Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...
Patent
1993-06-09
1994-10-11
McCarthy, Neil
Liquid purification or separation
Processes
Making an insoluble substance or accreting suspended...
210719, 210723, 210734, 210912, 252175, 252180, C02F 162, C02F 170
Patent
active
053544781
ABSTRACT:
An aqueous solution of sodium borohydride, sodium hydroxide, and an anionic polymer is useful for the reduction and separation of metals in wastewater and it is hydrolytically stable for a period of six months. It may also contain an alkali metal aluminate or alum. Thus, a one-package treatment of wastewater is provided by the invention described herein.
REFERENCES:
patent: 4975203 (1990-12-01), Cook et al.
Cook Michael A.
Guilbault Lawrence J.
Ulman Jeffrey A.
Verleye Willy
Verstraeten Walter
Didrick Robert M.
McCarthy Neil
Morton International Inc.
White Gerald K.
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