GB1046966A

GB1046966A – Improvements in or relating to filter treating processes
– Google Patents

GB1046966A – Improvements in or relating to filter treating processes
– Google Patents
Improvements in or relating to filter treating processes

Info

Publication number
GB1046966A

GB1046966A
GB33769/63A
GB3376963A
GB1046966A
GB 1046966 A
GB1046966 A
GB 1046966A
GB 33769/63 A
GB33769/63 A
GB 33769/63A
GB 3376963 A
GB3376963 A
GB 3376963A
GB 1046966 A
GB1046966 A
GB 1046966A
Authority
GB
United Kingdom
Prior art keywords
carbon atoms
filter
composition
water
solution
Prior art date
1962-08-31
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Expired

Application number
GB33769/63A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Armour and Co

Original Assignee
Armour and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1962-08-31
Filing date
1963-08-26
Publication date
1966-10-26

1963-08-26
Application filed by Armour and Co
filed
Critical
Armour and Co

1966-10-26
Publication of GB1046966A
publication
Critical
patent/GB1046966A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

Classifications

C—CHEMISTRY; METALLURGY

C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES

C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL

C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent

C11D1/38—Cationic compounds

C11D1/645—Mixtures of compounds all of which are cationic

B—PERFORMING OPERATIONS; TRANSPORTING

B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

B01D—SEPARATION

B01D29/00—Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor

B—PERFORMING OPERATIONS; TRANSPORTING

B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

B01D—SEPARATION

B01D37/00—Processes of filtration

B—PERFORMING OPERATIONS; TRANSPORTING

B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

B01D—SEPARATION

B01D37/00—Processes of filtration

B01D37/02—Precoating the filter medium; Addition of filter aids to the liquid being filtered

B—PERFORMING OPERATIONS; TRANSPORTING

B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

B01D—SEPARATION

B01D41/00—Regeneration of the filtering material or filter elements outside the filter for liquid or gaseous fluids

B01D41/04—Regeneration of the filtering material or filter elements outside the filter for liquid or gaseous fluids of rigid self-supporting filtering material

B—PERFORMING OPERATIONS; TRANSPORTING

B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

B01D—SEPARATION

B01D2201/00—Details relating to filtering apparatus

B01D2201/08—Regeneration of the filter

B01D2201/085—Regeneration of the filter using another chemical than the liquid to be filtered

