Dahl, Carl 5

Dakin-like reaction 858

Darcy’s law 132, 147, 513

DCM, extractive 234, 330, 342, 360, 365,

450–451, 961, 1013, 1030, 1061

Deacetylation, glucomannan in superbatch

Process 280

Debarker, Nicholson A2 78

debarking 71–80

– methods 72–80

Debarking resistance, seasonal development

Debarking state, wood quality 1075

Debris passage ratio, in relation to screening

Efficiency 590

Debye–Huckel–Onsager equation 142

Decayed wood, waste generation 105

Deciduous woods, structure 50

Decomposition

– chlorine dioxide 737

– homolytic 651

– hydrogen peroxide 854–856

– metal ion-catalyzed 791

Decreasing-permeability model 517

Defiberization, lignin compounds 1123

Defibration

– conditions 1102

– single fibers 1083

Deflocculation, fibers 562

Degradation

– carbohydrates 794–798, 859

– cellulose 1056–1059

– cellulose/hemicellulose under alkaline

Conditions 175

– end products 956

– lignin 790–794

– pathways for glucosone and xylosone endgroups

– pentoses and hexoses 420

– products 446

– wood components 437–449

Degradation acids, relative frequencies

(oxidative degradation) 637

dehydration, carbohydrates 419–421

deinking 1165, 1174–1175

Deliberation 1113

– single fibers 1083

delignification 16–17, 61, 79, 110–112,

158–162, 705–706, 828–829

– activation energy literature data 201–202

– alkali charge 700

– alternative bleaching methods 887

– as function of pH 473

– beechwood acid sulfite cooking 437

– behaviour 834

– bleaching 809, 887

– blowtank 826

– brightness dependence 870

– carbohydrate reactions 657

– chain scissions number 260

– chlorine dioxide 752, 755

– degree of 697, 717

– dioxygen-alkali delignification processes

657–666

– DualoxTM system 730

– effect of carry-over 717

– effect of impregnation on delgnification

uniformity 158–162

– effect of increasing chlorine dioxide 762

– electrochemical 887

– Eucalyptus saligna prehydrolysis kraft pulp

With oxygen delignification 260

– extent 1228–1229

– final pH 705

– hemicellulose degradation in initial phase

– H-factor 259

– high-shear mixers 826

– industrial 688, 695

– kappa number 258, 678, 684

– kinetics 211–215, 671–685

– kraft cooking 184, 189, 211

– lignin solubilization 714

– low-consistency ozone bleaching 809

– mass transfer rate 697

– medium-consistency ozone delignification

System 826

– NaOH-charge 730

– offgas 826

Index 1305

– oxygen see oxygen delignification

– OxyTrac system 730

– ozone 777–849

– pH 473

– phases in kraft cooking 184

– pine 473

– predicted by selected model of kraft cooking

Kinetics 223

– pressure 730

– process equipment 731

– profiles within handmade chip 160

– relation to oxygen delignification

Efficiency 259

– retention time 730

– selectivity 363, 809, 815

– temperature 730

– two-stage 473, 730

– washing 826

– see also kappa number

Delignification chemistry 632

– (di)oxygen and derivatives 641–649

Delignification efficiency

– Eucalyptus saligna prehydrolysis kraft pulp

With oxygen delignification 260

– temperature effect 813

Delignification rate 802

– equation 681

– prehydrolysis effect in prehydrolysis-kraft

Process for Eucalyptus saligna 351

Delignification reactions, selectivity 838

Дата добавления: 2015-10-21