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Head, Laboratory of Polysaccharides

Latvian State Institute of Wood Chemistry

Dzerbenes iela 27
Riga, LV-1006

Phone: +371 755 3760
Fax: +371 731 0135

Born: February 8, 1937, Tver, Russia

Interests in inventing:

  • Furfural production technology
  • Technologies and apparatuses for the hydrolitical and mechano-chemical depolymerization of the vegetation raw material polysaccharides
  • Mechano-chemical destruction of peat and biostimulator production

Main invention:

Methods for obtaining furfural
(15 authors’ certificates of USSR and 11 patents of other countries)

Selection of patent documents:

Totally: 37 authors’ certificates of USSR and 23 patents in 11 countries

  • Method of manufacturing furfural (Co-authors: A.Kalnins, P.Odincovs, V.Kalnina, A.Veips)

    Patent of France 1421046 (1965)
    Patent of Italy 752841 (1967)
    Patent of Japan 512090 (1968)
    Patent of Sweden 322785 (1970)
    Patent of FRG 1493864 (1973)

  • Apparatus for the mechanical and chemical destruction of polysaccharides of younger slightly decomposed peat (Co-authors: V.Korenev, J.Ipolitov, B.Belajev a.o.)

    Patent of France 2395307 (1979)
    Patent of FRG 2727884 (1979)
    Patent of Great Britain 1567843 (1980)
    Patent of Sweden 414796 (1980)
    Patent of Canada 1091137 (1980)
    Patent of Finland 58789 (1981)
    Patent of USA 4249703 (1981)

  • Culture medium for cultivation of fodder yeasts (Co-authors: Z.Shishkova, A.Kalninsh, J.Gailitis, U.Shmits a.o.)

    Patent of Great Britain 1543491 (1979)
    Patent of USA 4178214 (1979)
    Patent of France 2407981 (1980)
    Patent of FRG 2740785 (1980)
    Patent of Canada 1103177 (1981)

About the inventions

The essence of the invention:

Furfural is the only monomer used in an industrial organic synthesis that is not obtained from oil but from the vegetation raw materials. Furfural production began in 1922 and it has been unceasingly developing since then, especially since the oil crisis in 1973. Furfural competes successfully with oil chemistry products due to the regeneration of its raw materials, simple obtaining scheme and large application possibilities as well as the unique characteristics of several substances and materials obtained from it. As a result of all these qualities the price of furfural in the world market have grown 5 times for the last 20 years, but the number of countries where furfural is produced has increased from 9 to 19.

Regardless of more than 700 patents and lasting industrial experience until the inventions of N.Vedernikov two problems connected with furfural production technology were not solved: the outcome of furfural under industrial conditions did not exceed 55% of what was theoretically possible; and since the destruction of cellulose in the raw material remainder was 40-50% it could only be burnt and any further chemical recycling was not possible.

By discovering new regularities, working out a new theory and purposefully changing the process mechanism N.Vedernikov simultaneously solved both these problems – something that was considered to be theoretically impossible before.


Since 1982 the new technology has been carried out in different versions in 6 plants of the former USSR with the common economic effect of more than 20 million roubles. During the technology test in modern plants in Hungary that have been built by such companies as “Escher Wyss” (Germany) and “Rosenlew” (Finland) the furfural outcome increased 27-29%. A licence has been sold to a company in Yugoslavia. In 1997 for the first time in the world industrial practice from the raw material remainder of deciduous tree pulp after the obtaining of furfural production of ethyl alcohol was begun in Kirov (Russia) Biochemical plant.

More about the inventor (in Latvian)

More about the inventor (in English)