Invention Grant
- Patent Title: Production of red iron oxide pigment
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Application No.: US15034218Application Date: 2013-11-08
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Publication No.: US10221326B2Publication Date: 2019-03-05
- Inventor: Waldemar Czaplik , Juergen Kischkewitz , Wolfgang Oehlert , Huajun Li
- Applicant: LANXESS Deutschland GmbH , LANXESS Specialty Chemicals Co., Ltd.
- Applicant Address: DE Cologne
- Assignee: LANXESS Deutschland GmbH
- Current Assignee: LANXESS Deutschland GmbH
- Current Assignee Address: DE Cologne
- International Application: PCT/CN2013/086804 WO 20131108
- International Announcement: WO2015/066905 WO 20150514
- Main IPC: B01D53/00
- IPC: B01D53/00 ; C09D17/00 ; C01G49/06 ; C09C1/24 ; B01D53/56 ; B01D53/78 ; B01J8/00 ; B01J10/00 ; C02F1/58 ; C02F101/16 ; C02F103/34
Abstract:
The present invention relates to an improved process for producing red iron oxide pigments by the Penniman process with nitrate (also called nitrate process or direct red process) and to apparatus for implementing this process, and also to the use of the plant for producing red iron oxide pigments by the Penniman process with nitrate.
Public/Granted literature
- US20160272836A1 PRODUCTION OF RED IRON OXIDE PIGMENT Public/Granted day:2016-09-22
Information query
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