FR2449649A1 - Procede a sec de preparation de sulfate de magnesium par reaction de dechets d'amiante et de sulfate d'ammonium - Google Patents

Procede a sec de preparation de sulfate de magnesium par reaction de dechets d'amiante et de sulfate d'ammonium

Info

Publication number
FR2449649A1
FR2449649A1 FR8003480A FR8003480A FR2449649A1 FR 2449649 A1 FR2449649 A1 FR 2449649A1 FR 8003480 A FR8003480 A FR 8003480A FR 8003480 A FR8003480 A FR 8003480A FR 2449649 A1 FR2449649 A1 FR 2449649A1
Authority
FR
France
Prior art keywords
sulphate
ammonium
reaction
asbestos
waste
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.)
Granted
Application number
FR8003480A
Other languages
English (en)
Other versions
FR2449649B1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AMIANTE
Societe Nationale de lAmiante
Original Assignee
AMIANTE
Societe Nationale de lAmiante
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 AMIANTE, Societe Nationale de lAmiante filed Critical AMIANTE
Publication of FR2449649A1 publication Critical patent/FR2449649A1/fr
Application granted granted Critical
Publication of FR2449649B1 publication Critical patent/FR2449649B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F5/00—Compounds of magnesium
    • C01F5/40—Magnesium sulfates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Processing Of Solid Wastes (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Fertilizers (AREA)

Abstract

PROCEDE DE PREPARATION DE SULFATE DE MAGNESIUM PAR REACTION DE DECHETS D'AMIANTE ET DE SULFATE D'AMMONIUM. IL EST CARACTERISE EN CE QU'ON CHAUFFE UNE SEULE FACE D'UN MELANGE SEC HOMOGENE DE DECHETS D'AMIANTE ET DE SULFATE D'AMMONIUM DE LA TEMPERATURE AMBIANTE A 350-400C, JUSQU'A CE QUE LA TEMPERATURE DE LA ZONE CHAUFFEE ATTEIGNE 250C, LA REACTION FORME DU SULFATE DE MAGNESIUM AVEC DEGAGEMENT DE NH. AU-DELA DE CETTE TEMPERATURE, LE SULFATE D'AMMONIUM SE DECOMPOSE EN NH ET BISULFATE D'AMMONIUM SUBLIME, QUI PROGRESSENT VERS UNE ZONE INTERMEDIAIRE MOINS CHAUDE OU LE BISULFATE D'AMMONIUM SE CONDENSE ET REFORME DU SULFATE D'AMMONIUM, CE PROCESSUS SE REPETANT JUSQU'A CE QUE LA TEMPERATURE DE LA ZONE LA PLUS ELOIGNEE DE LA ZONE DE CHAUFFAGE ATTEIGNE 250 A 300C. ON EXTRAIT ALORS LE SULFATE DE MAGNESIUM DU MELANGE REACTIONNEL. UTILISATION DU PROCEDE POUR RECUPERER LE MAGNESIUM A PARTIR DES DECHETS D'AMIANTE.
FR8003480A 1979-02-26 1980-02-18 Procede a sec de preparation de sulfate de magnesium par reaction de dechets d'amiante et de sulfate d'ammonium Granted FR2449649A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US1543579A 1979-02-26 1979-02-26
US06/035,267 US4277449A (en) 1979-02-26 1979-05-01 Dry reaction process of asbestos tailings and ammonium sulfate

Publications (2)

Publication Number Publication Date
FR2449649A1 true FR2449649A1 (fr) 1980-09-19
FR2449649B1 FR2449649B1 (fr) 1984-06-29

Family

ID=26687378

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8003480A Granted FR2449649A1 (fr) 1979-02-26 1980-02-18 Procede a sec de preparation de sulfate de magnesium par reaction de dechets d'amiante et de sulfate d'ammonium

Country Status (16)

