CN102626674B - Method for extracting vesuvius salt from carbonate saline lake - Google Patents

Method for extracting vesuvius salt from carbonate saline lake Download PDF

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CN102626674B
CN102626674B CN 201210106566 CN201210106566A CN102626674B CN 102626674 B CN102626674 B CN 102626674B CN 201210106566 CN201210106566 CN 201210106566 CN 201210106566 A CN201210106566 A CN 201210106566A CN 102626674 B CN102626674 B CN 102626674B
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mass content
mother liquor
concentrate
roughly
extracting
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CN102626674A (en
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张志宏
马艳芳
董生发
付振海
年洪恩
朱建荣
严志硕
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Qinghai Institute of Salt Lakes Research of CAS
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Qinghai Institute of Salt Lakes Research of CAS
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Abstract

The invention relates to a method for extracting a vesuvius salt from a carbonate saline lake. The method comprises the following steps of: (1) uniformly mixing a Tibetan salt pan potash-bearing salt mixture serving as a raw material with a quartering method, and smashing and sieving to obtain a smashed raw material; (2) adding a saturated mother solution and a floatation medicament into the smashed raw material for roughing too obtain a foam solid liquid A and tailing slurry A; (3) filtering and separating the foam solid liquid A to obtain a solid-phase roughed ore concentrate and a mother solution A, and filtering and separating the tailing slurry A to obtain solid-phase roughed tailing and a mother solution B; (4) repeating the steps (2) to (3) for 6-8 times, and uniformly mixing the obtained roughed ore concentrate; and (5) putting the mixed roughed ore concentrate into a floatation groove, adding the mother solution A and the mother solution B for concentrating to obtain a foam solid liquid B and tailing slurry B respectively, and filtering and separating the foam solid liquid B to obtain an ore concentrate in which the mass content of the vesuvius salt is 87.3-91.0 percent. The method has low cost, and is easy for realizing industrialization.

