Raw materials for more paper: Pulping processes and procedures recommended for testing. Findings of an FAO pulp and paper consultation Rome, Italy, December 1952
Gespeichert in:
| Format: | Buch |
|---|---|
| Sprache: | English |
| Veröffentlicht: |
Rome
FAO organization of the UN
1953
|
| Schriftenreihe: | Food and Agriculture Organization: FAO forestry and forest products studies
6 |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | XII, 171 S. Ill. |
Internformat
MARC
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| 245 | 1 | 0 | |a Raw materials for more paper |b Pulping processes and procedures recommended for testing. Findings of an FAO pulp and paper consultation Rome, Italy, December 1952 |
| 264 | 1 | |a Rome |b FAO organization of the UN |c 1953 | |
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| 650 | 4 | |a Papeterie | |
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Datensatz im Suchindex
| _version_ | 1804121305379766272 |
|---|---|
| adam_text | FAO Forestry and Fores! Produces Sfudy
No 6
RAW MATERIALS
for
MORE PAPER
Pulping Processes and Procedures
recommended for Testing
Findings of an FAO
Pulp and Paper Consultation
Rome, Italy, December 1952
Institut fur
Cellulosechemie
FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS
Rome, Italy April, 1953
Fachbibliothek Zellstoff und Papier
TU Darmstadt
CONTENTS
PART A - PULPING PROCESSES FOR FIBROUS RAW MATERIALS
FROM NEW SOURCES
Chapter P ae
I Fibrous raw materials in current use for pulp and paper 3
Conifers 3
Broadleaved woods 3
Non-wood materials 6
Technical feasibility of broadening the raw material field 8
II - Pulping processes for wood 10
Groundwood 12
Semichemical pulps 15
Chemigroundwood 15
Cold caustic soda 16
Neutral sulfite r7
Sulfate semichemical 21
Chemical pulps 21
Sulfate 22
Soda t 26
Sulfite 26
Other pulping processes 29
III - Pulping processes for non-wood materials 30
Procurement and storage of agricultural residues 31
Raw material preparation (including depithing of bagasse) 33
Processes in commercial use 35
Lime 35
Soda 37
Cold caustic soda 39
Sulfate 4°
Neutral sulfite or monosulfite 42
Caustic soda - chlorine 44
Mechano-chemical 4^
IV Suitability of fibrous raw materials for different paper products 49
General considerations 49
Morphological properties 49
Chemical properties 5°
Coniferous wood fibres 50
Broadleaved wood fibres 51
Non-wood plant fibres • 51
Suitability of short fibre pulps for newsprint, kraft wrapping and
container board 54
Newsprint 54
Kraft paper and board 55
Specific uses of various pulps 55
Introduction to Tables 3 to 9 56
ix
Chapter Page
Table 3 - Spruce, fir, hemlock and araucaria pulp 57
Table 4 - Pine and Douglas fir pulp 58
Table 5 - Temperate broadleaved pulp 59
Table 6 - Eucalypt pulp 60
Table 7 - Tropical broadleaved mixture pulp 61
Table 8 - Straw and bagasse pulp 62
Table 9 - Bamboo pulp 63
V - Process cost estimates for pulping fibrous raw materials 64
Cost data sheets 67
Wood: coniferous wood 67
temperate broadleaved woods 70
tropical broadleaved woods 72
Non-wood: straw 73
bagasse 80
• bamboo 83
VI - Case histories 84
Tropical broadleaved woods 84
Raw material 84
Processes 87
Applications and requirements 89
Products • 90
Recommendations 91
Conclusions 91
Straw 93
Introduction 93
Raw material 94
Processes used in current practice 95
Products 100
Recommendations 100
Conclusions 100
Sugarcane bagasse 101
Introduction 101
Raw material 101
Processes used in current practice 103
Products 106
Recommendations 107
Conclusions 107
Bamboo io7
Raw material io7
Processes used in current practice 110
Products 111
Recommendations 112
Conclusions 112
VII - General conclusions and recommendations
Appendix: conversion factors
113
1 t6
PART B - PROCEDURES RECOMMENDED FOR THE INVESTIGATION
OF NEW FIBROUS RAW MATERIALS FOR PAPER
Chapter Page
VIII - Scope of part b 121
IX (- Collection of samples 123
Botanical identification and general description 123
Sampling 123
Wood 123
Other fibrous materials 125
X - Raw materials testing procedures 127
Wood 127
General examination 127
Microscopical examination 128
Physical test 128
Chemical tests 13°
Other fibrous materials 132
General examination 132
Microscopical examination 132
Physical properties 132
Chemical examinations 133
XI - Pulping procedures t 136
Processes for wood 13^
Groundwood pulping 136
Semichemical pulping 137
Sulfate pulping 140
