Kraft and sulfite pulping processes are the two primary chemical methods used in the pulp and paper industry to separate cellulose fibers from wood by removing lignin. The kraft process uses an alkaline solution of sodium hydroxide and sodium sulfide, producing strong and durable pulp suitable for packaging and industrial applications. In contrast, the sulfite process uses an acidic b... https://www.pulpandpaper-technology.com/articles/kraft-and-sulfite-pulping-processes