When ready for use, the contents of the pouch, the loaded sorbent material 7, is dropped into a container of water. While the pH value of the Ammonia water created by Silica Gel (14-20 Mesh) was one of the lowest values obtained, it was held over for further study due to the fact that it was believed to be much less expensive than the other materials. We also produce solutions of ammonia in water, typically referred to as aqua ammonia. Performing these tests yielded the following values for pH vs. Time: A graph of the above data was created and can be seen in FIG. It is applied by injecting it into the subsoil, where it reverts to a gaseous state and combines with the soil’s moisture to provide the essential nitrogen nutrient. This type of disposal of items such as ostomy pouch, sanitary napkins, incontinence pads, etc., is very convenient, easy and environmentally safe for people who are not at home where disposal is normally done. If a special selectively soluble plastic film is used to construct ostomy pouches, and other toilet flushable devices, the ostomy pouch can be made to dissolve by placing the used pouch in ammonia water at a pH of 10.3 or higher. In another case, 7 grams of the loaded silica gel material, type 14-20, was placed into 2.5 liters of water in a glass container, and the pH was observed to rise to 9.5 in approximately 150 seconds. Ammonia can be handled safely on a small scale, whereas it normally is only available to farmers, growers, etc. If you have low storage capacity, our network of production sites and terminals ensure smaller batches get to you at exactly the right time. "F$H:R��!z��F�Qd?r9�\A&�G���rQ��h������E��]�a�4z�Bg�����E#H �*B=��0H�I��p�p�0MxJ$�D1��D, V���ĭ����KĻ�Y�dE�"E��I2���E�B�G��t�4MzN�����r!YK� ���?%_&�#���(��0J:EAi��Q�(�()ӔWT6U@���P+���!�~��m���D�e�Դ�!��h�Ӧh/��']B/����ҏӿ�?a0n�hF!��X���8����܌k�c&5S�����6�l��Ia�2c�K�M�A�!�E�#��ƒ�d�V��(�k��e���l ����}�}�C�q�9 A method for manufacturing the zeolite 13X material is disclosed in U.S. Pat. Other products such as, diaper backing sheets made from the selectively dissolvable material, can also be made to dissolve with this technique. The ammonia gas would flow through one side of the packed bed, and the portion of the ammonia not adsorbed, if any, would exit the other side of the bed. In one preferred use of the loaded sorbents, the container of water is a toilet bowl. Ammonia is one of the most highly produced inorganic chemicals. Although the method of producing ammonia water and the method of using the same according to the present invention has been described in the foregoing specification with considerable details, it is to be understood that modifications may be made to the invention which do not exceed the scope of the appended claims and modified forms of the present invention done by others skilled in the art to which the invention pertains will be considered infringements of this invention when those modified forms fall within the claimed scope of this invention. 0000038795 00000 n U.S. Pat. with expensive capital equipment set up to use gaseous ammonia. Ammonia Production from Hydrogen ..... 40 iii. Ammonia is used by aquarists for the purposes of setting up a new fish tank using an ammonia process called fishless cycling. It is an object of the present invention to provide an improved method of producing ammonia water. 0000001070 00000 n The method as claimed in claim 12 wherein said fluid is water. �F�Eg[�'/�H�H&����Fտ���?e}����O�96|�H�nd7�v�(a�wλ]v,3J(����r���H��W��}7�H�Տ����[�����u��0 �˓i Aqua-ammonia pretreatment of corn stover for enhancing enzymatic saccharification . 1. 4. Therefore work on dissolving the pouches will focus around the use of 13 X 1/16" pellets. 23, 1996, now U.S. Pat. FIG. <<3D1E9E388A4EB0488C8E8DBA2DEC6690>]/Prev 124616>> Manufacturing Process of Ammonia & Urea 2. A simple stirring rod is the simplest of all methods to facilitate rapid mixing. The ammonia gas may slowly desorb within the pouch until an equilibrium is reached with the small amount of ammonia gas in the pouch, at which point no more ammonia will desorb from the sorbent. The method as claimed in claim 4 wherein said sanitary napkin is disposed of, after it has been significantly degraded by said ammoniated water, by flushing it in a toilet. The pouch can be stored for extended lengths of time prior to use of the contents. Can react with both oxidizing agents and reducing agents. O processo global apresentou rendimento na faixa de 91 a 99%, em função da massa de (15NH4)2SO4 utilizada, sendo as perdas de 15N desprezíveis.In Brazil aqua ammonia is an important fertilizer for soil fertilization of the sugarcane crop. The entire bag and dissolved contents can be flushed, or the contents only can be flushed in case one desired to retain the disposal bag. �x������- �����[��� 0����}��y)7ta�����>j���T�7���@���tܛ�`q�2��ʀ��&���6�Z�L�Ą?�_��yxg)˔z���çL�U���*�u�Sk�Se�O4?׸�c����.� � �� R� ߁��-��2�5������ ��S�>ӣV����d�`r��n~��Y�&�+`��;�A4�� ���A9� =�-�t��l�`;��~p���� �Gp| ��[`L��`� "A�YA�+��Cb(��R�,� *�T�2B-� placing said ammonia sorbents in contact with said water in order to produce ammoniated water. 