WebMay 1, 2011 · The current density of this reaction on Fe, Pt and Ir in the potential range 0.3–0.6 V is linearly related to the concentration of sulphide, The chronoamperometric response to a potential step is sufficiently fast to presume that Pt can be used as an active material for the in-line determination of sulphide in kraft digester white liquor. White liquor is a strongly alkaline solution mainly of sodium hydroxide and sodium sulfide. It is used in the first stage of the Kraft process in which lignin and hemicellulose are separated from cellulose fiber for the production of pulp. The white liquor breaks the bonds between lignin and cellulose. It is called … See more White liquor consists mainly of sodium hydroxide and sodium sulfide in water and is the active component in Kraft pulping. White liquor also contains minor amounts of sodium carbonate, sodium sulfate, sodium thiosulfate See more • Paper chemicals See more The Kraft cooking liquor (white) is used to extract the lignin and break down the cellulose composition of wood chips into usable pulp. The white (cooking) liquor becomes weak black liquor and is sent to the recovery process. See more
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WebIn-line dry solids content and density measurement for black liquor and green liquor at the kraft chemical (sulfate) ... and the quality of white liquor can be improved by controlling continuously the TTA of the green liquor in the causticizing process. Furthermore, recovery boiler safety can be increased using a Digital divert control system ... Webliquor. Black liquor may contain varying percentages of solids ranging from 2% to 80%. The chemical composition of black liquor varies based on its solids content. Content of TRS gases are also variable based on whether it is a strong or weak liquor. 4. First-Aid Measures Ingestion: Immediately contact local poison control center. Ingestion may ... book a room maastricht university fhml
Green liquor - Wikipedia
WebGreen liquor is the dissolved smelt of sodium carbonate, sodium sulfide and other compounds from the recovery boiler in the kraft process. The liquor's eponymous green colour arises from the presence of colloidal iron sulfide. The green liquor is usually reacted with lime (CaO) in the causticizing stage to regenerate white liquor. Alternatively ... WebThe amount of an element accumulated over time in the liquor cycle or in the lime cycle of a kraft pulp mill. The accumulation factor of an element in the liquor cycle is defined as the mass ratio of the element in the white liquor over its total input into the mill system. The accumulation factor of an element in the lime cycle is defined Webliquor. Black liquor may contain varying percentages of solids ranging from 2% to 80%. The chemical composition of black liquor varies based on its solids content. Content of … book a room library brunel