DE674516C - Process for the production of a water-soluble, solid mixture of alkali silicates and alkali acetates - Google Patents

Process for the production of a water-soluble, solid mixture of alkali silicates and alkali acetates

Info

Publication number
DE674516C
DE674516C DEW94501D DEW0094501D DE674516C DE 674516 C DE674516 C DE 674516C DE W94501 D DEW94501 D DE W94501D DE W0094501 D DEW0094501 D DE W0094501D DE 674516 C DE674516 C DE 674516C
Authority
DE
Germany
Prior art keywords
alkali
water
soluble
acetates
production
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.)
Expired
Application number
DEW94501D
Other languages
German (de)
Inventor
Dr Hans Scheidemandel
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.)
Wacker Chemie AG
Original Assignee
Wacker Chemie AG
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 Wacker Chemie AG filed Critical Wacker Chemie AG
Priority to DEW94501D priority Critical patent/DE674516C/en
Application granted granted Critical
Publication of DE674516C publication Critical patent/DE674516C/en
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/20—Silicates
    • C01B33/32—Alkali metal silicates
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C53/00—Saturated compounds having only one carboxyl group bound to an acyclic carbon atom or hydrogen
    • C07C53/08—Acetic acid
    • C07C53/10—Salts thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)

Description

Verfahren zur Herstellung eines wasserlöslichen, festen Gemisches von Alkalisilicaten und Alkaliacetaten Mischungen von festen Alkalisilicaten, die alkaliärmer als Metasilicate sind, mit festen Alkaliacetaten können durch Mischen der einzelnen festen Bestandteile hergestellt werden. Es ist dabei notwendig, daß die festen Alkaliacetate in einem gesonderten Verfahren gewonnen werden und sie dann mit den festen Alkalisilicaten vermischt werden. Die Gemische lösen sich ungleichmäßig in Wasser, da sich von den beiden Bestandteilen Alkaliacetate erheblich schneller lösen.Process for the preparation of a water-soluble, solid mixture of alkali silicates and alkali acetates Mixtures of solid alkali silicates, the Are lower in alkali than metasilicates, with solid alkali acetates can be obtained by mixing of the individual solid components are produced. It is necessary that the solid alkali acetates are obtained in a separate process and they then mixed with the solid alkali silicates. The mixtures dissolve unevenly in water, since alkali acetates differ considerably more quickly from the two components to solve.

Es wurde nun gefunden, daß besonders gleichmäßige und innige, wasserlösliche, feste Gemische von Alkalisilicaten und Alkaliacetaten ohne von festen Alkalisalzen ausgehen zu müssen und ohne Anwendung besonderer Mischvorrichtungen gewonnen werden können, wenn man eine wäßrige Lösung von AlkalLmetasilicat mit Essigsäure bis zur beginnenden Ausscheidung von Kieselsäure versetzt und dann das Reaktionsprodukt bis zum Erhalt eines festen Produktes eindampft. überraschenderweise kann man dabei einen erheblichen Betrag an Essigsäure zusetzen, bis bleibende Ausscheidungen von Kieselsäure auftreten. Bei entsprechender Bemessung des Säurezusatzes kann man einen nach dem Ein, dampfen praktisch neutralen, wasserlöslichen Rückstand erhalten.It has now been found that particularly uniform and intimate, water-soluble, solid mixtures of alkali silicates and alkali acetates without solid alkali salts have to go out and be obtained without the use of special mixing devices can, if an aqueous solution of alkali metal metasilicate with acetic acid up to incipient precipitation of silica added and then the reaction product evaporated until a solid product is obtained. Surprisingly you can do it add a significant amount of acetic acid until permanent excretions of Silica occur. With an appropriate dimensioning of the acid addition one can use one after evaporation, a practically neutral, water-soluble residue is obtained.

Die gemäß der Erfindung erhaltenen Salzgemische stellen in Form wäßriger Lösungen ein wirksames Reinigungsmittel z. B. für Metalle, Textilien usw. dar.The salt mixtures obtained according to the invention are in the form of aqueous ones Solutions an effective detergent e.g. B. for metals, textiles, etc.

Beispiel Zu 2,81 Silicatlösung, welche r4oo g Natriummetasilicat (wasserfrei) enthält, läßt man unter Rühren in der" Wärme bei etwa 6o° C bis zur bleibenden Trübung Eisessig zutropfen, wofür etwa 700 ccm erforderlich sind. Von Eisessig gibt man zweckmäßig etwa das letzte Drittel mit Wasser verdünnt zu. Nach dem Eindampfen der Flüssigkeit bleibt ein leicht mahlbarer Rückstand, der aus einer wasserhaltigen Mischung von etwa q.4o,'o Natriumacetat und 56% Natriumsilicat besteht und in Wasser leicht löslich ist.EXAMPLE Glacial acetic acid is added dropwise to 2.81 silicate solution, which contains 400 g of sodium metasilicate (anhydrous), while stirring in the heat at about 60 ° C. until it remains cloudy, for which about 700 cc is required The last third is diluted with water. After evaporation of the liquid, an easily grindable residue remains, which consists of a water-containing mixture of about 40% sodium acetate and 56% sodium silicate and is easily soluble in water.

Claims (1)

l'A'LLzNTÄN5`PftÜCIt: Verfahren zur Herstellung eines wasserlöslichen, festen Gemisches von Alkalisilicaten und Alkaliacetaten, dadurch gekennzeichnet, daß man eine wäßrige Lösung von Alkalimetasilicat mit Essigsäure bis zur beginnenden Ausscheidung von Kieselsäure versetzt und dann das Reaktionsprodukt bis zum Erhalt eines festen Produktes eindampft.l'A'LLzNTÄN5`PftÜCIt: Process for the production of a water-soluble, solid mixture of alkali silicates and alkali acetates, characterized in that that an aqueous solution of alkali metasilicate with acetic acid to the beginning Precipitation of silica added and then the reaction product until obtained of a solid product evaporates.
DEW94501D 1934-06-17 1934-06-17 Process for the production of a water-soluble, solid mixture of alkali silicates and alkali acetates Expired DE674516C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEW94501D DE674516C (en) 1934-06-17 1934-06-17 Process for the production of a water-soluble, solid mixture of alkali silicates and alkali acetates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW94501D DE674516C (en) 1934-06-17 1934-06-17 Process for the production of a water-soluble, solid mixture of alkali silicates and alkali acetates

Publications (1)

Publication Number Publication Date
DE674516C true DE674516C (en) 1939-04-15

Family

ID=7614126

Family Applications (1)

Application Number Title Priority Date Filing Date
DEW94501D Expired DE674516C (en) 1934-06-17 1934-06-17 Process for the production of a water-soluble, solid mixture of alkali silicates and alkali acetates

Country Status (1)

Country Link
DE (1) DE674516C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0004112A2 (en) * 1978-03-13 1979-09-19 THE PROCTER & GAMBLE COMPANY Modified silicates

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0004112A2 (en) * 1978-03-13 1979-09-19 THE PROCTER & GAMBLE COMPANY Modified silicates
EP0004112A3 (en) * 1978-03-13 1979-10-31 The Procter & Gamble Company Modified silicates and detergent compositions containing them

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