Abstract: A catalyst for the hydrodesulfurization of hydrocarbons is disclosed. The catalyst comprises at least one metal selected from the metals of the Group VIB of the Periodic Table, the Group VIII of the Periodic Table and the Group VA of the Periodic Table, or oxides, sulfide or salts thereof, or a mixture thereof or a combined material thereof, and at least one rare earth metal compound supported on a refractory carrier. The catalyst according to the present invention has markedly higher desulfurization activities and a markedly longer catalyst life than the conventional catalysts, and hydrocarbons treated with the catalyst according to the present invention show little deterioration in hue and excellent hue stability for a long period of time.

Abstract: An adsorbent comprising a sepiolite and a zeolite, especially silicalite and a zeolite-containing adsorptive decomposition composition comprising the adsorbent and a catalyst component supported thereon are disclosed.A method of deodorizing which comprising using a composition comprising a sepiolite and a zeolite as an adsorbent and a method of purifying a gas containing unpleasant odors or noxious components, which comprises adsorbing such odors or noxious components in the gas on an adsorptive decomposition composition comprising the adsorbent and a catalyst component supported thereon and periodically or non-periodically heating said composition to desorb and decompose the adsorbates therefrom are also disclosed.Adsorptive compositions and adsorptive decomposition compositions have a large adsorption and desorption rate, get little degradation in their performances at repeated use, and exhibit excellent water resistance, namely, a large adsorption and decomposition capacity even when they are wet.

Abstract: Disclosed is a porous sepiolite having an improved water-resistance and thermal shock resistance obtained by grinding, moisture-conditioning and molding sepiolite, and then calcining said molded sepiolite at a temperature in the range of about 650.degree. C. to about 800.degree. C. Also disclosed is a porous sepiolite having a large specific surface area, wherein the pores having a pore diameter of 50 angstroms or less have a specific surface area in the range of from 40 to 200 m.sup.2 /g and in which no less than 20% of the total surface of the sepiolite is occupied with the pores having a pore diameter of 50 angstroms or less and wherein the pore distribution curve of the sepiolite has a main peak at a pore diameter of no more than 50 angstroms. This sepiolite is obtained by grinding, moisture-conditioning and molding sepiolite, calcining the same at a temperature in the range of about 650.degree. to about 800.degree. C., and then subjecting said calcined sepiolite to an acid treatment.

Abstract: Disclosed is a porous sepiolite having an improved water-resistance and thermal shock resistance obtained by grinding, moisture-conditioning and molding sepiolite, and then calcining said molded sepiolite at a temperature in the range of about 650.degree. C. to about 800.degree. C. Also disclosed is a porous sepiolite having a large specific surface area, wherein the pores having a pore diameter of 50 angstroms or less have a specific surface area in the range of from 40 to 200 m.sup.2 /g and in which no less than 20% of the total surface of the sepiolite is occupied with the pores having a pore diameter of 50 angstroms or less and wherein the pore distribution curve of the sepiolite has a main peak at a pore diameter of no more than 50 angstroms. This sepiolite is obtained by grinding, moisture-conditioning and molding sepiolite, calcining the same at a temperature in the range of about 650.degree. to about 800.degree. C., and then subjecting said calcined sepiolite to an acid treatment.

Abstract: Disclosed is a porous sepiolite having an improved water-resistance and thermal shock resistance obtained by grinding, moisture-conditioning and molding sepiolite, and then calcining said molded sepiolite at a temperature in the range of about 650.degree. C. to about 800.degree. C. Also disclosed is a porous sepiolite having a large specific surface area, wherein the pores having a pore diameter of 50 angstroms or less have a specific surface area in the range of from 40 to 200 m.sup.2 /g and in which no less than 20% of the total surface of the sepiolite is occupied with the pores having a pore diameter of 50 angstroms or less and wherein the pore distribution curve of the sepiolite has a main peak at a pore diameter of no more than 50 angstroms. This sepiolite is obtained by grinding, moisture-conditioning and molding sepiolite, calcining the same at a temperature in the range of about 650.degree. to about 800.degree. C., and then subjecting said calcined sepiolite to an acid treatment.

