GB1069430A - Process and apparatus for producing litharge - Google Patents
Process and apparatus for producing lithargeInfo
- Publication number
- GB1069430A GB1069430A GB5090863A GB5090863A GB1069430A GB 1069430 A GB1069430 A GB 1069430A GB 5090863 A GB5090863 A GB 5090863A GB 5090863 A GB5090863 A GB 5090863A GB 1069430 A GB1069430 A GB 1069430A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pot
- litharge
- contents
- stream
- metallic lead
- 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
- HTUMBQDCCIXGCV-UHFFFAOYSA-N lead oxide Chemical compound [O-2].[Pb+2] HTUMBQDCCIXGCV-UHFFFAOYSA-N 0.000 title abstract 4
- YEXPOXQUZXUXJW-UHFFFAOYSA-N lead(II) oxide Inorganic materials [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 title abstract 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract 3
- 239000002245 particle Substances 0.000 abstract 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 239000010419 fine particle Substances 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 238000000926 separation 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
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/10—Solid density
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Heat Sensitive Colour Forming Recording (AREA)
Abstract
<PICT:1069430/C1/1> Litharge is produced by feeding molten lead into an oxide pot of the Barton type in a continuous stream at a rate which maintains the contents of the pot at a temperature of at least 621 DEG F. (the melting point of metallic lead) but below 900 DEG F., vigorously agitating the pot contents by means of a stirrer which throws the pot contents against a large fixed baffle, introducing a stream of air into the pot, and maintaining the pot free from any pool of molten metallic lead, the resulting product being carried away from the pot via a cyclone separation system where the heavier products are separated and returned to the pot as a dross which is maintained in the pot at all times. The stream of air is introduced into the lower portion of the pot, i.e. just above the stirrer where the majority of the dross is located. The litharge product is of fine particle size, for example 5 microns, having a high acid absorption value (between 160 and 180 as defined in the Specification), low apparent density (20 to 25 grams per cubic inch), and low content of metallic lead (below 4%, preferably below 2%, by weight). The litharge may be produced in apparatus, see Fig. 1, comprising a Barton pot 10 which is similar to that pot disclosed in Specification 501,175, but which is modified by having the air inlet pipe 16 extending into the lower portion of the pot. The apparatus is generally similar to that disclosed in Specification 966,925, but is modified by having the elongated uptake 17 communicating and co-operating with a cyclone separator 18, desirable size particles being passed via duct 17a to the settling chamber 19, larger and heavier particles being passed from the lower end of the cyclone separator by rotary feeder 41 either via screw conveyer 42, return tube 43 and the air inlet pipe to the pot or via rotary feeder 44 and screw conveyer 45 to the settling chamber. Reference has been directed by the Comptroller to Specification 966,925.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US24805762A | 1962-12-28 | 1962-12-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1069430A true GB1069430A (en) | 1967-05-17 |
Family
ID=22937487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5090863A Expired GB1069430A (en) | 1962-12-28 | 1963-12-24 | Process and apparatus for producing litharge |
Country Status (5)
| Country | Link |
|---|---|
| DE (1) | DE1467347B2 (en) |
| ES (1) | ES294848A1 (en) |
| GB (1) | GB1069430A (en) |
| NL (1) | NL141154B (en) |
| SE (1) | SE315671B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002042213A2 (en) * | 2000-11-24 | 2002-05-30 | Hammond Group Inc. | Chemical reactor vessel and process for the continuous oxidation of lead to a lead oxide |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3016984C2 (en) * | 1980-05-02 | 1984-03-29 | Goslarer Farbenwerke Dr. Hans Heubach GmbH & Co KG, 3394 Langelsheim | Process and device for the one-step production of technical lead oxide |
| DE3829534A1 (en) * | 1988-08-31 | 1990-03-08 | Heubach & Lindgens Gmbh & Co K | METHOD FOR FINALLY BURNING LEAD |
-
1963
- 1963-12-23 NL NL302482A patent/NL141154B/en unknown
- 1963-12-24 GB GB5090863A patent/GB1069430A/en not_active Expired
- 1963-12-26 ES ES294848A patent/ES294848A1/en not_active Expired
- 1963-12-27 DE DE19631467347 patent/DE1467347B2/en active Pending
- 1963-12-27 SE SE1447563A patent/SE315671B/xx unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002042213A2 (en) * | 2000-11-24 | 2002-05-30 | Hammond Group Inc. | Chemical reactor vessel and process for the continuous oxidation of lead to a lead oxide |
| WO2002042213A3 (en) * | 2000-11-24 | 2002-09-12 | Hammond Group Inc | Chemical reactor vessel and process for the continuous oxidation of lead to a lead oxide |
Also Published As
| Publication number | Publication date |
|---|---|
| SE315671B (en) | 1969-10-06 |
| DE1467347B2 (en) | 1971-05-06 |
| ES294848A1 (en) | 1964-06-01 |
| NL141154B (en) | 1974-02-15 |
| DE1467347A1 (en) | 1969-10-09 |
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