发明名称 |
Process for the treatment of byproducts obtained in the preparation of phthalic anhydride |
摘要 |
Byproducts obtained in the preparation of phthalic anhydride are treated by heating the byproducts to a temperature sufficient to maintain the byproducts in a molten state and thereafter atomizing the molten byproducts with atomizing air having a temperature of at least 60 DEG C. for combustion. The byproducts may be low boiling point and/or high boiling point fractions obtained in the purification step by distillation of crude phthalic anhydride produced by the partial oxidation of ortho-xylene or naphthalene.
|
申请公布号 |
US4181489(A) |
申请公布日期 |
1980.01.01 |
申请号 |
US19770853766 |
申请日期 |
1977.11.21 |
申请人 |
MITSUI TOATSU CHEMICALS INC |
发明人 |
SUZUKI, TAKAAI;TERAJI, YOSHIAKI;TOYODA, YOSHIAKI |
分类号 |
F23G7/04;A62D3/00;C07C51/573;F23G7/00;(IPC1-7):F23D11/44 |
主分类号 |
F23G7/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|