CN105542226A - Inorganic filler produced from titanium gypsum and used for wood plastic materials - Google Patents
Inorganic filler produced from titanium gypsum and used for wood plastic materials Download PDFInfo
- Publication number
- CN105542226A CN105542226A CN201510857546.3A CN201510857546A CN105542226A CN 105542226 A CN105542226 A CN 105542226A CN 201510857546 A CN201510857546 A CN 201510857546A CN 105542226 A CN105542226 A CN 105542226A
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- CN
- China
- Prior art keywords
- titanium gypsum
- gypsum
- titanium
- wood plastic
- coupling agent
- 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.)
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2265—Oxides; Hydroxides of metals of iron
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The invention provides an inorganic filler produced from titanium gypsum and used for wood plastic materials, and belongs to the technical field of comprehensive utilization of solid wastes. An alkaline substance is directly added in the sulfuric acid method titanium dioxide production process to convert soluble salts in a titanium gypsum slurry into insoluble substances, the titanium gypsum slurry is filtered, a high temperature drying process is carried out to dehydrate and decompose dihydrate gypsum, iron hydroxide, aluminum hydroxide and other hydrophilic substances in the titanium gypsum into semi-hydrated gypsum, iron oxide and alumina with poor hydrophilic property, a coupling is adopted to carry out surface modification on the dried titanium gypsum in order to improve the lipophilic property of the dried titanium gypsum, and ball milling is carried out to obtain modified gypsum powder with the particle size being smaller than 700 meshes. The inorganic filler used in the production of the wood plastic materials can be used to substantially improve the hardness and the strength of wood plastic products and effectively reduce the raw material cost of the wood plastic products, so a new effective approach is provided for comprehensive utilization of the titanium gypsum.
Description
Technical field:
The invention belongs to technical field of comprehensive utilization of solid waste.Be specifically related to utilize and a kind ofly prepare mineral filler when Wood-plastic material is produced by titanium gypsum.
Background technology:
Titanium gypsum slag is that its major ingredient is terra alba, and content is greater than 70% with the by product obtained after lime treatment acid waste water in titanium dioxide industry, in addition containing compositions such as a certain proportion of ironic hydroxide, ferrous sulfate and aluminium hydroxides.Industrial sulfuric acid process often produces one ton of titanium dioxide will produce six tons of titanium gypsum.2011, China's titanium white powder ultimate production was 181.2 ten thousand tons, and the annual emissions of titanium gypsum is more than 1,000 ten thousand tons.Also pollution is caused, serious harm human health to the water quality and air of stacking ground while being deposited in of titanium gypsum takies a large amount of land resources.Therefore, the comprehensive utilization how realizing titanium gypsum, to reduce environmental pollution, to economize the land resource, has become the problem that of current titanium dioxide industry is extremely urgent.
Relatively other industrial gypsums, titanium gypsum has that crystalline size is little, water content is many, viscosity is large, foreign matter content high, larger limit it and effectively utilizes.A kind of method utilizing marble wastes, titanium gypsum and sulfuric acid wastewater containing to produce complex cement adjustable solidification agent is mentioned in patent " a kind of method-201010223620.3 utilizing marble wastes to prepare cementitious composite adjustable solidification agent "; Mention in patent " chemical industrial gypsum building materials and manufacture method-200710075766.6 thereof " and a kind ofly titanium gypsum, flyash, slag and cement clinker are mixed in proportion the method preparing gypsum building material product; Patent mentions a kind of method preparing plaster of Paris building block after just dried titanium gypsum powder, semi-dry desulphurization ash, light skeletal, paper fiber, gypsum activation agent, retardant and water reducer mix by a certain percentage in " utilizing titanium gypsum to prepare the method-201010256277.2 of gypsum block ".The above-mentioned Application way about titanium gypsum focuses mostly in cement building material field, relative to titanium gypsum quantum of output utilize scope narrower, limit the comprehensive utilization of titanium gypsum.