Description

A kind of method of from the carbonate-type salt lake, extracting glaserite
Technical field
The present invention relates to the chemical industry of inorganic salt technical field, relate in particular to a kind of method of from the carbonate-type salt lake, extracting glaserite.
Background technology
The Tibet salt lake resources mainly is present in the liquid bittern, through potassium ion behind the natural solar evaporation mainly with KCl, Na 2SO 43K 2SO 4Form exists.Make the method (seeing " a kind of method of extracting potassium chloride from the carbonate-type salt lake ", application number 201110267872.0) of KCl with hot melt, its shortcoming is that this method is only at the extracting method of the KCl in the hydrochloride type salt lake, to extracting Na 2SO 43K 2SO 4Not narration, and Na is at first separated out in the potassium ore deposit in the salt lake, Tibet in evaporation and crystal process 2SO 43K 2SO 4, the evaporation route is longer, and the evaporation route of KCl is shorter, so Na in the potassium ores in the carbonate-type salt lake, Tibet 2SO 43K 2SO 4Shared ratio is much larger than the KCl proportion.At present for extracting Na in the carbonate-type salt lake 2SO 43K 2SO 4Method report domesticly find as yet, also fail to find suitable floating agent.
Summary of the invention
Technical problem to be solved by this invention provides a kind of method that adopts floatation to extract glaserite from the carbonate-type salt lake.
For addressing the above problem, a kind of method of extracting glaserite from the carbonate-type salt lake of the present invention may further comprise the steps:
⑴ mix salt pan, raw material Tibet potassium ores with quartering after, through the ball mill fragmentation, cross 40 mesh sieves, obtain the raw material after the fragmentation;
⑵ add the saturated mother liquor of 950 ~ 1050g and 1 ~ 3mL floating agent respectively in the raw material after the described fragmentation of every 150g, roughly select under 10 ~ 35 ℃ of temperature with groove type floatation cell, obtain foam solid-liquid A and mine tailing ore pulp A behind 3 ~ 5min respectively;
⑶ after described foam solid-liquid A separates after filtration, obtain solid phase and roughly select concentrate and mother liquor A; After described mine tailing ore pulp A separates after filtration, obtain solid phase rougher tailings and mother liquor B; Described mother liquor A and described mother liquor B be back to described step ⑵ to roughly select operation recycling;
⑷ after repeating said steps ⑵ ~ ⑶ 6 ~ 8 times, gained is roughly selected concentrate mix;
⑸ place flotation cell with the described mixed concentrate of roughly selecting, and adds described mother liquor A or described mother liquor B by the feed liquid mass volume ratio of 1:45 ~ 1:52, carries out selectedly under 10 ~ 35 ℃ of temperature, obtains foam solid-liquid B and mine tailing ore pulp B behind 4 ~ 5min respectively; After described foam solid-liquid B separates after filtration, obtain the glaserite mass content and be 87.3 ~ 91.0% concentrate; Described mine tailing ore pulp B is back to the operation of roughly selecting of described step ⑵.
K in the potassium ores of salt pan, raw material Tibet among the described step ⑴ +Mass content is 4.70 ~ 10.07%, Cl -Mass content is 42.48 ~ 49.73%, SO 4 2-Mass content is 5.17 ~ 12.31%, CO 3 2-Mass content is 0.89 ~ 1.87%.
Saturated mother liquor refers to K among the described step ⑵ +, Cl -, SO 4 2-, CO 3 2-Be total to saturated solution, wherein K +Mass content is 3.5 ~ 4.52%, Cl -Mass content is 8.0 ~ 10.93%, SO 4 2-Mass content is 1.5 ~ 3.5%, CO 3 2-Mass content is 7.0 ~ 12.0%, and its pH value is 9.34 ~ 11.58.
Floating agent is to be 2% medicament by the mass concentration that petroleum sodium sulfonate, lauryl sodium sulfate and neopelex form than mixed preparing by the quality of 2:1:1 among the described step ⑵.
Roughly select the K in the concentrate among the described step ⑶ +Mass content is 25.0 ~ 29.0%, Cl -Mass content is 8.5 ~ 13.3%, SO 4 2-Mass content is 37.0 ~ 44.0%.
K among the described step ⑶ in the rougher tailings +Mass content is 0.68 ~ 1.45%.
The mixed K that roughly selects concentrate among the described step ⑷ +Mass content is 25.7 ~ 28.6%, Cl -Mass content is 9.8 ~ 12.3%, SO 4 2-Mass content is 37.9 ~ 43.8%
