04436681 is referenced by 18 patents and cites 15 patents.

A process for producing an iron oxide weighting material from an iron chloride solution. The iron chloride solution is introduced into an elevated temperature reactor as an atomized mist. The moisture is evaporated from the mist to form iron chloride solids which then react with the steam produced during the evaporation to form particulate iron oxides and hydrogen chloride gas. The iron oxides then are compacted and introduced into a calcination zone maintained at a temperature in the range of from about 400.degree. C. to about 1300.degree. C. The compacted iron oxide is calcined to reduce the surface area of the particles. The calcined iron oxide then is ground to a predetermined particle size.

Title
Process for producing iron oxide weighting material from iron chloride solutions
Application Number
6/378784
Publication Number
4436681
Application Date
May 17, 1982
Publication Date
March 13, 1984
Inventor
O L Daigle
2716 NW. 59th St., Oklahoma City, 73112
OK, US
Haywood A Perkins
2905 Crown Colony Ct., Mobile, 36609
AL, US
Virgil J Barczak
2500 NW. 109th St., Oklahoma City, 73120
OK, US
IPC
B28B 11/00
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