MD4241B1 - Process for recovery of sulphide and hydrosulphide ions from solutions - Google Patents
Process for recovery of sulphide and hydrosulphide ions from solutionsInfo
- Publication number
- MD4241B1 MD4241B1 MD20120106A MD20120106A MD4241B1 MD 4241 B1 MD4241 B1 MD 4241B1 MD 20120106 A MD20120106 A MD 20120106A MD 20120106 A MD20120106 A MD 20120106A MD 4241 B1 MD4241 B1 MD 4241B1
- Authority
- MD
- Moldova
- Prior art keywords
- sulphide
- ions
- recovery
- solutions
- hydrosulphide
- Prior art date
Links
Landscapes
- Removal Of Specific Substances (AREA)
Abstract
The invention relates to chemistry, in particular to a process for recovery of sulphide and hydrosulphide ions from various solutions, including various types of water, and can be used for purification of drinking, process and waste waters.Summary of the invention consists in that the process for recovery of sulphide and hydrosulphide ions from solutions provides contacting the solution containing sulphide and hydrosuphide ions, with a highly basic anionite, premodified with Bi(III) by treating 5 g of polymer with 250 mL of 0.016 M Bi(NO3)3 solution with pH 0.25, at the temperature of 55°C for 5.5 hours.The technical result consists in that the proposed process does not contaminate the purified water with oxidized sulphur compounds - sulphate, sulphite and thiosulphate ions, and colloid sulphur, which is difficult to remove from the water.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MDA20120106A MD4241C1 (en) | 2012-06-11 | 2012-06-11 | Process for recovery of sulphide and hydrosulphide ions from solutions |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MDA20120106A MD4241C1 (en) | 2012-06-11 | 2012-06-11 | Process for recovery of sulphide and hydrosulphide ions from solutions |
Publications (2)
Publication Number | Publication Date |
---|---|
MD4241B1 true MD4241B1 (en) | 2013-07-31 |
MD4241C1 MD4241C1 (en) | 2014-02-28 |
Family
ID=48875329
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MDA20120106A MD4241C1 (en) | 2012-06-11 | 2012-06-11 | Process for recovery of sulphide and hydrosulphide ions from solutions |
Country Status (1)
Country | Link |
---|---|
MD (1) | MD4241C1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MD4318C1 (en) * | 2013-06-18 | 2015-08-31 | Государственный Университет Молд0 | Process for water purification from nitrates and nitrites |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2201251B1 (en) * | 1972-10-02 | 1975-01-03 | Inst Francais Du Petrole | |
JPS5375165A (en) * | 1976-12-16 | 1978-07-04 | Asahi Chem Ind Co Ltd | Treating method for sulfiding solution |
US4179403A (en) * | 1977-12-19 | 1979-12-18 | Shell Oil Company | Resin-ligand-metal complex compositions |
JPS6360112A (en) * | 1986-08-29 | 1988-03-16 | Toagosei Chem Ind Co Ltd | Bismuth compound and inorganic ion exchanger containing same as effective component |
US4784775A (en) * | 1987-03-02 | 1988-11-15 | Ari Technologies, Inc. | Removal of hydrogen sulfide from sour water |
DE4125627C2 (en) * | 1991-08-02 | 1994-10-06 | Fraunhofer Ges Forschung | Process for removing nitrate from water and using yellow bismuth hydroxide as an anion exchange material |
JP2949227B1 (en) * | 1998-06-30 | 1999-09-13 | 科学技術庁無機材質研究所長 | Hydrous bismuth compounds with excellent inorganic anion exchange properties and their production |
-
2012
- 2012-06-11 MD MDA20120106A patent/MD4241C1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
MD4241C1 (en) | 2014-02-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG4A | Patent for invention issued | ||
KA4A | Patent for invention lapsed due to non-payment of fees (with right of restoration) | ||
MM4A | Patent for invention definitely lapsed due to non-payment of fees |