METHOD OF PRODUCING NANOCRYSTALLINE CELLULOSE USING A Cu (II) CATALYST Russian patent published in 2019 - IPC C08B15/00 B82B3/00 

Abstract RU 2705957 C1

FIELD: chemistry.

SUBSTANCE: invention relates to chemical treatment of cellulose, particularly to methods of producing nanocrystalline cellulose in the form of a hydrosol. Method involves catalytic solvolysis of microcrystalline cellulose, extraction and purification of the end product. Catalytic solvolysis of cellulose material is carried out in an acetic acid medium containing copper (II) ions with addition of hydrogen peroxide as an oxidizing agent, wherein the amount of copper (II) is 1–6 % of mole in terms of anhydroglucose unit.

EFFECT: invention widens the range of methods for producing sedimentation-resistant hydrosol with high crystallinity index.

4 cl, 3 dwg, 1 tbl, 18 ex

Similar patents RU2705957C1

Title Year Author Number
METHOD FOR PRODUCTION OF NANOCRYSTALLINE PARTICLES OF CELLULOSE BY CATALYTIC SOLVOLYSIS IN AN ORGANIC MEDIUM 2018
  • Torlopov Mikhail Anatolevich
  • Udoratina Elena Vasilevna
  • Legkij Filipp Vasilevich
RU2682625C1
NANOCRYSTAL, NANOCRYSTAL CELLULOSE HYDROSOL AND METHOD FOR PRODUCTION THEREOF 2018
  • Udoratina Elena Vasilevna
  • Torlopov Mikhail Anatolevich
RU2689753C1
METHOD OF PRODUCING WATER DISPERSION OF NANOCRYSTALLINE CELLULOSE 2016
  • Torlopov Mikhail Anatolevich
  • Udoratina Elena Vasilevna
RU2620429C1
EMULSIFYING DISPERSION OF NANOCRYSTALLINE CELLULOSE AND A METHOD FOR CLEANING THE WATER SURFACE FROM OIL AND PETROLEUM PRODUCTS WITH ITS APPLICATION 2021
  • Sitnikov Petr Aleksandrovich
  • Torlopov Mikhail Anatolevich
  • Legkii Filipp Vasilevich
  • Vaseneva Irina Nikolaevna
  • Druz Iuliia Ivanovna
  • Tarabukin Dmitrii Valerianovich
  • Udoratina Elena Vasilevna
RU2771381C1
METHOD OF PRODUCING HYDROGEL OF NANOCRYSTALLINE CELLULOSE 2010
  • Voskobojnikov Igor' Vasil'Evich
  • Kondratjuk Vladimir Aleksandrovich
  • Konstantinova Svetlana Alekseevna
  • Shchelokov Vjacheslav Mikhajlovich
  • Korotkov Aleksej Nikolaevich
  • Mikhajlov Al'Fa Ivanovich
  • Nikol'Skij Sergej Nikolaevich
RU2494109C2
STABLE PICKERING EMULSION STABILIZED BY ACETYLATED CELLULOSE NANOCRYSTALS, METHOD FOR PRODUCTION AND USE THEREOF 2021
  • Vaseneva Irina Nikolaevna
  • Torlopov Mikhail Anatolevich
  • Mikhailov Vasilii Igorevich
  • Sitnikov Petr Aleksandrovich
  • Legkii Filipp Vasilevich
  • Paderin Nikita Mikhailovich
  • Martakov Ilia Sergeevich
RU2767247C1
METHODS OF DETECTING DIFFERENCES IN CELLULOSE STRUCTURAL CONDITION 2013
  • Aleshina Ljudmila Aleksandrovna
  • Melekh Natal'Ja Valer'Evna
  • Frolova Svetlana Valer'Evna
RU2570092C2
COMPLEX ETHER OF CELLULOSE, SIMULTANEOUSLY CONTAINING SULPHATE AND PHOSPHATE GROUPS AND METHOD OF PRODUCING SAID ETHER 2008
  • Torlopov Mikhail Anatol'Evich
  • Demin Valerij Anatol'Evich
RU2395524C2
COMPOSITE MATERIAL BASED ON NANOCRYSTALLINE CELLULOSE AND SILICON NANOPARTICLES 2017
  • Gurtov Valerij Alekseevich
  • Pikulev Vitalij Borisovich
  • Loginova Svetlana Vladimirovna
RU2671702C1
COMPOSITION FOR THE RESTORATION OF REINFORCED CONCRETE STRUCTURES OF COMMUNICATION COLLECTORS 2021
  • Nalbandyan Grigor Vilenovich
  • Surov Oleg Valentinovich
  • Korolev Evgenij Valerevich
  • Samchenko Svetlana Vasilevna
  • Voronova Marina Igorevna
  • Kozlova Irina Vasilevna
  • Ushkov Valentin Anatolevich
RU2768550C1

RU 2 705 957 C1

Authors

Torlopov Mikhail Anatolevich

Udoratina Elena Vasilevna

Volodin Aleksej Aleksandrovich

Dates

2019-11-12Published

2019-06-15Filed