Hydroxymethylfurfural, formation 419

P-hydroxyphenyl, monolignol structural

Units 31

P-hydroxyphenyl groups, resistant lignin 714

P-hydroxyphenylpropane units

– lignin 165

– molecular structure 32

– wheat straw 209

A-hydroxysulfonates, formation 423

Hygiene papers, utilization rate 1168

Hypochlorite

– consumption 831

– oxidation capacity (OXE) 613

Hypochlorous acid 737

– excess 739

i

+I-effect, lignin degradation 790

Image analysis, pulp 1274

Impco HI-Q Fine Screen 601

Impco HI-Q Knotter, GL&V 602

impregnation 208–209

– acid sulfite pulping process chemistry 428

– axial 154

– continuous cooking process step 378

Index

– displacement cooking process step 369

– effect on delgnification uniformity

158–162

– Kazi and Chornet diffusion model

151–158

– kraft cooking mass transfer 122–123

– lignin mass balance of Eucalyptus globulus

– radial 155

– refiner process 1103

– sulfite chemical pulping 403–405

– two-vessel MCC® system 385

Impurities, pulp 708

in-digester washing 557–558

In-situcau sticization 992

Incineration

– pulp sample 1220

– single elements determination 1221

index of nonuniformity 1241–1242, 1251

Industrial oxygen delignification

– base case parameters 695

– prediction model 688–701

Infeed rings, debarkers 79

Inhibitors

– ozone 788

– ozone generation 788

Initial NaOH charge, in relation to kappa

Number and selectivity 480

Initial phase

– chlorine dioxide selectivity 761

– kraft pulping reactions overview 183–184