CN107128916A

CN107128916A - A kind of sugar industry activated carbon

Info

Publication number: CN107128916A
Application number: CN201710266122.9A
Authority: CN
Inventors: 包志军
Original assignee: Jurong Shengda Environmental Protection Purifying Material Co Ltd
Current assignee: Jurong Shengda Environmental Protection Purifying Material Co Ltd
Priority date: 2017-04-21
Filing date: 2017-04-21
Publication date: 2017-09-05

Abstract

The present invention relates to a kind of sugar industry activated carbon, using coal or hard fruit shell as raw material, charing process is carried out after raw material is crushed, room temperature is subsequently cooled to, obtains carbide；Carbide is placed in maceration extract and soaks 6 8h, is then dried, the carbide after being impregnated；Carbide after dipping is subjected to activation process, then post-processed, finally sieves, produces；The maceration extract be by 100 parts of water, 45 parts of concentration for 37% hydrochloric acid, 56 parts of zinc oxide, 68 parts of potassium hydroxide mix.The activated carbon protects ecological environment not using timber as raw material, and to the good decolorizing effect of sugar products, extensively, cost is low for raw material sources.

Description

A kind of sugar industry activated carbon

Technical field

The present invention relates to a kind of activated carbon, especially a kind of activated carbon for sugar industry, belong to fine chemical technology Field.

Background technology

In the last few years, the quality requirement more and more higher of the domestic sugar products to sugar industry, the peace and quiet effect of activated carbon compared with It is good, therefore be widely used.In the prior art, sugar industry uses 10 more with using timber for raw material activated carbon with sugar charcoal per ton Cube timber is raw material, and China produces all size sugar charcoal per year in terms of 30,000 tons (accounting for total 6 of charcoal amount 1), about needs 300,000 cubes of timber, this Undoubtedly a large amount of forests will be caused to be cut down, heavy damage is ecological.

The content of the invention

There is provided one kind sugaring work for the deficiency existed present invention aim to address sugar industry activated carbon in the prior art Industry activated carbon, it is not using timber as raw material, and to the good decolorizing effect of sugar products.

Technical scheme

A kind of sugar industry activated carbon, is prepared from by the following method：

(1) using coal or hard fruit shell as raw material, charing process is carried out after raw material is crushed, room temperature is subsequently cooled to, obtains To carbide；

(2) maceration extract is prepared, carbide is placed in maceration extract and soaks 6-8h, is then dried, the charing after being impregnated Thing；

(3) carbide after dipping is subjected to activation process, then post-processed, finally sieved, produce；

In step (2), the maceration extract is hydrochloric acid, 5-6 parts of zinc oxide, the 6-8 by 100 parts of water, 4-5 parts of concentration for 37% Part potassium hydroxide is mixed, and the number is parts by weight.

Further, in step (1), the charing process refers to raw material isolation air heating 2-4h at 300-400 DEG C.

Further, the maceration extract is hydrochloric acid, 5 parts of zinc oxide, the 8 parts of hydroxides by 100 parts of water, 5 parts of concentration for 37% Potassium is mixed.

Further, in step (2), the drying temperature is 200-300 DEG C, and the time is 2-4h.

Further, in step (3), the activation temperature is 650-750 DEG C, and the time is 6-10h.

Further, in step (3), the post processing includes pickling, washing, drying successively.

Beneficial effects of the present invention：The activated carbon of the present invention, it protects ecological environment not using timber as raw material, and To the good decolorizing effect of sugar products, extensively, cost is low for raw material sources.

Embodiment

With reference to embodiment, the invention will be further described.

Embodiment 1

It will be put into after 100kg coal crushings in Muffle furnace and heat 3h in 400 DEG C, be subsequently cooled to room temperature, obtain carbide； Prepare maceration extract：Mixed, will be carbonized for 37% hydrochloric acid, 5kg zinc oxide, 8kg potassium hydroxide by 100kg water, 5kg concentration Thing, which is placed in maceration extract, soaks 6h, then 250 DEG C of baking 4h, the carbide after being impregnated；By the carbide after dipping at 700 DEG C Activation process 8h, then with watery hydrochloric acid pickling, be washed to neutrality again, finally dry, sieve, produce.

Embodiment 2

100kg palm shells are put into Muffle furnace and heat 4h in 350 DEG C, room temperature is cooled to, obtains carbide；Prepare dipping Liquid：Mixed by 100kg water, 5kg concentration for 37% hydrochloric acid, 5kg zinc oxide, 8kg potassium hydroxide, carbide is placed in leaching 8h is soaked in stain liquid, then 300 DEG C of baking 4h, the carbide after being impregnated；By the carbide after dipping in 650 DEG C of activation process 10h, then with watery hydrochloric acid pickling, be washed to neutrality again, finally dry, sieve, produce.

Embodiment 3

100kg coconut husks are put into Muffle furnace and heat 3h in 380 DEG C, room temperature is cooled to, obtains carbide；Prepare dipping Liquid：Mixed by 100kg water, 4kg concentration for 37% hydrochloric acid, 6kg zinc oxide, 8kg potassium hydroxide, carbide is placed in leaching 7h is soaked in stain liquid, then 300 DEG C of baking 4h, the carbide after being impregnated；By the carbide after dipping in 680 DEG C of activation process 6h, then with watery hydrochloric acid pickling, be washed to neutrality again, finally dry, sieve, produce.

Decoloration active carbon made from embodiment is carried out into iodine sorption value, mechanical strength and caramel to decolourize to test, be the results are shown in Table 1：

Table 1

	Iodine sorption value (mg/g)	Mechanical strength (%)	Caramel decolorization rate (%)
				Embodiment 1	1150	97	92
Embodiment 2	1020	98	93
				Embodiment 3	990	95	89

Claims

1. a kind of sugar industry activated carbon, it is characterised in that be prepared from by the following method：

(1) using coal or hard fruit shell as raw material, charing process is carried out after raw material is crushed, room temperature is subsequently cooled to, obtains charcoal Compound；

(2) maceration extract is prepared, carbide is placed in maceration extract and soaks 6-8h, is then dried, the carbide after being impregnated；

In step (2), the maceration extract is hydrochloric acid, 5-6 parts of zinc oxide, the 6-8 parts of hydrogen by 100 parts of water, 4-5 parts of concentration for 37% Potassium oxide is mixed, and the number is parts by weight.

2. sugar industry activated carbon as claimed in claim 1, it is characterised in that in step (1), the charing process refers to Raw material isolation air is heated into 2-4h at 300-400 DEG C.

3. sugar industry activated carbon as claimed in claim 1, it is characterised in that the maceration extract be by 100 parts of water, 5 parts Concentration for 37% hydrochloric acid, 5 parts of zinc oxide, 8 parts of potassium hydroxide mix.

4. sugar industry activated carbon as claimed in claim 1, it is characterised in that in step (2), the drying temperature is 200-300 DEG C, the time is 2-4h.

5. sugar industry activated carbon as claimed in claim 1, it is characterised in that in step (3), the activation temperature is 650-750 DEG C, the time is 6-10h.

6. the sugar industry activated carbon as described in any one of claim 1 to 5, it is characterised in that in step (3), it is described after Processing includes pickling, washing, drying successively.