The K of described step ⑸ concentrate +Mass content is 30.57 ~ 32.10%, Cl -Mass content is 2.70 ~ 4.80%, SO 4 2-Mass content is 51.2 ~ 54.7%.
The present invention compared with prior art has the following advantages:
1, the novel floating agent that adopts petroleum sodium sulfonate, lauryl sodium sulfate and neopelex mixed preparing to form among the present invention, this floating agent is primarily aimed in calcareous type salt lake bittern pH=9.34 ~ 11.58 and extracts glaserite, adopt this floating agent to make to roughly select yield to reach 79 ~ 88%, selected yield reaches 92 ~ 97%.
2, cost of the present invention is lower, and industrialization realizes easily.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
Fig. 1 is flow chart of the present invention.
The specific embodiment
Embodiment 1A kind of method of extracting glaserite from the carbonate-type salt lake may further comprise the steps:
⑴ mix salt pan, raw material Tibet potassium ores with quartering after, through the ball mill fragmentation, cross 40 mesh sieves, obtain the raw material after the fragmentation.
Wherein: K in the potassium ores of salt pan, raw material Tibet +Mass content is 4.70%, Cl -Mass content is 49.73%, SO 4 2-Mass content is 10.52%, CO 3 2-Mass content is 0.89%.
⑵ add the saturated mother liquor of 950g and 1mL floating agent in the raw material after the 150g fragmentation respectively, roughly select under 10 ℃ of temperature with groove type floatation cell, obtain foam solid-liquid A and mine tailing ore pulp A behind the 5min respectively.
Wherein: saturated mother liquor refers to K +, Cl -, SO 4 2-, CO 3 2-Be total to saturated solution, wherein K +Mass content is 3.5%, Cl -Mass content is 8.0%, SO 4 2-Mass content is 3.5%, CO 3 2-Mass content is 7.0%,, its pH value is 9.34.
Floating agent is to be 2% medicament by the mass concentration that petroleum sodium sulfonate, lauryl sodium sulfate and neopelex form than mixed preparing by the quality of 2:1:1.
⑶ after foam solid-liquid A separates after filtration, obtain solid phase and roughly select concentrate 25g and mother liquor A.Roughly select the K in the concentrate +Mass content is 29.0%, Cl -Mass content is 13.3%, SO 4 2-Mass content is 37.0%.
After mine tailing ore pulp A separates after filtration, obtain solid phase rougher tailings 185g and mother liquor B.K in the rougher tailings +Mass content is 0.68%.
Wherein: mother liquor A and mother liquor B be back to step ⑵ to roughly select operation recycling.
⑷ after repeating step ⑵ ~ ⑶ 6 ~ 8 times, gained is roughly selected concentrate mix.Wherein: the mixed K that roughly selects concentrate +Mass content is 25.7%, Cl -Mass content is 9.8%, SO 4 2-Mass content is 37.9%.
⑸ place flotation cell with the mixed concentrate of roughly selecting, and the feed liquid mass volume ratio (g/mL) of pressing 1:45 adds mother liquor A or mother liquor B, carries out selectedly under 25 ℃ of temperature, obtains foam solid-liquid B and mine tailing ore pulp B 9g behind the 5min respectively.
After foam solid-liquid B separates after filtration, obtain the glaserite mass content and be 87.3 ~ 91.0% concentrate 115g.Wherein: the K of concentrate +Mass content is 30.57%, Cl -Mass content is 4.80%, SO 4 2-Mass content is 54.7%.
Mine tailing ore pulp B is back to the operation of roughly selecting of described step ⑵.
Through measuring and calculating, roughly selecting yield is 79%, and selected yield is 92%.
Embodiment 2A kind of method of extracting glaserite from the carbonate-type salt lake may further comprise the steps:
⑴ mix salt pan, raw material Tibet potassium ores with quartering after, through the ball mill fragmentation, cross 40 mesh sieves, obtain the raw material after the fragmentation.
Wherein: K in the potassium ores of salt pan, raw material Tibet +Mass content is 10.07%, Cl -Mass content is 42.48%, SO 4 2-Mass content is 12.31%, CO 3 2-Mass content is 1.82%.
⑵ add the saturated mother liquor of 1050g and 2mL floating agent in the raw material after the 150g fragmentation respectively, roughly select under 20 ℃ of temperature with groove type floatation cell, obtain foam solid-liquid A and mine tailing ore pulp A behind the 4min respectively.
Wherein: saturated mother liquor refers to K +, Cl -, SO 4 2-, CO 3 2-Be total to saturated solution, wherein K +Mass content is 4.52%, Cl -Mass content is 10.93%, SO 4 2-Mass content is 1.5%, CO 3 2-Mass content is 12.0%,, its pH value is 11.58.