Soda pulping H2
Sulfite pulping 143
Processes for straw, bagasse, bamboo and other non - wood materials 145
Lime pulping H5
Soda pulping 146
Sulfate pulping 146
Sodium sulfite pulping 147
Caustic soda - chlorine pulping (Celdecor-Pomilio process) 147
Mechano-chemical pulping 149
XII - Bleaching 151
Multi-stage bleaching 151
General aspects 151
Orienting bleaching T53
Final bleaching trials 155
Single-stage bleaching 156
Cold caustic pulp 156
Neutral sulfite semichemical pulp 156
Sulfate and sulfite pulps 157
XI
Groundwood bleaching 157
Hypochlorite bleaching 157
Sodium peroxide bleaching 158
Zinc hydrosulfite treatment 158
Testing methods 158
Brightness 158
Viscosity 159
XIII - Pulp testing procedures 160
Chemical tests 160
Physical tests 160
Appendices
1 Wood anatomical investigation procedures 162
2 Field notes for trees 165
3 Field notes for agricultural residues 166
4 Procedure for representative sampling of a species 167
5 List of suggested reference pulps 172
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| id | DE-604.BV007116286 |
| illustrated | Illustrated |
| indexdate | 2024-07-09T16:55:52Z |
| institution | BVB |
| language | English |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-004533090 |
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| physical | XII, 171 S. Ill. |
| publishDate | 1953 |
| publishDateSearch | 1953 |
| publishDateSort | 1953 |
| publisher | FAO organization of the UN |
| record_format | marc |
| series | Food and Agriculture Organization: FAO forestry and forest products studies |
| series2 | Food and Agriculture Organization: FAO forestry and forest products studies |
| spelling | Raw materials for more paper Pulping processes and procedures recommended for testing. Findings of an FAO pulp and paper consultation Rome, Italy, December 1952 Rome FAO organization of the UN 1953 XII, 171 S. Ill. txt rdacontent n rdamedia nc rdacarrier Food and Agriculture Organization: FAO forestry and forest products studies 6 Matières premières Papeterie Papier - Industrie Fibers Papermaking Pulping Food and Agriculture Organization: FAO forestry and forest products studies 6 (DE-604)BV004845022 6 HEBIS Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=004533090&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Raw materials for more paper Pulping processes and procedures recommended for testing. Findings of an FAO pulp and paper consultation Rome, Italy, December 1952 Food and Agriculture Organization: FAO forestry and forest products studies Matières premières Papeterie Papier - Industrie Fibers Papermaking Pulping |
| title | Raw materials for more paper Pulping processes and procedures recommended for testing. Findings of an FAO pulp and paper consultation Rome, Italy, December 1952 |
| title_auth | Raw materials for more paper Pulping processes and procedures recommended for testing. Findings of an FAO pulp and paper consultation Rome, Italy, December 1952 |
| title_exact_search | Raw materials for more paper Pulping processes and procedures recommended for testing. Findings of an FAO pulp and paper consultation Rome, Italy, December 1952 |
| title_full | Raw materials for more paper Pulping processes and procedures recommended for testing. Findings of an FAO pulp and paper consultation Rome, Italy, December 1952 |
| title_fullStr | Raw materials for more paper Pulping processes and procedures recommended for testing. Findings of an FAO pulp and paper consultation Rome, Italy, December 1952 |
| title_full_unstemmed | Raw materials for more paper Pulping processes and procedures recommended for testing. Findings of an FAO pulp and paper consultation Rome, Italy, December 1952 |
| title_short | Raw materials for more paper |
| title_sort | raw materials for more paper pulping processes and procedures recommended for testing findings of an fao pulp and paper consultation rome italy december 1952 |
| title_sub | Pulping processes and procedures recommended for testing. Findings of an FAO pulp and paper consultation Rome, Italy, December 1952 |
| topic | Matières premières Papeterie Papier - Industrie Fibers Papermaking Pulping |
| topic_facet | Matières premières Papeterie Papier - Industrie Fibers Papermaking Pulping |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=004533090&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
| volume_link | (DE-604)BV004845022 |