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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 8. Отображено 8.
12-05-2010 дата публикации

Technology for secondary recovery of gold from flotation tailings

Номер: CN0101705506A
Принадлежит:

The invention particularly discloses a technology for the secondary recovery of gold from flotation tailings, which comprises the following steps: conducting cyclone classification on ore pulp of the flotation tailings, grinding the cyclone-classified grit as crude ore, conducting ore pulp mixing on the ground ore powder, conducting cyanide leaching of gold, absorbing the leached gold by active carbon, desorbing gold-loaded carbon after saturated adsorption, and electrolyzing the desorption solution after desorption, thus obtaining gold powder. Unlike conventional processes, the technology only needs investment on the power cost of equipment and material cost instead of implementing pit discharging and pit loading by staff and vehicles, therefore, compared with the conventional treatment method, the technology has the characteristics of low cost, large treatment quantity, continuous operation and the capability of enhancing the ore dressing recovery rate by floatation technology to the ...

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10-06-2009 дата публикации

Fast gold-leaching process by CIP process

Номер: CN0101451191A
Принадлежит:

The invention belongs to all cyaniding carbon paste adsorption method gold extraction technology, and in particular relates to carbon paste method quick gold extraction technology. The technology comprises the steps of pulping, leaching and adsorption, and is characterized in that the pulping concentration is between 45 and 48 percent; the paste is stirred at the speed of between 250 and 300 revolutions per minute under the condition of pulping; the leaching temperature is controlled to be between 35 and 38 DEG C; and the pH value is between 10 and 12. The technology obviously reduces the pulping time and the leaching time, reduces equipment investment of a leaching tank, consumption of cyanide, the enterprise cost and the energy consumption, and increases the benefit.

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10-06-2009 дата публикации

Method for improving gold loaded carbon grade in gold-leaching process by carbon-in-pulp process

Номер: CN0101451193A
Принадлежит:

The invention relates to a method for improving the grade of gold-loaded carbon in cyaniding carbon-in-pulp process gold extraction technology, which comprises: active carbon with the pulp adsorption concentration between 43 and 46 percent is added for adsorption, wherein the interval time for carbon extraction is between 5 and 7 days, and the blowing-in burdening density of an adsorption tank is between 15 and 20 g/t pulp. By utilization of the method, the grade of the gold-loaded carbon reaches approximately 6,000 g/t from approximately 2,500 g/t before improvement and is improved by one and half times on the premise of guaranteeing the adsorption rate of the active carbon. Because the carbon extraction frequency is reduced, the method reduces the labor intensity of workers, the consumption of the active carbon, and the production cost of enterprises.

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17-06-2009 дата публикации

Gold recovery method from rebellions ore

Номер: CN0101455998A
Принадлежит:

The invention relates to a method for recovering gold from refractory ores, which comprises ore grinding and ore floatation, wherein the ore floatation is carried out according to a process of rougher flotation, scavenging and concentration, ore powder obtained after ore grinding is prepared into ore slurry with a concentration of between 21 and 25 percent, and the ore slurry is added with a collecting agent and a foaming agent for rougher flotation. The collecting agent is used according to a dosage of 500 to 620g/t and the foaming agent is used according to dosage of 6 to 15 g/t. A pneumatic cell is adopted for rougher floatation and scavenging. Air is charged at a speed of between 2,650 and 4,600 <3>/h. The ratio of the rough floatation to the scavenging is 1:1.1 to 1.2. The method improves the recovery rate of gold from the refractory ores, is particularly suitable for refractory ores with small gold disseminated grain size.

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17-03-2010 дата публикации

Method for detecting transveyer adhesive tape laceration

Номер: CN0100594375C
Принадлежит:

The invention relates to a checkout gear for tape tearing of a conveyor and the method thereof, in particular to a failure checkout gear of a tape of a belt conveyor and the method thereof. The failure checkout gear comprises an image pick device and an electronic device which are arranged under the tape, wherein, the image pick device is connected with the electronic device. The invention a the test method that: the image pick device and the electronic device are arranged under the tape, the image pick device performs the continuous videography at the surface of the lower side of the tape ofthe belt conveyor in service, and an imaging signal is outputted to the electronic device; after the electronic device analyzes and processes the images of the leaked materials and the surface of thetape in real time, the signal of no tape tearing is outputted. The invention utilizes an autoregulation camera head to photograph and scan the surface at the lower side of the tape in service, and matches ...

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17-06-2009 дата публикации

Gold secondary recovery method from cyaniding gold concentrator tailings

Номер: CN0101457298A
Принадлежит:

The invention relates to a method for secondary gold recovery from cyanide gold tailing. The method comprises the following steps: preparing the cyanide gold tailing into pulp with the concentration of 30-35%, stirring, carrying out flotation, and adopting agents such as aerofloat, xanthate and pine camphor oil to recover gold during the flotation, wherein, the addition amount of the aerofloat is 35-40g/t, the addition amount of the xanthate is 160-180g/t and the addition amount of the pine camphor oil is 6-8g/t. The method combines carbon pulp and the flotation process to make up for each other, further improves the gold recovery rate, reduces the metal losses, minimizes the tailings grade under the existing condition, maximizes the benefits, has short construction period, low investment, fast action and significant economic benefit, and can earn XX yuan per month for an enterprise if an average of 0.15g gold can be recovered from each ton of tailings.

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30-07-2008 дата публикации

Device and method for detecting transveyer adhesive tape laceration

Номер: CN0101231251A
Принадлежит:

The invention relates to a checkout gear for tape tearing of a conveyor and the method thereof, in particular to a failure checkout gear of a tape of a belt conveyor and the method thereof. The failure checkout gear comprises an image pick device and an electronic device which are arranged under the tape, wherein, the image pick device is connected with the electronic device. The invention a the test method that: the image pick device and the electronic device are arranged under the tape, the image pick device performs the continuous videography at the surface of the lower side of the tape of the belt conveyor in service, and an imaging signal is outputted to the electronic device; after the electronic device analyzes and processes the images of the leaked materials and the surface of the tape in real time, the signal of no tape tearing is outputted. The invention utilizes an autoregulation camera head to photograph and scan the surface at the lower side of the tape in service, and matches ...

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03-05-1995 дата публикации

New component PA of vegelable hypoglycemic active protein and its preparation

Номер: CN0001102188A
Принадлежит:

The present invention relates to the field of biopharmacy, extracting hypoglycemic active protein new component PA from plant material balsampear. Its preparation technology uses the methods of isoelectric precipitation, gel column filtration, UV detection and fractional collection. Said invention has the advantages of simple and convenient separation and extraction, low organic solvent consumption and high yield, etc.. The animal tests show that its hypoglycemic effect is notable.

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