首页>
外国专利>
Process for the production of polysulphide pulping liquor from pulp mill recovery smelt
Process for the production of polysulphide pulping liquor from pulp mill recovery smelt
展开▼
机译:由制浆厂回收冶炼厂生产多硫化物制浆液的方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
Sodium polysulphide is formed by reacting sodium sulphide and sodium sulphur-oxygen salts in the presence of carbon and oxygen. The invention is particularly applicable to reacting recovery furnace smelt from a polysulphide pulping process to form a mixture of sodium polysulphide and sodium carbonate which is substantially free from sodium sulphur-oxygen salts, so that dead-load sulphidity is substantially eliminated from the pulping liquor.
展开▼