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Featured researches published by Karl Brandle.


Studies in Inorganic Chemistry | 1984

Sulfuric Acid — An Important Basic Product in Chemistry. Problems and Recent Developments in Production

Karl Brandle

Abstract The large increase in the production of sulfuric acid and its function as an auxiliary in chemical reactions has raised a number of problems which had to be solved. Four main subjects are dealt with in this article: (1) Reduction of emissions: The emissions of SO 2 could be reduced substantially by introduction of the double contact process develeoped by the BAYER AG. The principle of the process is decribed. (2) Raw materials: There is a world-wide tendency towards the use of elementary sulfur. The resulting technical consequences are discussed. (3) Energy recovery: During the manufacture of sulfuric acid large quantities of heat are produced. Regarding the present energy situation the recovery of this energy is an important necessity. The heat from the formation of SO 2 and from the reaction from SO 2 to SO 3 is recovered to a large extent and is converted to high pressure steam. Presently, large efforts are made in order to use also the heat from the reaction with water. A number of technical possibilities together with some material problems are discussed. (4) Recycling of spent acids and by-products: The re-use or recycling of spent acids plays an increasing role. Technical solutions are possible for the recovery of spent acids with organic as well as inorganic load by concentration and cleavage processes.


Archive | 1975

Production of foamed gypsum moldings

Martin Muller; Friedrich Dipl Ing Hinsche; Gerhard Winter; Karl Brandle


Archive | 1964

Process for carrying out gas phase reactions

Hans Zirngibl; Karl Brandle; Peter Beumer; Walter Weidmann


Archive | 1984

Process for reprocessing sulphuric acids containing metal sulphate

Günter Dr. Lailach; Rudolf Gerken; Wolfgang-Dieter Muller; Karl Brandle


Archive | 1975

Production of porous gypsum moldings

Hans Dr Kyri; Karl Brandle; Martin Muller; Heinrich Heine


Archive | 1967

PROCESS AND APPARATUS FOR DIRECT ELECTRICAL HEATING OF GASEOUS SUBSTANCES

Hans Zirngibl; Karl Brandle; Karl Engel; Walter Weidmann; Peter Beumer


Archive | 1982

Preparation of polydiorganosiloxanes having terminal triorganosilyl groups

Gunther Maass; Hans Joachim Lucking; Karl Brandle; Hans-Heinrich Moretto


Archive | 1991

Process for the production of oleum and sulfuric acid

Karl Brandle; Kurt-Wilhelm Eichenhofer; Klaus Geisler; Günter Pütz; Klaus-P. Grabowski


Archive | 1976

Production of low-sulfur chromium (iii) oxide pigment

Manfred Mansmann; Karl Brandle


Archive | 1971

PRODUCTION OF CHROMIUM (III) OXIDE OF LOW SULFUR CONTENT

Karl Brandle; Claus-Heinrich Elstermann; Volker Hahnkamm; German Broja

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