{"id":7308,"date":"2019-08-26T09:06:39","date_gmt":"2019-08-26T01:06:39","guid":{"rendered":"https:\/\/www.jxscmachine.com\/?post_type=solutions&p=7308"},"modified":"2020-01-03T11:27:09","modified_gmt":"2020-01-03T03:27:09","slug":"processamento-da-pirite","status":"publish","type":"solutions","link":"https:\/\/www.jxscmachine.com\/pt\/solutions\/pyrite-processing\/","title":{"rendered":"Pirite"},"content":{"rendered":"
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\"Pirite\"<\/div>\n\t\t<\/figure>\n\t<\/div>\n
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Tipo<\/strong>
\nMineral<\/p>\n

Classifica\u00e7\u00e3o de minerais<\/strong>
\nSulfureto<\/p>\n

F\u00f3rmula qu\u00edmica<\/strong>
\nFeS2<\/p>\n

Faixa<\/strong>
\nPreto ou castanho<\/p>\n

Dureza de Mohs<\/strong>
\n6-6.5<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div>

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Sistema de cristais<\/strong>
\nIsom\u00e9trico<\/p>\n

Cor<\/strong>
\namarelo-bronze dourado<\/p>\n

Brilho<\/strong>
\nMet\u00e1lico<\/p>\n

Fratura<\/strong>
\nMuito irregular, conchoidal<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div>

<\/div>

Descri\u00e7\u00e3o<\/h2><\/div><\/div>\n\t
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A pirite \u00e9 o sulfureto mais amplamente distribu\u00eddo na crosta terrestre, coexistindo frequentemente com outros sulfuretos. A pirite \u00e9 a principal mat\u00e9ria-prima mineral para a extra\u00e7\u00e3o de enxofre e a produ\u00e7\u00e3o de \u00e1cido sulf\u00farico. Com Au, Co, Ni, os elementos associados podem ser extra\u00eddos.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n

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M\u00e9todos de tratamento da pirite<\/h2><\/div><\/div>\n\t
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O processamento da pirite \u00e9 efectuado principalmente por flota\u00e7\u00e3o, atrav\u00e9s do processo de separa\u00e7\u00e3o por gravidade e da combina\u00e7\u00e3o gravidade-flota\u00e7\u00e3o.<\/p>\n

Processo de separa\u00e7\u00e3o por gravidade<\/strong>
\nPara min\u00e9rio com propriedades simples, tamanho de gr\u00e3o mais grosseiro ou tamanho de gr\u00e3o irregular, pode ser utilizado um \u00fanico processo de separa\u00e7\u00e3o por gravidade. O equipamento geral de separa\u00e7\u00e3o por gravidade, como o gabarito de pirite, a calha espiral, o hidrociclone, as mesas de agita\u00e7\u00e3o, etc., pode recuperar eficazmente a pirite. Processo simples, baixo consumo de energia.<\/p>\n

Processo de flota\u00e7\u00e3o<\/strong>
\nA maior parte dos recursos de pirite na China cont\u00e9m minerais de ganga alcalinos e o pH da polpa tem geralmente de ser ajustado a um n\u00edvel ligeiramente \u00e1cido, o que resulta num grande consumo de \u00e1cido durante o processo de flota\u00e7\u00e3o, numa grande quantidade de coletor, num ambiente hostil e numa corros\u00e3o grave do equipamento.<\/p>\n

Processo combinado gravidade-flota\u00e7\u00e3o<\/strong>
\nO processo \u00e9 adequado para pirite com tamanho de gr\u00e3o irregular ou fragilidade fri\u00e1vel. O processo combinado de gravidade-flota\u00e7\u00e3o consiste geralmente na tritura\u00e7\u00e3o grosseira e na classifica\u00e7\u00e3o do min\u00e9rio em bruto. A separa\u00e7\u00e3o \u00e9 efectuada por meio de equipamento adequado de separa\u00e7\u00e3o por gravidade para obter uma parte do concentrado de pirite.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n

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Equipamento de extra\u00e7\u00e3o de pirite<\/h2><\/div><\/div>\n\t
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O equipamento de extra\u00e7\u00e3o de pirite inclui triturador de cone<\/a>, triturador de maxilas<\/a>, moinho de bolas<\/a>, separador magn\u00e9tico<\/a>, m\u00e1quina de jigue<\/a>, mesa de agita\u00e7\u00e3o<\/a>, m\u00e1quina de flota\u00e7\u00e3o<\/a>, etc.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n

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Beneficiamento de pirita de cobre e zinco<\/h2><\/div><\/div>\n\t
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Na natureza, os minerais que cont\u00eam cobre e zinco dividem-se geralmente em pirite de cobre-zinco, pirite que cont\u00e9m cobre e min\u00e9rio de cobre-enxofre. Para al\u00e9m da pirite, os principais minerais met\u00e1licos do min\u00e9rio de cobre-zinco incluem a calcopirite, a esfalerite, a galena, a calcopirite, etc. Os principais minerais met\u00e1licos do min\u00e9rio de caro\u00e7o s\u00e3o o chumbo-van\u00e1dio, o cobre-azul, a limonite, a magnetite, etc., e a sua principal composi\u00e7\u00e3o de ganga \u00e9 o quartzo.<\/p>\n

