GB1400885A - Granular red lead and process for continuous production thereof - Google Patents

Granular red lead and process for continuous production thereof

Info

Publication number
GB1400885A
GB1400885A GB2717372A GB2717372A GB1400885A GB 1400885 A GB1400885 A GB 1400885A GB 2717372 A GB2717372 A GB 2717372A GB 2717372 A GB2717372 A GB 2717372A GB 1400885 A GB1400885 A GB 1400885A
Authority
GB
United Kingdom
Prior art keywords
red lead
granular
weight
lead
granular red
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
GB2717372A
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.)
Dai Nippon Toryo KK
Original Assignee
Dai Nippon Toryo KK
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 Dai Nippon Toryo KK filed Critical Dai Nippon Toryo KK
Priority to GB2717372A priority Critical patent/GB1400885A/en
Publication of GB1400885A publication Critical patent/GB1400885A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/08—Rotary-drum furnaces, i.e. horizontal or slightly inclined externally heated
    • 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
    • C01G21/10—Red lead [Pb3O4]
    • 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
    • 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
    • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

1400885 Granular red lead DAI NIPPON TORYO KK 9 June 1972 27173/72 Heading C1A [Also in Division F4] Granular red lead containing not less than 80% Pb 3 O 4 (preferably not less than 90%) and having a grain diameter of from 10 to 30 Tyler mesh is made by adding from 6 to 10% by weight of water to litharge from an oxidation pot process or a lead suboxide powder (both defined as mixtures of 32 to 5% Pb and 68 to 85% PbO respectively, kneading and granulating the resulting product to grains of diameter of not more than 2 mm. (especially from 0À7 to 1À2 mm.) aging the granular product at room temperature with agitation in order to reduce the water content to from 0À5 to 7% by weight (preferably 0À8 to 2À0% by weight) and the metallic lead content to not more than 5%, (especially to not more than 3%) and finally oxidizing the aged product at a temperature of from 380‹ to 480‹ C. (especially 400‹ to 450‹ C.) for from 4 to 6 hours in a rotary kiln to obtain the granular red lead. Reference has been directed by the Comptroller to Specification 1,247,898.
GB2717372A 1972-06-09 1972-06-09 Granular red lead and process for continuous production thereof Expired GB1400885A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2717372A GB1400885A (en) 1972-06-09 1972-06-09 Granular red lead and process for continuous production thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2717372A GB1400885A (en) 1972-06-09 1972-06-09 Granular red lead and process for continuous production thereof

Publications (1)

Publication Number Publication Date
GB1400885A true GB1400885A (en) 1975-07-16

Family

ID=10255392

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2717372A Expired GB1400885A (en) 1972-06-09 1972-06-09 Granular red lead and process for continuous production thereof

Country Status (1)

Country Link
GB (1) GB1400885A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4117104A (en) * 1976-05-13 1978-09-26 Mizusawa Kagaku Kogyo Kabushiki Kaisha Novel lead monoxide and process for preparation thereof
EP0375245A1 (en) * 1988-12-12 1990-06-27 Matsushita Electric Industrial Co., Ltd. Method and apparatus for making highly oxidized lead powder
US5482689A (en) * 1989-07-10 1996-01-09 Heubach & Lindgens Gmbh & Co. Kg. Process for the accelerated production of red lead oxide
US5540915A (en) * 1988-12-12 1996-07-30 Matsushita Electric Industrial Co., Ltd. Method for making highly oxidized lead powder used for a lead storage battery

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4117104A (en) * 1976-05-13 1978-09-26 Mizusawa Kagaku Kogyo Kabushiki Kaisha Novel lead monoxide and process for preparation thereof
EP0375245A1 (en) * 1988-12-12 1990-06-27 Matsushita Electric Industrial Co., Ltd. Method and apparatus for making highly oxidized lead powder
US5540915A (en) * 1988-12-12 1996-07-30 Matsushita Electric Industrial Co., Ltd. Method for making highly oxidized lead powder used for a lead storage battery
US5482689A (en) * 1989-07-10 1996-01-09 Heubach & Lindgens Gmbh & Co. Kg. Process for the accelerated production of red lead oxide

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee