Title:
METHOD FOR PRODUCING FULVIC ACID SOLUTION, AND FULVIC ACID SOLUTION
Document Type and Number:
WIPO Patent Application WO/2019/043961
Kind Code:
A1
Abstract:
[Problem] To provide a method for producing a fulvic acid solution having a quite different composition from those of the conventional ones.
[Solution] A method for producing a fulvic acid solution according to the present invention is characterized by comprising: a device provision step of providing a treatment device, wherein the treatment device is equipped with an air-tight container having a closable treatment space therein, a steam ejection means for ejecting high-temperature high-pressure steam into the air-tight container, a supply unit having an openable mechanism and capable of supplying a raw material into the air-tight container, and a discharge unit having an openable mechanism and capable of discharging a treated solution produced by the treatment of the raw material with the steam to the outside; a raw material introduction step of introducing a raw material containing wood material chips as the main component into the treatment space in the air-tight container in the treatment device through the supply unit; a steam introduction step of introducing steam having a temperature of 120 to 250°C and a pressure of 12 to 35 atm into the treatment space into which the raw material has been introduced; a treatment step of stirring the raw material while introducing the steam to perform a sub-critical water reaction treatment of the raw material; a solution acquisition step of cooling after the treatment step to obtain a solution containing fulvic acid and humic acid; and a fulvic acid solution acquisition step of separating humic acid and fulvic acid from the obtained solution to obtain a fulvic acid solution.
Inventors:
MATSUI SABURO (JP)
Application Number:
PCT/JP2017/039539
Publication Date:
March 07, 2019
Filing Date:
November 01, 2017
Export Citation:
Assignee:
G 8 INT TRADING CO LTD (JP)
International Classes:
C12P7/40; B09B3/00; C02F11/10
Domestic Patent References:
| WO2006126273A1 | 2006-11-30 |
Foreign References:
| KR101723813B1 | 2017-04-13 | |||
| JP2009254243A | 2009-11-05 | |||
| JP2017112947A | 2017-06-29 | |||
| JPH0566199B2 | 1993-09-21 |
Other References:
MIYASHIRO, T.: "Multipurpose recycling and safety evaluation of waste material used in Subcritical water reactions", DOCTORAL DISSERTATION, TSUKUBA UNIVERSITY, 2012, pages 1 - 91, XP009519775
MATSUSHITA, J. ET. AL.: "Application of subcritical water technoliogy to restoration of reginal vitality", PROCEEDINGS OF THE JSDFE 2015 ANNUAL MEETING; 2015 ANNUAL CONFERENCE OF JAPAN DEFENSE INSTITUTE, FEBRUARY 2016, February 2016 (2016-02-01), pages 83 - 92, XP009519776
MAMORU UCHIMIZU: "Nature and Samsara Soil. Nature Human Beings - Society Basic Theory of Civilization", 1986, MANGASHA CO. LTD., pages: 18 - 28
See also references of EP 3677684A4
MATSUSHITA, J. ET. AL.: "Application of subcritical water technoliogy to restoration of reginal vitality", PROCEEDINGS OF THE JSDFE 2015 ANNUAL MEETING; 2015 ANNUAL CONFERENCE OF JAPAN DEFENSE INSTITUTE, FEBRUARY 2016, February 2016 (2016-02-01), pages 83 - 92, XP009519776
MAMORU UCHIMIZU: "Nature and Samsara Soil. Nature Human Beings - Society Basic Theory of Civilization", 1986, MANGASHA CO. LTD., pages: 18 - 28
See also references of EP 3677684A4
Attorney, Agent or Firm:
NAKAZATO Kouichi et al. (JP)
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