1. Flota\u00e7\u00e3o priorit\u00e1ria de cobre e zinco - flota\u00e7\u00e3o e separa\u00e7\u00e3o mista de enxofre<\/p>\n

A pr\u00e1tica provou que a utiliza\u00e7\u00e3o da ativa\u00e7\u00e3o do sulfato de cobre e do xantato de butilo como coletor na flota\u00e7\u00e3o preferencial do cobre pode fazer com que o min\u00e9rio misto de zinco e enxofre contenha 6,5% de zinco e 40,29% de enxofre, e a taxa de recupera\u00e7\u00e3o de zinco e enxofre pode atingir mais de 90%. Mais tarde, quando a cal pode ser usada para ajustar o valor do pH da polpa para supress\u00e3o de enxofre e separa\u00e7\u00e3o de zinco, \u00e0 medida que a quantidade de cal aumenta, o efeito de separa\u00e7\u00e3o de zinco e enxofre est\u00e1 a melhorar cada vez mais, e as taxas de recupera\u00e7\u00e3o de concentrado de zinco e concentrado de enxofre s\u00e3o melhoradas. Ao utilizar o zinco para separar o zinco e o enxofre, o concentrado de zinco bruto cont\u00e9m 29,28% de zinco, a taxa de recupera\u00e7\u00e3o atinge 98%, o concentrado de enxofre cont\u00e9m 42,86% de enxofre e a taxa de recupera\u00e7\u00e3o \u00e9 de 82%.<\/p>\n

2. Flota\u00e7\u00e3o priorit\u00e1ria de cobre, zinco de rejeitos e enxofre<\/p>\n

Depois que o concentrado de cobre \u00e9 preferencialmente selecionado, os rejeitos de cobre usam diretamente a cal para ajustar o pH da polpa para suprimir o enxofre, o sulfato de cobre e ativar os minerais de zinco. Quando a quantidade de cal \u00e9 superior a 3kg \/ t, a polpa \u00e9 alcalina e o pH \u00e9 superior a 12,2. O sulfato de cobre \u00e9 100g \/ t, quando o xantato de butilo \u00e9 60g \/ t, o enxofre pode ser bem suprimido e a taxa de recupera\u00e7\u00e3o de zinco \u00e9 aumentada para 96%. Desta forma, o concentrado de zinco grosso selecionado pode ser refinado novamente duas vezes para obter concentrado de zinco. E os rejeitos de zinco podem usar \u00e1cido sulf\u00farico ou sulfato ferroso e, em seguida, neutralizar ligeiramente a alcalinidade da polpa, ajustar o pH para 11,9-12, sulfato de cobre 50g \/ t e xantato de butila 100g \/ t podem escolher o teor de enxofre 43 % Concentrado de enxofre, e a taxa de recupera\u00e7\u00e3o de enxofre atinge 95%.<\/p>\n

3. sele\u00e7\u00e3o de cobre simples<\/p>\n

O cobre de flota\u00e7\u00e3o simples \u00e9 um tipo de produ\u00e7\u00e3o de beneficiamento que adiciona inibidor de zinco para abandonar o zinco met\u00e1lico no min\u00e9rio bruto. Este m\u00e9todo pode reduzir o grau de zinco no concentrado de cobre e reduzir o custo de produ\u00e7\u00e3o, mas tamb\u00e9m causa a perda de zinco met\u00e1lico no min\u00e9rio bruto. Como resultado do desperd\u00edcio de recursos, este m\u00e9todo \u00e9 geralmente utilizado para obter apenas cobre met\u00e1lico, simplificando o processo e reduzindo os custos. Este m\u00e9todo n\u00e3o \u00e9 uma boa forma de melhorar a efici\u00eancia econ\u00f3mica.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

A pirite \u00e9 o sulfureto mais amplamente distribu\u00eddo na crosta terrestre, coexistindo frequentemente com outros sulfuretos. A pirite \u00e9 a principal mat\u00e9ria-prima mineral para a extra\u00e7\u00e3o de enxofre e a produ\u00e7\u00e3o de \u00e1cido sulf\u00farico. Com Au, Co, Ni, os elementos associados podem ser extra\u00eddos.<\/p>","protected":false},"author":1,"featured_media":7328,"parent":0,"menu_order":20,"comment_status":"open","ping_status":"open","template":"","format":"standard","meta":{"_acf_changed":false,"ngg_post_thumbnail":0,"footnotes":""},"class_list":["post-7308","solutions","type-solutions","status-publish","format-standard","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"\nPyrite Processing | Equipment, Process Flow, Cases - JXSC Machine<\/title>\n<meta name=\"description\" content=\"Pyrite processing description from its geology mineral property to how to extract mineral from rock and placer deposit, related processing plant flow chart and layout design.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.jxscmachine.com\/pt\/solucoes\/processamento-da-pirite\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pyrite Processing | Equipment, Process Flow, Cases - 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