Patent · US Active

Chelating base product for use in water-based system treatments

US9938171B2 · kind B2 · utility

6Cited by

10References

29Claims

0Family size

Assignee

Earth Science Laboratories, Inc. · US

Inventors

David Nicholas · Pensacola, US
Reid Henry Bowman · Ojai, US
Freddie L. Singleton · Fruit Cove, US

Key dates

Filing date	Jun 16, 2016
Grant date	Apr 10, 2018
Priority date	—
Expiry date	Aug 28, 2036

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC02F2303/04
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

A base product fluid is produced by adding anhydrous liquid ammonia and a first portion of sulfuric acid to water in a process line to form a mixed fluid. The mixed fluid may be cooled and a second portion of sulfuric acid may be added to the mixed fluid to form the base product fluid. The base product fluid may include a molecular compound that is a chelating compound. The molecular compound may have the formula: ((NH4)2SO4)a.(H2SO4)b.(H2O)c.(NH4HSO4)x. In the formula, a may be between 1 and 5, b may be between 1 and 5, c may be between 1 and 5, and x may be between 1 and 10.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.