Alnus incana, chemical composition of wood

alternative bleaching methods 885–887

alternative sulfite pulping concepts 465–482

– alkaline sulfite 475–482

– AS/AQ 476–482

– magnefite process 466–467

– Sivola processes 468–471

– Stora processes 472–475

– two-stage neutral magnefite process

467–468

Aluminum sulfate, addition 710

American beech, average moisture content

American Elm, average moisture content

[2-(2-aminooxyethoxy)ethoxy]amide 1016

Ammonium hydrogen sulfite 404

Andritz Dynamic steam heater 622

Andritz HHQ™ chipper 83–84

Andritz HQ™-sizer 86–87

Andritz Lo-Level heat recovery system 391

Andritz TurboFeed system 381–382

Andritz two-stage DD washer 550

Angiosperms, lignin 30

Anhydro-sugar units

– hemicelluloses 28

– peeling 175–176

Anhydroglucose units 822

– cellulose structure 24

Anion-exchange chromatography 939

Anion radical, superoxide 646

Anisotropy, orientation 1265

Annual ring, softwoods 51

Annular differential volume element,

Screening theory 566

Anthraquinone see AQ

anthraquinone pulping 314–325

– see also AQ

AOX 17, 609, 740–742, 764, 767–777,

846–848, 1000–1001, 1005–1006

– efficiency of chlorine dioxide 769

– formation 774, 843

– levels 773

– load 775

– see also adsorbable organically bound

Halogen

Aperture velocity 565

– in relation to fiber passage ratio 576

apex flow, hydrocyclone 579–580

Apparent rate constants, hardwood

Prehydrolysis 334

AQ 195, 200–201, 476–481, 667

– a-aryl ether structures degradation paths

– combined effects of PS and AQ pulping

314–316

– effect on kappa number–H-factor