摘要
二甲基二环氧乙烷（ＤＭＤ）脱木素率超过７０％，白度达５０％ＳＢＤ以上，用ＤＭＤ处理硫酸盐木浆所形成的残余木素能溶解于随后的碱抽提段，含有ＤＭＤ（Ｔ）段的ＴＥＰＱＰ漂序的硫酸盐木浆ＴＣＦ漂白，其浆料白度可达９０％ＳＢＤ。
Dimethyldioxirane(T), as a source of “activated oxygen”, was tested. It may be used as a bleaching agent not containing any chlorine. A Kappa number reduction of more than 70% through a T stage bleaching was claimed for Masson pine kraft pulp. Dimethyldioxirane treatment renders the residual lignin soluble in the subsequent caustic extraction stage in a way much similar to the action of chlorine. Laboratory trials gave Masson pine kraft pulp of 90%SBD brightness via a totally chlorine free OTE PQP bleaching sequence.
出处
《中国造纸学报》
CAS
CSCD
北大核心
1998年第B12期14-20,共7页
Transactions of China Pulp and Paper
基金
国家自然科学基金
广东省自然科学基金
