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Yuan-yuan Jia School of Material Chemical Engineering Tianjin University of Science Technology 《天津科技大学学报》2004,19(Z2)
1.INTRODUCTIONWheat straw is the main raw material in northern China, and its black liquor is blamed for contributing serious pollution to the environment. A technical breakthrough has been achieved in the field of chemical recovery for wheat straw pulping after more than twenty years' developments and practices. Wheat straw pulp chemical recovery projects with the pulping capacity of 75-100t/d have been put into 132--production gradually in recent years. Evaporation of wheat straw pulp… 相似文献
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本文探讨了酱油引起管式和片式杀菌器传热面污垢形成的机理及由此而引起的不良后果,介绍了一种新型酱油杀菌器的防垢结构. 相似文献
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