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.)
Dow Chemical Iberica SL
Original Assignee
Dow Unquinesa SA
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Filing date
Publication date
Application filed by Dow Unquinesa SAfiledCriticalDow Unquinesa SA
Priority to ES0264344ApriorityCriticalpatent/ES264344A1/en
Publication of ES264344A1publicationCriticalpatent/ES264344A1/en
A procedure for obtaining α FeOOH for application as yellow pigments of optimum quality, from a solution of SO4Fe (from caparrosa or solutions thereof), by oxidation thereof with air in the presence of Fe (OH) nuclei ) 2 partially oxidized and using as a neutralizing agent a fine dispersion of MgO or MgCO3 in water, in any concentration, but preferably from 20 to 60 g/liter. (Machine-translation by Google Translate, not legally binding)
ES0264344A1961-01-261961-01-26A process of obtaining afeooh (Machine-translation by Google Translate, not legally binding)
ExpiredES264344A1
(en)
Process for the production of new monoazo dyes which are sparingly soluble in water and free from acidic dissociating groups and metal complex-forming groups in water