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Class Information
Number: 203/11
Name: Distillation: processes, separatory > Water purification only > Under pressure or vacuum
Description: Processes in which distillation is carried out under a pressure greater than atmospheric or under a vacuum.










Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
4269664 Liquid treating and distillation apparatus May. 26, 1981
4267022 Energy efficient process and apparatus for desalinizing water May. 12, 1981
4265701 Liquid concentration method May. 5, 1981
4261768 Low alloyed steel having improved corrosion behavior, in particular relative to sea water Apr. 14, 1981
4261818 Method for making separations from aqueous solutions Apr. 14, 1981
4260462 Process for separating acid gases and ammonia from dilute aqueous solutions thereof Apr. 7, 1981
4260461 Vapor compression distillation apparatus and method Apr. 7, 1981
4259160 Vapor compression distiller and method Mar. 31, 1981
4248672 Distillation apparatus Feb. 3, 1981
4247371 Precipitating scale-forming compounds from water, and forming fresh water Jan. 27, 1981
4239603 Fuel-efficient generation of ejecting steam Dec. 16, 1980
4236974 Process and apparatus for purifying waste waters Dec. 2, 1980
4235680 Method for desalinating water by preheating and distillation with solar energy Nov. 25, 1980
4235678 Solar powered water desalination system with a regenerative fixture Nov. 25, 1980
4222825 Process and an installation for the treatment of water Sep. 16, 1980
4218290 Hot bed desalination process Aug. 19, 1980
4213830 Method for the transfer of heat Jul. 22, 1980
4211613 Geothermal mineral extraction system Jul. 8, 1980
4211609 Apparatus for desalinating water Jul. 8, 1980
4209364 Process of water recovery and removal Jun. 24, 1980
4204914 Apparatus for desalinating water May. 27, 1980
4203805 Apparatus for desalinating water May. 20, 1980
4203806 Apparatus for desalinating water May. 20, 1980
4200496 Vaporizer for generating developer gas, containing ammonia gas, from aqueous ammonia for developing diazo copying material Apr. 29, 1980
4199407 Apparatus for desalinating water Apr. 22, 1980
4199406 Apparatus for desalinating water Apr. 22, 1980
4186058 Method and apparatus for high volume distillation of liquids Jan. 29, 1980
4186060 Method and apparatus for high volume distillation of liquids Jan. 29, 1980
4176023 Delsalinization and chemical extraction process Nov. 27, 1979
4176012 Adjacent loop distillation Nov. 27, 1979
4172766 Solar energy collectors and plants operated by them Oct. 30, 1979
4167521 Recovery of nitrated compounds using solvent extraction and distillation Sep. 11, 1979
4148693 Horizontal cylindrical distillation apparatus Apr. 10, 1979
4138851 Apparatus and method of geothermal energy conversion Feb. 13, 1979
4132075 Method of producing mechanical energy from geothermal brine Jan. 2, 1979
4121977 Power generation and potable water recovery from salinous water Oct. 24, 1978
4120756 Method for purifying a liquid by pressure distillation Oct. 17, 1978
4118283 Apparatus for desalinating water Oct. 3, 1978
4110174 Power generation and potable water recovery from salinous water Aug. 29, 1978
4105505 Flash evaporators Aug. 8, 1978
4102752 Municipal water supply system Jul. 25, 1978
4096039 Condition sensing control system for desalinator automation Jun. 20, 1978
4091623 Geothermal actuated method of producing fresh water and electric power May. 30, 1978
4077849 Desalination apparatus Mar. 7, 1978
4072579 Power generation and potable water recovery from salinous water Feb. 7, 1978
4066514 Recovery of nitrated compounds from water by distillation Jan. 3, 1978
4059492 Process for the purification of waste from acrylonitrile production Nov. 22, 1977
4054493 Method and apparatus for converting saline water to fresh water Oct. 18, 1977
4046640 Power generation and potable water recovery from salinous water Sep. 6, 1977
4046639 Power generation and potable water recovery from salinous water Sep. 6, 1977

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