Eli Y Salem80 Roseld Ave, Deal Park, NJ 07723

5397477, Mar 14, 1995

Jan 11, 1993

8/002995

Eli Salem - Deal NJ
Robert Kunin - Trenton NJ

The Graver Company - Union NJ

C02F 142

210683

The invention provides a method for removing metal oxides and colloidal material from high-resistivity water streams at a relatively high removal efficiency. The method includes hydrating a highly ionized dual morphology ion exchange resin in a macroreticular, desiccated morphology to produce a macroreticular, hydrated morphology. A water stream which is brought into contact with the resin is purified. The water stream may, optionally, also be contacted with both a cation exchange resin and an anion exchange resin. The invention additionally provides a method for selecting ion exchange resins which are particularly suited for use in removing metal oxides from a condensate stream. The method serves to narrow the field of candidates for pilot-scale resin testing with industrial water streams.

4065388, Dec 27, 1977

Mar 3, 1976

5/663369

George Flynn - Bridgewater Township NJ
Eli Salem - Brooklyn NY

Ecodyne Corporation - Union NJ

B01D 2324

210 80

A process for scrubbing undissolved impurities from the upper portion of an ion exchange resin filtration bed is disclosed wherein air is introduced in the upper portion of the bed and develops a pressure within the vessel. This pressure subsequently forces rinse water down through the upper portion of the bed and out of the vessel. The gas is introduced into the bed and the water is drained therefrom at a level below the bed's upper surface but above a substantial lower portion of the resin bed. In this manner, lesser quantities of scrubbing fluids are required and the majority of the resin material is left undisturbed to maintain maximum ion exchange capacity.

4564455, Jan 14, 1986

Dec 13, 1983

6/560806

George C. Flynn - Chester NJ
Eli Salem - Deal NJ
Robert Kunin - Yardley PA

The Graver Company - Union NJ

C02F 142

210675

The present invention relates to a method for purifying aqueous solutions or condensate in a three component resin system comprising a mixed bed of a strongly basic anion exchange resin, a strongly acidic cation exchange resin and a weakly acidic cation exchange resin. According to the present method, aqueous solutions can be treated to remove metal ions and corrosion products along with ammonia and other volatile amines so that metal ion leakage is substantially reduced and the run length of the resin system is increased. A method for separating and isolating the resins of the three component system is also described.

4547291, Oct 15, 1985

Dec 12, 1983

6/560812

Robert Kunin - Yardley PA
Eli Salem - Deal NJ

The Graver Company - Union NJ

B01J 4704

210670

A method for treating aqueous solutions by ion exchange uses a weakly acidic cation exchange resin and a strongly basic anion exchange resin to remove corrosion products and metal ion leakage from a solution while substantially reducing the quantity of acid required to regenerate the cation exchange resin. Substantial quantities of ammonia and other volatile amines are not removed from the solution during the treatment process.

5601704, Feb 11, 1997

Apr 11, 1994

8/225650

Eli Salem - Deal NJ
Frank Morenski - Sparta NJ

The Graver Company - Union NJ

C02F 152

210 86

An automatic feedback control system for a water treatment apparatus, such as a recirculating solids contact clarifier, that maintains steady-state operation of the clarifier by accurately measuring the concentration of suspended solids at designated portions of the clarifier and automatically adjusting clarifier variables to maintain optimum conditions despite changes in the inlet flow rate, composition or temperature.

4568466, Feb 4, 1986

Dec 13, 1983

6/561458

Eli Salem - Deal NJ
Robert Kunin - Yardley PA

The Graver Company - Union NJ

C02F 142

210663

A method for treating aqueous solutions by ion exchange uses a weakly acidic cation exchange resin to remove ammonia and other volatile amines along with corrosion products and metal ion leakage from a solution while substantially reducing the quantity of acid required to regenerate the cation exchange resin. The solution can be passed through a conventional mixed bed comprising a strongly acidic cation exchange resin and a strongly basic anion exchange resin after the pretreatment.

4548717, Oct 22, 1985

Dec 13, 1983

6/560814

Robert Kunin - Yardley PA
Eli Salem - Deal NJ

The Graver Company - Union NJ

B01J 4704

210670

A method for treating aqueous solutions by ion exchange uses a weakly acidic cation exchange resin and a strongly basic anion exchange resin to remove ammonia and other volatile amines along with corrosion products and metal ion leakage from a solution while substantially reducing the quantity of acid required to regenerate the cation exchange resin.

5022997, Jun 11, 1991

Dec 18, 1989

7/452194

Eli Salem - Deal NJ
Bruce L. Libutti - Teaneck NJ
Robert Kunin - Yardley PA

The Graver Company - Union NJ

C02F 128
C02F 142
B01D 3702

210670

Methods for treating aqueous solutions and for recovering specific chemical products from an aqueous solution by ion exchange or adsorption by passing the aqueous solution through a regenerable filter bed comprising a flocculated mixture of finely divided active particulate material and filter aid materials having a depth of from about 3. 0 inches to about 60 inches.