DE649054C - Procedure for quality control of soot - Google Patents

Procedure for quality control of soot

Info

Publication number
DE649054C
DE649054C DES114857D DES0114857D DE649054C DE 649054 C DE649054 C DE 649054C DE S114857 D DES114857 D DE S114857D DE S0114857 D DES0114857 D DE S0114857D DE 649054 C DE649054 C DE 649054C
Authority
DE
Germany
Prior art keywords
soot
carbon black
procedure
quality control
loss
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
DES114857D
Other languages
German (de)
Inventor
Dr Georg Keinath
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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens 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 Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Priority to DES114857D priority Critical patent/DE649054C/en
Application granted granted Critical
Publication of DE649054C publication Critical patent/DE649054C/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/22Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
    • G01N27/223Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance for determining moisture content, e.g. humidity

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Description

Verfahren zur Qualitätsprüfung von Ruß In der Technik wird Ruß z. B. in der Gummifabrikation in großem Umfange verwendet. Dabei hat es sich herausgestellt, daß Rußsiorten bestimmter Herkunft besonders brauchbar sind, während Rußsorten anderer Herkunft sich als minderwertig erwiesen, .obwohl mit keiner der zahlreichen versuchten physikalischen ioder auch chemischen Untersuchungsmethoden ein deutlicher Unterschied zwischen den Rußsiorten festgestellt werden konnte. Man war demgemäß darauf angeniesen, jede Bußsorte vor ihrer laufenden Verwendung zunächst einmal einer praktischen Erprobung zu unterziehen, die erhebliche Zeit in Anspruch nahm.Method for quality inspection of carbon black In technology, carbon black is z. B. used in rubber production on a large scale. It turned out that soot types of certain origins are particularly useful, while soot types of others Origin proved to be inferior, although none of the numerous tried physical or chemical methods of investigation make a clear difference could be determined between the soot types. One was accordingly fed up with Each type of penance is first of all a practical test before it is used to undergo which took considerable time.

Erfindungsgemäß läßt sich die Brauchbarkeit von Ruß in einfacher und keinen wesentlichen Zeitaufwand beanspruchender Weise dadurch feststellen, daß ,der Ruß mit einem isolierenden Stoff, zweckmäßig einer isolierenden Flüssigkeit, fein vermischt und der Verlustwinkel des so entstandenen Gemisches gemessen wird. Es hat sich nämlich gezeigt, daß bei der Anwendung dieser Methode scheinbar gleiche Bußsorten stark voneinander abweichende Verlustwinkel aufweisen, obwohl mit den bisher versuchten Prüfmethoden ein Unterschied zwischen diesen Bußsorten nicht festgestellt werden konnte, und es hat sich weiter gezeigt, daß die praktische Brauchbarkeit solcher Bußsorten übereinstimmte, die den gleichen Verlustwinkel ergaben. _ Das Verfahren gemäß der Erfindung kann seiner Art nach nur als Vergleichsmessung benutzt werden. Man muß demnach bei seiner Anwendung in der Weise vorgehen, daß zunächst einmal eine Rußsorte, deren Brauchbarkeit durch die Praxis erwiesen, ist, mit einem Hilfsstoff, z. B. Öl, in einem festgelegten Verhältnis gemischt und der Verlustwinkel dieses Gemisches bestimmt wird. Wenn andere Rußsiorten, die demselben Verwendungszweck dienen sollen, geprüft werden sollen, dann brauchen lediglich diese Bußsorten mit demselben Hilfsstoff in demselben Mischungsverhältnis gemischt und auf ihren Verlustwinkel gemessen zu werden. Stimmt dieser Verlustwinkel mit dem für den als b#-,auchbar bekannten Ruß gefundenen Verlustwinkel überein bzw. liegt er ihm sehr nahe, dann kann man im allgemeinen den Schluß ziehen, daß die neue Bußsorte für den Verwendungszweck ebenso brauchbar wie die bekannte Bußsorte sein wird. Unter Umständen. wird ges sogar möglich sein, Kurven für den Verlustwinkel z. B. in Abhängigkeit von der Temperatur aufzustellen, aus denen man die Brauchbarkeit in Abhängigkeit von dem gemessenen Verlustwinkel ohne weiteres entnehmen kann.According to the invention, the usefulness of carbon black can be easily and do not determine a substantial expenditure of time by the fact that, the Soot with an insulating substance, expediently an insulating liquid, fine mixed and the loss angle of the resulting mixture is measured. It it has been shown that when this method is used, apparently the same Types of penance have widely differing loss angles, although with the Test methods tried so far failed to establish a difference between these types of penance could be, and it has been further shown that the practical usefulness those types of penance that gave the same angle of loss. _ That The type of method according to the invention can only be used as a comparative measurement will. One must therefore proceed in such a way in its application that first once a type of carbon black, the usefulness of which has been proven through practice, with one Auxiliary, e.g. B. Oil, mixed in a fixed ratio and the loss angle this mixture is determined. If other types of carbon black are used for the same purpose should serve, should be examined, then only these types of penance need to be included the same excipient mixed in the same mixing ratio and their loss angle to be measured. If this loss angle agrees with that for the as b # -, also possible known soot, or if it is very close to it, then one can generally draw the conclusion that the new type of penance for the intended purpose just as useful as the well-known type of penance will be. In certain circumstances. is sat even be possible to use curves for the loss angle z. B. depending on the temperature set up from which one can determine the usefulness depending on the measured Loss angle can easily be found.

Es liegt nahe, daß das erfindungsgemäße Verfahren, dessen Brauchbarkeit zunächst nur für Ruß erprobt wurde, sich sinngemäß auch auf die Prüfung anderer fein verteilter fester Stoffe anwenden läßt.It is obvious that the method according to the invention, its usefulness was initially only tested for soot, analogously to the testing of others can use finely divided solid substances.

Claims (1)

PATENTANSPRUCH: Verfahren zur Qualitätsprüfung von Ruß, dadurch gek@enrizeichnet, daß der Ruß .mit einem Hilfsstoff von stark abweichender elektrischer Leitfähigkeit, z«-eckmäl3ig einem isolierenden Öl, in einem bestimmten Verhältnis gemischt, der Verlustwiftkel dieses Gemisches bestimmt und mit dem Verlustwinkel eines gleichprozentigen Gemisches aus einer als brauchbar erprobten Rußsorte und dem gleichen Hilfsstoff verglichen wird.PATENT CLAIM: Process for quality testing of carbon black, thereby marked @enrizeichnet, that the soot. with an additive of greatly differing electrical conductivity, an insulating oil, mixed in a certain proportion, which Loss wiftkel of this mixture is determined and with the loss angle an equal percentage Mixture of a type of carbon black that has been tried and tested as useful and the same auxiliary is compared.
DES114857D 1934-07-26 1934-07-26 Procedure for quality control of soot Expired DE649054C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES114857D DE649054C (en) 1934-07-26 1934-07-26 Procedure for quality control of soot

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES114857D DE649054C (en) 1934-07-26 1934-07-26 Procedure for quality control of soot

Publications (1)

Publication Number Publication Date
DE649054C true DE649054C (en) 1937-08-14

Family

ID=7533390

Family Applications (1)

Application Number Title Priority Date Filing Date
DES114857D Expired DE649054C (en) 1934-07-26 1934-07-26 Procedure for quality control of soot

Country Status (1)

Country Link
DE (1) DE649054C (en)

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