FR619861A -
Process for the recovery of by-products contained in bisulphite liquors from the chemical treatment of wood in the pulp and cellulose industries
- Google Patents
Process for the recovery of by-products contained in bisulphite liquors from the chemical treatment of wood in the pulp and cellulose industries
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D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
D21C11/00—Regeneration of pulp liquors or effluent waste waters
D21C11/0007—Recovery of by-products, i.e. compounds other than those necessary for pulping, for multiple uses or not otherwise provided for
C—CHEMISTRY; METALLURGY
C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
C09F—NATURAL RESINS; FRENCH POLISH; DRYING-OILS; OIL DRYING AGENTS, i.e. SICCATIVES; TURPENTINE
C09F1/00—Obtaining purification, or chemical modification of natural resins, e.g. oleo-resins
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FR619861D1925-12-141925-12-14
Process for the recovery of by-products contained in bisulphite liquors from the chemical treatment of wood in the pulp and cellulose industries
ExpiredFR619861A
(en)
Process for the treatment of lead chloride or basic lead chloride, with a view to its transformation into other lead compounds, and application of the process to the extraction of lead from ores, residues, etc.