SU889677A1 - Method of producing pigment - Google Patents
Method of producing pigment Download PDFInfo
- Publication number
- SU889677A1 SU889677A1 SU741984175A SU1984175A SU889677A1 SU 889677 A1 SU889677 A1 SU 889677A1 SU 741984175 A SU741984175 A SU 741984175A SU 1984175 A SU1984175 A SU 1984175A SU 889677 A1 SU889677 A1 SU 889677A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- cobalt
- pigment
- heat treatment
- mixture
- zinc oxide
- Prior art date
Links
Landscapes
- Inorganic Compounds Of Heavy Metals (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Description
Изобретение относитс к технолог получени пигментов, в частности зе леной гаммы, содержащих кобальт, и может быть использовано в лакокрасочной промьшшености и в цветной гидрометаллургии при переработке от ходов цинкового производства. Известен способ получени цинккобальтового пигмента путем взаимо действи сульфатного кобальтового раствора, полученного, в частности при обработке ксантогенатно-кобаль тового кека азотной кислотой с цин ковым электролитом, обработки реакционного продукта раствором соды, выделени из образовавшейс пульпы карбонатного осадка и его прокаливани при 1000-1 р . Недостатком данного способа вл етс многочисленность операций и сложность аппаратурного оформлени из-за применени агрессивных сред. Известен способ получени пигмента кобальт зеленый, включаннций приготовление шихты из окиси цинка и сернокислого кобальта мокрым смешением при медленном приливании последнего к суспензии цинковых белил в течение 3-4 ч, последующую сушку шихты при 800°С, измельчение твердого продукта сушки на дробилке или вальцах, прокаливание при 1000-1100 С, размол продукта прокаливани до получени порошка, проход щего без ос-. татка через сито с 1600 отв/см, промывку размолотого пигмента в дерев нных баках 5-6-кратным кип чением осадка водой, отделение пигмента из влачшой пасты фильтрованием, сушку его и дополнительный ./тонкий размол с сепарацией 2. Однако этот способ также сложен ввиду многостадийности, в частности, требует измельчени продукта после первой стадии термообработки - сушки , после второй термообработки The invention relates to a process for the production of pigments, in particular, a green scale containing cobalt, and can be used in the paint industry and in color hydrometallurgy in the processing of zinc production. A known method for producing a zinc-cobalt pigment by reacting a sulfate cobalt solution obtained, in particular, by treating xanthate-cobalt cake with nitric acid with zinc electrolyte, treating the reaction product with a solution of soda, separating carbonate residue from the resulting pulp and calcining it at 1000-100 . The disadvantage of this method is the multiplicity of operations and the complexity of instrumentation due to the use of aggressive media. A known method for producing cobalt green pigment, including the preparation of a mixture of zinc oxide and cobalt sulfate by wet mixing while slowly pouring the latter onto a suspension of zinc oxide for 3-4 hours, subsequent drying of the mixture at 800 ° C, grinding a solid drying product on a crusher or rolls, calcining at 1000-1100 ° C; grinding the calcination product to obtain a powder that passes without wasps. tatka through a sieve with 1600 holes / cm, washing the ground pigment in wooden tanks 5-6 times by boiling the precipitate with water, separating the pigment from the paste by filtering, drying it and additional fine grinding with separation 2. However, this method is also difficult due to the multistage, in particular, requires grinding the product after the first stage of heat treatment - drying, after the second heat treatment
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU741984175A SU889677A1 (en) | 1974-01-08 | 1974-01-08 | Method of producing pigment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU741984175A SU889677A1 (en) | 1974-01-08 | 1974-01-08 | Method of producing pigment |
Publications (1)
Publication Number | Publication Date |
---|---|
SU889677A1 true SU889677A1 (en) | 1981-12-15 |
Family
ID=20572031
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU741984175A SU889677A1 (en) | 1974-01-08 | 1974-01-08 | Method of producing pigment |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU889677A1 (en) |
-
1974
- 1974-01-08 SU SU741984175A patent/SU889677A1/en active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5198025A (en) | Preparation of metal oxide-doped zinc oxide pigments | |
CN107935038B (en) | Preparation process of special titanium dioxide for plastic color master batch | |
US4382822A (en) | Synthetic rhombohedral magnetite pigment | |
EP0704499B1 (en) | Highly transparent, yellow iron oxide pigments, process for their preparation and their use | |
EP0704501B1 (en) | Highly transparent, red iron oxide pigments, process for their preparation and their use | |
SU889677A1 (en) | Method of producing pigment | |
US2956859A (en) | Preparation of anhydrite | |
US2020918A (en) | Zinc sulphide | |
US3981978A (en) | Working up aqueous titanium dioxide hydrate suspensions | |
AU675161B2 (en) | Pure-coloured iron oxide direct red pigments and a process for their production as well as their use | |
DE3509268C2 (en) | Process for the production of iron oxide red pigments from manganese-containing iron sulfate heptahydrate residues | |
GB2040904A (en) | Synthetic rhombohedral magnetite pigment | |
US2249330A (en) | Lead sulphate | |
US2112357A (en) | Process of making calcium sulphatezinc sulphide pigments | |
US2549261A (en) | Calcium sulfate-extended titanium dioxide pigments | |
US3709709A (en) | Kaolin derived pigments and methods of producing the same | |
US3717702A (en) | Process for treating phosphate ore | |
EP0406605B1 (en) | Process for the calcination of filter cakes in directly heated rotary furnaces | |
US2869984A (en) | Process for the production of sodium aluminate solution | |
US2136376A (en) | Manufacture of zinc sulphide | |
CN109225148A (en) | It is a kind of improve washing efficiency filter aid and its application | |
US1148092A (en) | Method of making alumina. | |
US2842428A (en) | Production of purified titanium dioxide pigment | |
US2147379A (en) | Method for producing high grade zinc oxide | |
CN109911932A (en) | Plastic masterbatch special titanium pigment |