FR2128118A1 - Alkaline-earth sulphides - by reducing the sulphates in briquettes and extracting with water - Google Patents

Alkaline-earth sulphides - by reducing the sulphates in briquettes and extracting with water

Info

Publication number
FR2128118A1
FR2128118A1 FR7107673A FR7107673A FR2128118A1 FR 2128118 A1 FR2128118 A1 FR 2128118A1 FR 7107673 A FR7107673 A FR 7107673A FR 7107673 A FR7107673 A FR 7107673A FR 2128118 A1 FR2128118 A1 FR 2128118A1
Authority
FR
France
Prior art keywords
ore
alkaline
degrees
water
briquettes
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
FR7107673A
Other languages
French (fr)
Other versions
FR2128118B1 (en
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.)
Bureau de Recherches Geologiques et Minieres BRGM
Original Assignee
Bureau de Recherches Geologiques et Minieres BRGM
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 Bureau de Recherches Geologiques et Minieres BRGM filed Critical Bureau de Recherches Geologiques et Minieres BRGM
Priority to FR7107673A priority Critical patent/FR2128118A1/en
Publication of FR2128118A1 publication Critical patent/FR2128118A1/en
Application granted granted Critical
Publication of FR2128118B1 publication Critical patent/FR2128118B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/42—Sulfides or polysulfides of magnesium, calcium, strontium, or barium
    • C01B17/44—Sulfides or polysulfides of magnesium, calcium, strontium, or barium by reduction of sulfates

Abstract

Alkaline-earth sulphides are obtd. from the corresp. sulphate ore by grinding the ore to not >200 mu m; adding 12-18WT.% based on ore, of a solid carbon-rich reducing agent, and 0.5-1.5wt.% of a mineral clay binder, these two additives having been ground to 0.5 mm; homogenising and compacting the mixt.; in a non-oxidizing atmos. roasting for >=15 mins. at not >1100 degrees C (1050 degrees C), and cooling; percolating with water at 70-90 degrees C; and withdrawing a clear soln. of the alkaline earth sulphide. Or grinding to not >200 mu m may be performed on the mixt. of ore, reducing agent, and clay. Advantages are reduced roasting temp., increased yield on percolating; great purity; reduction in number of operations; ore can be low-grade. Uses are phosphorescence; pigments; glass; rubber; paper.
FR7107673A 1971-03-05 1971-03-05 Alkaline-earth sulphides - by reducing the sulphates in briquettes and extracting with water Granted FR2128118A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7107673A FR2128118A1 (en) 1971-03-05 1971-03-05 Alkaline-earth sulphides - by reducing the sulphates in briquettes and extracting with water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7107673A FR2128118A1 (en) 1971-03-05 1971-03-05 Alkaline-earth sulphides - by reducing the sulphates in briquettes and extracting with water

Publications (2)

Publication Number Publication Date
FR2128118A1 true FR2128118A1 (en) 1972-10-20
FR2128118B1 FR2128118B1 (en) 1973-11-30

Family

ID=9073009

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7107673A Granted FR2128118A1 (en) 1971-03-05 1971-03-05 Alkaline-earth sulphides - by reducing the sulphates in briquettes and extracting with water

Country Status (1)

Country Link
FR (1) FR2128118A1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE394361C (en) * 1921-12-29 1924-04-17 Grasselli Chemical Company Process for the production of metal sulfide

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE394361C (en) * 1921-12-29 1924-04-17 Grasselli Chemical Company Process for the production of metal sulfide

Also Published As

Publication number Publication date
FR2128118B1 (en) 1973-11-30

Similar Documents

Publication Publication Date Title
GB1401615A (en) Roorda h j extraction of non-ferrous metals from iron-containing materials
AU466826B2 (en) HYDROMETALLURGICAL. process for extraction OF COPPER AND SULPHUR FROM COPPER IRON SULPHIDES
GB1466225A (en) Redox treatment of alumite ore
FR2128118A1 (en) Alkaline-earth sulphides - by reducing the sulphates in briquettes and extracting with water
ES456147A1 (en) Method for recovering scheelite from tungsten ores by flotation
GB1435219A (en) Produc
JPS53108017A (en) Utilizing method for red mud waste in blast furnace
US2353613A (en) Process for beneficiation of iron ores and recovery of by-product values
JPS5560018A (en) Zinc silicate mineral recovering method
JPS5466314A (en) Manufacture of reduced pellets
EP0116272A3 (en) Manufacturing process of silicon and iron free blast material for surface treatment
Zhou et al. Technical transformation of copper-sulfur flotation--the practice of Yongping Copper Mine
Brin Mineral Resources of Seawater
GB769957A (en) Improvements in or relating to the manufacture of steel
SU485151A1 (en) Method for the production of iron ore pellets
JPS5450416A (en) Hot iron desulfurizing agent
Ptak et al. Viscosity of Slags in Copper Production
CN1048065A (en) Utilize boric sludge to get the ironmaking anti-looseness agent
TH5017A (en) Extraction of tin from ore of tin
Strelets et al. Possibilities of Further Increasing Iron Production in the Ukraine
GB1329580A (en) Tungsten carbide
Yusfin Problems of the Smelting of Metallized Materials in Blast Furnaces
White Bong Iron Ore: Rationalization Improves Efficiencies at Liberian Operation
GB1173514A (en) Improvements in or relating to Gutters, Launders and Containers.
Sychev et al. Efficient Utilization of Complex Lead--Zinc Sulphide Raw Materials--Developments in the USSR

Legal Events

Date Code Title Description
ST Notification of lapse