Abstract: A crane game machine which includes a premium article placing face for putting a large number of premium articles thereon, a crane having a plurality of hooks for grasping a premium article, and a driving mechanism for setting the crane to a position on the premium article placing face and for making the crane hooks grasp a premium article in response to a starting operation by an operator. A grasping force is changed by changing the weight of the crane. The probability of gaining the premium article can be regulated in a recreation hall or the like where the game machine is handled by varying the weight of the crane.

Abstract: An adsorbent comprising a sepiolite and a zeolite, especially silicalite and a zeolite-containing adsorptive decomposition composition comprising the adsorbent and a catalyst component supported thereon are disclosed.A method of deodorizing which comprising using a composition comprising a sepiolite and a zeolite as an adsorbent and a method of purifying a gas containing unpleasant odors or noxious components, which comprises adsorbing such odors or noxious components in the gas on an adsorptive decomposition composition comprising the adsorbent and a catalyst component supported thereon and periodically or non-periodically heating said composition to desorb and decompose the adsorbates therefrom are also disclosed.Adsorptive compositions and adsorptive decomposition compositions have a large adsorption and desorption rate, get little degradation in their performances at repeated use, and exhibit excellent water resistance, namely, a large adsorption and decomposition capacity even when they are wet.

Abstract: A ball-shooting game machine having a starter hole for initiating a separate game when a game ball shot onto a game board enters into the starter hole, and a separate game device for conducting the separate game, is provided with a random number generator to produce a random number when a predetermined number of balls is shot onto the game board and the results of any separate game is determined by the value of the random number generated.

Abstract: A coin inlet in which a storing recess capable of accommodating a plurality of coins in the state of being piled up is disposed parallel to a slot for inserting coins one by one so as to move the coins accommodated in the storing recess to the slot.

Abstract: A circuit board mounting apparatus comprising a circuit board case with a circuit board, a circuit board holding member with a connector and a supporting member, wherein the circuit board case has at least one extending portion capable of rotatably engaging with the supporting member so that the circuit board of the case can be easily attached to or detached from the connector of the circuit board holding member. The circuit board can efficiently and safely be installed or taken off in a limited mounting space in an electronic equipment. Also, since the case accommodating the circuit board is attached or detached, the circuit board is prevented from damage by carelessness during operation.

Abstract: This invention relates to an ozone cracking catalyst which comprises active manganese oxide carried on a ceramic fiber aggregate, characterized in that said active manganese oxide is carried on said ceramic fiber aggregate in such a manner as to provide micropores of 100.about.2000 .ANG. in diameter and in an amount of more than 0.02 cc/g, said ceramic fiber aggregate being composed of walls having vacant pores larger than 5000 .ANG. in diameter and in an amount of more than of 0.1 cc/g.

Abstract: A coin dispenser which includes a coin accommodating bucket having an opening formed at the bottom, a rotary disc disposed under the bucket so as to be rotated substantially horizontally for moving coins, which are supplied from the bucket through the opening, outside by a centrifugal force, a guide for receiving the fringes of the coins moved outside due to the rotation of the rotary disc and for inducing the coins to an outlet, a regulating board for receiving the coins in the bucket above the opening, and an elastic stirring member having a non-circular cross section which is rotated together with the rotary disc in the opening of the bottom of the bucket. The elastic member collides with the coins and flips them so that the coins are stirred, thus preventing the clogging of coins.

Abstract: This invention relates to a method for preparing a hydrodesulfurization catalyst which comprises (a) preparing a filter cake of amorphous alumina hydrate at a pH of 7.5-10.5; (b) dewatering the above prepared filter cake by a filter press to raise the Al.sub.2 O.sub.3 concentration to 28-35% by weight and kneading the dewatered filter cake for at least 10 seconds by a self-cleaning type kneader; (c) kneading the dough obtained from the step (b) while adding respective aqueous solutions of water-soluble salts of Group VIB and Group VIII catalyst metals respectively in an amount of 20-60% by weight (as a metal amount) of the total metal amount used at the position just before the entrance of a kneader, kneading the resultant mixture and extruding the kneaded mixture by an extruder; (d) drying and calcining the extrudate; and (e) impregnating the calcined product with salts of remaining catalyst metals in an aqueous ammonia solution and drying and calcining the resultant product.

