Pretreatment with alkali before chlorination was studied in bleached acidsulfite poplar pulp production.
对酸性亚硫酸盐法杨木浆的氯化前碱处理进行了研究。
2
The active cooking chemicals in the sulfite process are sulfur dioxide, sulfurous acid, and calcium bisulfite.
亚硫酸盐法制浆过程中活性化学物质是二氧化硫、硫酸以及酸性亚硫酸钙。
3
A method for synthesizing sodium sulfoacetic is discussed, which sodium sulfoacetic is synthesized with sodium sulfite and ethyl monochloro acetate, with sodium sulfite and chloroacetic acid.