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| Heat Dispersion of Sticky Contaminants and Their Removal by Post-flotation Part.2 Dissolved and Colloid Substances and Suspended Solids |
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| DOI：10.11980/j.issn.0254-508X.2011.09.001 |
| Key Words:heat dispersing control of stickies dissolved and colloidal substances suspended solids |
| Fund Project:本课题为山东省“泰山学者”建设工程专项经费资助项目（TS200637022）；国家自然科学基金（30972327）和“教育部新世纪优秀人才”支持计划资助项目（NCET-08-0882）。 |
| Author Name | Affiliation | | 于海龙1 | 1.山东轻工业学院制浆造纸科学与技术省部共建教育部重点实验室,山东济南,250353 | | 高 扬1,2 | 1.山东轻工业学院制浆造纸科学与技术省部共建教育部重点实验室,山东济南,250353；2.华泰集团有限公司,山东广饶,257335 | | 张凤山2 | 2.华泰集团有限公司,山东广饶,257335 | | 秦梦华1 | 1.山东轻工业学院制浆造纸科学与技术省部共建教育部重点实验室,山东济南,250353 |
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| Abstract:In this paper, effect of heat-dispersing on dissolved and colloidal substances, and suspended solids was quantitatively investigated by varying temperature, disc clearance, and inlet pulp consistency. Furthermore, their removal in subsequent post-flotation was examined. The results showed that raising temperature, reducing disc clearance, or increasing pulp consistency improved significantly the dispersion of sticky substances, and increased amount of DCS in deinked pulp. Under temperature of 100℃, disc clearance of 0.3 mm, and pulp consistency of 30%, DCS, dissolved substances, and colloidal substances were increased by 13.6%~16.8%, 5.7%~5.9%, and 60.7%~65.3%, respectively. DS were as a major component in DCS, although CS were showed with a higher increasing rate after dispersion. SS were increased significantly after heat-dispersing, reached to 21.7%~26.0%. The post-flotation removed about 45.2%~46.7% of SS, and 6.1%~6.8% of CS, while only small amount of DS was removed. |
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