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Method for preparation of chemical raw materials by using of potassium-containing shale

The invention discloses a method for preparation of chemical raw materials by using of potassium-containing shale, and the method comprises the following steps: first, mixing potassium-containing shale powder and hydrochloric acid in a reaction kettle for pretreatment, filtrating to get a hydrochloride solution and a shale acidification body, then performing catalytic decomposition of the shale acidification body to obtain an aluminum salt, an iron salt and a potassium salt; reacting the hydrochloride solution with calcium hydroxide for an acid-base reaction, adjusting the pH value to 7 - 9, performing secondary filtering of the reactants to obtain a filtrate cake and a filtrate, drying the filtrate to obtain calcium chloride hexahydrate and calcium chloride dihydrate; mixing the filter cake with sulfuric acid for dissolution, slowly adding a sodium carbonate solution, adjusting the pH value, and then adding a polymerizer to the solution for reaction to prepare polymeric aluminum sulfate and polymeric ferric sulphate. The method can solve the problem of impurities taken in by the potassium-containing shale as a raw material for the production of the chemical raw materials, and can prepare useless calcium element into a calcium chloride product, and meanwhile can produce the chemical raw materials of the polymeric aluminum sulfate and the polymeric ferric sulphate, lower the production costs and improve the economic efficiency.
Owner:QINGDAO XINGHUO CHEM TECH

Anoscope

ActiveUS20180125350A1Avoids arousalAvoid needCannulasEndoscopesOral mucosaAnus
An anoscope comprises a graspable portion, arranged for being grasped by an operator, and a body, arranged for being inserted into the terminal tract of the rectum of a patient. A cavity and at least one operating window are made in the body of the anoscope. The anoscope further comprises a housing and a seat, which are comprised in the cavity of the body. The housing is arranged for containing at least one surgical instrument suitable for treating hemorrhoids and the seat is arranged for containing at least one lighting device. A method for treating a hemorrhoid in a patient comprises the following steps: a) Inserting an anoscope into the terminal tract of the rectum of the patient through the anal opening; b) Positioning the body of the anoscope in such a way that an operating window or opening of the anoscope is near a zone of rectal mucosa to be treated, positioned near the hemorrhoids; c) Positioning a surgical instrument suitable for treating hemorrhoids inside the body of the anoscope so as to reach the operating window or opening and, through the operating window or opening, reaching the zone of rectal mucosa to be treated; d) Producing a localized heat in the submucosa of the zone of rectal mucosa to be treated through the surgical instrument, such localized heat being a heat that is limited to the zone of rectal mucosa to be treated; e) Inducing a volume reduction of the hemorrhoid as a result of the localized heat produced.
Owner:SIAS

Recirculating Anesthetic Cooling Apparatus and Method

InactiveUS20190209367A1Cooling effect can reduce and inhibit nerve conductionAvoid needTherapeutic coolingTherapeutic heatingInner loopBiological tissue
Various embodiments of the present disclosure provide a device for cooling tissue comprising a tube having an inlet end and an outlet end opposite the inlet end and an interior traversing the length of the tube, the interior being a passageway for cooling fluid to circulate within the interior; wherein the tube is shaped to a contour of biological tissue of a patient. Other embodiments provide a method for cooling tissue comprising applying a tubular contact cooler to a patient's tissue configured to circulate a cooling fluid through the interior of the contact cooler; wherein the cooling fluid's temperature is below 14° Celsius and the contact cooler is shaped to a contour of tissue. Other embodiment provide a recirculating anesthetic cooling system for numbing a patient's intra-oral tissues comprising a contact cooler comprising a contact cooler inlet, a contact cooler outlet, a buccal portion, and a lingual portion, a fluid cooler comprising a fluid cooler outlet connected to the contact cooler inlet and a fluid cooler inlet connected to the contact cooler outlet, and a cooling fluid disposed throughout the contact cooler and the fluid cooler; wherein the cooling fluid is circulated from the contact cooler to the fluid cooler and the fluid cooler reduces the cooling fluid's temperature to a desired temperature.
Owner:GOMEZ JENNIFER PILBY
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