公开(公告)号：US4153502A

公开(公告)日：1979-05-08

申请号：US901589

申请日：1978-05-01

Applicant: Walter A. Mueller

Inventor： Walter A. Mueller

IPC: C01B17/34 ,  D21C11/12 ,  D21C1/00 ,  D21C3/02 ,  D21C3/24 ,  D21C11/04

CPC classification number: D21C11/122 ,  C01B17/34 ,  Y10S423/03

Abstract: 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.

Abstract translation: 多硫化钠通过在碳和氧的存在下使硫化钠和硫磺 - 硫酸钠反应而形成。 本发明特别适用于使来自多硫化物制浆方法的回收炉熔体与基本上不含硫 - 氧盐的钠多硫化钠和碳酸钠的混合物反应，从而从制浆液中基本上消除了负载硫化物。