SE8901187L - Liq. lignin prodn. from peat - involves treatment of peat with chemicals to make lignin soluble, converting it to liq. form - Google Patents

Liq. lignin prodn. from peat - involves treatment of peat with chemicals to make lignin soluble, converting it to liq. form

Info

Publication number
SE8901187L
SE8901187L SE8901187A SE8901187A SE8901187L SE 8901187 L SE8901187 L SE 8901187L SE 8901187 A SE8901187 A SE 8901187A SE 8901187 A SE8901187 A SE 8901187A SE 8901187 L SE8901187 L SE 8901187L
Authority
SE
Sweden
Prior art keywords
peat
liq
lignin
combination
prodn
Prior art date
Application number
SE8901187A
Other languages
Swedish (sv)
Other versions
SE8901187D0 (en
Inventor
Arne Lindahl
Bo Wiklund
Original Assignee
Arne Lindahl
Bo Wiklund
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Arne Lindahl, Bo Wiklund filed Critical Arne Lindahl
Priority to SE8901187A priority Critical patent/SE8901187L/en
Publication of SE8901187D0 publication Critical patent/SE8901187D0/en
Publication of SE8901187L publication Critical patent/SE8901187L/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08H—DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
    • C08H6/00—Macromolecular compounds derived from lignin, e.g. tannins, humic acids

Abstract

The peat used for combination has a degree of humidity according to the von Post scale which is at least two, and before its combination it is thickened to a dry content of at least 15 per cent, and/or dried to a dry content of at least 50 per cent. The material is ground before combination, and comprises colloidal particles obtained after fractioning. The combination is made with a mixt. of sodium carbonate and sodium hydroxide, using mainly sulphur dioxide as anion, and in the presence of an oxidising mediu. The temp. applicable to the combination process is between 70 and 190 deg.C., and the process is terminated by a redn. of vapour pressure.
SE8901187A 1989-04-05 1989-04-05 Liq. lignin prodn. from peat - involves treatment of peat with chemicals to make lignin soluble, converting it to liq. form SE8901187L (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE8901187A SE8901187L (en) 1989-04-05 1989-04-05 Liq. lignin prodn. from peat - involves treatment of peat with chemicals to make lignin soluble, converting it to liq. form

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8901187A SE8901187L (en) 1989-04-05 1989-04-05 Liq. lignin prodn. from peat - involves treatment of peat with chemicals to make lignin soluble, converting it to liq. form

Publications (2)

Publication Number Publication Date
SE8901187D0 SE8901187D0 (en) 1989-04-05
SE8901187L true SE8901187L (en) 1990-10-06

Family

ID=20375552

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8901187A SE8901187L (en) 1989-04-05 1989-04-05 Liq. lignin prodn. from peat - involves treatment of peat with chemicals to make lignin soluble, converting it to liq. form

Country Status (1)

Country Link
SE (1) SE8901187L (en)

Also Published As

Publication number Publication date
SE8901187D0 (en) 1989-04-05

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