Floating agent is to be 2% medicament by the mass concentration that petroleum sodium sulfonate, lauryl sodium sulfate and neopelex form than mixed preparing by the quality of 2:1:1.
⑶ after foam solid-liquid A separates after filtration, obtain solid phase and roughly select concentrate 28g and mother liquor A.Roughly select the K in the concentrate +Mass content is 25.0%, Cl -Mass content is 8.5%, SO 4 2-Mass content is 44.0%.
After mine tailing ore pulp A separates after filtration, obtain solid phase rougher tailings 200g and mother liquor B.K in the rougher tailings +Mass content is 1.45%.
Mother liquor A and mother liquor B be back to step ⑵ to roughly select operation recycling.
⑷ after repeating step ⑵ ~ ⑶ 6 ~ 8 times, gained is roughly selected concentrate mix.Wherein: the mixed K that roughly selects concentrate +Mass content is 28.6%, Cl -Mass content is 10.5%, SO 4 2-Mass content is 43.8%.
⑸ place flotation cell with the mixed concentrate of roughly selecting, and the feed liquid mass volume ratio (g/mL) of pressing 1:52 adds mother liquor A or mother liquor B, carries out selectedly under 10 ℃ of temperature, obtains foam solid-liquid B and mine tailing ore pulp B 15g behind the 4min respectively.After foam solid-liquid B separates after filtration, obtain the glaserite mass content and be 87.3 ~ 91.0% concentrate 121g.Wherein: the K of concentrate +Mass content is 32.10%, Cl -Mass content is 2.70%, SO 4 2-Mass content is 51.2%.
Mine tailing ore pulp B is back to the operation of roughly selecting of step ⑵.
Through measuring and calculating, roughly selecting yield is 88%, and selected yield is 97%.
Embodiment 3A kind of method of extracting glaserite from the carbonate-type salt lake may further comprise the steps:
⑴ mix salt pan, raw material Tibet potassium ores with quartering after, through the ball mill fragmentation, cross 40 mesh sieves, obtain the raw material after the fragmentation.
Wherein: K in the potassium ores of salt pan, raw material Tibet +Mass content is 8.52%, Cl -Mass content is 45.66%, SO 4 2-Mass content is 5.17%, CO 3 2-Mass content is 1.87%.
⑵ add the saturated mother liquor of 1000g and 3mL floating agent in the raw material after the 150g fragmentation respectively, roughly select under 35 ℃ of temperature with groove type floatation cell, obtain foam solid-liquid A and mine tailing ore pulp A behind the 3min respectively.
Wherein: saturated mother liquor refers to K +, Cl -, SO 4 2-, CO 3 2-Be total to saturated solution, wherein K +Mass content is 4.0%, Cl -Mass content is 10.0%, SO 4 2-Mass content is 3.2%, CO 3 2-Mass content is 11.5%,, its pH value is 11.0.
Floating agent is to be 2% medicament by the mass concentration that petroleum sodium sulfonate, lauryl sodium sulfate and neopelex form than mixed preparing by the quality of 2:1:1.
⑶ after foam solid-liquid A separates after filtration, obtain solid phase and roughly select concentrate 32g and mother liquor A.Roughly select the K in the concentrate +Mass content is 27.2%, Cl -Mass content is 11.2%, SO 4 2-Mass content is 39.2%.
After mine tailing ore pulp A separates after filtration, obtain solid phase rougher tailings 210g and mother liquor B.K in the rougher tailings +Mass content is 1.02%.
Mother liquor A and mother liquor B be back to step ⑵ to roughly select operation recycling.
⑷ after repeating step ⑵ ~ ⑶ 6 ~ 8 times, gained is roughly selected concentrate mix.Wherein: the mixed K that roughly selects concentrate +Mass content is 27.2%, Cl -Mass content is 12.3%, SO 4 2-Mass content is 40.2%.
⑸ place flotation cell with the mixed concentrate of roughly selecting, and the feed liquid mass volume ratio (g/mL) of pressing 1:50 adds mother liquor A or mother liquor B, carries out selectedly under 35 ℃ of temperature, obtains foam solid-liquid B and mine tailing ore pulp B 12g behind the 4.5min respectively.After foam solid-liquid B separates after filtration, obtain the glaserite mass content and be 87.3 ~ 91.0% concentrate 125g; Wherein: the K of concentrate +Mass content is 31.2%, Cl -Mass content is 3.2%, SO 4 2-Mass content is 52.2%.
Mine tailing ore pulp B is back to the operation of roughly selecting of step ⑵.
Through measuring and calculating, roughly selecting yield is 85%, and selected yield is 95.5%.

