FR671431A - Perfectionnements au traitement des matières siliceuses - Google Patents

Perfectionnements au traitement des matières siliceuses

Info

Publication number
FR671431A
FR671431A FR671431DA FR671431A FR 671431 A FR671431 A FR 671431A FR 671431D A FR671431D A FR 671431DA FR 671431 A FR671431 A FR 671431A
Authority
FR
France
Prior art keywords
treatment
siliceous materials
siliceous
materials
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.)
Expired
Application number
Other languages
English (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.)
Peter Spence and Sons Ltd
Original Assignee
Peter Spence and Sons Ltd
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 Peter Spence and Sons Ltd filed Critical Peter Spence and Sons Ltd
Application granted granted Critical
Publication of FR671431A publication Critical patent/FR671431A/fr
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B34/00—Obtaining refractory metals
    • C22B34/10—Obtaining titanium, zirconium or hafnium
    • C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
    • C22B34/1236—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by wet processes, e.g. by leaching
    • C22B34/1254—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by wet processes, e.g. by leaching using basic solutions or liquors
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/113—Silicon oxides; Hydrates thereof
    • C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
    • C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
    • C01B33/187—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by acidic treatment of silicates
    • C01B33/193—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by acidic treatment of silicates of aqueous solutions of silicates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
FR671431D 1929-03-13 1929-03-13 Perfectionnements au traitement des matières siliceuses Expired FR671431A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR671431T 1929-03-13

Publications (1)

Publication Number Publication Date
FR671431A true FR671431A (fr) 1929-12-12

Family

ID=9016961

Family Applications (1)

Application Number Title Priority Date Filing Date
FR671431D Expired FR671431A (fr) 1929-03-13 1929-03-13 Perfectionnements au traitement des matières siliceuses

Country Status (1)

Country Link
FR (1) FR671431A (fr)

Similar Documents

Publication Publication Date Title
FR716671A (fr) Perfectionnements au traitement de matières artificielles
FR691210A (fr) Perfectionnements au traitement de masses catalytiques
FR698935A (fr) Perfectionnements au traitement des liqueurs résiduelles
FR667210A (fr) Perfectionnements au traitement des esters cellulosiques
FR39564E (fr) Perfectionnements à la fabrication ou au traitement des matières textiles ou autres
FR713557A (fr) Perfectionnements dans le traitement de matières siliceuses
FR668406A (fr) Perfectionnements au traitement des matières phosphatiques
FR700711A (fr) Perfectionnements au traitement des matières textiles et autres
FR639165A (fr) Perfectionnements au réglage des surchauffeurs
FR675354A (fr) Perfectionnements au traitement des matières cellulosïques
FR36935E (fr) Perfectionnements au traitement des matières cellulosiques
FR702353A (fr) Perfectionnements au traitement des matières cellulosiques
FR680255A (fr) Perfectionnements apportés au traitement de matières hydrocarbonées
FR681060A (fr) Perfectionnements au traitement de matières artificielles
FR671235A (fr) Perfectionnements apportés au traitement de matières subdivisées
FR702448A (fr) Perfectionnements au traitement des revêtements de routes
FR715256A (fr) Perfectionnements au traitement de l'eau
FR686332A (fr) Perfectionnements au traitement des matières cellulosiques
FR718727A (fr) Perfectionnements au traitement des pyrites
FR690406A (fr) Perfectionnements au traitement des matières textiles
FR694736A (fr) Perfectionnements apportés au traitement des matières fibreuses
FR37813E (fr) Perfectionnements au traitement de matières artificielles
FR683077A (fr) Perfectionnements au traitement de matières artificielles
FR708020A (fr) Perfectionnements apportés au laminage des disques
FR710640A (fr) Perfectionnements au traitement des matières cellulosiques