe, and environmentally friendly production pathways, broadening the prospects for ethylene tar applications.
As a key organic synthesis intermediate, block cumarone resin derived from ethylene tar occupies a pivotal position in the chemical industry due to its unique physical properties and diverse applications. Ethylene tar, refined from crude oil, can be transformed into high-value-added products, contributing to human progress. Nevertheless, ongoing innovation and exploration are required to overcome production challenges, ensuring the green, efficient, and safe development of ethylene tar in the chemical sector.
