FR2123852A5 - Granulation of litharge powder - with dilute sodium hydroxide to reduce air pollution - Google Patents
Granulation of litharge powder - with dilute sodium hydroxide to reduce air pollutionInfo
- Publication number
- FR2123852A5 FR2123852A5 FR7103538A FR7103538A FR2123852A5 FR 2123852 A5 FR2123852 A5 FR 2123852A5 FR 7103538 A FR7103538 A FR 7103538A FR 7103538 A FR7103538 A FR 7103538A FR 2123852 A5 FR2123852 A5 FR 2123852A5
- Authority
- FR
- France
- Prior art keywords
- granulation
- sodium hydroxide
- air pollution
- reduce air
- dilute sodium
- 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
Links
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 title abstract 6
- HTUMBQDCCIXGCV-UHFFFAOYSA-N lead oxide Chemical compound [O-2].[Pb+2] HTUMBQDCCIXGCV-UHFFFAOYSA-N 0.000 title abstract 2
- YEXPOXQUZXUXJW-UHFFFAOYSA-N lead(II) oxide Inorganic materials [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 title abstract 2
- 238000003915 air pollution Methods 0.000 title 1
- 230000003179 granulation Effects 0.000 title 1
- 238000005469 granulation Methods 0.000 title 1
- 239000000843 powder Substances 0.000 title 1
- 238000001035 drying Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G21/00—Compounds of lead
- C01G21/02—Oxides
- C01G21/06—Lead monoxide [PbO]
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/50—Agglomerated particles
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
Method of prodn of granulated litharge by moist treatment in a classical appts followed by drying in which the moistening liq. contains 0.2-1 g/l NaOH. The drying is then effected at 489 degrees C pref. 350-450 degrees C for 5-60 mins. Less fines are produced contributing to a reduction of hazards to personnel.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7103538A FR2123852A5 (en) | 1971-02-03 | 1971-02-03 | Granulation of litharge powder - with dilute sodium hydroxide to reduce air pollution |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7103538A FR2123852A5 (en) | 1971-02-03 | 1971-02-03 | Granulation of litharge powder - with dilute sodium hydroxide to reduce air pollution |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2123852A5 true FR2123852A5 (en) | 1972-09-15 |
Family
ID=9071302
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7103538A Expired FR2123852A5 (en) | 1971-02-03 | 1971-02-03 | Granulation of litharge powder - with dilute sodium hydroxide to reduce air pollution |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2123852A5 (en) |
-
1971
- 1971-02-03 FR FR7103538A patent/FR2123852A5/en not_active Expired
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |