KR830003369A - Heat treatment method of phosphorite - Google Patents

Heat treatment method of phosphorite Download PDF

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KR830003369A
KR830003369A KR1019800003407A KR800003407A KR830003369A KR 830003369 A KR830003369 A KR 830003369A KR 1019800003407 A KR1019800003407 A KR 1019800003407A KR 800003407 A KR800003407 A KR 800003407A KR 830003369 A KR830003369 A KR 830003369A
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제임스 루이 에드워드
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케이· 에이· 워드, 시·엔·윌슨
알브라이트 앤드 윌슨 리밋티드
시. 엔. 윌슨
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    • C01B25/222—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen
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    • C01B25/223—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen only one form of calcium sulfate being formed
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    • C01B25/461—Preparation involving solvent-solvent extraction the phosphoric acid present in the medium obtained after reaction being first extracted from the liquid phase formed or separated then re-extracted as free acid by using water or as a phosphate by using a basic compound
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    • C05B11/04—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes using mineral acid
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Abstract

내용 없음No content

Description

인광석의 열처리법Heat treatment method of phosphorite

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

Claims (45)

유기화합물을 함유한 칼슘 인광석을 380-600℃로 열처리하여 유기화합물을 탄소로 변화시켜 탄소입자를 수반하는 가열된 광석을 형성하도록 함을 특징으로 하는 인광석의 열처리 방법.Heat treating calcium phosphate ores containing organic compounds at 380-600 ° C. to convert the organic compounds to carbon to form heated ores with carbon particles. 광석이 380-600℃온도의 적어도 하나의 가열된 지역을 지속적으로 통과하여 유출되므로서 가열되는 청구범위 제1항에 의한 방법.The method according to claim 1, wherein the ore is heated by continuously flowing through at least one heated zone at a temperature of 380-600 ° C. 광석을 380-480℃에서 가열시키는 청구범위 제1항 또는 2항에 의한 방법.The process according to claim 1 or 2, wherein the ore is heated at 380-480 ° C. 광석을 460-540℃에서 가열시키는 청구범위 제1항 또는 2항에 의한 방법.The process according to claim 1 or 2, wherein the ore is heated at 460-540 ° C. 광석이 플로리다 또는 에집트산일 경우 490-510℃에서 가열함이 적절하며 러시아산일 경우 490-540℃에서 가열함이 적절하며 유타 또는 모로코산일 경우 540-560℃에서 가열함이 적절한 청구범위 제1항에 의한 방법.It is appropriate to heat at 490-510 ° C if the ore is of Florida or Egypt, and to 490-540 ° C for Russia and to 540-560 ° C for Utah or Morocco. By the way. 광석이 부자상태의 산소를 수반하는 가스 존재하에 가열되는 청구범위 제1-5항에 의한 방법.The method according to claims 1-5, wherein the ore is heated in the presence of a gas carrying oxygen in the rich state. 광석이 0.05-0.4%의 유기화합물(탄소로 표기되는 것)과 산용해의 유기물을 수반하는 청구범위 제1-6항의 어느 하나에 의한 방법.The process according to any one of claims 1-6, wherein the ore is accompanied by an organic compound (denoted by carbon) of 0.05-0.4% and an organic compound of acid dissolution. 광석이 30-40% P2O5와 45-55% Ca(CaO로 표기되는 것)를 수반하는 청구범위 제1-7항에 의한 방법.Process according to claims 1-7, wherein the ore is accompanied by 30-40% P 2 O 5 and 45-55% Ca (denoted as CaO). 