Country Link
US (1) US4277449A (fr)
AU (1) AU529241B2 (fr)
BR (1) BR8001092A (fr)
CA (1) CA1115486A (fr)
CH (1) CH642333A5 (fr)
DE (1) DE3006050A1 (fr)
DK (1) DK78480A (fr)
ES (1) ES489483A0 (fr)
FR (1) FR2449649A1 (fr)
GB (1) GB2043615B (fr)
IL (1) IL59422A (fr)
IT (1) IT1154714B (fr)
NL (1) NL8001014A (fr)
NO (1) NO153604C (fr)
SE (1) SE437822B (fr)
YU (1) YU45680A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0507260A1 (fr) * 1991-04-01 1992-10-07 Hughes Aircraft Company Préparation à l'état solide de sulfate de barium ayant une pureté élevée
US5246687A (en) * 1991-04-01 1993-09-21 Hughes Aircraft Company Solid-state preparation of high purity barium sulfate

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4335083A (en) * 1981-03-05 1982-06-15 Carey Canada Inc. Method for leaching magnesium from magnesium hydroxide-containing composition
US4479828A (en) * 1983-10-18 1984-10-30 Societe Nationale De L'amiante Light colored and low density mineral filler from magnesium silicate
US4780297A (en) * 1987-04-06 1988-10-25 J. M. Huber Corporation Low brightness magnesium silicate filler and methods
US5201950A (en) * 1987-04-06 1993-04-13 J. M. Huber Corporation Low brightness magnesium silicate SLR filler low brightness paper containing the filler and methods to produce the filler and use it in low brightness papers
CN104891951B (zh) * 2015-05-19 2017-04-12 河北工程大学 一种从石棉尾矿中提取硅、镁、铝复合保温材料的方法
CN109264726B (zh) * 2018-11-16 2022-04-05 陕西理工大学 一种利用石棉尾矿制备多孔二氧化硅的方法
WO2023149792A1 (fr) * 2022-02-03 2023-08-10 Товарищество С Ограниченной Ответственностью "Isl Metals Group" Procédé de transformation de roches minières à base de silicates et d'aluminosilicates

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3338667A (en) * 1963-12-02 1967-08-29 Johns Manville Recovery of silica, iron oxide and magnesium carbonate from the treatment of serpentine with ammonium bisulfate

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3338667A (en) * 1963-12-02 1967-08-29 Johns Manville Recovery of silica, iron oxide and magnesium carbonate from the treatment of serpentine with ammonium bisulfate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0507260A1 (fr) * 1991-04-01 1992-10-07 Hughes Aircraft Company Préparation à l'état solide de sulfate de barium ayant une pureté élevée
US5246687A (en) * 1991-04-01 1993-09-21 Hughes Aircraft Company Solid-state preparation of high purity barium sulfate

Also Published As

Publication number Publication date
FR2449649B1 (fr) 1984-06-29
SE8001446L (sv) 1980-08-27
NO800511L (no) 1980-08-27
NO153604B (no) 1986-01-13
AU5574480A (en) 1980-09-04
DE3006050A1 (de) 1980-09-04
CH642333A5 (fr) 1984-04-13
SE437822B (sv) 1985-03-18
YU45680A (en) 1983-01-21
GB2043615A (en) 1980-10-08
CA1115486A (fr) 1982-01-05
ES8102989A1 (es) 1981-02-16
ES489483A0 (es) 1981-02-16
US4277449A (en) 1981-07-07
BR8001092A (pt) 1980-10-29
AU529241B2 (en) 1983-06-02
GB2043615B (en) 1983-03-16
IT1154714B (it) 1987-01-21
IL59422A0 (en) 1980-05-30
DK78480A (da) 1980-08-27
NO153604C (no) 1986-04-23
IT8083321A0 (it) 1980-02-25
IL59422A (en) 1982-12-31
NL8001014A (nl) 1980-08-28

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Legal Events

Date Code Title Description
ST Notification of lapse