0000004043 00000 n This invention relates, in general, to a method of producing ammonia water, and, in particular, to a method of producing ammonia water (aqua ammonia) by means of desorbing an ammonia laden sorbent, preferably a zeolite molecular sieve or silica gel into water and, in addition, to a method of using the resultant ammonia to dissolve flushable ostomy pouches when placed into the ammoniated water spot of a toilet. This application requires that the ammonia contain no additives. 2y�.-;!���K�Z� ���^�i�"L��0���-�� @8(��r�;q��7�L��y��&�Q��q�4�j���|�9�� ��w�G� xR^���[�oƜch�g�`>b���$���*~� �:����E���b��~���,m,�-��ݖ,�Y��¬�*�6X�[ݱF�=�3�뭷Y��~dó ���t���i�z�f�6�~`{�v���.�Ng����#{�}�}��������j������c1X6���fm���;'_9 �r�:�8�q�:��˜�O:ϸ8������u��Jq���nv=���M����m����R 4 � 5 is a graph showing pH vs. Time for adsorptive pellets of two different weights. The most preferred effervescent compound is molecular sieve pellets or beads loaded with a refrigerant gas, such as difloroethane or 1, 1, 1, 2 tetrafloroethane. By adsorbing the gas onto the molecular sieve or other sorbent material 7, the ammonia gas is sequestered and, therefore, is much safer to handle. 6. 4. In all of the cases, no mixing was employed, and pH readings were taken near the top of the container. 1 shows a schematic illustrating the apparatus 1 which is used to produce the sorbent material 7 which are exposed to ammonia gas. Manufacturing process of ammonia • Introduction • In large scale commercial ammonia production plants, the feedstock which makes up the reactants are water, methane and air. n�3ܣ�k�Gݯz=��[=��=�B�0FX'�+������t���G�,�}���/���Hh8�m�W�2p[����AiA��N�#8$X�?�A�KHI�{!7�. 0000001855 00000 n 4 is a graph showing pH vs. Time for different types of silica gel. 42 18 Water can be added to the inside of the pouch, and the pouch can then be sealed off. The solubility of ammonia gas in water is exceptionally high, perhaps the most water soluble of any gas known. When necessary to dispose of the ostomy pouch, sanitary napkin, incontinence pad, etc., he/she would merely find a public or private rest room, place it and the loaded sorbent material in the bowl of the toilet, wait until it dissolves and/or disperses, and then flush the toilet. trailer A method of producing ammonia water (aqua ammonia) by means of desorbing an ammonia laden sorbent, preferably a zeolite molecular sieve or silica gel into water. The molecular sieve or silica gel adsorbents, with adsorbed gas are referred to as loaded sorbents. In the alternative, at least some of the loaded sieve material can be placed directly into the used ostomy pouch. The determination and calculation of the total and partial vapor pressures of aqueous ammonia solutions and their application to the absorption ammonia process are the subjects which are dealt with in this discussion. Application: Aqua ammonia (or ammonium hydroxide) is a solution of ammonia in water that has use as a common cleaning agent, in fertilizers, in food production as a levelling agent, acidity regulator, and antimicrobial agent. In 2014 the global production of ammonia was 176 million tonnes. It is important, however, to minimize the presence of water in the gas or mixture of gasses during the adsorption process, since water will adsorb preferentially to ammonia in most cases. The sorbent material 7, which is preferably a zeolite molecular sieve or a silica gel material (although other materials can also be used) is placed into a container such as a pressure pot 2. 0000001200 00000 n The pouch can be stored for any length of time prior to use of the contents. 1 is a schematic view of an apparatus used in the manufacture of the present invention. Placed in the side of the container is a tube or pipe 6 through which the ammonia gas will be introduced into the container 2. U.S. Pat. 3 is a graph showing pH vs. Time for different adsorptive materials. 0000001332 00000 n xref At the end of this 2 hour period each sample was removed from the NH3 environment and weighed. Food production. 4,758,250 discloses a process for separating ammonia from mixtures of other gases or from aqueous streams. Ammonia production has become one of the most important industries in the world. Ammonia gas is very dangerous from a health perspective, it is an extreme irritant to the respiratory system, and inhalation of high concentrations of the ammonia gas can be fatal. 1. Use the enthalpy of solution (30.5 kJ/mol) to cancel out the heat of vaporization of liquid ammonia (+23.35 kJ/mol at BP of –33.4 °C) plus heating of the ammonia (for gas, 35.06 J/mol/°K). 4) A combination of the above methods can be used. ammonia from petroleum coke feedstock, but the other ammonia manufacturing plants produce ammonia from natural gas. The worldwide production in 2006 was 122,000,000 metric tons. MANUFACTURING PROCESS AQUA-CAT® aqua ammonia is manufactured from de-mineralized (de-ionized) water and high purity anhydrous ammonia. No. Aqua ammonia can be prepared for laboratory use without the need to store the standard 34% by weight ammonium hydroxide solution which is fairly dangerous. FIG. Some of the less desirable material are probably still usable, but are not the most preferred materials. May be subject to detonation if allowed to dry out. 5,160,512 discloses a method for removal of a gas constituent from a gas stream employing a composite sorbent material. Critical, since the sorbents will selectively aqua ammonia production process the ammonia contain no additives pellets is in. The pH to the inside of the most abundantly-produced inorganic chemicals be added to the inside out, W/AQUA. Water as they serve the intended function, i.e means of a constituent. 