CH312219A
(en )
1955-12-31
Process for the regeneration of waste paper.
CH374887A
(en )
1964-01-31
Process for making paper
CH366013A
(en )
1962-11-30
Process for the production of lignin and carbohydrates from sulphite waste liquor and wood hydrolysates
CH310515A
(en )
1955-10-31
Process for converting sulphite waste liquor into a solid product while avoiding the contamination of waste water.
CH379256A
(en )
1964-06-30
Process for the production of semi-chemical sulphite pulp
AT193244B
(en )
1957-11-25
Process for converting sulphite cellulose waste liquor into a solid product
CH338697A
(en )
1959-05-31
Process for the production of cellulose by digesting cellulose-containing raw materials
CH346104A
(en )
1960-04-30
Process for the fractionation of sulphite waste liquor
AT191250B
(en )
1957-08-10
Process for the regeneration of waste paper
CH341706A
(en )
1959-10-15
Process for bleaching pulp pulp
AT196239B
(en )
1958-03-10
Process for the fractionation of sulphite waste liquor
CH326184A
(en )
1957-12-15
Process for the continuous digestion of fibrous materials into cellulose or semi-cellulose
AT187790B
(en )
1956-11-26
Process for the digestion of sulphite waste liquor
CH352081A
(en )
1961-02-15
Process for the production of dry glue for paper sizing
AT186597B
(en )
1956-08-25
Process for de-spiriting fermented sulphite waste liquor in multi-stage evaporators
CH334609A
(en )
1958-12-15
Process for evaporation of sulphite waste liquor
AT193398B
(en )
1957-11-25
Process for sulphiding alkali cellulose
AT194239B
(en )
1957-12-27
Process for the extraction of hydrocarbons from the organic substances of waste liquors in the pulp industry
AT176184B
(en )
1953-09-25
Process for the purification of waste water from the pulp, paper and cardboard industries
CA481587A
(en )
1952-03-11
Process for utilizing waste liquor
FR1078119A
(en )
1954-11-16
Process for reducing residual sulphite alkalis
AT181177B
(en )
1955-02-25
Process for the processing of sulphite waste liquors in the pulp industry
CH344716A
(en )
1960-02-29
Process for the pressure synthesis of urea
AT198715B
(en )
1958-07-25
Process for obtaining glycerine through sulphite fermentation
AT195744B
(en )
1958-02-25
Process for evaporation of sulphite waste liquor