가열하기 전의 인광석이 27%의 염산으로 갈색 액체를 생성하는 광석인 청구범위 제1-8항에 의한 방법.The process according to claims 1-8, wherein the phosphor ore before heating is an ore which produces a brown liquid with 27% hydrochloric acid. 광석의 출처가 미국의 이다호(Idaho), 북케롤리나 및 테네서, 튜지니아, 요르단, 알제리아, 세네갈, 모로코의 유소피아(Youssoufia), 코라(Kola), 노루(Nauru), 오세아니아 및 이스라엘의 진인 청구범위 제1-9항에 의한 방법.Ore origins in Idaho, Northern Carolina and Tennessee in the United States, Tunisia, Jordan, Algeria, Senegal, Youssoufia in Morocco, Kola, Nauru, Oceania and Israel Method in accordance with claims 1-9. 플로리다 광석을 450-550℃에서 15분-2시간 연속방법으로 가열하는 청구범위 제2, 7 또는 8항에 의한 방법.The method according to claim 2, 7 or 8, wherein the Florida ore is heated at 450-550 ° C. in a 15 minute-2 hour continuous method. 모로코 광석을 380-440℃에서 15분-2시간 연속공정으로 가열하는 청구범위 제2 또는 8항에 의한 방법.The process according to claim 2 or 8, wherein the Moroccan ore is heated in a continuous process of 15 minutes-2 hours at 380-440 ° C. 광석이 유기화합물과 산에 용해되지 않으며, 열에 용해되는 황화철을 수반하고 있어서 산불용의 황화철을 산에 용해할 수 있는 황화철로 변화시키는데 충분한 온도로 가열하여, 인광석, 탄소입자 및 산불용의 황화철로 이루어진 가열된 광석이 만들어지는 청구범위 제1-12항에 의한 방법.Ore is not soluble in organic compounds and acids, and is accompanied by iron sulphate, which dissolves in heat, and is heated to a temperature sufficient to convert iron insoluble iron sulfide into iron sulfide that can dissolve in acid, resulting in phosphorus, carbon particles and acid insoluble iron sulfide. Process according to claims 1-12, wherein a heated ore is made. 가열하기 전의 광석이 산불용의 황화철을 적어도 500PPm을 가진 청구범위 제13항에 의한 방법.The method according to claim 13, wherein the ore before heating has at least 500 PPm of acid insoluble iron sulfide. 청구범위 제1-14항의 어느 하나의 방법에 의해 제조되는 열처리 칼슘인광석.Heat-treated calcium phosphorus ore prepared by the method of any one of claims 1-14. 탄소입자를 가지고 있으나 실제로 산불용의 유기화합물이 아닌 열처리 칼슘인광석.Heat-treated calcium phosphate ore with carbon particles but not an acid-insoluble organic compound. 산불용이나 열에 용해될 수 있는 황화철로 이루어진 청구범위 제16항에 따르는 광석.Ore according to claim 16 consisting of iron sulfide which can be insoluble in acid or heat. 황화철을 적어도 500PPm 가진 청구범위 제17항에 따르는 광석.Ore according to claim 17 with at least 500 PPm of iron sulfide. 황화철의 적어도 80%가 산에 불용이고 그 나머지가 산에 용해되는 청구범위 제17 또는 18항에 따르는 광석.The ore according to claim 17 or 18, wherein at least 80% of the iron sulfide is insoluble in acid and the remainder is dissolved in acid. 청구범위 제15-19항의 어느 하나와 마찬가지인 탄소입자로 이루어진 인광석을 인산 또는 황산의 적어도 하나와 반응시켜 인산칼슘염의 비료를 형성하는 인산광에서 인산염을 제조하는 방법.A process for producing phosphate in phosphate ores, wherein the phosphate ore consisting of carbon particles as in any one of claims 15-19 is reacted with at least one of phosphoric acid or sulfuric acid to form a fertilizer of calcium phosphate salt. 광석이 모르코 또는 유타산일 경우 연속공정으로 가열되거나, 380-440℃, 460-540℃ 또는 560-600℃에서 가열되며 황산 또는 인산과의 혼합물과 반응시키는 청구범위 제20항에 의한 방법.The process according to claim 20 wherein the ore is heated in a continuous process or heated at 380-440 ° C., 460-540 ° C. or 560-600 ° C. and reacted with a mixture with sulfuric acid or phosphoric acid if the ore is morpho or utaic acid. 광석을 460-540℃에서 가열시키는 청구범위 제20 또는 21항에 의한 방법.Process according to claim 20 or 21, wherein the ore is heated at 460-540 ° C. 광석 및 그 가열처리가 청구범위 제2, 11 또는 12에서와 마찬가지인 청구범위 제21 또는 22에의한 방법.The method according to claim 21 or 22, wherein the ore and its heat treatment are the same as in claims 2, 11 or 12. 탄소입자로 이루어진 광석을 광석과의 반응에 필요로 되는 양의 80-120%인 인산과 반응시켜 인산수소칼슘(calcium dihydrogen phosphate)를 생성하거나 광석과의 반응에 필요로 되는 양의 80-120%인 황산과 반응시켜 황산칼슘과 황산수소칼슘의 혼합물을 생성하는 청구범위 제20-23항의 어느 하나에 의한 방법.Ore consisting of carbon particles is reacted with 80-120% phosphoric acid in the amount required for reaction with ore to produce calcium dihydrogen phosphate or 80-120% of the amount required for reaction with ore The process according to any one of claims 20-23, which reacts with phosphorus sulfuric acid to produce a mixture of calcium sulfate and calcium hydrogen sulfate. 380-600℃에서 가열하거나 청구범위 제15-19항의 어느 하나에 의한 탄소입자로 이루어진 칼슘인광석을 염산, 질산 또는 황산과 같은 무기산과 반응시켜 그 칼슘염, 인산 및 탄소입자의 혼합물을 제조하고 그 혼합물에서 탄소입자로 이루어진 고체물질을 분리하는 인산광에서 인산을 제조하는 방법.Calcium phosphate ore composed of carbon particles according to any one of claims 15-19 or heated at 380-600 ° C. is reacted with an inorganic acid such as hydrochloric acid, nitric acid or sulfuric acid to prepare a mixture of calcium salts, phosphoric acid and carbon particles. A process for producing phosphoric acid in a phosphate ore that separates solid materials consisting of carbon particles from a mixture. 청구범위 제2항에서와 마찬가지로 인광석을 연속적으로 가열시키는 청구범위 제25항에 의한 방법.The method according to claim 25, wherein the phosphorite is continuously heated as in claim 2. 산이 염산만일 때 380-590℃에서 인광석을 가열하는 청구범위 제25 또는 26항에 의한 방법.The process according to claim 25 or 26, wherein the phosphor is heated at 380-590 ° C. when the acid is hydrochloric acid only. 탄소입자로 이루어진 광석을 광석의 칼슘함량의 적어도 90%에 해당하는 산의 양과 반응시키는 청구범위 제25, 26 또는 27항에 의한 방법.Process according to claim 25, 26 or 27, wherein the ore consisting of carbon particles is reacted with an amount of acid corresponding to at least 90% of the calcium content of the ore. 광석이 플로리와 또는 모로코산일 때 380-550℃로 가열되는 청구범위 제28항에 의한 방법.The method according to claim 28, wherein the ore is heated to 380-550 ° C. when it is from Floriwa or Morocco. 산이 질산과 황산중에 적어도 하나인 청구범위 제25, 26, 28 또는 29항에 의한 방법.Process according to claim 25, 26, 28 or 29, wherein the acid is at least one of nitric acid and sulfuric acid. 탄소입자로 이루어진 광석을 황산과 인산의 혼합물과 반응시켜 황산칼슘과 탄소입자로 이루어진 고체를 생성하고 이 고체 침전물질에서 인산용액을 분리하는 청구범위 제30항에 의한 방법.The method according to claim 30, wherein the ore consisting of carbon particles is reacted with a mixture of sulfuric acid and phosphoric acid to produce a solid consisting of calcium sulfate and carbon particles and to separate the phosphoric acid solution from the solid precipitate. 열처리되는 광석이 산에 불용이고 열로 용해될 수 있는 황화철로 이루어져 있을 때 생성된 고체 침전 물질은 탄소입자와 산에 불용인 황화철로 이루어져 있는 청구범위 제25-31항의 어느 하나에 의한 방법.The process according to any one of claims 25-31, wherein the solid precipitate material produced when the ore to be heat treated consists of iron sulfide which is insoluble in the acid and can be thermally dissolved. 고체침전 물질을 분리한 후에, 인산을 물에 섞이지 않는 유기용매로 처리하여 유기층과 수층으로 만들어 인산을 두층의 적어도 어느 하나에서 분리하는 청구범위 제25-32항의 어느 하나에 의한 방법.The method according to any one of claims 25-32, wherein after separating the solid precipitated material, phosphoric acid is treated with an organic solvent which does not mix with water to form an organic layer and an aqueous layer to separate phosphoric acid in at least one of the two layers. 인산은 우라늄을 함유하는데 앞서의 고체침전 물질을 분리하여 산을 농축하거나 하지 않은 상태에서 용매로 추출하여 유기층에서 우라늄을 어느 정도 제거하여 재생시키는 청구범위 제33항에 의한 방법.The method according to claim 33, wherein phosphoric acid contains uranium, and the solid precipitated material is separated and the acid is concentrated or extracted with a solvent in the absence of uranium to remove some of the uranium from the organic layer. 고체침전 물질을 분리한 후 농축하거나 농축하지 않은 상태에서 물과 섞일 수 없는 유기용매로 추출하여 순수한 인산으로 이루어진 유기층과 수층으로 나뉘게 하고 인산을 유기층으로부터 인산이나 그 염의 상태로 분리하는 청구범위 제33 또는 34항에 의한 방법.Claim 33, which separates the solid precipitated material, extracts it with an organic solvent that cannot be mixed with water in the concentrated or uncondensed state, divided into an organic layer and an aqueous layer of pure phosphoric acid, and separates phosphoric acid from the organic layer in the form of phosphoric acid or salts thereof. Or the method according to claim 34. 고체침전 물질을 분리한 후 산을 농축하거나 농축하지 않은 상태에서 암모니아를 수반하는 질소 화합물중의 적어도 어느 하나와 처리하여 인산암모늄의 염을 적어도 하나를 생성하는 청구범위 제25-34항의 어느 하나에 의한 방법.The method of any of claims 25-34, wherein the separation of the solid precipitate material is followed by treatment with at least one of the nitrogen compounds with ammonia, either with or without acid concentration, to produce at least one salt of ammonium phosphate. By the way. 고체침전 물질을 분리한 후 인산을 알카리로 처리하여 적어도 하나의 알카리 금속의 인산염을 생성하여 분리하는 청구범위 제25-34의 어느 하나에 의한 방법.The process according to any one of claims 25-34, wherein after separating the solid precipitated material, phosphoric acid is treated with alkali to produce and separate at least one alkali metal phosphate. 청구범위 제20-24 또는 39항에 어느 하나의 방법에 의해 제조되는 인산칼슘 비료.Calcium phosphate fertilizer prepared by the method of any one of claims 20-24 or 39. 청구범위 제25-30 또는 39항의 어느 하나의 방법에 의해 제조되는 칼슘염과 인산으로 이루어진 액체 혼합물.A liquid mixture consisting of calcium salt and phosphoric acid prepared by the method of any one of claims 25-30 or 39. 청구범위 제30-32 또는 39항의 어느 하나의 방법에 의해 제조되는 인산용액.A phosphoric acid solution prepared by the method of any one of claims 30-32 or 39. 청구범위 제33-35항 또는 39항의 어느 하나의 방법에 의해 제조되는 정제된 인산 또는 그의 염.Purified phosphoric acid or salt thereof prepared by the method of any one of claims 33-35 or 39. 청구범위 제34 또는 39항의 방법에 의해 제조되는 우라늄을 수반하는 생성물.A product involving uranium prepared by the method of claim 34 or 39. 청구범위 제36 또는 39항의 방법에 의해 제조되는 인산 암모늄.Ammonium phosphate prepared by the method of claim 36 or 39. 청구범위 제37 또는 39항의 방법에 의해 제조되는 알카리 금속의 인산염.Phosphates of alkali metals prepared by the process of claims 37 or 39. 청구범위 제38 또는 39항의 방법에 의해 제조되는 인산수소칼슘.Calcium hydrogen phosphate prepared by the method of claims 38 or 39. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
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