CELLULOSE PRODUCTION PROCESS Russian patent published in 2000 - IPC

Abstract RU 2152466 C1

FIELD: paper-and-pulp industry. SUBSTANCE: wood chips are cooked at 100 to 250 C in organic solvent: phenol compounds-based tar, more particularly inhibitory wood-tar oil or its mixture with creosote wood-tar oil at their ratio from 70:30 to 65:35. Indicated product contains phenols, organic acids, and neutral materials. Cooking is carried out at tar-to-waste water ratio from 2.5:1 to 19:1 Main fraction of the above-indicated oils boils in the range 245-290 C. EFFECT: enabled utilization of resin industry waste and accelerated cooking process, increased lignin selectivity of cooking liquor. 2 cl, 2 tbl, 5 ex

Similar patents RU2152466C1

Title Year Author Number
METHOD OF REMOVING EXTRACTIVE SUBSTANCES WHEN PRODUCING CELLULOSE, CELLULOSE OBTAINED USING SAID METHOD AND USE THEREOF 2010
  • Vinberg Kennet
  • Virkkala Tero
  • Fagerudd Simon
  • Pietilja Teuvo
  • Nordbjak Kaj
  • Vestin Sven
RU2500688C2
ADDITIVES FOR INCREASING OUTPUT WHEN SEPARATING TALL OIL SOAP FROM BLACK LIQUOR 2008
  • Svarz Dzhejms Dzh.
  • Duggirala Prasad I.
  • Uorli Grehjdi I.
RU2456337C2
INCORPORATED SYSTEM OF KRAFT-PULP PLANT AND THERMOCHEMICAL TRANSFORMATION 2015
  • Rowlands William Neil
  • Humphreys Leonard James
  • Thew Robert William Clayton
  • Spankie James Allan
  • Uloth Victor Charles
  • Watson Paul Andrew
  • Pudlas Martin William
RU2696962C2
METHOD OF PRODUCING PULP SEMIPRODUCT 0
  • Dejneko Ivan Pavlovich
  • Evtyugin Dmitrij Viktorovich
  • Zarubin Mikhail Yakovlevich
SU1397581A1
METHOD FOR PRODUCING FIBROUS SEMI-FINISHED PRODUCT 2023
  • Ivakhnov Artem Dmitrievich
  • Sypalova Iuliia Aleksandrovna
  • Kozhevnikov Aleksandr Iurevich
RU2807731C1
0
  • Krotov Vladimir Stepanovich
SU506673A1
METHOD OF PULPING 2008
  • Khakimova Firdaves Kharisovna
  • Kovtun Tat'Jana Nikolaevna
  • Khakimov Roman Rashidovich
  • Noskova Ol'Ga Alekseevna
RU2368716C1
METHOD OF PRODUCING FIBROUS CELLULOSE SEMIPRODUCT 0
  • Burov Anatolij Vladimirovich
  • Elnitskaya Zinaida Petrovna
  • Aliev Rizo Gulamovich
  • Luferova Lidiya Borisovna
SU1694752A1
METHOD OF DECOMPOSING LIGNOCELLULOSE MATERIAL 0
  • Laslo Pasner
  • Pej-Tsin Chan
SU1194282A3
METHOD OF PRODUCING CELLULOSE FOR CHEMICAL PROCESSING 2020
  • Azanov Mikhail Valentinovich
  • Dyachenko Leonid Romanovich
  • Tyurin Evgenij Timofeevich
  • Fadeev Boris Alekseevich
  • Saushkin Vasilij Vasilevich
  • Zujkov Aleksandr Aleksandrovich
  • Goryachev Nikita Leonidovich
RU2738813C1

RU 2 152 466 C1

Authors

Balakshin M.Ju.

Balakshina N.V.

Tropnikova L.K.

Juzhakova T.A.

Dates

2000-07-10Published

1999-12-24Filed