D21C   1/00		κٳͽʸλģã	Pretreatment of the finely-divided materials before digesting(of waste paper <b>D21C5/02</b>)	1108
D21C   1/02		ޤϿˤ	with water or steam	846
D21C   1/04		ʪˤ	with acid reacting compounds	510
D21C   1/06		륫ʪˤ	with alkaline reacting compounds	749
D21C   1/08		ȯʪˤ	with oxygen-generating compounds	90
D21C   1/10		Ʃ¥ʤ뤿ʪŪˡ	Physical methods for facilitating impregnation	332
D21C   3/00		ͭΥѥײ	Pulping cellulose-containing materials	2029
D21C   3/02		̵ޤϥ륫ʪˤΡ㡥βˡ	with inorganic bases or alkaline reacting compounds, e.g. sulfate processes	2855
D21C   3/04		ޤϻ̵ʪˤ	with acids, acid salts, or acid anhydrides	788
D21C   3/06		ββŰβˤ	sulfur dioxide; sulfurous acid; bisulfites	488
D21C   3/08		Űβ륷ˤ	calcium bisulfite	31
D21C   3/10		Űβޥͥˤ	magnesium bisulfite	60
D21C   3/12		Űβʥȥꥦˤ	sodium bisulfite	60
D21C   3/14		Űβ˥ˤ	ammonium bisulfite	42
D21C   3/16		ǡ˻ˤ	nitrogen oxides; nitric acid	131
D21C   3/18		ϥޤϥϥȯʪˤΡʥѥפɺģã	with halogens or halogen-generating compounds(bleaching cellulose pulp <b>D21C9/12</b>)	206
D21C   3/20		ͭϺޤˤ	with organic solvents	776
D21C   3/22		ѥײˡΤ¾ħ	Other features of pulping processes	1891
D21C   3/24		Ϣ³ˡ	Continuous processes	475
D21C   3/26		¿ˡ	Multi-stage processes	759
D21C   3/28		ȯˢ	Prevention of foam	110
D21C   5/00		뤿Τ¾ˡ㡥ʥ󥿤ξ	Other processes for obtaining cellulose, e.g. cooking cotton linters	4159
D21C   5/02		λ椫ΥѥפκʸŻ椫ΥѥפκΤεŪʹģ£ģ£	Working-up waste paper(mechanical processes for working-up waste paper <b>D21B1/08</b>, <b>D21B1/32</b>)	4069
D21C   7/00			Digesters	1604
D21C   7/02		ž	Rotary digesters	106
D21C   7/04		饤˥	Linings	45
D21C   7/06			Feeding devices	709
D21C   7/08		ӽ	Discharge devices	395
D21C   7/10		Ǯ	Heating devices	262
D21C   7/12		ĴѤޤ	Devices for regulating or controlling	416
D21C   7/14		դν۴	Means for circulating the lye	395
D21C   7/16			Safety devices	53
D21C   9/00		ѥס㡥ںѥסޤʥ󥿡θ	After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters	2974
D21C   9/02			Washing	1530
D21C   9/04		ǥե塼ˤ	in diffusers	156
D21C   9/06		ե륿ˤ	in filters	544
D21C   9/08		顤顤ԥåޤϥåν	Removal of fats, resins, pitch, or waxes	975
D21C   9/10		ɺ	Bleaching	4004
D21C   9/12		ϥޤϴޥϥ󲽹ʪˤɺʣģãͥˡΣ	with halogens or halogen-containing compounds(<b>D21C9/16</b> takes precedence)	498
D21C   9/14		ãϢޤϰǻˤɺ	with ClO<sub>2</sub> or chlorites	781
D21C   9/147		ǤޤϤƱΤˤɺʣģãͥˡΣ	with oxygen or its allotropic modifications(<b>D21C9/16</b> takes precedence)	692
D21C   9/153		ˤɺΣ	with ozone	470
D21C   9/16		ʪˤɺ	with per compounds	1761
D21C   9/18		æ	De-watering	1966
D21C  11/00		ѥײդκ	Regeneration of pulp liquors	3343
D21C  11/02		βˡѱդκ	of sulfite lye	458
D21C  11/04		륫ˡѱդκ	of alkali lye	1397
D21C  11/06		ѥײκݤ륬νǮ	Treatment of pulp gases; Recovery of the heat content of the gases	853
D21C  11/08		æ	Deodorisation	164
D21C  11/10		ȯˤѱդǻ	Concentrating spent liquor by evaporation	679
D21C  11/12		ѥѱդǳ	Combustion of pulp liquors	1428
D21C  11/14		ǳ	Wet combustion	108
