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载铁炭分子筛中铁的存在形态

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Indexed by: Journal Article

Date of Publication: 1996-01-01

Journal: 煤炭转化

Included Journals: CSCD

Volume: 19

Issue: 1

Page Number: 53

ISSN: 1004-4248

Key Words: 炭分子筛; 铁物类; Mossbauer谱; 空分

Abstract: 用M ssbauer谱法测定了载铁炭分子筛中铁的存在形态。结果表明,经焙烧和还原后,担载在炭分子筛上的Fe(NO_3)_3有75%~77%转变为Fe_2O_3,FeO,Fe(NO_3)_2和Fe_3O_4,其中有益于提高炭分子筛空分选择性的磁性Fe_3O_4的含量约29%.

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