DE267681C - - Google Patents
Info
- Publication number
- DE267681C DE267681C DENDAT267681D DE267681DA DE267681C DE 267681 C DE267681 C DE 267681C DE NDAT267681 D DENDAT267681 D DE NDAT267681D DE 267681D A DE267681D A DE 267681DA DE 267681 C DE267681 C DE 267681C
- Authority
- DE
- Germany
- Prior art keywords
- sand
- mortar
- acid
- lime
- silica
- Prior art date
- 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.)
- Active
Links
- 239000004576 sand Substances 0.000 claims description 14
- 239000004570 mortar (masonry) Substances 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 4
- OHORFAFFMDIQRR-UHFFFAOYSA-P Hexafluorosilicic acid Chemical compound [H+].[H+].F[Si-2](F)(F)(F)(F)F OHORFAFFMDIQRR-UHFFFAOYSA-P 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 150000002222 fluorine compounds Chemical class 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-N HF Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 8
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 3
- 235000015450 Tilia cordata Nutrition 0.000 description 3
- 235000011941 Tilia x europaea Nutrition 0.000 description 3
- 239000002969 artificial stone Substances 0.000 description 3
- 239000004571 lime Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005530 etching Methods 0.000 description 2
- 125000001153 fluoro group Chemical class F* 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- NGHMEZWZOZEZOH-UHFFFAOYSA-N silicic acid;hydrate Chemical compound O.O[Si](O)(O)O NGHMEZWZOZEZOH-UHFFFAOYSA-N 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L Calcium hydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N Silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- ABTOQLMXBSRXSM-UHFFFAOYSA-N Silicon tetrafluoride Chemical compound F[Si](F)(F)F ABTOQLMXBSRXSM-UHFFFAOYSA-N 0.000 description 1
- TWGUZEUZLCYTCG-UHFFFAOYSA-N Sodium fluorosilicate Chemical compound [Na+].[Na+].F[Si-2](F)(F)(F)(F)F TWGUZEUZLCYTCG-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive Effects 0.000 description 1
- SMYKVLBUSSNXMV-UHFFFAOYSA-J aluminum;tetrahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[Al+3] SMYKVLBUSSNXMV-UHFFFAOYSA-J 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- ZHPNWZCWUUJAJC-UHFFFAOYSA-N fluorosilicon Chemical compound [Si]F ZHPNWZCWUUJAJC-UHFFFAOYSA-N 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
KLASSE 806. GRUPPECLASS 806. GROUP
JULIUS JOACHIM in BERLIN.JULIUS JOACHIM in BERLIN.
Zur Aufschließung von Sand, der zur Mörtelbereitung bestimmt ist, und zur Anreicherung mit löslicher Kieselsäure wird nach vorliegender Erfindung eine Behandlung mit Kieselfluorwasserstoffsäure vorgenommen und diese in einem Kreisprozeß teilweise immer wieder verwertet. For breaking up sand intended for mortar preparation and for enrichment With soluble silicic acid, a treatment with silicofluoric acid is carried out according to the present invention made and partially recycled again and again in a circular process.
Grubenfeuchter, also nasser Sand, wird mit der genannten Säure übergössen und erwärmt. ίο Dabei zersetzt sich die Säure, die Sandkörner werden angeätzt, und es entsteht Kieselsäuregallerte. Der Sand wird somit in einen Zustand übergeführt, in dem er merklich mit dem Kalk _ reagiert. Er wird als Mörtelzusatzstoff wesentlich verbessert. Die bei der Erwärmung entstehenden Dämpfe enthalten Siliziumfiuorid und werden zu dessen Wiedergewinnung in Wasser geleitet. Hierbei entstehen Kieselfluorwasserstoffsäure und gallerteartiges Kieselsäurehydrat. ao Die Flüssigkeit wird mit der Gallerte immer wieder aufzuschließendem Mörtelsand zugegeben. Moist pit, i.e. wet sand, is doused with the acid mentioned and heated. ίο The acid decomposes, the grains of sand are etched, and silica gel is formed. The sand is thus converted into a state in which it is noticeably mixed with the lime _ reacted. It is significantly improved as a mortar additive. The ones that arise during heating Vapors contain silicon fluoride and are passed into water for recovery. This results in hydrofluoric acid and gelatinous silicic acid hydrate. ao The liquid is repeatedly added to the mortar sand to be broken down with the jelly.
Die vorbereitende Behandlung des Mörtelsandes nach der Erfindung wird in der Regel kurz vor der Zusammenstellung des Mörtels vorgenommen.The preparatory treatment of the mortar sand according to the invention is usually made shortly before the composition of the mortar.
Man richtet es vorteilhaft so ein, daß die Erwärmung des -Sandes mit der Abwärme von der Löschung des Kalkes oder Mörtels bewirkt wird.It is advantageous to set it up so that the heating of the sand with the waste heat from the deletion of the lime or mortar is effected.
Es kann auch z. B. von Natriumsiliziumfluorid ausgegangen werden.It can also e.g. B. from sodium silicon fluoride can be assumed.
Das neue Verfahren weicht wesentlich von den bisher bekannten Arbeitsweisen zur Erzeugung von Kunststeinen ab, bei denen ebenfalls gewisse Fluorverbindungen verwendet wer40 The new method differs significantly from the previously known procedures for the production of artificial stones from where also some fluorine compounds used who 40
den. So hat man Glas oder Gesteinspulver mit Flußsäure oder einem Fluorsalz angeätzt und mit Kalkhydrat und Sand verpreßt, um schließlich den Preßling noch in einer Lösung von Fluorsalz zu baden. Zu einer anderen Art Kunststein aus Zement und Sand wurde als Kittmittel ein Gemenge von Kieselfluorwasserstoffsäure, Kalkaluminat und löslicher Kieselsäure genommen. Unterschiedlich hiervon ist aber die eigenartige -Ausnutzung der Kieselfluorwasserstoffsäure zur Ätzung von Sand in der Wärme und der mit ihr ausgeführte Kreisprozeß, auf dem die Aktivierung von Sand für die Mörtelbereitung nach der Erfindung beruht. Im ersteren Falle wird bei gewöhnlicher Temperatur gearbeitet und das Glas oder aufschließbare Gesteinspulver ganz zersetzt unter Opferung des frei werdenden Fluorsiliziums. Im zweiten Fall kommt der Kieselfluorwasserstoft säure keine Ätzwirkung zu, sondern sie wird unmittelbar durch den Kalk der Kunststeinmasse gebunden; eine Aufschließung wäre auch zwecklos, da gefälltes Kieselsäurehydrat gesondert zugegeben wird.the. So one has etched glass or rock powder with hydrofluoric acid or a fluorine salt and with Hydrated lime and sand are pressed, and finally the pressed part is still in a solution of fluorine salt to bathe. Another type of artificial stone made of cement and sand was used as a putty agent a mixture of hydrofluoric acid, calcium aluminate and soluble silica taken. What differs from this, however, is the peculiar use of hydrofluoric acid for the etching of sand in heat and the cycle process carried out with it, on which the activation of sand for the mortar preparation according to the invention is based. In the former case, at ordinary temperature worked and the glass or unlockable rock powder completely decomposed with sacrifice of the released fluorosilicon. In the second case there is the silicofluoride acid does not have an etching effect, but it is directly caused by the lime of the artificial stone mass bound; a digestion would also be pointless, since precipitated silicic acid hydrate is separated is admitted.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE267681C true DE267681C (en) |
Family
ID=524710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT267681D Active DE267681C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE267681C (en) |
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0
- DE DENDAT267681D patent/DE267681C/de active Active
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