000			019950000a22004090004500
904			_aBCO
905			_aC
908			_aJ
909			_aAS
914			_aFORES
082	0	4	_a41284
100	1		_957314 _aCHITTENDEN, A.E.
100	1		_9102890 _aPALMER, E.R.
260			_c1990
520			_aFive low density wood species. Cecropia peltata. Heliocarpus donell-smithii, Ochroma lagopus. Schizolobium parahyba and Spondias nombin from Belize, were examined to determine their suitability for the production of paper making pulps. Wood density, fibre dimensions and chemical composition of the wood species are reported. Each species individually and a mixture of all five species in equal parts by weight were pulped by the sulphate process and bleached by a three stage process of successive applications of chlorine, sodium hydroxide and calcium hypochlorite. The mixture, pulped using 20 per cent effective alkali, yielded 49 per cent of pulp. This pulp, when bleached, had a brightness of 72 (EEL blue filter) and strength characteristics suitable for writing and printing papers. The results of the pulping by cold soda and neutral sulphite semi-chemical processes are reported
650	1	4	_9139856 _aCECROPIA PELTATA
650	1	4	_9150065 _aHELIOCARPUS DONELL-SMITHII
650	1	4	_9156374 _aOCHROMA LAGOPUS
650	1	4	_9163974 _aSCHIZOLOBIUM PARAHYBUM
650	1	4	_9165302 _aSPONDIAS MOMBIN
650	1	4	_9160423 _aPRODUCTOS FORESTALES
650	1	4	_9139907 _aCELULOSA
650	1	4	_922334 _aBELICE
691			_9156374 _aOCHROMA LAGOPUS
691			_9319605 _aFOREST PRODUCTS
691			_9310152 _aCELLULOSE
691			_922335 _aBELIZE
692			_aOCHROMA LAGOPUS
692			_aPRODUIT FORESTIER
692			_aCELLULOSE
692			_aBELIZE
773	0		_tTropical Science (RU) _d1990 _gv.30(2) p.167-177
040			_aCR-TuBCO _cCR-TuBCO _bEs
245	1	0	_aPulping characteristics of five low density wood species grown in Belize
942			_cANA
003			CR-TuBCO
999			_c55244 _d55244