Title:
CELLULOSE DERIVATIVE, HEAVY METAL REMOVING MATERIAL CONTAINING SAME, AND HEAVY METAL REMOVING METHOD USING SAME
Document Type and Number:
WIPO Patent Application WO/2020/027009
Kind Code:
A1
Abstract:
Provided are: a cellulose derivative which can be produced with high efficiency and at low cost and can adsorb a heavy metal selectively to collect the heavy metal; and a method for producing the cellulose derivative. The cellulose derivative according to the present invention is characterized in that a hydrogen atom in a hydroxyl group in a repeating unit represented by formula (I) in a cellulose having the repeating unit is substituted by a group represented by formula (a), and the average degree of substitution of the hydrogen atom in the hydroxyl group by the group represented by formula (a) is 0.10 to 2.34.
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Inventors:
NAKATANI KOUJI (JP)
INOUE KEIZO (JP)
SUZUKI MASAHIKO (JP)
INOUE KEIZO (JP)
SUZUKI MASAHIKO (JP)
Application Number:
PCT/JP2019/029562
Publication Date:
February 06, 2020
Filing Date:
July 29, 2019
Export Citation:
Assignee:
DAICEL CORP (JP)
International Classes:
C08B3/14; B01J20/24; B01J20/30; C02F1/28
Foreign References:
| JP2018083882A | 2018-05-31 |
Other References:
ITO, MIKIYA ET AL.: "C09: Synthesis of Cellulose Derivatives Bearing Dithiocarbamate Pendants aiming of the application to As(III) Adsorbents", LECTURE NOTES OF THE 66TH HOKURIKU BRANCH RESEARCH PRESENTATION OF THE SOCIETY OF POLYMER SCIENCE, JAPAN, vol. 66, 18 November 2017 (2017-11-18), Japan, pages 69 (C09), XP009521496
ITO, MIKIYA ET AL.: "1Pf098: Synthesis of Cellulose Derivatives Bearing Dithiccarhamate Salt Pendants and Their Application to As (III) ion Adsorbents", POLYMER PREPRINTS, JAPAN; 66TH SPSJ SYMPOSIUM ON MACROMOLECULES : MATSUYAMA, JAPAN, SEPTEMBER 20-22, 2017, vol. 66, no. 2, 2017, Japan, pages 1Pf098, XP009521495
NAKAKUBO, KEISUKE ET AL.: "Adsorption behavior of As(III) on dithiocarbamate-type cellulose derivatives", LECTURE ABSTRACT OF DISCUSSION OF THE JAPAN SOCIETY FOR ANALYTICAL CHEMISTRY, vol. 78, 2018, Japan, pages 182 (Y1113), XP009521494
NAKAKUBO, KEISUKE ET AL.: "Dithiocarbamate-modified cellulose resins: A novel adsorbent for selective removal of arsenite from aqueous media", JOURNAL OF HAZARDOUS MATERIALS, vol. 380, no. 120816, 6 July 2019 (2019-07-06), pages 1 - 9, XP085843944, DOI: 10.1016/j.jhazmat.2019.120816
ITO, MIKIYA ET AL.: "1Pf098: Synthesis of Cellulose Derivatives Bearing Dithiccarhamate Salt Pendants and Their Application to As (III) ion Adsorbents", POLYMER PREPRINTS, JAPAN; 66TH SPSJ SYMPOSIUM ON MACROMOLECULES : MATSUYAMA, JAPAN, SEPTEMBER 20-22, 2017, vol. 66, no. 2, 2017, Japan, pages 1Pf098, XP009521495
NAKAKUBO, KEISUKE ET AL.: "Adsorption behavior of As(III) on dithiocarbamate-type cellulose derivatives", LECTURE ABSTRACT OF DISCUSSION OF THE JAPAN SOCIETY FOR ANALYTICAL CHEMISTRY, vol. 78, 2018, Japan, pages 182 (Y1113), XP009521494
NAKAKUBO, KEISUKE ET AL.: "Dithiocarbamate-modified cellulose resins: A novel adsorbent for selective removal of arsenite from aqueous media", JOURNAL OF HAZARDOUS MATERIALS, vol. 380, no. 120816, 6 July 2019 (2019-07-06), pages 1 - 9, XP085843944, DOI: 10.1016/j.jhazmat.2019.120816
Attorney, Agent or Firm:
GOTO & CO. (JP)
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