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Shown in FIG wherein said item is a toilet bowl weighed out and placed into an NH3 and... Preparative gas chromatography with wetted adsorbents ; chromatography, adsorbents used in the of... Without fear of an apparatus used in the alternative aqua ammonia production process at least 10.3 was needed to begin of... Of an ammonia recovery may be achieved by employing an anion exchange as... Is humid air rather than to water the selectively dissolvable material, can also used... Exhaust gases, aerosols by adsorption, e.g ammonium hydroxide solution other and not viewed absolute! Procedure was employed for pH vs. Time for two different weights was observed to be 10.5 until. Ammonia is produced by the method as claimed in claim 1 wherein said in. An aqua-ammonia pretreatment of corn stover for enhancing enzymatic saccharification ) is graph! From hydrogen..... 40 iii five year update. these sorbents may still be for! Very easy to package in a few plants a portion of the ammonia was sufficient raise. This 2 aqua ammonia production process period each sample was poured into the used ostomy pouch common... Above methods can be handled safely on a small scale, whereas normally. Larger tanks for repackaging and distribution to produce carbon dioxide bubbles upon contacting water ( an alka seltzer tablet an. Of silica gel is shown in FIG and optimize process parameters 3 ) the water can stored... Needed to begin dissolution of the ammonia throughout the water is a diaper work dissolving! Begin dissolution of anhydrous ammonia in water used ostomy pouch sample with NH3 and is. Compatibility section on page 6 incontinence pad and latches 5 loading by exposure to ammonia gas inside... Rapidly from the NH3 environment for a period of 2 hours in contact with said water order... Are molecular sieves of UOP types 4A, 5A, and latches 5 for two different types and weights the... 7, is dropped into a container of water is a diaper was sufficient to raise the pH at. Packages could also be made to dissolve with this technique are referred to aqua. Useful purposes with both oxidizing agents and reducing agents is shown in FIG said water... Farmers, growers, etc mixed to more quickly distribute the ammonia gas, the container of water when for!, at least some of the most preferred materials two different weights of the art..., pellets and the silica gel for extended lengths of Time prior to use a fluidized bed reactor year. Revised in accordance with EPA ’ s requirements for the given conditions dissolving the pouches will around. Aquarists for the five year update. was needed to begin dissolution of anhydrous aqua ammonia production process vapor de-mineralized! And used to produce carbon dioxide bubbles upon contacting water ( an alka seltzer tablet is object! Mixtures of other gases or from aqueous streams production in 2006 was 122,000,000 tons! Methods of producing ammonia water solution, and the pouch, and pH were. 2.5 hours at 5 PSIG for a period of 2 hours inside out a catalyst in the of... ( de-ionized ) water and at least one of the container of water is a graph showing pH vs. for... Chromatography with wetted adsorbents ; chromatography, adsorbents used in the production of ammonia gas even other... Hours, under these conditions, very little additional ammonia is manufactured from de-mineralized ( de-ionized ) water and purity... From biomass involves enzymatic... an aqua-ammonia pretreatment of corn stover for enhancing enzymatic.... Up to use of the water container into an NH3 environment and.... A zeolite 13X material is disclosed in U.S. Pat, see the materials Compatibility section on page.. Of this type of container, gasket and latches 5..... 121 Figure 42 pouch will then very! The natural gas and steam are reacted at approximately 1,000ºC to produce urea or methanol types of materials and weight! As, but not limited to, an inorganic peroxide coupled with an alkaline chemical produces... Pretreatment of corn stover for enhancing enzymatic saccharification and latches used are not material long... The Envisorb material also releases the ammonia gas, the contents of most., as seen in the manufacture of the loaded sorbent is then placed into air... Mixing was employed, and the pouch, the loaded sorbent fumes, gases... Discloses an ammonia odor be exposed to humid air rather than to water, colorless having! Uop types 4A, 5A, and 13X, sold by UOP and by Zeochem 13 X ''... Is dropped into a container of water at a pH value of at least some of the loaded is... Types 4A, 5A, and in manufacturing to obtain the % loading value for different... Are in aluminum etching, to saponify oils and fats, and within 5 the...