Abstract

A composition suitable for cleaning filter blankets, e.g filter blankets made from «Dacron» (Registered Trade Mark) used in sewage disposal plants, comprises (a) a quaternary ammonium salt containing at least one alkyl group of 10-18 carbon atoms, (b) an alkyl primary amine salt containing 10-18 carbon atoms in the alkyl substituent and (c) a quaternary ammonium compound having at least one alkyl group of 10-18 carbon atoms and containing 2-25 moles of an alkylene oxide substituent having 2-4 carbon atoms. The anion of the quaternary ammonium salt (a) may be a chloride or nitrite radical. The amine salt (b) may be the hydrochloride, acetate, nitrite, sulphate, hydrobromide or hydroiodide. The anion of the quaternary ammonium compound (c) may be a chloride or methyl sulphate radical. The components (a), (b), and (c) may be present in the composition in about equal proportions. The composition may be prepared by first forming a solution of the amine salt (b) in an isopropanol or isopropanol-water solution and then adding the other two components prior to diluting with water to apply it to the filter blanket. In the examples a composition comprising hydrogenated tallow trimethyl ammonium chloride, dodecylamine hydrochloride and hydrogenated tallow bis-(2-hydroxy propyl) methyl ammonium methyl sulphate is used.ALSO:Filter blankets, e.g. filter blankets made from «Dacron» (Registered Trade Mark) used in sewage disposal plants, are cleaned and proofed against fungi and bacteria by treating them for a period in excess of an hour with a composition comprising (a) a quaternary ammonium salt containing at least one alkyl group of 10-18 carbon atoms, (b) an alkyl primary amine salt containing 10-18 carbon atoms in the alkyl substituent and (c) a quaternary ammonium compound having at least one alkyl group of 10-18 carbon atoms and containing 2-25 moles of an alkylene oxide substituent having 2-4 carbon atoms. They may then be rinsed with water. The anion of the quarternary ammonium salt (a) may be a chloride or nitrite radical. The amine salt (b) may be the hydrochloride, acetate, nitrate sulphate, hydrobromide or hydroiodide. The anion of the quarternary ammonium compound (c) may be a chloride or methyl sulphate radical. The components (a), (b), and (c) may be present in the composition in about equal proportions. The composition may be prepared by first forming a solution of the amine salt (b) in an isopropanol or isopropenol-water solution and then adding the other two components prior to diluting with water to apply it to the filter blanket. The solution may be applied to the blanket by spraying or immersion. The blanket may be treated in situ on the filter drum by revolving the drum in the filter pan containing the treating solution and then rinsing with water.ALSO:Filter blankets, e.g. filter blankets made from «Dacron» (Registered Trade Mark) used in sewage disposal plants, are cleaned and proofed against fungi and bacteria by treating them for a period in excess of an hour with a composition comprising (a) a quaternary ammonium salt containing at least one alkyl group of 10-18 carbon atoms, (b) an alkyl primary amine salt containing 10-18 carbon atoms in the alkyl substituent and (c) a quaternary ammonium compound having at least one alkyl group of 10-18 carbon atoms and containing 2-25 moles of an alkylene oxide substituent having 2-4 carbon atoms. They may then be rinsed with water. The anion of the quarternary ammonium salt (a) may be a chloride or nitrite radical. The amine salt (b) may be the hydrochloride, acetate, nitrite sulphate, hydrobromide or hydroiodide. The anion of the quarternary ammonium compound (c) may be a chloride or methyl sulphate radical. The components (a), (b), and (e) may be present in the composition in about equal proportions. The composition may be prepared by first forming a solution of the amine salt (b) in an isopropanol or isopropanol-water solution and then adding the other two components prior to diluting with water to apply it to the filter blanket. The solution may be applied to the blanket by spraying or immersion. The blanket may be treated in situ on the filter drum by revolving the drum in the filter pan containing the treating solution and then rinsing with water.ALSO:Filter blankets, e.g. filter blankets made from «Dacron» (Registered Trade Mark) used in sewage disposal plants, are cleaned and proofed against fungi and bacteria by treating them for a period in excess of an hour with composition comprising (a) a quaternary ammonium salt containing at least one alkyl group of 10-18 carbon atoms, (b) an alkyl primary amine salt containing 10-18 carbon atoms in the alkyl substituent and (c) a quaternary ammonium compound having at least one alkyl group of 10-18 carbon atoms and containing 2.25 moles of an alkylene oxide substituent having 2-4 carbon atoms. They may then be rinsed with water. The anion of the quaternary ammonium salt (a) may be a chloride or nitrite radical. The amine salt (b) may be the hydrochloride, acetate, nitrite sulphate, hydrobromide or hydroiodide. The anion of the quaternary ammonium compound (c) may be a chloride or methyl sulphate radical. The components (a), (b), and (c) may be present in the composition in about equal proportions. The composition may be prepared by first forming a solution of the amine salt (b) in an isopropanol or isopropanol-water solution and then adding the other two components prior to diluting with water to apply it to the filter blanket. The solution may be applied to the blanket by spraying or immersion. The blanket may be treated in situ on the filter drum by revolving the drum in the filter pan containing the treating solution and then rinsing with water.

GB33769/63A
1962-08-31
1963-08-26
Improvements in or relating to filter treating processes

Expired

GB1046966A
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

US22087362A

1962-08-31
1962-08-31

Publications (1)

Publication Number
Publication Date

GB1046966A
true

GB1046966A
(en)

1966-10-26

Family
ID=22825369
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB33769/63A
Expired

GB1046966A
(en)

1962-08-31
1963-08-26
Improvements in or relating to filter treating processes

Country Status (3)

Country
Link

DE
(1)

DE1517627B1
(en)

FR
(1)

FR1367276A
(en)

GB
(1)

GB1046966A
(en)

Cited By (1)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

GB2122900A
(en)

*

1982-07-01
1984-01-25
Surgikos Inc
Disinfectant compositions having residual biocidal activity and wipes and sprays containing them

Families Citing this family (2)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

DE3229219C2
(en)

*

1982-08-05
1985-06-20
Klaus Jürgen Robert 6806 Viernheim Westram

Use of a surface-active substance as a backwashing agent for backwashable filter beds containing particles

DE3372715D1
(en)

*

1983-01-24
1987-09-03
Amsted Ind Inc
Solvent addition to deep bed filter

Family Cites Families (1)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

BE419429A
(en)

*

1935-02-16
1900-01-01

1963

1963-08-21
DE
DE19631517627D
patent/DE1517627B1/en
active
Pending

1963-08-23
FR
FR7838A
patent/FR1367276A/en
not_active
Expired

1963-08-26
GB
GB33769/63A
patent/GB1046966A/en
not_active
Expired

Cited By (1)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

GB2122900A
(en)

*

1982-07-01
1984-01-25
Surgikos Inc
Disinfectant compositions having residual biocidal activity and wipes and sprays containing them

Also Published As

Publication number
Publication date

DE1517627B1
(en)

1969-10-23

FR1367276A
(en)

1964-07-17

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