Summary of the invention:
The present invention is directed to the problem that current titanium gypsum utilizes difficulty and utilizes scope narrower, propose a kind of new titanium gypsum Application way.First directly add in Titanium White Production By Sulfuric Acid Process process after the soluble salt in titanium gypsum slurries is converted into insoluble substance by alkaline matter and filter, while dehydration, the dihydrate gypsum in titanium gypsum is made by hyperthermia drying process, ironic hydroxide, the hydroaropic substances such as aluminium hydroxide are decomposed to form the poor semi-hydrated gypsum of wetting ability, ferric oxide and aluminum oxide, by coupling agent, surface modification is carried out to the titanium gypsum after oven dry again and improve its lipophilicity, appropriate particle size is obtained finally by ball milling, modified landplaster is obtained after sieving, can be used as the mineral filler of Wood-plastic material production.
Concrete steps of the present invention are as follows:
1) get in Titanium White Production By Sulfuric Acid Process the titanium gypsum slurries adding lime and obtain, add a certain amount of carbide slag or red mud under agitation condition and regulate slurry pH value to be 8 ~ 8.5.
2) filter cake obtained after being filtered by above-mentioned slurry drying and dewatering 30 ~ 50 minutes at 400 ~ 500 DEG C, obtains the titanium gypsum after drying.
3) titanium gypsum after oven dry is added coupling agent according to mass ratio 1:0.01 ~ 0.05, mix.
4) mixture ball milling step 3) obtained, crosses 800 mesh sieves, namely obtains the modified landplaster of the mineral filler that can be used as Wood-plastic material.
Titanium gypsum is made modified landplaster by the present invention after processing treatment, after adding Wood-plastic material as the mineral filler of Wood-plastic material, hardness and the intensity of wood-plastic products can be significantly improved, effectively reduce wood-plastic products raw materials cost, for comprehensive utilization titanium gypsum provides a new effective way.
Claims (3)
1. prepare Wood-plastic material mineral filler with titanium gypsum, it is characterized in that this invention specific implementation step is as follows:
(1) get in Titanium White Production By Sulfuric Acid Process the titanium gypsum slurries adding lime and obtain, add a certain amount of carbide slag or red mud under agitation condition and regulate slurry pH value to be 7 ~ 8.5; (2) filter cake obtained after being filtered by above-mentioned slurry drying and dewatering 30 ~ 50 minutes at 400 ~ 500 DEG C, obtains the titanium gypsum after drying; (3) titanium gypsum after oven dry is added coupling agent according to mass ratio 1:0.01 ~ 0.07, mix the mixture ball milling that step (3) obtains by (4), cross 700 mesh sieves, namely obtain the modified landplaster of the mineral filler that can be used as Wood-plastic material.
2. according to claim 1, prepare Wood-plastic material mineral filler with titanium gypsum, it is characterized in that: described coupling agent is: the one of silane coupling agent, titanate coupling agent, aluminate coupling agent and aluminium titanium composite coupler.
3. according to claim 1, prepare Wood-plastic material mineral filler with titanium gypsum, it is characterized in that: described modified landplaster: particle diameter is less than 700 orders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510857546.3A CN105542226A (en) | 2015-11-30 | 2015-11-30 | Inorganic filler produced from titanium gypsum and used for wood plastic materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510857546.3A CN105542226A (en) | 2015-11-30 | 2015-11-30 | Inorganic filler produced from titanium gypsum and used for wood plastic materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105542226A true CN105542226A (en) | 2016-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510857546.3A Pending CN105542226A (en) | 2015-11-30 | 2015-11-30 | Inorganic filler produced from titanium gypsum and used for wood plastic materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105542226A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114591012A (en) * | 2022-03-25 | 2022-06-07 | 秦亚琼 | Method for preparing inorganic filler for filling through titanium gypsum |
-
2015
- 2015-11-30 CN CN201510857546.3A patent/CN105542226A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114591012A (en) * | 2022-03-25 | 2022-06-07 | 秦亚琼 | Method for preparing inorganic filler for filling through titanium gypsum |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160504 |
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| WD01 | Invention patent application deemed withdrawn after publication |