White Liquor Paper Mill

White Liquor Paper Mill – 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. I) minimizing the environmental impact of waste material (black liquor) from the pulping process; White liquor • white powder • used in sulphite pulping • methyl alcohol or wood alcohol • colourless • when pure, has slight alcoholic odour; Black liquor in pulp and paper mills.

Learn how white liquor, a solution of sodium hydroxide and sodium sulfide, is recovered from spent cooking liquor in the chemical recovery area of pulp and paper mills. Strategies to reduce water and energy. 29 april 2021 pulp and paper mill wastes: White liquor is a strongly alkaline solution mainly of sodium hydroxide and sodium sulfide.

Modern and proven andritz technologies. White liquor is cooking liquor that used in the kraft pulping. In batch cooking, the digester is filled with chips, white cooking liquor and weak black liquor.

The cooking liquor, which is drawn through screens, is circulated. White liquor lime kiln caustic plant green liquor sampling points additional liquor measurements pulp & black liquor water washers pulp weak black The chemical recovery process involves.

Ii) recycling pulping chemicals, naoh. The white liquor dissolves the lignin that binds the cellulose fibres together. It is so called white liquor because it should be distinguished to other liquids in the pulping process.

2.7 stock preparation and papermaking stock preparation. Recausticizing lime reburning white liquor modification gasification andritz limeline components are designed as standalone machines for the white liquor plant, but offer truly superior performance when. Two types of digester systems—batch and continuous—are used for kraft pulping.

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