Patent US4079001A successfully refreshed from Google Patents.
US4079001A
Expired / Lapsed
US
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Process for the purification of industrial effluents
Assignee: Novartis Corp
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Filing: 1975-09-05
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Granted: 1978-03-14
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Expires: 1995-09-05
Abstract
Abstract A process for the purification of industrial effluents which comprises bringing said effluents into contact with an adsorption material which contains a carrier that is pretreated with a precipitate of a basic nitrogenous polymeric compound with an activated clay mineral.
Inventors
- 👤 Jaroslav Haase
- 👤 Quentin Bowes
- 👤 Rudolf F. Wurster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:19
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/28; C02F1/288; B; B01; B01J; B01J20/00; B01J20/30; B01J20/32; B01J20/3202; B01J20/3206; B01J20/3208; B01J20/3212; B01J20/3231; B01J20/3242; B01J20/3268; B01J20/3272; B01J20/3276; Y; Y10; Y10S; Y10S210/00; Y10S210/902; Y10S210/911; Y10S210/928
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
67 words
A process for the purification of industrial effluents which comprises bringing said effluents into contact with an adsorption material containing a cellulosic carrier material which has been pretreated with a clay complex compound precipitate of A. polyamidopolyamines of a polymeric fatty acid and a polyamine; and B. a monovalent cation containing activated clay mineral, possessing an ion exchange capacity of at least 20 milliequivalents/100 g of silicate.
Claim 2
Dependent Claim
67 words
A process for the purification of industrial effluents which comprises bringing said effluents into contact with an adsorption material containing a cellulosic carrier material which has been pretreated with a clay complex compound precipitate of A. polyamidopolyamines of a polymeric fatty acid and a polyamine; and B. a monovalent cation containing activated clay mineral, possessing an ion exchange capacity of at least 20 milliequivalents/100 g of silicate.
Claim 3
Dependent Claim
29 words
The process of claim 1, wherein the effluents are waste liquors which occur in the textile, paper or leather industry or in the manufacture of dyes or optical brighteners.
Claim 4
Dependent Claim
16 words
The process of claim 1, wherein the effluents are waste liquors which contain organic ionic substances.
Claim 5
Dependent Claim
27 words
The process of claim 3, wherein the effluents contain anionic or cationic dyes, optical brighteners, textile or dyeing assistants, surfactants, tannins or mixtures of such ionic substances.
Claim 6
Dependent Claim
21 words
The process of claim 1, wherein the effluents contain mixtures of anionic and/or cationic dyes with anionic, cationic and/or non-ionogenic assistants.
Claim 7
Dependent Claim
19 words
The process of claim 1, wherein the purification of the effluents is carried out at 10° to 150° C.
Claim 8
Dependent Claim
14 words
The process of claim 6, wherein the temperature is from 30° to 100° C.
Claim 9
Dependent Claim
20 words
The process of claim 1, wherein the purification is carried out by a stirring process or a solid bed process.
Claim 10
Dependent Claim
13 words
The process of claim 1, wherein the adsorption material additionally contains activated charcoal.
Claim 11
Dependent Claim
27 words
The process of claim 1, wherein the basic polymer is a polyamide of a dibasic carboxylic acid which contains 2 to 10 carbon atoms and a polyamine.
Claim 12
Dependent Claim
27 words
The process of claim 1, wherein the polyamidepolyamine has an amino value in the range of 200 to 650 milligrams of potassium hydroxide per gram of polyamidepolyamine.
Claim 13
Dependent Claim
17 words
The process of claim 1, wherein the adsorption material contains additionally a salt of a polyvalent metal.
Claim 14
Dependent Claim
18 words
The process of claim 1, wherein the adsorption material contains additionally a hydrated oxide of a polyvalent metal.
Claim 15
Dependent Claim
20 words
The process of claim 1, wherein the adsorption material contains additionally a salt of a polyvalent metal and activated charcoal.
Claim 16
Dependent Claim
21 words
The process of claim 1, wherein the adsorption material contains additionally a hydrated oxide of a polyvalent metal and activated charcoal.
Claim 17
Dependent Claim
15 words
The process of claim 1, wherein the activated clay mineral is an activated montmorillonite-type mineral.
Claim 18
Dependent Claim
16 words
The process of claim 16, wherein the activated clay mineral is activated bentonite or activated montmorillonite.
Claim 19
Dependent Claim
47 words
A process according to claim 1 for removing a contaminant from an aqueous effluent comprising the steps of a. providing an adsorption agent by adding together said cellulosic carrier material, said polyamidopolyamines and said activated clay mineral, and b. adding the adsorption agent to the aqueous effluent.
Claim 20
Dependent Claim
43 words
The process of claim 18, wherein the adsorption agent of step (a) is provided by mixing a polyvalent metal salt or a hydrated oxide of a polyvalent metal with the carrier material which is pretreated with the polyamidopolyamine and the activated clay mineral.
Claim 21
Dependent Claim
15 words
The process of claim 19 comprising the subsequent addition of activated charcoal in step (a).
Claim 22
Dependent Claim
15 words
The process of claim 18 comprising the subsequent addition of activated charcoal in step (a).
Claim 23
Dependent Claim
21 words
The process of claim 18 comprising the further final step of separating the used adsorption agent from the purified aqueous effluent.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-03-13 | 1981-09-12 | 1982-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-13 | 1985-09-12 | 1986-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-13 | 1989-09-12 | 1990-03-14 | $7700.00 | Window Closed / Lapsed |