1
Hans Guth, Hans Joachim Kaiser, Klaus Kleine Weischede, Hermann Wieschen, Hans L Kuhnlein: Concentration and separation of corrosive liquid mixtures. HCH Bertrams Aktiengesellschaft, Bayer Aktiengesellschaft, Burgess Dinklage & Sprung, March 29, 1977: US04014735 (13 worldwide citation)

In the processing of a corrosive liquid mixture, such as 50 to 80% aqueous sulfuric acid, by its passage over one surface of a wall of inert heat resistant material, and heating the other surface of said wall, thereby to evaporate from said corrosive liquid mixture the more volatile component thereo ...


2
Bruno Degen, Kurt Feldner, Hans Joachim Kaiser, Manfred Schulze: Process for the preparation of alkylhalogenosilanes. Bayer Aktiengesellschaft, Sprung Horn Kramer & Woods, October 22, 1991: US05059706 (11 worldwide citation)

A process for the preparation of alkylhalogenosilanes by reaction of silicon with an alkyl halide in the presence of a copper catalyst and promoter substances, the improvement wherein gaseous phosphorus compounds are admixed, as promotor substances, with the stream of alkyl halide.


3
Hans Guth, Hans Joachim Kaiser, Klaus Kleine Weischede, Hermann Wieschen, Hans L Kuhnlein: Separation of corrosive liquid mixtures. HCH Bertrams Aktiengesellschaft, Bayer Aktiengesellschaft, Burgess Dinklage & Sprung, January 20, 1976: US03933575 (9 worldwide citation)

In the processing of a corrosive liquid mixture, such as 50 to 80% aqueous sulfuric acid, by its passage over one surface of a wall of inert heat resistant material, and heating the other surface of said wall, thereby to evaporate from said corrosive liquid mixture the more volatile component thereo ...


4
Hans Guth, Gerhard Jonas, Klaus Kleine Weischede, Hermann Wieschen, Hans Joachim Kaiser, Karl Heinz Dorr, Hugo Grimm: Process for dehydrating gas with sulfuric acid. Bayer Aktiengesellschaft, Metallgesellschaft Aktiengesellschaft, Burgess Dinklage & Sprung, May 17, 1977: US04023938 (9 worldwide citation)

In the removal of water from a gas by contact with sulfuric acid, the improvement which comprises supplying the sulfuric acid in finely divided form having a surface of about 10.sup.4 to 10.sup.7 m.sup.2 /h at a concentration of about 95 to 99% and a temperature of about 35.degree. to 80.degree. C a ...