Abstract: Disclosed is a process of preparing an alumina carrier which comprises kneading an amorphous alumina hydrate, whose alumina concentration is in the range of 28-35 wt. % and which has been obtained by neutralizing an aluminum sulfate solution with a sodium aluminate solution at two stages, while endowing said hydrate with sufficient shearing effect and alternate compression and expansion effect; extruding a resulting dough; drying and calcining the extrudates. According to this process, it becomes possible to control the growth of pseudoboehmite grains contained in the alumina hydrate by controlling the time required for kneading, and accordingly it becomes possible to control the pore distribution of the finally obtained alumina carrier.

Abstract: A method of manufacturing spherical alumina particles which comprises the steps of digesting, at an elevated temperature and an elevated pressure, gibbsite with an aqueous hydrochloric acid solution and then forming an aqueous basic aluminum chloride solution; adding, at an elevated temperature, an aqueous ammonia to said aqueous basic aluminum chloride solution to form an alumina hydrosol containing ammonium chloride; commingling said alumina hydrosol with a gelling agent; thereafter dispersing droplets of said mixture in a suspending medium under conditions effective to transform said droplets into hydrogel particles; ageing said hydrogel particles first in said suspending medium and then in aqueous ammonia; and then washing said hydrogel particles with water, drying and calcining to obtain spherical alumina particles.

Abstract: A method of manufacturing spherical alumina comprising preparing a basic aluminum chloride solution having an aluminum concentration in the range of from 7 wt.% to 12 wt.% and a weight ratio of aluminum to chloride in the range of from 0.3 to 0.8 by reacting gibbsite with an aqueous hydrochloric acid solution at an elevated temperature, preparing an alumina hydrosol having an aluminum concentration in the range of from 9 wt.% to 15 wt.% and a weight ratio of aluminum to chloride in the range of from 0.8 to 1.5 by reacting the thus prepared solution with metallic aluminum at an elevated temperature, commingling this hydrosol with a gelling agent, dispersing the resulting mixture in the form of droplets in a suspending medium thereby to form hydrogel particles, ageing the thus obtained particles in said suspending medium and then an aqueous ammonia, washing with water, drying and calcining. The thus obtained spherical alumina is substantially free from sodium in spite of employing gibbsite as raw material.

Abstract: A catalyst carrier comprising gamma alumina wherein the apparent bulk density is in the range of from 0.65 g/cc to 0.71 g/cc, the total pore volume is in the range of from 0.55 cc/g to 0.65 cc/g, the content of pores having a diameter in the range of from 60A to 110A occupies at least 75% of the total pore volume, the surface area is in the range of from 210 m.sup.2 /g to 250 m.sup.2 /g and the attrition loss is less than 0.5 wt. %. This sort of catalyst carrier can be namufactured through a series of steps of: (a) preparing a first alumina hydrosol having an aluminum concentration in the range of from 9.8 wt. % to 14.4 wt. % and a weight ratio of aluminum to chloride in the range of from 0.95 to 1.20, (b) preparing a second alumina hydrosol having an aluminum concentration in the range of from 9.5 wt. % to 13.0 wt. % and a weight ratio of aluminum to chloride in the range of from 0.85 to 0.

Abstract: Substantially spherical alumina particles are obtained by a process comprising ageing substantially spherical alumina hydrogel particles obtained by the oil-drop method in an ammonium hydroxide solution wherein the concentration of ammonia changes continuously from an initial concentration in the range of from about 0.05 wt.% to about 0.5 wt.% to a final concentration in the range of from about 0.8 wt.% to about 2.5 wt.%. Alumina particles obtained by this process possess improved physical strength. Alumina particles which are obtained by calcining alumina particles aged in an ammonium hydroxide solution, wherein the concentration of ammonia increases continuously, at a temperature in the range of from 650.degree. to 800.degree. C in an atmosphere containing 30 mol.% or more of H.sub.2 O possesses a further improved thermal stability.