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溶解浆的生产过去以亚硫酸盐法蒸煮为主,由于环境的原因,亚硫酸盐法蒸煮已较少采用,而采用预水解硫酸盐法蒸煮。开始只采用间歇蒸煮技术,但由于溶解浆的需求不断增加,开发了基于预水解硫酸盐法蒸煮的连续蒸煮技术。这一新的解决方案已经通过广泛的实验室实验,随后在最初设计生产漂白硫酸盐商品浆的浆厂应用。新设计的工艺和设备已经解决了先前尝试在溶解浆生产中采用连续蒸煮技术遇到的负面问题。新建和现有的浆厂可以从该新工艺解决方案中受益,这也使得溶解浆与造纸用浆可共用同一制浆生产线。
In the past, the production of dissolving pulp was mainly carried out by the sulfite method. For environmental reasons, the sulfite method has been used less frequently, and the sulfated method has been used for cooking. Only batch cooking was used initially, but continuous cooking based on prehydrolysis kraft cooking was developed due to the increasing demand for dissolving pulp. This new solution has been extensively laboratory tested and subsequently applied in pulp mills originally designed to produce bleached kraft pulp. The newly designed processes and equipment have solved the negative problems previously encountered with continuous cooking techniques in dissolving pulp production. New and existing pulp mills can benefit from this new process solution, which also allows the same pulping line to be used for dissolving pulp and paper pulp.