WO1991000246A1 - Procede de traitement d'eaux d'egout contenant de cyanures - Google Patents

Procede de traitement d'eaux d'egout contenant de cyanures Download PDF

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Publication number
WO1991000246A1
WO1991000246A1 PCT/SU1989/000174 SU8900174W WO9100246A1 WO 1991000246 A1 WO1991000246 A1 WO 1991000246A1 SU 8900174 W SU8900174 W SU 8900174W WO 9100246 A1 WO9100246 A1 WO 9100246A1
Authority
WO
WIPO (PCT)
Prior art keywords
wastewater
gold
cyanide
cyanides
processing
Prior art date
Application number
PCT/SU1989/000174
Other languages
English (en)
Russian (ru)
Inventor
Boris Volfovich Pilat
Valentina Nikolaevna Zaitseva
Elena Vasilievna Petrukhina
Original Assignee
Gosudarstvenny Nauchno-Issledovatelsky I Proektny Institut Po Obogascheniju Rud Tsvetnykh Metallov 'kazmekhanobr'
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 Gosudarstvenny Nauchno-Issledovatelsky I Proektny Institut Po Obogascheniju Rud Tsvetnykh Metallov 'kazmekhanobr' filed Critical Gosudarstvenny Nauchno-Issledovatelsky I Proektny Institut Po Obogascheniju Rud Tsvetnykh Metallov 'kazmekhanobr'
Priority to PCT/SU1989/000174 priority Critical patent/WO1991000246A1/fr
Publication of WO1991000246A1 publication Critical patent/WO1991000246A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5272—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using specific organic precipitants
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/16—Nitrogen compounds, e.g. ammonia
    • C02F2101/18—Cyanides

Definitions

  • the basic invention of the invention posed the task of creating such a method of calculating a slower flow, resulting in a loss of life
  • Useful reagent containing sulphide-ion to be less than 10-15 minutes after the start of processing of the preparation of maldehyde.
  • the invention makes use of the safe, non-hazardous, clean wastewater, which is not suitable for chemical products, which are not used in any way.
  • the method of calculating wastewater containing cyanides is beneficial in observing the strict condition of the process; First, the processing of phalum maldehyde is carried out, and then the reagent, with-
  • 35 ⁇ b ⁇ ab ⁇ a s ⁇ chn ⁇ y v ⁇ dy sul ⁇ ids ⁇ de ⁇ z haschim ⁇ eagen ⁇ m d ⁇ lzh- on ⁇ susches ⁇ vlya ⁇ sya in ⁇ edela ⁇ ⁇ - ⁇ - chas ⁇ v, ⁇ a ⁇ ⁇ a ⁇ ⁇ i e ⁇ m in ⁇ chischaem ⁇ y s ⁇ chn ⁇ y v ⁇ de ⁇ e ⁇ ae ⁇ ⁇ yad ⁇ a ⁇ allel- ny ⁇ ⁇ ea ⁇ tsy gid ⁇ liza gli ⁇ lev ⁇ y ⁇ isl ⁇ y and alkaline sul ⁇ ida - - bast metal.
  • tritium is not the only 5th product of the interaction between formaldehyde and sulfide. Formula dehydrate and sulfide are relatively slow, and all of the dies
  • Wastewater in the form of industrial cyanide discharges containing ⁇ / v: gold - 4.2; silver - 9.5;
  • the degree of precipitation of gold is 99.1, the average is 98.2.
  • the degree of deposition of the area is 99.1%, and the area is 98.2%. 25 Example 6.
  • the deposition rate of gold is 30.5, and the silver is 84.8.
  • the degree of gold extraction is 99.3%, and the silver is 99.2%.
  • the degree of gold extraction is 99.3%, of the silver - 99.4%.
  • Example 2 It is different from Example 2, that is, it uses - 6 - Sulfide disintegration with a concentration of 10%.
  • the degree of extraction of gold and silver is 100, 0%.
  • the degree of extraction of gold and silver is 100, 0%.
  • Example 10 There is a difference of Example 10, that is, they use
  • the degree of extraction of gold and silver is 100.0%.
  • the degree of calculation of cyanides in the case of 2- ⁇ (6 6 6)) 100.0%.
  • the invention can be used in any type of consumers where a deep calculation of cyanide compounds is necessary to ensure environmental benefits. - 7 - with a 'one- time installation of metals in a very compact, easy-to-process plant.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)

Abstract

Un procédé de traitement d'eaux d'égout contenant des cyanures consiste à traiter ces dernières premièrement à l'aide d'un formaldéhyde, et ensuite à l'aide d'un réactif contenant un ion de sulfure à un pH compris entre 2 et 12.
PCT/SU1989/000174 1989-06-23 1989-06-23 Procede de traitement d'eaux d'egout contenant de cyanures WO1991000246A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/SU1989/000174 WO1991000246A1 (fr) 1989-06-23 1989-06-23 Procede de traitement d'eaux d'egout contenant de cyanures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SU1989/000174 WO1991000246A1 (fr) 1989-06-23 1989-06-23 Procede de traitement d'eaux d'egout contenant de cyanures

Publications (1)

Publication Number Publication Date
WO1991000246A1 true WO1991000246A1 (fr) 1991-01-10

Family

ID=21617496

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SU1989/000174 WO1991000246A1 (fr) 1989-06-23 1989-06-23 Procede de traitement d'eaux d'egout contenant de cyanures

Country Status (1)

Country Link
WO (1) WO1991000246A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5376749A (en) * 1993-10-05 1994-12-27 The Western Company Of North America Stabilized ammonium polysulfide solutions and process utilizing same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4039327A (en) * 1976-08-02 1977-08-02 American Chemical & Refining Company Inc. Stepwise process for recovering precious metals from solution
US4537686A (en) * 1981-01-28 1985-08-27 Inco Limited Cyanide removal from aqueous streams
US4681628A (en) * 1985-05-01 1987-07-21 Norcim Investments Pty. Ltd. Gold Recovery processes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4039327A (en) * 1976-08-02 1977-08-02 American Chemical & Refining Company Inc. Stepwise process for recovering precious metals from solution
US4537686A (en) * 1981-01-28 1985-08-27 Inco Limited Cyanide removal from aqueous streams
US4681628A (en) * 1985-05-01 1987-07-21 Norcim Investments Pty. Ltd. Gold Recovery processes

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
A.I. BUSEV et al., "Analiticheskaya Khimia Zolota", 1973, Nauka, (Moscow), page 203. *
V.V. LODEISCHIKOV, "Tekhnika i Tekhnologia Izvlechenia Zolota iz rud za Rubezhom", Metallurgia (Moscow), page 238, (cited in the description). *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5376749A (en) * 1993-10-05 1994-12-27 The Western Company Of North America Stabilized ammonium polysulfide solutions and process utilizing same

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