Claims (2)

1. method of extracting glaserite from the carbonate-type salt lake may further comprise the steps:
⑴ mix salt pan, raw material Tibet potassium ores with quartering after, through the ball mill fragmentation, cross 40 mesh sieves, obtain the raw material after the fragmentation; K in the potassium ores of salt pan, described raw material Tibet +Mass content is 4.70 ~ 10.07%, Cl -Mass content is 42.48 ~ 49.73%, SO 4 2-Mass content is 5.17 ~ 12.31%, CO 3 2-Mass content is 0.89 ~ 1.87%;
⑵ add the saturated mother liquor of 950 ~ 1050g and 1 ~ 3mL floating agent respectively in the raw material after the described fragmentation of every 150g, roughly select under 10 ~ 35 ℃ of temperature with groove type floatation cell, obtain foam solid-liquid A and mine tailing ore pulp A behind 3 ~ 5min respectively; Described saturated mother liquor refers to K +, Cl -, SO 4 2-, CO 3 2-Be total to saturated solution, wherein K +Mass content is 3.5 ~ 4.52%, Cl -Mass content is 8.0 ~ 10.93%, SO 4 2-Mass content is 1.5 ~ 3.5%, CO 3 2-Mass content is 7.0 ~ 12.0%, and its pH value is 9.34 ~ 11.58; Described floating agent is to be 2% medicament by the mass concentration that petroleum sodium sulfonate, lauryl sodium sulfate and neopelex form than mixed preparing by the quality of 2:1:1;
⑶ after described foam solid-liquid A separates after filtration, obtain solid phase and roughly select concentrate and mother liquor A; After described mine tailing ore pulp A separates after filtration, obtain solid phase rougher tailings and mother liquor B; Described mother liquor A and described mother liquor B be back to described step ⑵ to roughly select operation recycling;
⑷ after repeating said steps ⑵ ~ ⑶ 6 ~ 8 times, gained is roughly selected concentrate mix;
⑸ place flotation cell with the described mixed concentrate of roughly selecting, and adds described mother liquor A or described mother liquor B by the feed liquid mass volume ratio of 1:45 ~ 1:52, carries out selectedly under 10 ~ 35 ℃ of temperature, obtains foam solid-liquid B and mine tailing ore pulp B behind 4 ~ 5min respectively; After described foam solid-liquid B separates after filtration, obtain the glaserite mass content and be 87.3 ~ 91.0% concentrate; Described mine tailing ore pulp B is back to the operation of roughly selecting of described step ⑵.
2. a kind of method of extracting glaserite from the carbonate-type salt lake as claimed in claim 1 is characterized in that: roughly select the K in the concentrate among the described step ⑶ +Mass content is 25.0 ~ 29.0%, Cl -Mass content is 8.5 ~ 13.3%, SO 4 2-Mass content is 37.0 ~ 44.0%.
3. a kind of method of extracting glaserite from the carbonate-type salt lake as claimed in claim 1 is characterized in that: the K among the described step ⑶ in the rougher tailings +Mass content is 0.68 ~ 1.45%.
4. a kind of method of extracting glaserite from the carbonate-type salt lake as claimed in claim 1 is characterized in that: the mixed K that roughly selects concentrate among the described step ⑷ +Mass content is 25.7 ~ 28.6%, Cl -Mass content is 9.8 ~ 12.3%, SO 4 2-Mass content is 37.9 ~ 43.8%.
5. a kind of method of extracting glaserite from the carbonate-type salt lake as claimed in claim 1 is characterized in that: the K of described step ⑸ concentrate +Mass content is 30.57 ~ 32.10%, Cl -Mass content is 2.70 ~ 4.80%, SO 4 2-Mass content is 51.2 ~ 54.7%.
CN 201210106566 2012-04-12 2012-04-12 Method for extracting vesuvius salt from carbonate saline lake Expired - Fee Related CN102626674B (en)

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Publication number Priority date Publication date Assignee Title
CN102849757B (en) * 2012-09-28 2014-04-02 中国科学院青海盐湖研究所 Floatation method for extracting aphthitalite and potassium chloride from carbonate type salt lake
CN104646190B (en) * 2015-02-13 2017-04-26 化工部长沙设计研究院 Method for floating and extracting glaserite concentrate by utilizing sulfate-type potassium mixed salt

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ES340234A1 (en) * 1966-05-13 1968-06-01 Lukes Production of potassium chloride from schoenite and from brines containing potassium,magnesium,chloride and sulfate
US3675773A (en) * 1969-08-06 1972-07-11 Occidental Petroleum Corp Flotation separation of glaserite from sodium chloride and other salts
US3910773A (en) * 1970-04-06 1975-10-07 Occidental Petroleum Corp Beneficiation of salts crystallized from searles lake brine
CN1101895A (en) * 1994-06-16 1995-04-26 李志忠 Process for producing potassium sulfate
CN1156396C (en) * 2001-05-18 2004-07-07 付国杰 Method for preparing potassium sulfate by one section conversion flotation process

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