Invention Grant
- Patent Title: Process and reagents for the inhibition or reduction of scale formation during phosphoric acid production
- Patent Title (中): 在磷酸生产过程中抑制或减少氧化皮形成的方法和试剂
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Application No.: US12888853Application Date: 2010-09-23
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Publication No.: US09242863B2Publication Date: 2016-01-26
- Inventor: Sathanjheri A. Ravishankar , Bing Wang
- Applicant: Sathanjheri A. Ravishankar , Bing Wang
- Applicant Address: US DE Wilmington
- Assignee: CYTEC TECHNOLOGY CORP.
- Current Assignee: CYTEC TECHNOLOGY CORP.
- Current Assignee Address: US DE Wilmington
- Agent Charles E. Bell
- Main IPC: C01B25/16
- IPC: C01B25/16 ; C01B25/22
Abstract:
Processes and reagents for inhibiting or eliminating scale formation during wet-process phosphoric acid production are provided and include adding to a wet-process phosphoric acid production stream a scale inhibiting amount of a reagent having an aliphatic or aromatic compound containing at least two hydroxy groups, and at least one amine.
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