JPS5524545A - Heavy metallicion-adsorbing agent excellent in selectivity and manufacture thereof and adsorbing method thereby - Google Patents
Heavy metallicion-adsorbing agent excellent in selectivity and manufacture thereof and adsorbing method therebyInfo
- Publication number
- JPS5524545A JPS5524545A JP9755978A JP9755978A JPS5524545A JP S5524545 A JPS5524545 A JP S5524545A JP 9755978 A JP9755978 A JP 9755978A JP 9755978 A JP9755978 A JP 9755978A JP S5524545 A JPS5524545 A JP S5524545A
- Authority
- JP
- Japan
- Prior art keywords
- adsorbing
- thiocarbohydrazide
- activated carbon
- adsorbing agent
- heavy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 8
- 239000003795 chemical substances by application Substances 0.000 abstract 5
- LJTFFORYSFGNCT-UHFFFAOYSA-N Thiocarbohydrazide Chemical compound NNC(=S)NN LJTFFORYSFGNCT-UHFFFAOYSA-N 0.000 abstract 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 2
- 229910052753 mercury Inorganic materials 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 235000013162 Cocos nucifera Nutrition 0.000 abstract 1
- 244000060011 Cocos nucifera Species 0.000 abstract 1
- 230000002378 acidificating effect Effects 0.000 abstract 1
- 229910001385 heavy metal Inorganic materials 0.000 abstract 1
- 239000010842 industrial wastewater Substances 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 abstract 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 abstract 1
- -1 mercury ions Chemical class 0.000 abstract 1
Landscapes
- Water Treatment By Sorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
PURPOSE: To manufacture simply and economically an adsorbing agent of lone life- time having high selectivity for heavy matallic ions, especially for mercury ions, and a large adsorbing capacity, by adsorbing, aq. acidic soln. of thiocarbohydrazide with activated carbon.
CONSTITUTION: Thiocarbohydrazide is dissolved in an inexpensive aq. soln. of sulfuric acid (pH 1W4) and is adsorbed by activated carbon, pref. by coconut shell activated carbon, at a temp. 50W90°C. The amount of adsorbed thiocarbohydrazide is nearly 5W20% by weight. The activated carbon is washed with water, and is dried to produce an adsorbing agent having high selectivity and high adsorbing capacity especially for mercury. Even when the adsorbing agent comes into contact with water, thiocarbohydrazide is hardly dissolved, consequently the adsorbing agent is characterized by long service-life compared with conventional adsorbing agent, and is used effectively for removing heavy metals contained in the industrial waste water.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9755978A JPS5524545A (en) | 1978-08-09 | 1978-08-09 | Heavy metallicion-adsorbing agent excellent in selectivity and manufacture thereof and adsorbing method thereby |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9755978A JPS5524545A (en) | 1978-08-09 | 1978-08-09 | Heavy metallicion-adsorbing agent excellent in selectivity and manufacture thereof and adsorbing method thereby |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5524545A true JPS5524545A (en) | 1980-02-21 |
Family
ID=14195584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9755978A Pending JPS5524545A (en) | 1978-08-09 | 1978-08-09 | Heavy metallicion-adsorbing agent excellent in selectivity and manufacture thereof and adsorbing method thereby |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5524545A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001252654A (en) * | 2000-03-13 | 2001-09-18 | Yoshikazu Kumihigashi | Method for purifying combustion waste gas or industrial waste liquid and apparatus for purifying environmental pollutants |
| JP2020075246A (en) * | 2018-11-07 | 2020-05-21 | 株式会社大阪ソーダ | Treatment agent for removing metal impurity of transition metal or typical metal contained in solution, and method for producing the treatment agent |
-
1978
- 1978-08-09 JP JP9755978A patent/JPS5524545A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001252654A (en) * | 2000-03-13 | 2001-09-18 | Yoshikazu Kumihigashi | Method for purifying combustion waste gas or industrial waste liquid and apparatus for purifying environmental pollutants |
| JP2020075246A (en) * | 2018-11-07 | 2020-05-21 | 株式会社大阪ソーダ | Treatment agent for removing metal impurity of transition metal or typical metal contained in solution, and method for producing the treatment agent |
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