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Klaus Wintermantel Patents |
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Inventor: Wintermantel; Klaus
Address: Weinheim, DE
No. of patents: 4
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 4795571 |
Purification of frozen crystal layers |
January 3, 1989 |
| Frozen crystal layers are purified by a process in which these crystal layers, after they have been frozen out from a melt or solution on a cooling surface, are brought into contact with a purifying liquid and thus purified over their entire thickness, after which the said layers are |
| 4493719 |
Method of separation by fractional crystallization from a liquid mixture |
January 15, 1985 |
| A method of separation by fractional crystallization from a liquid mixture in which the liquid mixture is repeatedly passed in turbulent flow through an indirectly cooled crystallization zone, which must be kept full. The liquid remaining after deposition of a layer of crystals on the wa |
| 4369327 |
Preparation of phthalic anhydride |
January 18, 1983 |
| A process for the preparation of phthalic anhydride (PA) of catalytic oxidation of naphthalene or o-xylene with air, a preheated mixture of air and naphthalene or o-xylene being passed into a reactor charged with the catalyst, and the reaction gas leaving the reactor being passed through |
| 4212725 |
Electrodes for electrolysis purposes |
July 15, 1980 |
| An electrode for electrolysis purposes, which may in particular be used as an anode for the electrolysis of alkali metal chlorides, contains, in addition to an alloy of niobium with a metal of the iron group, tantalum, tantalum carbide or an alloy of tantalum with metals of the iron grou |
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