Bleached magnefite pulp from kenaf/ Chien Chu, Naiyana Niyomwan, Anchalee Puangvichit
โดย: Chu, Chien
ผู้แต่งร่วม: Niyomwan, Naiyana | Puangvichit, Anchalee
Language: English ชื่อชุด: Class. Invest. no. 2ข้อมูลการพิมพ์: Bangkok : Thailand Institute of Scientific and Technological Research, 1971 หัวเรื่อง: Bleaching | Kenaf | Pulpsสารสนเทศออนไลน์: Click here to access full-text สาระสังเขป: Bleached chemical pulp was obtained by magnesium bisulphite prosces from kenaf stalks of both Cuban variety (Hibiscus cannibinus) and Thai variety (Hibiscus sabdariffa). Kenaf chips were cooked at 146-150 degree Celsius in magnesium bisulphite solution at liquor to chip ratio 4: 1 and pH value 3-4 for 4.5 nours. The cooking solution contained a total of 16-18% SO2 on ovendry chips. Cooking yield was about 50 per cent. Bleaching to about 80% brightiness was obtained with about 8% chlorine. The bleached yield was 42 per cent.สาระสังเขป: The physical properties of bleached pulp indicated good quality superior to hardwood kraft pulp and comparable to softwood sulphite pulp except for tearing strength. - Authors.
| ชนิดของทรัพยากร | Location | Call number | สถานะ | Last seen | Copy No. | บาร์โค้ด |
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วว. เทคโนธานี | Available | 2018-08-31 | 1 | RP1971/265 | |
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วว. เทคโนธานี | Available | 2018-08-31 | 2 | RP1971/265-2 |
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