Abstract: A container with pre-guided alignment function has a container body, a cover, an engaging portion and a plurality of locking parts in the type of pre-guided alignment. The engaging parts are configured on the relative positions on the flaring rim of the container main body and the periphery of the cover in a male/female matching relationship. Said engaging parts include two locking parts and at least one long-type guided alignment part, wherein the locking parts can align to and be engaged with each other, so that the periphery of the cover can cover the flaring rim of the container body tightly. The container is set by the long guided alignment part of edge part of locking parts. The edge of the locking parts will use the long guided alignment part as alignment point.

Abstract: A container structure with opening identification functions has a container body, limit ring flange, cover body, engaging flange and a concealed prebreaking portion. The prebreaking portion must be set onto the container body but also located at a preset position inside the limit ring flange. When the cover body is covered onto the container body, the outer edge of the cover body is extended to conceal the prebreaking portion. Because the prebreaking portion is concealed by the cover body, when the consumers intend to take or carry the container body, or open or close the cover body, it is possible to avoid discomfort or accidental injury arising from contact with the broken position of the prebreaking portion. Further, ill-disposed individuals cannot easily open the cover body and insert foreign or harmful substances, thus ensuring the quality and safety of products in the container body.

Abstract: An anti-tamper container for preventing incorrect opening includes a box body, an abutting flanged portion, a cover and at least one opening preventing device. When a force is applied to the cover to rotarily open it upwards, the front inclined surface of the tilting extension sheet presses the pre-dislocated rib to disengage it from the box body so as to prevent reconnection. Thus, the consumers could easily recognize if the cover has been incorrectly opened so as to ensure the quality and safety of the products while avoiding consumption disputes, and safeguarding the rights of consumers and reputation of industry operators with improved applicability. Because a strengthened opening preventing portion is set on the tilting extension sheet, the tilting extension sheet could be prevented from penetrating upwards without breaking the pre-dislocated rib.

Abstract: Provided is a method for manufacturing hydroxylamine. In this method, an aqueous reaction medium containing acidic buffer agent and nitrate ions in the presence of a limited amount of metal impurities such as Fe or Cu is introduced into a hydroxylamine synthesis reactor in the presence of catalyst to proceed hydroxylamine synthesis by reduction of nitrate ions with hydrogen gas as reducing agent in the aqueous reaction medium to produce hydroxylamine. The reaction is processed in the aqueous reaction medium with a limited amount of metal impurities or even without metal impurities, such that the selection rate of the hydroxylamine product is increased.

Abstract: Provided is a method for manufacturing hydroxylamine. In this method, an aqueous reaction medium containing acidic buffer agent and nitrate ions in the presence of a limited amount of metal impurities such as Fe is introduced into a hydroxylamine synthesis reactor in the presence of catalyst to proceed hydroxylamine synthesis by reduction of nitrate ions with hydrogen gas as reducing agent in the aqueous reaction medium to produce hydroxylamine. The reaction is processed in the aqueous reaction medium with a limited amount of metal impurities, such that the selection rate of the hydroxylamine product is increased while high catalytic activity is kept.

Abstract: Provided is a method for manufacturing hydroxylamine. In this method, an aqueous reaction medium containing acidic buffer agent and nitrate ions in the presence of a limited amount of metal impurities such as Fe is introduced into a hydroxylamine synthesis reactor in the presence of catalyst to proceed hydroxylamine synthesis by reduction of nitrate ions with hydrogen gas as reducing agent in the aqueous reaction medium to produce hydroxylamine. The reaction is processed in the aqueous reaction medium with a limited amount of metal impurities, such that the selection rate of the hydroxylamine product is increased while high catalytic activity is kept.

Abstract: Provided is a method for manufacturing hydroxylamine. In this method, an aqueous reaction medium containing acidic buffer agent and nitrate ions in the presence of a limited amount of metal impurities such as Fe or Cu is introduced into a hydroxylamine synthesis reactor in the presence of catalyst to proceed hydroxylamine synthesis by reduction of nitrate ions with hydrogen gas as reducing agent in the aqueous reaction medium to produce hydroxylamine. The reaction is processed in the aqueous reaction medium with a limited amount of metal impurities or even without metal impurities, such that the selection rate of the hydroxylamine product is increased.

