Translation of "Tiefkühlung" in English

The superconducting state is achieved by means of refrigeration using liquid nitrogen.

An essential phase for maintaining untouched the quality of a product is freezing.

It is suitable for the illumination of cold rooms for refrigeration and deep freezing.

The pack controller is used in compressor pack controllers with normal and low temperature refrigeration.

In the demethanizer, dissolved methane and dissolved hydrogen are stripped out of the condensates of the low temperature cooling.

In addition, parts of the solvent residues can be removed from the gaseous product stream by this deep cooling.

Also, XFELs can investigate biomolecules at room temperature, avoiding the deep-freezing often used in conventional investigations.

The application of CO2 (R 744) has especially proved itself in the refrigeration.

The container will reveal a secret message about the arrival of a certain season if deep-frozen.

One of the problems surrounding the use of freezing as a method of food preservation is the danger that pathogens deactivated (but not killed) by the process will once again become active when the frozen food thaws.

Before the beginning of the study, information on the proper method of storage for the particular test substance — for example, deep-freezing, holding at 4 0C, duration of storage, extraction, etc. are obtained.

As knowledge of the causes of food deterioration improved, new methods of preservation were introduced: thermal sterilization (Papin and Appert, 1810), dry ing of meat (Liebig and von Pattenkoper, 1850), evaporation of milk (Borden, 1856), cooling with cold air and cold brine, freezing at the beginning of this century, etc. and the development of chemical preservatives, some of which, as we shall see, had already been used for several centuries.

However, a qualitative consideration of techniques such as canning and freezing would suggest that these must be considerable.

Most of the catalysts described heretofore are scarcely suitable for use in the commercial production of styrene as they are required to be used together with an inert diluent, such as helium or nitrogen which in turn has to be circulated with heavy expenditure of energy, or it is necessary for the inert gases to be subjected to low cooling or scrubbing treatment whereby the recovery of styrene is naturally rendered very difficult.

Troublesome and expensive separation operations, such as, for example, deep-freezing of the hydrogen chloride gas and fractional distillation of the organic products, are required to separate off these substances from the escaping hydrogen chloride.

It is therefore merely necessary to maintain the external magnetic field during cooling of the material below the critical temperature and of the temperature indicator described and then to remove said magnetic field (8) after the temperature has fallen below the critical temperature.

A cooling tower forming a cooling compartment can follow the baking oven, if a cooling of the baking goods (for example by blowing with cool air) or, if desired, even an intensive cooling, for example a deep cooling, is required before the baking goods are packed.

Grinding can be carried out with customary milling units, for example, with disk impact mills, pin mills or airjet mills, and the material to be milled can be frozen if necessary.

With dropping temperatures in deep-cooling and C1/C2 separation 27, the product purities of methane and hydrogen are enhanced.

The unit doses can be combined in sets of, for instance, 5, 10, or more unit doses. If desired, data usable for the test procedure can be provided. They can be introduced into commerce while the deep chilling is maintained.

To obtain ethylene, the C2- stream 8 is sent from C2/C3 separation 7 Through C2 hydrogenation 26, through deep-cooling and C1/C2 separation 27, through C2 separation 28, and through an ethylene circuit 29. Thus, an ethylene product 30 is obtained.