MD4241B1 - Process for recovery of sulphide and hydrosulphide ions from solutions - Google Patents

Process for recovery of sulphide and hydrosulphide ions from solutions

Info

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
Application number
MD20120106A
Other languages
Moldavian (mo)
Romanian (ro)
Other versions
MD4241C1 (en
Inventor
Vasile Gutanu
Original Assignee
Univ De Stat Din Moldova
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Univ De Stat Din Moldova filed Critical Univ De Stat Din Moldova
Priority to MDA20120106A priority Critical patent/MD4241C1/en
Publication of MD4241B1 publication Critical patent/MD4241B1/en
Publication of MD4241C1 publication Critical patent/MD4241C1/en

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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.
MDA20120106A 2012-06-11 2012-06-11 Process for recovery of sulphide and hydrosulphide ions from solutions MD4241C1 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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