SU411042A1 - - Google Patents

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Publication number
SU411042A1
SU411042A1 SU1761667A SU1761667A SU411042A1 SU 411042 A1 SU411042 A1 SU 411042A1 SU 1761667 A SU1761667 A SU 1761667A SU 1761667 A SU1761667 A SU 1761667A SU 411042 A1 SU411042 A1 SU 411042A1
Authority
SU
USSR - Soviet Union
Prior art keywords
chalk
additive
hydrophobization
grinding
introducing
Prior art date
Application number
SU1761667A
Other languages
Russian (ru)
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 filed Critical
Priority to SU1761667A priority Critical patent/SU411042A1/ru
Application granted granted Critical
Publication of SU411042A1 publication Critical patent/SU411042A1/ru

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  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Disintegrating Or Milling (AREA)

Description

1one

Изобретение вноситс  к области гидрофобизации мела, примен емого в качестве наполнител  в производстве строительных пластмасс, резин и других материалов.The invention is introduced to the field of hydrophobization of chalk, used as a filler in the production of building plastics, rubbers and other materials.

РЬвестен способ гидрофобизации мела путем введени  части (0,5%) гидрофобизующей добавки (жирных кислот) в материал с влажностью 10-14% с последующей сушкой при температуре 300-600°С, введением остального количества добавки (от 0,5 до 1%) и измельчением в помольном агрегате при температуре 90-140°С.The known method of hydrophobization of chalk by introducing a part (0.5%) of a water-repellent additive (fatty acid) into a material with a moisture content of 10-14%, followed by drying at a temperature of 300-600 ° C, introducing the rest of the additive (from 0.5 to 1% ) and grinding in the grinding unit at a temperature of 90-140 ° C.

Недостатками известного способа  вл ютс  невысока  водоотталкивающа  способность продукта, а также сложность процесса из-за двухкратного введени  добавки и использовани  высоких температур.The disadvantages of this method are the low water repellency of the product, as well as the complexity of the process due to the double addition of the additive and the use of high temperatures.

По нредлагаемому снособу дл  повыщени  водоотталкивающей способности продукта и упрощени  процесса гидрофобизацию осуществл ют при содержании влаги в меле в пределах 0,5-1,0% и гидрофобизующую добавку ввод т перед измельчением в одну стадию.According to the proposed procedure, in order to increase the water repellency of the product and simplify the process, the hydrophobization is carried out with a moisture content in the chalk in the range of 0.5-1.0% and the hydrophobic additive is introduced before grinding in one stage.

Пример. 3 кг комового мела с карьерной влажность1о 12% дроб т, высушивают до остаточного содержани  в нем воды 0,6% и смешивают с 1,5%-ной жирной (стеариновой) кислотой. Полученпую смесь обрабатывают в течение 10 мин в вибрационной мельнице емкостью 10 л при частоте колебаний 3000 в минуту и амплитуде 3 мм. В результате получают ма1ериал, водоотталкивающа  способность которого характеризуетс  временем пастообразовани  23 мин, в то врем  как по известному способу это врем  равно 3- 11 мин.Example. 3 kg of lump chalk with a career humidity of 12% is crushed, dried to a residual water content of 0.6%, and mixed with 1.5% fatty (stearic) acid. The resulting mixture is treated for 10 minutes in a 10-liter vibratory mill with an oscillation frequency of 3000 per minute and an amplitude of 3 mm. As a result, a material is obtained, the water-repellent ability of which is characterized by a pasture formation time of 23 minutes, while by a known method this time is 3-11 minutes.

Предмет изобретеип Subject invention

Способ гидрофобизации мела путем введени  добавки с последующим измельчением, отличающийс  тем, что, с целью повышени  водоотталкиваюп еп способности продукта и упрощени  процесса, гидрофобизацию осуществл ют при содержании влаги в меле в пределах 0,5-1,0% и добавку ввод т перед измельчением в одну стадию.The method of hydrophobization of chalk by introducing an additive followed by grinding, characterized in that, in order to increase the water repellency of the product and simplify the process, the hydrophobization is carried out at a moisture content of chalk in the range of 0.5-1.0% and the additive is introduced before grinding in one stage.

SU1761667A 1972-03-20 1972-03-20 SU411042A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1761667A SU411042A1 (en) 1972-03-20 1972-03-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1761667A SU411042A1 (en) 1972-03-20 1972-03-20

Publications (1)

Publication Number Publication Date
SU411042A1 true SU411042A1 (en) 1974-01-15

Family

ID=20507249

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1761667A SU411042A1 (en) 1972-03-20 1972-03-20

Country Status (1)

Country Link
SU (1) SU411042A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005075353A1 (en) * 2004-02-05 2005-08-18 Imerys Minerals Limited Natural particulate carbonate
RU2543209C1 (en) * 2013-09-10 2015-02-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Воронежский государственный университет инженерных технологий" (ФГБОУ ВПО "ВГУИТ") Method of hydrophobic filler obtainment for polymers by chemical deposit calcium carbonate modification by stearic acid
RU2568620C1 (en) * 2014-10-22 2015-11-20 Виктор Алексеевич Полубабкин Method of obtaining and composition of activated reinforced mineral powder
EP2349929B1 (en) 2008-09-12 2019-03-27 Imerys Pigments, Inc. Stearic acid-treated calcium carbonate compositions having low or no detectable free stearic acid and related methods

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005075353A1 (en) * 2004-02-05 2005-08-18 Imerys Minerals Limited Natural particulate carbonate
EP2349929B1 (en) 2008-09-12 2019-03-27 Imerys Pigments, Inc. Stearic acid-treated calcium carbonate compositions having low or no detectable free stearic acid and related methods
RU2543209C1 (en) * 2013-09-10 2015-02-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Воронежский государственный университет инженерных технологий" (ФГБОУ ВПО "ВГУИТ") Method of hydrophobic filler obtainment for polymers by chemical deposit calcium carbonate modification by stearic acid
RU2568620C1 (en) * 2014-10-22 2015-11-20 Виктор Алексеевич Полубабкин Method of obtaining and composition of activated reinforced mineral powder

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