摘要 |
A process for production of 2,6-dimethylnaphthalene is disclosed; comprising the steps: (1) an acylation step where 2,4-dimetylisobutyrophenone is produced from m-xylene, propylene and carbon monoxide: (2) a hydrogenation step where the carbonyl group of the above 2,4-dimethylisobutyrophenone is hydrogenated: and (3) a dehydrogenation and cyclization step where the above hydrogenated product is subjected to dehydrogenation and cyclization to produce the desired 2,6-dimethylnaphthalene. The process enables efficiently producing high quality or high purity 2,6-dimethylnaphthalene. |
申请人 |
MITSUBISHI GAS CHEMICAL CO., INC., TOKIO/TOKYO, JP |
发明人 |
ABE, TAKAFUMI MITSUBISHI GAS CHEMICAL CO, MPANY;EBATA, SHUJI MITSUBISHI GAS CHEMICAL COMPA, NY;MACHIDA, HIROSHI MITSUBISHI GAS CHEMICAL COM, PANY;KIDA, KOICHI MITSUBISHI GAS CHEMICAL COMP, ANY, TAYUHAMA NIIGATA-SHI NIIGATA-KEN, JP |