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.)
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.)
Hoechst AG
Original Assignee
Hoechst AG
Farbwerke Hoechst AG
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 Hoechst AG, Farbwerke Hoechst AGfiledCriticalHoechst AG
Publication of ES252772A2publicationCriticalpatent/ES252772A2/en
Improvements in the subject of the main patent number 241699 by: process for roasting sulfur minerals, consisting of a rotating tubular furnace provided with turning devices for the calcination of sulfur-containing metalliferous minerals, such as iron pyrite, characterized in that the cooling elements are provided with fins that in their combination serve both for cooling and for transporting the material. (Machine-translation by Google Translate, not legally binding)
ES0252772A1958-10-221959-10-21Procedure for the testing of sulfurated minerals (Machine-translation by Google Translate, not legally binding)
ExpiredES252772A2
(en)
Improvements for the desaredination of ashes of calcinated pirites and arsenical west iron minerals (Machine-translation by Google Translate, not legally binding)
Improvements in or relative to the foundry of metallic materials containing lead and zinc in a high oven (Machine-translation by Google Translate, not legally binding)
Procedure for the sulfature of non-ferrous metals which are located in ferreus minerals or other minerals finally distributed. (Machine-translation by Google Translate, not legally binding)