Invention Grant
US4430194A Method for the production of a highly aromatic pitch-like coal by-product
失效
用于生产高度芳族沥青样煤副产物的方法
- Patent Title: Method for the production of a highly aromatic pitch-like coal by-product
- Patent Title (中): 用于生产高度芳族沥青样煤副产物的方法
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Application No.: US289936Application Date: 1981-08-04
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Publication No.: US4430194APublication Date: 1984-02-07
- Inventor: Jafar Omran , Karl-Heinz Koch
- Applicant: Jafar Omran , Karl-Heinz Koch
- Applicant Address: DEX Frankfurt
- Assignee: Rutgerswerke Aktiengesellschaft
- Current Assignee: Rutgerswerke Aktiengesellschaft
- Current Assignee Address: DEX Frankfurt
- Priority: DEX3033228 19800904
- Main IPC: C10B57/04
- IPC: C10B57/04 ; C10C3/00 ; C10G1/04 ; C10G1/00 ; C10G73/00
Abstract:
An improvement in the method for the production of a highly aromatic pitch-like coal by-product by dissolving comminuted coal or similar solid carbon-containing raw materials with aromatic solvents at elevated temperature is disclosed wherein the solid materials are dissolved at atmospheric pressure in aromatic compound mixtures of coal origin with an average boiling point above 350.degree. C. and recycling of the condensable fractions of the reaction gas. If the occasion arises, further aromatic solvents may be added to the suspension.
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