CA2057165A1 - Method of improvement of the yield of electrostatic separation of salts - Google Patents

Method of improvement of the yield of electrostatic separation of salts

Info

Publication number
CA2057165A1
CA2057165A1 CA 2057165 CA2057165A CA2057165A1 CA 2057165 A1 CA2057165 A1 CA 2057165A1 CA 2057165 CA2057165 CA 2057165 CA 2057165 A CA2057165 A CA 2057165A CA 2057165 A1 CA2057165 A1 CA 2057165A1
Authority
CA
Canada
Prior art keywords
salts
electrostatic separation
yield
improvement
admixed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA 2057165
Other languages
French (fr)
Other versions
CA2057165C (en
Inventor
Gunter Fricke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kali und Salz Beteiligungs AG
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2057165A1 publication Critical patent/CA2057165A1/en
Application granted granted Critical
Publication of CA2057165C publication Critical patent/CA2057165C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C7/00—Separating solids from solids by electrostatic effect
    • B03C7/003—Pretreatment of the solids prior to electrostatic separation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C7/00—Separating solids from solids by electrostatic effect
    • B03C7/006—Charging without electricity supply, e.g. by tribo-electricity or pyroelectricity

Abstract

During the electrostatic separation of crude potash salts, rock salt of a defined grain size is admixed in order to increase the surface charge density and to improve the product yield.
CA 2057165 1990-12-11 1991-12-06 Method of improvement of the yield of electrostatic separation of salts Expired - Lifetime CA2057165C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19904039470 DE4039470C1 (en) 1990-12-11 1990-12-11 Useful material obtd. e.g. kieserite from potassium mineral - by milling, adding conditioning agent, adding rock salt to increase surface charge density and sepg. electrostatically
DEP4039470.0 1990-12-11

Publications (2)

Publication Number Publication Date
CA2057165A1 true CA2057165A1 (en) 1992-06-12
CA2057165C CA2057165C (en) 1996-07-09

Family

ID=6420037

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2057165 Expired - Lifetime CA2057165C (en) 1990-12-11 1991-12-06 Method of improvement of the yield of electrostatic separation of salts

Country Status (2)

Country Link
CA (1) CA2057165C (en)
DE (1) DE4039470C1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7635822B2 (en) 2006-08-04 2009-12-22 K+S Aktiengesellschaft Method for treating ground crude potassium salts that contain kieserite

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4214950C1 (en) * 1992-05-06 1994-01-05 Kali & Salz Ag Increasing yield in electrostatic sepn. of hard salt contg. carnallite - by recycling residue from potash purificn. stage to potash sepn. from kieserite
RU2369558C2 (en) * 2007-08-07 2009-10-10 ОАО "Сильвинит" Device for processing of sylvinite-carnallite raw materials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7635822B2 (en) 2006-08-04 2009-12-22 K+S Aktiengesellschaft Method for treating ground crude potassium salts that contain kieserite

Also Published As

Publication number Publication date
DE4039470C1 (en) 1992-01-30
CA2057165C (en) 1996-07-09

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry