HUT57626A - Method for producing cast stone of high-strength, high permeability and filtering effect and protecting driven wells against sanding up - Google Patents

Method for producing cast stone of high-strength, high permeability and filtering effect and protecting driven wells against sanding up

Info

Publication number
HUT57626A
HUT57626A HU117790A HU117790A HUT57626A HU T57626 A HUT57626 A HU T57626A HU 117790 A HU117790 A HU 117790A HU 117790 A HU117790 A HU 117790A HU T57626 A HUT57626 A HU T57626A
Authority
HU
Hungary
Prior art keywords
strength
filtering effect
cast stone
producing cast
high permeability
Prior art date
Application number
HU117790A
Other languages
Hungarian (hu)
Other versions
HU901177D0 (en
Inventor
Tibor Csabai
Miklos Magyar
Tibor Plajner
Takacs Cecilia Fuezesne
Ambrus Andristyak
Mihaly Kun
Istvan Munkacsi
Istvan Balazs
Original Assignee
Magyar Szenhidrogenipari
Koeolajkutato Vallalat
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.)
Filing date
Publication date
Application filed by Magyar Szenhidrogenipari, Koeolajkutato Vallalat filed Critical Magyar Szenhidrogenipari
Priority to HU117790A priority Critical patent/HUT57626A/en
Publication of HU901177D0 publication Critical patent/HU901177D0/en
Publication of HUT57626A publication Critical patent/HUT57626A/en

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  • Mold Materials And Core Materials (AREA)

Abstract

Furan resin, phenol-formaldehyde- or epoxy-resin is mixed with pref. polymerisation catalyst (corresp. to pref. setting timers), and with high strength granular matter. Above compsn. is mixed with 5-40 vol.% of a water or dil. acid leachable salt. E.g. completed mixt. is cast in moulds, set and its soluble salt content is washed out.
HU117790A 1990-02-28 1990-02-28 Method for producing cast stone of high-strength, high permeability and filtering effect and protecting driven wells against sanding up HUT57626A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
HU117790A HUT57626A (en) 1990-02-28 1990-02-28 Method for producing cast stone of high-strength, high permeability and filtering effect and protecting driven wells against sanding up

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HU117790A HUT57626A (en) 1990-02-28 1990-02-28 Method for producing cast stone of high-strength, high permeability and filtering effect and protecting driven wells against sanding up

Publications (2)

Publication Number Publication Date
HU901177D0 HU901177D0 (en) 1990-05-28
HUT57626A true HUT57626A (en) 1991-12-30

Family

ID=10953195

Family Applications (1)

Application Number Title Priority Date Filing Date
HU117790A HUT57626A (en) 1990-02-28 1990-02-28 Method for producing cast stone of high-strength, high permeability and filtering effect and protecting driven wells against sanding up

Country Status (1)

Country Link
HU (1) HUT57626A (en)

Also Published As

Publication number Publication date
HU901177D0 (en) 1990-05-28

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Legal Events

Date Code Title Description
DGB9 Succession in title of applicant

Owner name: MOL MAGYAR OLAJ- ES GAZIPARI RT., HU

DGB9 Succession in title of applicant

Owner name: MOL MAGYAR OLAJ- ES GAZIPARI RT., HU

DFA9 Temporary prot. cancelled due to abandonment