Liquid purification or separation – Processes – Using magnetic force
Patent
1992-04-03
1994-11-15
Savage, Matthew O.
Liquid purification or separation
Processes
Using magnetic force
210222, C02F 148
Patent
active
053645367
DESCRIPTION:
BRIEF SUMMARY
The present invention has for its object a process for the magnetic treatment of a fluid, to devices for carrying out this process and to certain fluids treated by this process and/or these devices.
In the present Patent Application, "fluid" will designate any physical form of products capable of flow, which covers liquids and gases, but also super-critical fluids as well as products in intermediate states such as hardly viscous pastes, creams, products in the vitreous state, pulverulent products or mixed products such as solid pulverulent particles in suspension in a gas or a liquid (fluidized bed for example) and in general all products presenting one or more phases but of which the overall behaviour is a behaviour of the fluid type in the conventional sense of the term, i.e. capable of flowing by any usual means such as gravity or a difference in pressure without if being absolutely necessary to employ an additional means of propulsion. Virtually, the invention is essentially applied to any fluid, in the sense which has just been defined, which, in the course of a natural or possibly forced flow circulation, makes it possible to create a relative movement between solid elements, fixed or not, and the constituents of the fluid, in particular the particles which constitute it or which it conveys. More precisely, the invention is based on the fact that the constituents of one or more fluids, still in the sense which has just been defined, are capable of circulating in relative manner in magnetic fields created by permanent magnets or by means creating by induction or by any other adequate means magnetic fields, such as for example electromagnets.
It is known in the prior art that very diverse products are modified by certain magnetic fields, whether it is question of electrically charged products, such as ionized solutions, or products which are relatively neutral electrically, such as micro-organisms in a fluid medium, organic or not. Among the innumerable varieties of actions exerted, it is well known that the magnetic fields act on the electrically non-neutral particles and consequently on the electric currents. This is the very base of the principles evidenced by Ampere and which are employed in very numerous apparatus and very numerous machines and in particular in electrical rotating machines. It is also known that such fields act on the fluid media in the sense which has been defined hereinabove. Generally, magnetic or electric, even electrostatic fields are used to modify or induce charges and to create deviations, separations, decantations, modifications and other physical, mechanical or even biological phenomena.
Concerning more particularly certain neutral bodies, such as micro-organisms or certain molecules, for the most part of biological origin, the electromagnetic fields may modify them, which is the basis of very numerous techniques, such as liquid crystals, or of biotechnology techniques and making it possible, for example, to render inactive certain micro-organisms. It is also known in the prior art that the magnetic fields may exert an action on solutions, in particular by mobilizing the ions that they contain; this principle has already been used in devices for protecting networks for distributing water under pressure for domestic use.
The present invention has for its object to extend the domain of application of these principles of magnetic treatment of fluids in order to eliminate the detrimental properties of fluids in general and in particular of water and of air which are the most current examples, for example by tending to cancel the noxious effects of the compounds that they may convey in the state of solution, of suspension or the like, as well as the micro-organisms that they may transport. This may concern phenomena as diverse as scaling by the mineral salts in solution in the water which tend to be deposited and even to be incrusted, up to the micro-organisms in the water-distribution or air-conditioning installations which may propagate certain disorders in particular in th
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patent: 4343707 (1982-08-01), Lucas
patent: 4999106 (1991-03-01), Schindler
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