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Title:
EQUIPMENT FOR USE IN EXTRACTING HYDROPHILIC FULVIC ACID FROM SOIL
Document Type and Number:
WIPO Patent Application WO/2018/145459
Kind Code:
A1
Abstract:
Equipment for use in extracting hydrophilic fulvic acid from soil, comprising a reaction vessel (1), a pH regulating unit, a first filtering and purifying unit, an acdifying container (11), an acidity/alkalinity regulating unit, a second filtering and purifying unit, a liquid storage apparatus (14), a fulvic acid extracting unit, and a general control system (6). An inlet of the reaction vessel (1) is connected to an outlet of the pH regulating unit; an outlet of same is connected to an inlet of the first filtering and purifying unit. An inlet of the acidifying container (11) is connected to an outlet of the first filtering and purifying unit and to the acidity/alkalinity regulating unit; an outlet of same is connected to an inlet of the second filtering and purifying unit. An outlet of the second filtering and purifying unit is connected to an inlet of the liquid storage apparatus (14). An outlet of the liquid storage apparatus (14) is connected to an inlet of the fulvic acid extracting unit. The pH regulating unit and the acidity/alkalinity regulating unit are connected to the general control system (6). The provided equipment for extracting hydrophilic fulvic acid from soil has a simple structure, a high degree of automation, and capability to effectively extract a solution of a required concentration.

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Inventors:
BAI YINGCHEN (CN)
WU FENGCHANG (CN)
LIAO HAIQING (CN)
PU SHENGYAN (CN)
GUO FEI (CN)
CHANG MING (CN)
WEI YUAN (CN)
WANG GUOJING (CN)
Application Number:
PCT/CN2017/101710
Publication Date:
August 16, 2018
Filing Date:
September 14, 2017
Export Citation:
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Assignee:
CHINESE RES ACAD ENV SCIENCES (CN)
International Classes:
B01D11/02; C02F11/00
Domestic Patent References:
WO2006000073A12006-01-05
Foreign References:
CN106365353A2017-02-01
US20060000731A12006-01-05
KR20120108816A2012-10-05
CN106336515A2017-01-18
Attorney, Agent or Firm:
JJS PATENT ATTORNEYS (CN)
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