METHOD FOR PRODUCING REFINED METHANOL FROM THE CONDENSED PULP OF SULPHATE COOKING
收藏国家林业和草原科学数据中心2023-02-12 更新2024-03-07 收录
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资源简介：
The invention relates to a method for making purified methanol from a liquefied fraction obtained from a sulfate pulp process and containing methanol and sulfur contaminants， its main sulfur contaminants being methyl mercaptan， dimethyl sulfide and dimethyl disulfide. According to the invention， the fraction is subjected to an oxidation treatment， followed by separating the methanol by distillation or water vapor distillation from distillation residue containing sulfur-bearing oxidation products. From the distillation residue can be crystallized dimethyl sulfone produced in oxidation and obtained as a by-product of the process. The invention relates to a method for making purified methanol from a liquefied fraction obtained from a sulfate pulp process and containing methanol and sulfur contaminants， its main sulfur contaminants being methyl mercaptan， dimethyl sulfide and dimethyl disulfide. According to the invention， the fraction is subjected to an oxidation treatment， followed by separating the methanol by distillation or water vapor distillation from distillation residue containing sulfur-bearing oxidation products. From the distillation residue can be crystallized dimethyl sulfone produced in oxidation and obtained as a by-product of the process.
提供机构：
国家林业和草原科学数据中心
创建时间：
2023-02-12