Abstract: Provided is a method for manufacturing hydroxylamine. In this method, an aqueous reaction medium containing acidic buffer agent and nitrate ions in the presence of a limited amount of metal impurities such as Fe or Cu is introduced into a hydroxylamine synthesis reactor in the presence of catalyst to proceed hydroxylamine synthesis by reduction of nitrate ions with hydrogen gas as reducing agent in the aqueous reaction medium to produce hydroxylamine. The reaction is processed in the aqueous reaction medium with a limited amount of metal impurities or even without metal impurities, such that the selection rate of the hydroxylamine product is increased.

Abstract: This invention provides a method for removing organic contaminants from an inorganic processing solution, comprising the step of: introducing the inorganic processing solution comprising organic contaminants into steam stripping treatment; heating the inorganic processing solution; reintroducing the inorganic processing solution into the steam stripping treatment; and removing the organic contaminants from the inorganic processing solution, thereby the inorganic processing solution comprises a total carbon content not more than 300 ppm, based on the total amount of the inorganic processing solution; wherein the step of heating is performed by heat exchange between the inorganic processing solution and desuperheated steam.

Abstract: A method for preparing hydroxylamine by reducing nitric acid or its salt with hydrogen gas in an aqueous medium in the presence of a catalyst, wherein reduction of nitric acid or its salt is performed in a reactor comprising a reaction section, a cooler disposed at the lower portion of the reactor, and a middle gas distributor and a lower gas distributor respectively disposed above and below the cooler for introducing hydrogen gas into the reaction section. According to the present invention, gas distribution become more uniform by disposing the gas distributors at different positions of the reactor, which results in higher yield of hydroxylamine.

Abstract: A method for preparing hydroxylamine by reducing nitric acid or its salt with hydrogen gas in an aqueous medium in the presence of a catalyst, wherein reduction of nitric acid or its salt is performed in a reactor comprising a reaction section, a cooler disposed at the lower portion of the reactor, and a middle gas distributor and a lower gas distributor respectively disposed above and below the cooler for introducing hydrogen gas into the reaction section. According to the present invention, gas distribution become more uniform by disposing the gas distributors at different positions of the reactor, which results in higher yield of hydroxylamine.

Abstract: A steam stripping device for an inorganic processing solution is provided, which includes a steam stripping unit for heat stripping the inorganic processing solution; a heat exchanging unit coupled to the steam unit for heating the inorganic processing solution; and a desuperheating unit for decreasing the temperature of a steam when overheated before the steam is fed into the heat exchanging unit by cooling liquid. The device can be applied to the inorganic processing solution for removing organic contaminants contained therein. By the provision of the desuperheating unit, the adverse influence on the inorganic processing solution caused by partially superheating can be prevented.

Abstract: Provided is a method for manufacturing hydroxylamine. In this method, an aqueous reaction medium containing acidic buffer agent and nitrate ions in the presence of a limited amount of metal impurities such as Fe or Cu is introduced into a hydroxylamine synthesis reactor in the presence of catalyst to proceed hydroxylamine synthesis by reduction of nitrate ions with hydrogen gas as reducing agent in the aqueous reaction medium to produce hydroxylamine. The reaction is processed in the aqueous reaction medium with a limited amount of metal impurities or even without metal impurities, such that the selection rate of the hydroxylamine product is increased.

Abstract: A method for preparing hydroxylamine by reducing nitric acid or its salt with hydrogen gas in an aqueous medium in the presence of a catalyst, wherein reduction of nitric acid or its salt is performed in a reactor comprising a reaction section, a cooler disposed at the lower portion of the reactor, and a middle gas distributor and a lower gas distributor respectively disposed above and below the cooler for introducing hydrogen gas into the reaction section. According to the present invention, gas distribution become more uniform by disposing the gas distributors at different positions of the reactor, which results in higher yield of hydroxylamine.