摘要:
Processes comprising: providing a catalyst comprising a catalytic component selected from the group consisting of ruthenium, ruthenium compounds, and combinations thereof, wherein the catalyst is sulfur-poisoned with one or more sulfur compounds; and treating the catalyst with a gas stream comprising a hydrogen halide under nonoxidative conditions such that the catalyst is regenerated.
摘要:
The present invention relates to a process for the preparation of chlorine by gas phase oxidation using a supported catalyst based on ruthenium, characterised in that the catalyst support has a plurality of pores having a pore diameter>50 nm and carries nanoparticles containing ruthenium and/or ruthenium compounds as catalytically active components.
摘要:
The present invention relates to a process for mobilizing metallic ruthenium or ruthenium compounds from solids to form volatile ruthenium compounds by means of a gas stream containing a hydrogen halide and carbon monoxide, preferably hydrogen chloride and carbon monoxide, and for isolating the previously mobilized ruthenium compounds, preferably by deposition with cooling, e.g. in relatively cold zones, in particular on relatively cold surfaces, absorption in suitable solutions or adsorption on suitable support materials.
摘要:
Processes comprising: providing a catalyst comprising a catalytic component selected from the group consisting of ruthenium, ruthenium compounds, and combinations thereof, wherein the catalyst is sulfur-poisoned with one or more sulfur compounds; and treating the catalyst with a gas stream comprising a hydrogen halide under nonoxidative conditions such that the catalyst is regenerated.
摘要:
There is disclosed a skincare composition suitable for topical application to the skin. The composition comprises alicylic acid or a salt thereof and hydrolysed milk protein. The composition is useful in the treatments of acne.
摘要:
There is disclosed a cleansing and moisturising composition for topical application to the skin. The composition comprises salicylic acid as active ingredient, and has the form of an emulsion comprising 70-95% by weight of an aqueous phase and 5-30% by weight of an oil phase, the salicylic acid being dissolved in the oil phase, and the composition comprising one or more moisturising agents. The composition may be incorporated into a wipe substrate for ease of application to the skin. The compositions have the combined effects of cleansing and moisturising the skin and may be used in the prophylactic or remedial treatment of acne.
摘要:
A process for the production of chlorine by thermo-catalytic gas phase oxidation of hydrogen chloride and oxygen is described, the process comprising at least (1) a cerium oxide catalyst and (2) an adiabatic reaction cascade, containing at least two adiabatic stages connected in series with intermediate cooling, wherein the molar O2/HCl-ratio is equal or above 0.75 in any part of the cerium oxide catalyst beds.
摘要:
There is disclosed a skincare composition suitable for topical application to the skin. The composition comprises from 0.5 to 10% by weight of salicylic acid and from 0.5 to 10% of hydrogen peroxide, but is substantially free of other therapeutic agents selected from the group consisting of anti-microbial agents, anti-bacterial agents, anti-viral agents, anti-fungal agents, anthelmintic agents and anti-inflammatory agents. The composition is useful in the treatment of acne.
摘要:
There is disclosed a skincare composition suitable for topical application to the skin. The composition comprises salicylic acid or a salt thereof and hydrolysed milk protein. The composition is useful in the treatment of acne.